CONFIG_PREEMPT_REALTIME, 'Fully Preemptible Kernel', VP-2.6.9-rc4-mm1-T4

Im getting this on a make bzImage:

CC fs/xfs/xfs_inode_item.o
fs/xfs/xfs_inode_item.c: In function `xfs_inode_item_pushbuf':
fs/xfs/xfs_inode_item.c:803: error: structure has no member named count' fs/xfs/xfs_inode_item.c:825: error: structure has no member named count' make[2]: *** [fs/xfs/xfs_inode_item.o] Error 1

I'm currently running 2.6.9-rc4-mm1-U1 without error. I backed out the U1 patch, applied the new one, did a make oldconfig, make clean, make bzImage, make modules. My config is attached.

\__ Jason Munro
\__ [email protected]
\__ http://hastymail.sourceforge.net/

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.9-rc4-mm1-RT-U5
# Mon Oct 18 10:23:45 2004
#
CONFIG_X86=y
CONFIG_MMU=y
CONFIG_UID16=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_IOMAP=y

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y
# CONFIG_CLEAN_COMPILE is not set
CONFIG_BROKEN=y
CONFIG_BROKEN_ON_SMP=y

#
# General setup
#
CONFIG_LOCALVERSION=""
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
# CONFIG_POSIX_MQUEUE is not set
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
# CONFIG_AUDIT is not set
CONFIG_LOG_BUF_SHIFT=14
CONFIG_HOTPLUG=y
CONFIG_KOBJECT_UEVENT=y
# CONFIG_IKCONFIG is not set
# CONFIG_EMBEDDED is not set
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
CONFIG_KALLSYMS_EXTRA_PASS=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SHMEM=y
# CONFIG_TINY_SHMEM is not set

#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
CONFIG_OBSOLETE_MODPARM=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y

#
# Processor type and features
#
CONFIG_X86_PC=y
# CONFIG_X86_ELAN is not set
# CONFIG_X86_VOYAGER is not set
# CONFIG_X86_NUMAQ is not set
# CONFIG_X86_SUMMIT is not set
# CONFIG_X86_BIGSMP is not set
# CONFIG_X86_VISWS is not set
# CONFIG_X86_GENERICARCH is not set
# CONFIG_X86_ES7000 is not set
# CONFIG_M386 is not set
# CONFIG_M486 is not set
# CONFIG_M586 is not set
# CONFIG_M586TSC is not set
# CONFIG_M586MMX is not set
# CONFIG_M686 is not set
# CONFIG_MPENTIUMII is not set
# CONFIG_MPENTIUMIII is not set
# CONFIG_MPENTIUMM is not set
CONFIG_MPENTIUM4=y
# CONFIG_MK6 is not set
# CONFIG_MK7 is not set
# CONFIG_MK8 is not set
# CONFIG_MCRUSOE is not set
# CONFIG_MWINCHIPC6 is not set
# CONFIG_MWINCHIP2 is not set
# CONFIG_MWINCHIP3D is not set
# CONFIG_MCYRIXIII is not set
# CONFIG_MVIAC3_2 is not set
# CONFIG_X86_GENERIC is not set
CONFIG_X86_CMPXCHG=y
CONFIG_X86_XADD=y
CONFIG_X86_L1_CACHE_SHIFT=7
CONFIG_RWSEM_GENERIC=y
CONFIG_GENERIC_SEMAPHORES=y
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=y
CONFIG_X86_GOOD_APIC=y
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
# CONFIG_SMP is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_BKL=y
CONFIG_PREEMPT_VOLUNTARY=y
CONFIG_PREEMPT_SOFTIRQS=y
CONFIG_PREEMPT_HARDIRQS=y
CONFIG_PREEMPT_REALTIME=y
# CONFIG_X86_UP_APIC is not set
CONFIG_X86_TSC=y
CONFIG_X86_MCE=y
# CONFIG_X86_MCE_NONFATAL is not set
CONFIG_TOSHIBA=y
# CONFIG_I8K is not set
# CONFIG_MICROCODE is not set
# CONFIG_X86_MSR is not set
# CONFIG_X86_CPUID is not set

#
# Firmware Drivers
#
# CONFIG_EDD is not set
CONFIG_NOHIGHMEM=y
# CONFIG_HIGHMEM4G is not set
# CONFIG_HIGHMEM64G is not set
# CONFIG_MATH_EMULATION is not set
CONFIG_MTRR=y
# CONFIG_EFI is not set
CONFIG_HAVE_DEC_LOCK=y
CONFIG_REGPARM=y

#
# Performance-monitoring counters support
#
# CONFIG_PERFCTR is not set
CONFIG_KEXEC=y
# CONFIG_CRASH_DUMP is not set

#
# Power management options (ACPI, APM)
#
CONFIG_PM=y
# CONFIG_PM_DEBUG is not set
# CONFIG_SOFTWARE_SUSPEND is not set

#
# ACPI (Advanced Configuration and Power Interface) Support #
CONFIG_ACPI=y
CONFIG_ACPI_BOOT=y
CONFIG_ACPI_INTERPRETER=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_SLEEP_PROC_FS=y
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_FAN=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_THERMAL=y
# CONFIG_ACPI_ASUS is not set CONFIG_ACPI_THINKPAD=m
CONFIG_ACPI_TOSHIBA=y
# CONFIG_ACPI_CUSTOM_DSDT is not set CONFIG_ACPI_BLACKLIST_YEAR=0
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_BUS=y
CONFIG_ACPI_EC=y
CONFIG_ACPI_POWER=y
CONFIG_ACPI_PCI=y
CONFIG_ACPI_SYSTEM=y
# CONFIG_X86_PM_TIMER is not set

#
# APM (Advanced Power Management) BIOS Support
#
# CONFIG_APM is not set

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
# CONFIG_CPU_FREQ_PROC_INTF is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y CONFIG_CPU_FREQ_GOV_PERFORMANCE=m CONFIG_CPU_FREQ_GOV_POWERSAVE=m CONFIG_CPU_FREQ_GOV_USERSPACE=y
# CONFIG_CPU_FREQ_24_API is not set
# CONFIG_CPU_FREQ_GOV_ONDEMAND is not set CONFIG_CPU_FREQ_TABLE=y

#
# CPUFreq processor drivers
#
# CONFIG_X86_ACPI_CPUFREQ is not set
# CONFIG_X86_POWERNOW_K6 is not set
# CONFIG_X86_POWERNOW_K7 is not set
# CONFIG_X86_POWERNOW_K8 is not set
# CONFIG_X86_GX_SUSPMOD is not set
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
# CONFIG_X86_SPEEDSTEP_ICH is not set
# CONFIG_X86_SPEEDSTEP_SMI is not set
CONFIG_X86_P4_CLOCKMOD=y
# CONFIG_X86_CPUFREQ_NFORCE2 is not set
# CONFIG_X86_LONGRUN is not set
# CONFIG_X86_LONGHAUL is not set

#

# shared options
#
CONFIG_X86_SPEEDSTEP_LIB=y

#
# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
#
CONFIG_PCI=y
# CONFIG_PCI_GOBIOS is not set
# CONFIG_PCI_GOMMCONFIG is not set
# CONFIG_PCI_GODIRECT is not set
CONFIG_PCI_GOANY=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
# CONFIG_PCI_LEGACY_PROC is not set
CONFIG_PCI_NAMES=y
CONFIG_ISA=y
# CONFIG_EISA is not set
# CONFIG_MCA is not set
# CONFIG_SCx200 is not set

#
# PCMCIA/CardBus support
#
CONFIG_PCMCIA=y
# CONFIG_PCMCIA_DEBUG is not set
CONFIG_YENTA=y
CONFIG_CARDBUS=y
# CONFIG_PD6729 is not set
# CONFIG_I82092 is not set
# CONFIG_I82365 is not set
# CONFIG_TCIC is not set
CONFIG_PCMCIA_PROBE=y

#
# PCI Hotplug Support
#
# CONFIG_HOTPLUG_PCI is not set

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_AOUT=y
CONFIG_BINFMT_MISC=y

#
# Device Drivers
#

#
# Generic Driver Options
#
# CONFIG_STANDALONE is not set
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=m
# CONFIG_DEBUG_DRIVER is not set

#
# Memory Technology Devices (MTD)
#
# CONFIG_MTD is not set

#
# Parallel port support
#
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_PC_CML1=m
# CONFIG_PARPORT_SERIAL is not set
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
# CONFIG_PARPORT_PC_PCMCIA is not set
# CONFIG_PARPORT_OTHER is not set
CONFIG_PARPORT_1284=y

#
# Plug and Play support
#
# CONFIG_PNP is not set

#
# Block devices
#
CONFIG_BLK_DEV_FD=m
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
CONFIG_BLK_DEV_LOOP=m
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=4096
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
# CONFIG_LBD is not set
# CONFIG_CDROM_PKTCDVD is not set

#
# ATA/ATAPI/MFM/RLL support
#
CONFIG_IDE=y
CONFIG_BLK_DEV_IDE=y

#
# Please see Documentation/ide.txt for help/info on IDE drives #
# CONFIG_BLK_DEV_IDE_SATA is not set
# CONFIG_BLK_DEV_HD_IDE is not set CONFIG_BLK_DEV_IDEDISK=y
CONFIG_IDEDISK_MULTI_MODE=y
CONFIG_BLK_DEV_IDECS=m
CONFIG_BLK_DEV_IDECD=y
# CONFIG_BLK_DEV_IDETAPE is not set CONFIG_BLK_DEV_IDEFLOPPY=m
# CONFIG_BLK_DEV_IDESCSI is not set
# CONFIG_IDE_TASK_IOCTL is not set

#
# IDE chipset support/bugfixes
#
CONFIG_IDE_GENERIC=y
# CONFIG_BLK_DEV_CMD640 is not set
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_SHARE_IRQ=y
# CONFIG_BLK_DEV_OFFBOARD is not set
CONFIG_BLK_DEV_GENERIC=y
# CONFIG_BLK_DEV_OPTI621 is not set
# CONFIG_BLK_DEV_RZ1000 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_IDEDMA_FORCED is not set
CONFIG_IDEDMA_PCI_AUTO=y
# CONFIG_IDEDMA_ONLYDISK is not set
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_ATIIXP is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CY82C693 is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT34X is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_SC1200 is not set
CONFIG_BLK_DEV_PIIX=y
# CONFIG_BLK_DEV_NS87415 is not set
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SIS5513 is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_IDE_ARM is not set
# CONFIG_IDE_CHIPSETS is not set
CONFIG_BLK_DEV_IDEDMA=y
# CONFIG_IDEDMA_IVB is not set
CONFIG_IDEDMA_AUTO=y
# CONFIG_BLK_DEV_HD is not set

#
# SCSI device support
#
CONFIG_SCSI=y
# CONFIG_SCSI_PROC_FS is not set

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
# CONFIG_BLK_DEV_SR is not set
CONFIG_CHR_DEV_SG=m

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs #
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set

#
# SCSI Transport Attributes
#
# CONFIG_SCSI_SPI_ATTRS is not set
# CONFIG_SCSI_FC_ATTRS is not set

#
# SCSI low-level drivers
#
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA152X is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_SCSI_SATA is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_CPQFCTS is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_NCR53C406A is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PCI2000 is not set
# CONFIG_SCSI_PCI2220I is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_ISP is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLOGIC_1280_1040 is not set
CONFIG_SCSI_QLA2XXX=y
# CONFIG_SCSI_QLA21XX is not set
# CONFIG_SCSI_QLA22XX is not set
# CONFIG_SCSI_QLA2300 is not set
# CONFIG_SCSI_QLA2322 is not set
# CONFIG_SCSI_QLA6312 is not set
# CONFIG_SCSI_QLA6322 is not set
# CONFIG_SCSI_SEAGATE is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
# CONFIG_SCSI_ULTRASTOR is not set
# CONFIG_SCSI_NSP32 is not set
# CONFIG_SCSI_DEBUG is not set

#
# PCMCIA SCSI adapter support
#
# CONFIG_PCMCIA_AHA152X is not set
# CONFIG_PCMCIA_FDOMAIN is not set
# CONFIG_PCMCIA_NINJA_SCSI is not set
# CONFIG_PCMCIA_QLOGIC is not set
# CONFIG_PCMCIA_SYM53C500 is not set

#
# Old CD-ROM drivers (not SCSI, not IDE)
#
# CONFIG_CD_NO_IDESCSI is not set

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set

#
# Fusion MPT device support
#
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_IEEE1394 is not set

#
# I2O device support
#
# CONFIG_I2O is not set

#
# Networking support
#
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
# CONFIG_NETLINK_DEV is not set
CONFIG_UNIX=y
CONFIG_NET_KEY=m
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET_TUNNEL=m

#
# IP: Virtual Server Configuration
#
# CONFIG_IP_VS is not set
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set

#
# IP: Netfilter Configuration
#
# CONFIG_IP_NF_CONNTRACK is not set
# CONFIG_IP_NF_QUEUE is not set
# CONFIG_IP_NF_IPTABLES is not set
# CONFIG_IP_NF_ARPTABLES is not set
# CONFIG_IP_NF_COMPAT_IPCHAINS is not set
# CONFIG_IP_NF_COMPAT_IPFWADM is not set
CONFIG_XFRM=y
CONFIG_XFRM_USER=m

#
# SCTP Configuration (EXPERIMENTAL)
#
# CONFIG_IP_SCTP is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set
# CONFIG_NET_CLS_ROUTE is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_KGDBOE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NETPOLL_RX is not set
# CONFIG_NETPOLL_TRAP is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set

#
# ARCnet devices
#
# CONFIG_ARCNET is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set

#
# Tulip family network device support
#
# CONFIG_NET_TULIP is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_AMD8111_ETH is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_AC3200 is not set
# CONFIG_APRICOT is not set
# CONFIG_B44 is not set
# CONFIG_FORCEDETH is not set
# CONFIG_CS89x0 is not set
# CONFIG_DGRS is not set
CONFIG_EEPRO100=y
# CONFIG_E100 is not set
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_E1000 is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_R8169 is not set
# CONFIG_SK98LIN is not set
# CONFIG_VIA_VELOCITY is not set
# CONFIG_TIGON3 is not set

#
# Ethernet (10000 Mbit)
#
# CONFIG_IXGB is not set
# CONFIG_S2IO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set

#
# Wireless LAN (non-hamradio)
#
CONFIG_NET_RADIO=y

#
# Obsolete Wireless cards support (pre-802.11)
#
# CONFIG_STRIP is not set
# CONFIG_ARLAN is not set
# CONFIG_WAVELAN is not set
# CONFIG_PCMCIA_WAVELAN is not set
# CONFIG_PCMCIA_NETWAVE is not set

#
# Wireless 802.11 Frequency Hopping cards support
#
# CONFIG_PCMCIA_RAYCS is not set

#
# Wireless 802.11b ISA/PCI cards support
#
# CONFIG_AIRO is not set
# CONFIG_HERMES is not set
# CONFIG_ATMEL is not set

#
# Wireless 802.11b Pcmcia/Cardbus cards support
#
# CONFIG_AIRO_CS is not set
# CONFIG_PCMCIA_WL3501 is not set

#
# Prism GT/Duette 802.11(a/b/g) PCI/Cardbus support #
# CONFIG_PRISM54 is not set CONFIG_NET_WIRELESS=y

#
# PCMCIA network device support
#
CONFIG_NET_PCMCIA=y
CONFIG_PCMCIA_3C589=m
CONFIG_PCMCIA_3C574=m
CONFIG_PCMCIA_FMVJ18X=m
CONFIG_PCMCIA_PCNET=m
CONFIG_PCMCIA_NMCLAN=m
CONFIG_PCMCIA_SMC91C92=m
CONFIG_PCMCIA_XIRC2PS=m
CONFIG_PCMCIA_AXNET=m

#
# Wan interfaces
#
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
CONFIG_PPP=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPP_FILTER=y
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
# CONFIG_PPPOE is not set
# CONFIG_SLIP is not set
# CONFIG_NET_FC is not set
# CONFIG_SHAPER is not set
# CONFIG_NETCONSOLE is not set

#
# ISDN subsystem
#
# CONFIG_ISDN is not set

#
# Telephony Support
#
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_TSDEV is not set
CONFIG_INPUT_EVDEV=m
# CONFIG_INPUT_EVBUG is not set

#
# Input I/O drivers
#
# CONFIG_GAMEPORT is not set
CONFIG_SOUND_GAMEPORT=y
CONFIG_SERIO=y
CONFIG_SERIO_I8042=y
# CONFIG_SERIO_SERPORT is not set
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PARKBD is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=m
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_INPORT is not set
# CONFIG_MOUSE_LOGIBM is not set
# CONFIG_MOUSE_PC110PAD is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_SERIAL_NONSTANDARD is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_CONSOLE is not set
CONFIG_SERIAL_8250_CS=m
# CONFIG_SERIAL_8250_ACPI is not set
CONFIG_SERIAL_8250_NR_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set

#
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=y
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set
# CONFIG_TIPAR is not set

#
# IPMI
#
# CONFIG_IPMI_HANDLER is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_NVRAM is not set
CONFIG_RTC=y
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_SONYPI is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
CONFIG_AGP=y
# CONFIG_AGP_ALI is not set
# CONFIG_AGP_ATI is not set
# CONFIG_AGP_AMD is not set
# CONFIG_AGP_AMD64 is not set
CONFIG_AGP_INTEL=y
# CONFIG_AGP_INTEL_MCH is not set
# CONFIG_AGP_NVIDIA is not set
# CONFIG_AGP_SIS is not set
# CONFIG_AGP_SWORKS is not set
# CONFIG_AGP_VIA is not set
# CONFIG_AGP_EFFICEON is not set
# CONFIG_DRM is not set

#
# PCMCIA character devices
#
# CONFIG_SYNCLINK_CS is not set
# CONFIG_MWAVE is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_HPET is not set
# CONFIG_HANGCHECK_TIMER is not set

#
# I2C support
#
CONFIG_I2C=m
# CONFIG_I2C_CHARDEV is not set

#
# I2C Algorithms
#
CONFIG_I2C_ALGOBIT=m
# CONFIG_I2C_ALGOPCF is not set
# CONFIG_I2C_ALGOPCA is not set

#
# I2C Hardware Bus support
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_ELEKTOR is not set
# CONFIG_I2C_I801 is not set
# CONFIG_I2C_I810 is not set
# CONFIG_I2C_ISA is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_PARPORT is not set
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_PROSAVAGE is not set
# CONFIG_I2C_SAVAGE4 is not set
# CONFIG_SCx200_ACB is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_STUB is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set
# CONFIG_I2C_VOODOO3 is not set
# CONFIG_I2C_PCA_ISA is not set

#
# Hardware Sensors Chip support
#
# CONFIG_I2C_SENSOR is not set
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ASB100 is not set
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_FSCHER is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83627HF is not set

#
# Other I2C Chip support
#
# CONFIG_SENSORS_EEPROM is not set
# CONFIG_SENSORS_PCF8574 is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_SENSORS_RTC8564 is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_I2C_DEBUG_CHIP is not set

#
# Dallas's 1-wire bus
#
# CONFIG_W1 is not set

#
# Misc devices
#
# CONFIG_IBM_ASM is not set

#
# Multimedia devices
#
CONFIG_VIDEO_DEV=m

#
# Video For Linux
#

#
# Video Adapters
#
# CONFIG_VIDEO_BT848 is not set
# CONFIG_VIDEO_PMS is not set
# CONFIG_VIDEO_BWQCAM is not set
# CONFIG_VIDEO_CQCAM is not set
# CONFIG_VIDEO_W9966 is not set
# CONFIG_VIDEO_CPIA is not set
# CONFIG_VIDEO_SAA5246A is not set
# CONFIG_VIDEO_SAA5249 is not set
# CONFIG_TUNER_3036 is not set
# CONFIG_VIDEO_STRADIS is not set
# CONFIG_VIDEO_ZORAN is not set
# CONFIG_VIDEO_ZR36120 is not set
# CONFIG_VIDEO_SAA7134 is not set
# CONFIG_VIDEO_MXB is not set
# CONFIG_VIDEO_DPC is not set
# CONFIG_VIDEO_HEXIUM_ORION is not set
# CONFIG_VIDEO_HEXIUM_GEMINI is not set
# CONFIG_VIDEO_CX88 is not set
# CONFIG_VIDEO_OVCAMCHIP is not set

#
# Radio Adapters
#
# CONFIG_RADIO_CADET is not set
# CONFIG_RADIO_RTRACK is not set
# CONFIG_RADIO_RTRACK2 is not set
# CONFIG_RADIO_AZTECH is not set
# CONFIG_RADIO_GEMTEK is not set
# CONFIG_RADIO_GEMTEK_PCI is not set
# CONFIG_RADIO_MAXIRADIO is not set
# CONFIG_RADIO_MAESTRO is not set
# CONFIG_RADIO_SF16FMI is not set
# CONFIG_RADIO_SF16FMR2 is not set
# CONFIG_RADIO_TERRATEC is not set
# CONFIG_RADIO_TRUST is not set
# CONFIG_RADIO_TYPHOON is not set
# CONFIG_RADIO_ZOLTRIX is not set

#
# Digital Video Broadcasting Devices
#
# CONFIG_DVB is not set

#
# Graphics support
#
CONFIG_FB=y
CONFIG_FB_MODE_HELPERS=y
# CONFIG_FB_TILEBLITTING is not set
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_VGA16 is not set
CONFIG_FB_VESA=y
CONFIG_VIDEO_SELECT=y
# CONFIG_FB_HGA is not set
CONFIG_FB_RIVA=m
CONFIG_FB_RIVA_I2C=y
# CONFIG_FB_RIVA_DEBUG is not set
# CONFIG_FB_I810 is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON_OLD is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_VIRTUAL is not set

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
# CONFIG_MDA_CONSOLE is not set
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FONTS=y
# CONFIG_FONT_8x8 is not set
# CONFIG_FONT_8x16 is not set
CONFIG_FONT_6x11=y
# CONFIG_FONT_PEARL_8x8 is not set
# CONFIG_FONT_ACORN_8x8 is not set
# CONFIG_FONT_MINI_4x6 is not set
# CONFIG_FONT_SUN8x16 is not set
# CONFIG_FONT_SUN12x22 is not set

#
# Logo configuration
#
# CONFIG_LOGO is not set

#
# Sound
#
CONFIG_SOUND=y

#
# Advanced Linux Sound Architecture
#
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_SEQUENCER=m
# CONFIG_SND_SEQ_DUMMY is not set
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_RTCTIMER=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set

#
# Generic devices
#
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set

#
# ISA devices
#
# CONFIG_SND_AD1848 is not set
# CONFIG_SND_CS4231 is not set
# CONFIG_SND_CS4232 is not set
# CONFIG_SND_CS4236 is not set
# CONFIG_SND_ES1688 is not set
# CONFIG_SND_ES18XX is not set
# CONFIG_SND_GUSCLASSIC is not set
# CONFIG_SND_GUSEXTREME is not set
# CONFIG_SND_GUSMAX is not set
# CONFIG_SND_INTERWAVE is not set
# CONFIG_SND_INTERWAVE_STB is not set
# CONFIG_SND_OPTI92X_AD1848 is not set
# CONFIG_SND_OPTI92X_CS4231 is not set
# CONFIG_SND_OPTI93X is not set
# CONFIG_SND_SB8 is not set
# CONFIG_SND_SB16 is not set
# CONFIG_SND_SBAWE is not set
# CONFIG_SND_WAVEFRONT is not set
# CONFIG_SND_CMI8330 is not set
# CONFIG_SND_OPL3SA2 is not set
# CONFIG_SND_SGALAXY is not set
# CONFIG_SND_SSCAPE is not set

#
# PCI devices
#
CONFIG_SND_AC97_CODEC=y
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_YMFPCI is not set
# CONFIG_SND_ALS4000 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
CONFIG_SND_INTEL8X0=y
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VX222 is not set

#
# USB devices
#
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_USX2Y is not set

#
# PCMCIA devices
#
# CONFIG_SND_VXPOCKET is not set
# CONFIG_SND_VXP440 is not set
# CONFIG_SND_PDAUDIOCF is not set

#
# Open Sound System
#
# CONFIG_SOUND_PRIME is not set

#
# USB support
#
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
CONFIG_USB_BANDWIDTH=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_SUSPEND is not set
# CONFIG_USB_OTG is not set

#
# USB Host Controller Drivers
#
CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_SPLIT_ISO is not set
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_OHCI_HCD is not set
CONFIG_USB_UHCI_HCD=y

#
# USB Device Class drivers
#
# CONFIG_USB_AUDIO is not set
# CONFIG_USB_BLUETOOTH_TTY is not set
# CONFIG_USB_MIDI is not set
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_RW_DETECT is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_DPCM is not set
# CONFIG_USB_STORAGE_HP8200e is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set

#
# USB Human Interface Devices (HID)
#
CONFIG_USB_HID=y
CONFIG_USB_HIDINPUT=y
# CONFIG_HID_FF is not set
# CONFIG_USB_HIDDEV is not set
# CONFIG_USB_AIPTEK is not set
# CONFIG_USB_WACOM is not set
# CONFIG_USB_KBTAB is not set
# CONFIG_USB_POWERMATE is not set
# CONFIG_USB_MTOUCH is not set
# CONFIG_USB_EGALAX is not set
# CONFIG_USB_XPAD is not set
# CONFIG_USB_ATI_REMOTE is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USB_HPUSBSCSI is not set

#
# USB Multimedia devices
#
# CONFIG_USB_DABUSB is not set
# CONFIG_USB_VICAM is not set
# CONFIG_USB_DSBR is not set
# CONFIG_USB_IBMCAM is not set
# CONFIG_USB_KONICAWC is not set
# CONFIG_USB_OV511 is not set
# CONFIG_USB_SE401 is not set
# CONFIG_USB_SN9C102 is not set
# CONFIG_USB_STV680 is not set

#
# USB Network adaptors
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set

#
# USB Serial Converter support
#
CONFIG_USB_SERIAL=m
CONFIG_USB_SERIAL_GENERIC=y
# CONFIG_USB_SERIAL_BELKIN is not set
# CONFIG_USB_SERIAL_WHITEHEAT is not set
# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set
# CONFIG_USB_SERIAL_EMPEG is not set
# CONFIG_USB_SERIAL_FTDI_SIO is not set
CONFIG_USB_SERIAL_VISOR=m
# CONFIG_USB_SERIAL_IPAQ is not set
# CONFIG_USB_SERIAL_IR is not set
# CONFIG_USB_SERIAL_EDGEPORT is not set
# CONFIG_USB_SERIAL_EDGEPORT_TI is not set
# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set
# CONFIG_USB_SERIAL_KEYSPAN is not set
# CONFIG_USB_SERIAL_KLSI is not set
# CONFIG_USB_SERIAL_KOBIL_SCT is not set
# CONFIG_USB_SERIAL_MCT_U232 is not set
CONFIG_USB_SERIAL_PL2303=m
# CONFIG_USB_SERIAL_SAFE is not set
# CONFIG_USB_SERIAL_CYBERJACK is not set
# CONFIG_USB_SERIAL_XIRCOM is not set
# CONFIG_USB_SERIAL_OMNINET is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_TIGL is not set
# CONFIG_USB_AUERSWALD is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_PHIDGETSERVO is not set
# CONFIG_USB_TEST is not set

#
# USB ATM/DSL drivers
#

#
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set

#
# File systems
#
CONFIG_EXT2_FS=m
# CONFIG_EXT2_FS_XATTR is not set
CONFIG_EXT3_FS=m
CONFIG_EXT3_FS_XATTR=y
# CONFIG_EXT3_FS_POSIX_ACL is not set
# CONFIG_EXT3_FS_SECURITY is not set
CONFIG_JBD=m
# CONFIG_JBD_DEBUG is not set
CONFIG_FS_MBCACHE=m
CONFIG_REISERFS_FS=m
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_REISERFS_FS_XATTR is not set
# CONFIG_JFS_FS is not set
CONFIG_XFS_FS=y
# CONFIG_XFS_RT is not set
# CONFIG_XFS_QUOTA is not set
# CONFIG_XFS_SECURITY is not set
# CONFIG_XFS_POSIX_ACL is not set
# CONFIG_MINIX_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
CONFIG_AUTOFS4_FS=y

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_ZISOFS_FS=y
CONFIG_UDF_FS=y
CONFIG_UDF_NLS=y

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
CONFIG_NTFS_FS=m
# CONFIG_NTFS_DEBUG is not set
CONFIG_NTFS_RW=y

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_SYSFS=y
CONFIG_DEVFS_FS=y
CONFIG_DEVFS_MOUNT=y
# CONFIG_DEVFS_DEBUG is not set
# CONFIG_DEVPTS_FS_XATTR is not set
CONFIG_TMPFS=y
# CONFIG_TMPFS_XATTR is not set
# CONFIG_HUGETLBFS is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_RAMFS=y

#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set

#
# Network File Systems
#
CONFIG_NFS_FS=m
# CONFIG_NFS_V3 is not set
# CONFIG_NFS_V4 is not set
# CONFIG_NFS_DIRECTIO is not set
CONFIG_NFSD=m
# CONFIG_NFSD_V3 is not set
# CONFIG_NFSD_TCP is not set
CONFIG_LOCKD=m
CONFIG_EXPORTFS=m
CONFIG_SUNRPC=m
# CONFIG_RPCSEC_GSS_KRB5 is not set
# CONFIG_RPCSEC_GSS_SPKM3 is not set
CONFIG_SMB_FS=m
# CONFIG_SMB_NLS_DEFAULT is not set
CONFIG_CIFS=m
# CONFIG_CIFS_STATS is not set
# CONFIG_CIFS_XATTR is not set
# CONFIG_CIFS_POSIX is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y

#
# Native Language Support
#
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ASCII is not set
CONFIG_NLS_ISO8859_1=y
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
CONFIG_NLS_UTF8=y

#
# Profiling support
#
# CONFIG_PROFILING is not set

#
# Kernel hacking
#
CONFIG_DEBUG_KERNEL=y
CONFIG_MAGIC_SYSRQ=y
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_PREEMPT is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_PREEMPT_TIMING is not set
# CONFIG_RWSEM_DEADLOCK_DETECT is not set
# CONFIG_DEBUG_INFO is not set
# CONFIG_FRAME_POINTER is not set
CONFIG_EARLY_PRINTK=y
# CONFIG_DEBUG_STACKOVERFLOW is not set
# CONFIG_KPROBES is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_PAGEALLOC is not set
CONFIG_4KSTACKS=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_KGDB is not set

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set

#
# Cryptographic options
#
CONFIG_CRYPTO=y
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=m
CONFIG_CRYPTO_SHA1=m
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_WP512 is not set
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_TWOFISH is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_AES_586 is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_KHAZAD is not set
CONFIG_CRYPTO_DEFLATE=m
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_TEST is not set

#
# Library routines
#
CONFIG_CRC_CCITT=m
CONFIG_CRC32=m
# CONFIG_LIBCRC32C is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m
CONFIG_GENERIC_HARDIRQS=y
CONFIG_X86_BIOS_REBOOT=y
CONFIG_PC=y

With all these proc values, what do you recommend they should be set to?

just the default values - same for the .config options. Once the feature gets more stable the latency measurements can begin again - for them the /proc values are important.

Ingo

EXT3 FS on hda5, internal journal
(mount/71/CPU#0): new 493 us maximum-latency critical section.
=> started at timestamp 29143938: <kernel_fpu_begin+0x21/0x60>
=> ended at timestamp 29144431: <_mmx_memcpy+0x131/0x180>

 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c01321ff>] check_preempt_timing+0x1af/0x250
 [<c01dcf51>] _mmx_memcpy+0x131/0x180
 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c01dcf51>] _mmx_memcpy+0x131/0x180
 [<c01dcf51>] _mmx_memcpy+0x131/0x180
 [<c01e3625>] vgacon_scroll+0x245/0x260
 [<c01f3bba>] scrup+0xda/0xf0
 [<c0113104>] mcount+0x14/0x18
 [<c01f5702>] lf+0x72/0x80
 [<c01f7e9f>] vt_console_print+0x13f/0x320
 [<c011c231>] __call_console_drivers+0x61/0x70
 [<c011c35a>] call_console_drivers+0x9a/0x140
 [<c011c721>] release_console_sem+0x71/0x100
 [<c011c5f6>] vprintk+0x116/0x180
 [<c011c4dd>] printk+0x1d/0x20
 [<c01a0957>] ext3_setup_super+0x127/0x1b0
 [<c01db07f>] up_write+0x4f/0x80
 [<c01a2552>] ext3_remount+0x132/0x190
 [<c01dae41>] down_write+0x71/0xa0
 [<c0162903>] do_remount_sb+0xb3/0xe0
 [<c0179712>] do_remount+0x72/0xc0
 [<c017a073>] do_mount+0x1a3/0x1b0
 [<c01dae41>] down_write+0x71/0xa0
 [<c017a3ec>] sys_mount+0x9c/0x100
 [<c0106013>] syscall_call+0x7/0xb

preempt count: 00000002
. 2-level deep critical section nesting:
.. entry 1: kernel_fpu_begin+0x21/0x60 / (_mmx_memcpy+0x36/0x180) .. entry 2: print_traces+0x1d/0x70 / (dump_stack+0x23/0x30)

=> dump-end timestamp 29144924

The kernel is jsut getting ready to start init at this point(mounting root), so I don't know if you are really interested in this high latency trace, but I'm sending anyways.

However, after I reset the threshold to 50(and got a few small traces), I got this whopper.

(XFree86/1129/CPU#0): new 4692 us maximum-latency critical section.
=> started at timestamp 358506933: <call_console_drivers+0x76/0x140>
=> ended at timestamp 358511625: <finish_task_switch+0x43/0xa0>

 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c01321ff>] check_preempt_timing+0x1af/0x250
 [<c0117ca3>] finish_task_switch+0x43/0xa0
 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c0117ca3>] finish_task_switch+0x43/0xa0
 [<c0117ca3>] finish_task_switch+0x43/0xa0
 [<c02a2859>] __sched_text_start+0x2d9/0x570
 [<c02a3323>] schedule_timeout+0x63/0xc0
 [<c02a316e>] cond_resched+0xe/0x90
 [<c01253a0>] process_timeout+0x0/0x20
 [<c02a3185>] cond_resched+0x25/0x90
 [<c016f592>] do_select+0x172/0x280
 [<c016f280>] __pollwait+0x0/0xb0
 [<c016f984>] sys_select+0x294/0x570
 [<c0106013>] syscall_call+0x7/0xb

preempt count: 00000002
. 2-level deep critical section nesting:
.. entry 1: __sched_text_start+0x3b/0x570 / (schedule_timeout+0x63/0xc0) .. entry 2: print_traces+0x1d/0x70 / (dump_stack+0x23/0x30)

=> dump-end timestamp 358512077

ps: I've never mentioned the hardware I am running. Athlon XP 2000, 1G ram,
460G(usable) software raid5(3*250g ide)(plus boot 120G), LVM, extra SiliconImage UDMA133 controller(mobo can only do 100).

I'm not certain what kind of latencies to expect with this setup. I'm tending to ignore <100us, at least for now.

lets skip these for the time being, large runtime ones are the first ones to be squashed.

interesting - this could be a printk (trace) done in a critical section though. What does /proc/latency_trace tell, is it full of console code functions?

one of the best ways to avoid the console-printk-ing overhead is to do a 'dmesg -n 1' and reset the maximum back to 50. (i prefer to use the preempt_max_latency option not the preempt_thresh option.)

this setup shouldnt produce above-100 usec latencies with -U5 and PREEMPT_REALTIME.

Ingo

Too late, it's gone. It'd be nice if there was some way to have history on that file.

well - if it's gone it's always replaced by a larger latency (if you use the preempt_max_latency method), which in most cases is more interesting than the one you wanted to save.

Ingo

I reset the minimum to 50, and it's only gotten up to 83.

Ingo,

*** Warning: "__you_cannot_kmalloc_that_much" [drivers/scsi/aacraid/aacraid.ko] undefined!

This just appeared in U5. I was trying to track this one down just because I saw it, even though I don't need aacraid. I am having a hell of a time tracking down what changed that would cause this, but I figure you will know exactly what changed that would cause it. :)

kr

i suspect this is due to the size increase of semaphores if CONFIG_RWSEM_DEADLOCK_DETECT is enabled. Try lowering CONFIG_RWSEM_MAX_OWNERS from the default 64 to 32, does that help?

Ingo

Yes. That does help.

kr

CC arch/i386/kernel/traps.o
arch/i386/kernel/traps.c: In function `do_debug':
arch/i386/kernel/traps.c:786: error: `sysenter_past_esp' undeclared (first use in this function) arch/i386/kernel/traps.c:786: error: (Each undeclared identifier is reported only once arch/i386/kernel/traps.c:786: error: for each function it appears in.)
make[1]: *** [arch/i386/kernel/traps.o] Error 1
make: *** [arch/i386/kernel] Error 2

bill

i guess this might be an -mm1 breakage if CONFIG_KGDB enabled - does it happen with vanilla -mm1 too?

Ingo

yep, should I wait for -mm2 ?

bill

since 2.6.9's release is imminent there will unlikely be an -rc4-mm2, 2.6.9-mm1 should be the next one.

Ingo

The new kgdb logic is a bit foreign to me. I'll have to look at it a bit more, but this kgdb build problem is criticial for a certain part of the kernel community that needs it. I've commented out that section and rebuilding it now.

To get kgdb work (referencing my tree), I've just demoted all of the spinlocks in arch/i386/{kernel,lib}/kgdb*.c files. It's pretty straight forward, nothing tricky at all.

bill

bah, let me handle this, CONFIG_KGDB was turned on and I'm workin on this now...

bill

kernel BUG at lib/rwsem-generic.c:130!

Then, a BUG, sleeping while atomic.

------------[ cut here ]------------
kernel BUG at lib/rwsem-generic.c:130!
invalid operand: 0000 [#1]
PREEMPT 
Modules linked in: nfsd exportfs snd_cmipci snd_opl3_lib snd_hwdep snd_mpu401_uart snd_rawmidi snd_seq_device 8250 serial_core nfs lockd sunrpc raid5 xor md dm_mirror dm_mod aic7xxx sg sr_mod cdrom sd_mod scsi_mod snd_intel8x0 snd_ac97_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd snd_page_alloc soundcore 3c59x mii sis900 crc32 siimage
CPU:    0
EIP:    0060:[<c01da56b>]    Not tainted VLI
EFLAGS: 00010002   (2.6.9-rc4-mm1-rt-u5) 

EIP is at rwsem_owner_del+0x6b/0x90
eax: 00000001 ebx: f7b31658 ecx: 00000000 edx: 00000001
esi: 00000000 edi: f7b31658 ebp: d3113f34 esp: d3113f28
ds: 007b es: 007b ss: 0068 preempt: 00000002
Process liquidwar (pid: 6352, threadinfo=d3113000 task=d7ec6e60)

Stack: f7b31658 00000202 d3113fa8 d3113f48 c01db057 f7b31658 f741ac00 d74036c0 
       d3113f64 f88c1c18 d3113f64 c0113104 00000000 f88c1be0 d74036c0 d3113f90 
       c015b61b d74036c0 080d77f8 00000800 d3113fa8 f0d94164 f0d94164 d74036c0 
Call Trace:
 [<c01db057>] up_write+0x27/0x80
 [<f88c1c18>] snd_pcm_oss_write+0x38/0x70 [snd_pcm_oss]
 [<c0113104>] mcount+0x14/0x18
 [<f88c1be0>] snd_pcm_oss_write+0x0/0x70 [snd_pcm_oss]
 [<c015b61b>] vfs_write+0xcb/0x140
 [<c015b760>] sys_write+0x50/0x80
 [<c0106013>] syscall_call+0x7/0xb

preempt count: 00000003
. 3-level deep critical section nesting:
.. entry 1: up_write+0x70/0x80 / (snd_pcm_oss_write+0x38/0x70 [snd_pcm_oss]) .. entry 2: die+0x3f/0x1a0 / (do_invalid_op+0x106/0x110)
.. entry 3: print_traces+0x1d/0x70 / (show_stack+0x83/0xa0)

Code: 16 bb 00 f0 ff ff 21 e3 8b 44 8f 10 3b 03 74 28 41 89 d6 39 d1 7c f1 8b 15 b8 fe 2e c0 85 d2 74 12 c7 05 b8 fe 2e c0 00 00 00 00 <0f> 0b 82 00 e1 05 2c c0 5b 5e 5f c9 c3 8d 56 ff 39 d1 74 08 8b 
 <6>note: liquidwar[6352] exited with preempt_count 1
BUG: sleeping function called from invalid context liquidwar(6352) at kernel/fork.c:421
in_atomic():1 [00000001], irqs_disabled():0
 [<c0119582>] __might_sleep+0xc2/0xe0
 [<c0119bce>] mm_release+0x6e/0xd0
 [<c011c4dd>] printk+0x1d/0x20
 [<c011e6d3>] do_exit+0x83/0x4a0
 [<c01075f0>] do_invalid_op+0x0/0x110
 [<c0107242>] die+0x192/0x1a0
 [<c0116c5c>] fixup_exception+0x1c/0x40
 [<c01076f6>] do_invalid_op+0x106/0x110
 [<c01da56b>] rwsem_owner_del+0x6b/0x90
 [<c0113104>] mcount+0x14/0x18
 [<c01c6064>] inode_has_perm+0x64/0x90
 [<c013193d>] __mcount+0x1d/0x20
 [<c01c890e>] selinux_file_permission+0xe/0x170
 [<c015b5f3>] vfs_write+0xa3/0x140
 [<c0113104>] mcount+0x14/0x18
 [<c0106a25>] error_code+0x2d/0x38
 [<c01da56b>] rwsem_owner_del+0x6b/0x90
 [<c01db057>] up_write+0x27/0x80
 [<f88c1c18>] snd_pcm_oss_write+0x38/0x70 [snd_pcm_oss]
 [<c0113104>] mcount+0x14/0x18
 [<f88c1be0>] snd_pcm_oss_write+0x0/0x70 [snd_pcm_oss]
 [<c015b61b>] vfs_write+0xcb/0x140
 [<c015b760>] sys_write+0x50/0x80
 [<c0106013>] syscall_call+0x7/0xb

preempt count: 00000002
. 2-level deep critical section nesting:
.. entry 1: task_rq_lock+0x1e/0x30 / (try_to_wake_up+0x2d/0xc0) .. entry 2: print_traces+0x1d/0x70 / (dump_stack+0x23/0x30)

BUG: scheduling while atomic: liquidwar/0x04000001/6352
caller is cond_resched+0x62/0x90
 [<c02a2ab9>] __sched_text_start+0x539/0x570
 [<c02a31c2>] cond_resched+0x62/0x90
 [<c0113104>] mcount+0x14/0x18
 [<c02a31c2>] cond_resched+0x62/0x90
 [<c0119bd3>] mm_release+0x73/0xd0
 [<c011c4dd>] printk+0x1d/0x20
 [<c011e6d3>] do_exit+0x83/0x4a0
 [<c01075f0>] do_invalid_op+0x0/0x110
 [<c0107242>] die+0x192/0x1a0
 [<c0116c5c>] fixup_exception+0x1c/0x40
 [<c01076f6>] do_invalid_op+0x106/0x110
 [<c01da56b>] rwsem_owner_del+0x6b/0x90
 [<c0113104>] mcount+0x14/0x18
 [<c01c6064>] inode_has_perm+0x64/0x90
 [<c013193d>] __mcount+0x1d/0x20
 [<c01c890e>] selinux_file_permission+0xe/0x170
 [<c015b5f3>] vfs_write+0xa3/0x140
 [<c0113104>] mcount+0x14/0x18
 [<c0106a25>] error_code+0x2d/0x38
 [<c01da56b>] rwsem_owner_del+0x6b/0x90
 [<c01db057>] up_write+0x27/0x80
 [<f88c1c18>] snd_pcm_oss_write+0x38/0x70 [snd_pcm_oss]
 [<c0113104>] mcount+0x14/0x18
 [<f88c1be0>] snd_pcm_oss_write+0x0/0x70 [snd_pcm_oss]
 [<c015b61b>] vfs_write+0xcb/0x140
 [<c015b760>] sys_write+0x50/0x80
 [<c0106013>] syscall_call+0x7/0xb

preempt count: 04000002
. 2-level deep critical section nesting:
.. entry 1: __do_IRQ+0x111/0x190 / (do_IRQ+0x75/0xa0) .. entry 2: print_traces+0x1d/0x70 / (dump_stack+0x23/0x30)

BUG: scheduling while atomic: liquidwar/0x00000001/6352
caller is do_exit+0x292/0x4a0
 [<c02a2ab9>] __sched_text_start+0x539/0x570
 [<c011e8e2>] do_exit+0x292/0x4a0
 [<c0113104>] mcount+0x14/0x18
 [<c011e8e2>] do_exit+0x292/0x4a0
 [<c01075f0>] do_invalid_op+0x0/0x110
 [<c0107242>] die+0x192/0x1a0
 [<c0116c5c>] fixup_exception+0x1c/0x40
 [<c01076f6>] do_invalid_op+0x106/0x110
 [<c01da56b>] rwsem_owner_del+0x6b/0x90
 [<c0113104>] mcount+0x14/0x18
 [<c01c6064>] inode_has_perm+0x64/0x90
 [<c013193d>] __mcount+0x1d/0x20
 [<c01c890e>] selinux_file_permission+0xe/0x170
 [<c015b5f3>] vfs_write+0xa3/0x140
 [<c0113104>] mcount+0x14/0x18
 [<c0106a25>] error_code+0x2d/0x38
 [<c01da56b>] rwsem_owner_del+0x6b/0x90
 [<c01db057>] up_write+0x27/0x80
 [<f88c1c18>] snd_pcm_oss_write+0x38/0x70 [snd_pcm_oss]
 [<c0113104>] mcount+0x14/0x18
 [<f88c1be0>] snd_pcm_oss_write+0x0/0x70 [snd_pcm_oss]
 [<c015b61b>] vfs_write+0xcb/0x140
 [<c015b760>] sys_write+0x50/0x80
 [<c0106013>] syscall_call+0x7/0xb

preempt count: 00000002
. 2-level deep critical section nesting:
.. entry 1: __do_IRQ+0x111/0x190 / (do_IRQ+0x75/0xa0) .. entry 2: print_traces+0x1d/0x70 / (dump_stack+0x23/0x30)

ksymoops 2.4.9 on i686 2.6.9-rc4-mm1-rt-u5. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.6.9-rc4-mm1-rt-u5/ (default) -m /boot/System.map-2.6.9-rc4-mm1-rt-u5 (default)

Warning: You did not tell me where to find symbol information. I will assume that the log matches the kernel and modules that are running right now and I'll use the default options above for symbol resolution. If the current kernel and/or modules do not match the log, you can get more accurate output by telling me the kernel version and where to find map, modules, ksyms etc. ksymoops -h explains the options.

Error (regular_file): read_ksyms stat /proc/ksyms failed No modules in ksyms, skipping objects
No ksyms, skipping lsmod

 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c01dae41>] down_write+0x71/0xa0
 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c01db07f>] up_write+0x4f/0x80
 [<c01320ac>] check_preempt_timing+0x5c/0x250
 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c01db07f>] up_write+0x4f/0x80
 [<c013193d>] __mcount+0x1d/0x20
 [<c01da9be>] __up_write+0xe/0x1b0
 [<c01db05f>] up_write+0x2f/0x80
 [<c0113104>] mcount+0x14/0x18
 [<c016ea97>] sys_ioctl+0x47/0x230
 [<c0106013>] syscall_call+0x7/0xb
 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c01321ff>] check_preempt_timing+0x1af/0x250
 [<c01c4a02>] avc_has_perm_noaudit+0xe2/0x240
 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c01c4a02>] avc_has_perm_noaudit+0xe2/0x240
 [<c01c4a02>] avc_has_perm_noaudit+0xe2/0x240
 [<c01c4b74>] avc_has_perm+0x14/0xa0
 [<c01c6064>] inode_has_perm+0x64/0x90
 [<c0113104>] mcount+0x14/0x18
 [<c01c4ba3>] avc_has_perm+0x43/0xa0
 [<c01c8a33>] selinux_file_permission+0x133/0x170
 [<c0113104>] mcount+0x14/0x18
 [<c01c6064>] inode_has_perm+0x64/0x90
 [<c01db07f>] up_write+0x4f/0x80
 [<c013193d>] __mcount+0x1d/0x20
 [<c01c890e>] selinux_file_permission+0xe/0x170
 [<c015b3d6>] vfs_read+0xa6/0x140
 [<c0113104>] mcount+0x14/0x18
 [<c01c8a33>] selinux_file_permission+0x133/0x170
 [<c0113104>] mcount+0x14/0x18
 [<c015b3d6>] vfs_read+0xa6/0x140
 [<c015c604>] fget_light+0x14/0xa0
 [<c0113104>] mcount+0x14/0x18
 [<c015b6e0>] sys_read+0x50/0x80
 [<c0106013>] syscall_call+0x7/0xb
 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c01321ff>] check_preempt_timing+0x1af/0x250
 [<c01c4a02>] avc_has_perm_noaudit+0xe2/0x240
 [<c013193d>] __mcount+0x1d/0x20
 [<c01c499b>] avc_has_perm_noaudit+0x7b/0x240
 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c01c4a02>] avc_has_perm_noaudit+0xe2/0x240
 [<c01c4a02>] avc_has_perm_noaudit+0xe2/0x240
 [<c01320ac>] check_preempt_timing+0x5c/0x250
 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c01183ee>] __wake_up+0x5e/0x90
 [<c01c4b74>] avc_has_perm+0x14/0xa0
 [<c01c6064>] inode_has_perm+0x64/0x90
 [<c0113104>] mcount+0x14/0x18
 [<c01c4ba3>] avc_has_perm+0x43/0xa0
 [<c01c8a33>] selinux_file_permission+0x133/0x170
 [<c0113104>] mcount+0x14/0x18
 [<c01c6064>] inode_has_perm+0x64/0x90
 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c01db07f>] up_write+0x4f/0x80
 [<c01320ac>] check_preempt_timing+0x5c/0x250
 [<c013193d>] __mcount+0x1d/0x20
 [<c01c890e>] selinux_file_permission+0xe/0x170
 [<c015b5f3>] vfs_write+0xa3/0x140
 [<c0113104>] mcount+0x14/0x18
 [<c01c8a33>] selinux_file_permission+0x133/0x170
 [<c0113104>] mcount+0x14/0x18
 [<c015b5f3>] vfs_write+0xa3/0x140
 [<c015c604>] fget_light+0x14/0xa0
 [<c0113104>] mcount+0x14/0x18
 [<c015b760>] sys_write+0x50/0x80
 [<c0106013>] syscall_call+0x7/0xb
 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c01321ff>] check_preempt_timing+0x1af/0x250
 [<c01c4a02>] avc_has_perm_noaudit+0xe2/0x240
 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c01c4a02>] avc_has_perm_noaudit+0xe2/0x240
 [<c01c4a02>] avc_has_perm_noaudit+0xe2/0x240
 [<c01c4b74>] avc_has_perm+0x14/0xa0
 [<c01c6064>] inode_has_perm+0x64/0x90
 [<c0113104>] mcount+0x14/0x18
 [<c01c4ba3>] avc_has_perm+0x43/0xa0
 [<c01c8a33>] selinux_file_permission+0x133/0x170
 [<c0113104>] mcount+0x14/0x18
 [<c01c6064>] inode_has_perm+0x64/0x90
 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c01db07f>] up_write+0x4f/0x80
 [<c013193d>] __mcount+0x1d/0x20
 [<c013193d>] __mcount+0x1d/0x20
 [<c01c890e>] selinux_file_permission+0xe/0x170
 [<c015b5f3>] vfs_write+0xa3/0x140
 [<c0113104>] mcount+0x14/0x18
 [<c01c8a33>] selinux_file_permission+0x133/0x170
 [<c01320ac>] check_preempt_timing+0x5c/0x250
 [<c0113104>] mcount+0x14/0x18
 [<c015b5f3>] vfs_write+0xa3/0x140
 [<c015c67f>] fget_light+0x8f/0xa0
 [<c015b760>] sys_write+0x50/0x80
 [<c0106013>] syscall_call+0x7/0xb
 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c01321ff>] check_preempt_timing+0x1af/0x250
 [<c01c4a02>] avc_has_perm_noaudit+0xe2/0x240
 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c01c4a02>] avc_has_perm_noaudit+0xe2/0x240
 [<c01c4a02>] avc_has_perm_noaudit+0xe2/0x240
 [<c01c4b74>] avc_has_perm+0x14/0xa0
 [<c01c6064>] inode_has_perm+0x64/0x90
 [<c0113104>] mcount+0x14/0x18
 [<c01c4ba3>] avc_has_perm+0x43/0xa0
 [<c01c8a33>] selinux_file_permission+0x133/0x170
 [<c0113104>] mcount+0x14/0x18
 [<c01c6064>] inode_has_perm+0x64/0x90
 [<c013193d>] __mcount+0x1d/0x20
 [<c0176db9>] inode_times_differ+0x9/0x50
 [<c0176f6f>] inode_update_time+0x9f/0xe0
 [<c0113104>] mcount+0x14/0x18
 [<c013193d>] __mcount+0x1d/0x20
 [<c01c890e>] selinux_file_permission+0xe/0x170
 [<c015b3d6>] vfs_read+0xa6/0x140
 [<c0113104>] mcount+0x14/0x18
 [<c01c8a33>] selinux_file_permission+0x133/0x170
 [<c01320ac>] check_preempt_timing+0x5c/0x250
 [<c0113104>] mcount+0x14/0x18
 [<c015b3d6>] vfs_read+0xa6/0x140
 [<c015c67f>] fget_light+0x8f/0xa0
 [<c015b6e0>] sys_read+0x50/0x80
 [<c0106013>] syscall_call+0x7/0xb
 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c01321ff>] check_preempt_timing+0x1af/0x250
 [<c01c4a02>] avc_has_perm_noaudit+0xe2/0x240
 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c01c4a02>] avc_has_perm_noaudit+0xe2/0x240
 [<c01c4a02>] avc_has_perm_noaudit+0xe2/0x240
 [<c0132480>] sub_preempt_count+0x60/0x90
 [<c01dafff>] up_read+0x4f/0x80
 [<c01c4b74>] avc_has_perm+0x14/0xa0
 [<c01cabcf>] selinux_ip_postroute_last+0x1bf/0x2a0
 [<c0113104>] mcount+0x14/0x18
 [<c01c4ba3>] avc_has_perm+0x43/0xa0
 [<c01cabcf>] selinux_ip_postroute_last+0x1bf/0x2a0
 [<c0113104>] mcount+0x14/0x18
 [<c01cacea>] selinux_ipv4_postroute_last+0x3a/0x40
 [<c02636d0>] ip_finish_output2+0x0/0x1f0
 [<c024fe65>] nf_iterate+0x75/0xb0
 [<c02636d0>] ip_finish_output2+0x0/0x1f0
 [<c0250280>] nf_hook_slow+0x90/0x140
 [<c02636d0>] ip_finish_output2+0x0/0x1f0
 [<c02610e3>] ip_finish_output+0x223/0x230
 [<c02636d0>] ip_finish_output2+0x0/0x1f0
 [<c0261716>] ip_queue_xmit+0x3d6/0x540
 [<c01c4bd1>] avc_has_perm+0x71/0xa0
 [<c0113104>] mcount+0x14/0x18
 [<c01c4a02>] avc_has_perm_noaudit+0xe2/0x240
 [<c01c4a02>] avc_has_perm_noaudit+0xe2/0x240
 [<c01dafff>] up_read+0x4f/0x80
 [<c013193d>] __mcount+0x1d/0x20
 [<c027842e>] tcp_v4_send_check+0xe/0xf0
 [<c0272119>] tcp_transmit_skb+0x439/0x860
 [<c0113104>] mcount+0x14/0x18
 [<c027846f>] tcp_v4_send_check+0x4f/0xf0
 [<c02721c2>] tcp_transmit_skb+0x4e2/0x860
 [<c0113104>] mcount+0x14/0x18
 [<c0274d76>] tcp_send_ack+0xa6/0xf0
 [<c026fdf4>] __tcp_ack_snd_check+0x14/0xa0
 [<c0270427>] tcp_rcv_established+0x287/0x900
 [<c013193d>] __mcount+0x1d/0x20
 [<c027965d>] tcp_v4_do_rcv+0xd/0x120
 [<c0279e7b>] tcp_v4_rcv+0x70b/0x950
 [<c0113104>] mcount+0x14/0x18
 [<c0279765>] tcp_v4_do_rcv+0x115/0x120
 [<c0279e7b>] tcp_v4_rcv+0x70b/0x950
 [<c025db75>] ip_local_deliver+0xf5/0x250
 [<c025df31>] ip_rcv+0x261/0x4c0
 [<c01dae41>] down_write+0x71/0xa0
 [<c0245570>] netif_receive_skb+0x1b0/0x280
 [<c0130008>] nanosleep_wake_up+0x18/0x20
 [<c024564e>] process_backlog+0xe/0x150
 [<c024580f>] net_rx_action+0x7f/0x150
 [<c02456c8>] process_backlog+0x88/0x150
 [<c024580f>] net_rx_action+0x7f/0x150
 [<c0120f87>] ___do_softirq+0x87/0xd0
 [<c0121058>] _do_softirq+0x8/0x30
 [<c01213a4>] ksoftirqd+0x94/0xe0
 [<c0121070>] _do_softirq+0x20/0x30
 [<c01213a4>] ksoftirqd+0x94/0xe0
 [<c013072a>] kthread+0xaa/0xb0
 [<c0121310>] ksoftirqd+0x0/0xe0
 [<c0130680>] kthread+0x0/0xb0
 [<c0104099>] kernel_thread_helper+0x5/0xc
kernel BUG at lib/rwsem-generic.c:130!
invalid operand: 0000 [#1]
CPU:    0
EIP:    0060:[<c01da56b>]    Not tainted VLI

Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010002 (2.6.9-rc4-mm1-rt-u5)
eax: 00000001 ebx: f7b31658 ecx: 00000000 edx: 00000001
esi: 00000000 edi: f7b31658 ebp: d3113f34 esp: d3113f28
ds: 007b es: 007b ss: 0068 preempt: 00000002

Stack: f7b31658 00000202 d3113fa8 d3113f48 c01db057 f7b31658 f741ac00 d74036c0 
       d3113f64 f88c1c18 d3113f64 c0113104 00000000 f88c1be0 d74036c0 d3113f90 
       c015b61b d74036c0 080d77f8 00000800 d3113fa8 f0d94164 f0d94164 d74036c0 
Call Trace:
 [<c01db057>] up_write+0x27/0x80
 [<f88c1c18>] snd_pcm_oss_write+0x38/0x70 [snd_pcm_oss]
 [<c0113104>] mcount+0x14/0x18
 [<f88c1be0>] snd_pcm_oss_write+0x0/0x70 [snd_pcm_oss]
 [<c015b61b>] vfs_write+0xcb/0x140
 [<c015b760>] sys_write+0x50/0x80
 [<c0106013>] syscall_call+0x7/0xb

Warning (Oops_read): Code line not seen, dumping what data is available

Trace; c01db057 <up_write+27/80>
Trace; f88c1c18 <pg0+384c5c18/3fc02400>
Trace; c0113104 <mcount+14/18>
Trace; f88c1be0 <pg0+384c5be0/3fc02400>
Trace; c015b61b <vfs_write+cb/140>
Trace; c015b760 <sys_write+50/80>
Trace; c0106013 <syscall_call+7/b>

Code: 16 bb 00 f0 ff ff 21 e3 8b 44 8f 10 3b 03 74 28 41 89 d6 39 d1 7c f1 8b 15 b8 fe 2e c0 85 d2 74 12 c7 05 b8 fe 2e c0 00 00 00 00 <0f> 0b 82 00 e1 05 2c c0 5b 5e 5f c9 c3 8d 56 ff 39 d1 74 08 8b 

This architecture has variable length instructions, decoding before eip is unreliable, take these instructions with a pinch of salt.

Code; c01da540 <rwsem_owner_del+40/90>
00000000 <_EIP>:
Code; c01da540 <rwsem_owner_del+40/90>
0: 16 push %ss
Code; c01da541 <rwsem_owner_del+41/90>
1: bb 00 f0 ff ff mov $0xfffff000,%ebx
Code; c01da546 <rwsem_owner_del+46/90>
6: 21 e3 and %esp,%ebx
Code; c01da548 <rwsem_owner_del+48/90>
8: 8b 44 8f 10 mov 0x10(%edi,%ecx,4),%eax
Code; c01da54c <rwsem_owner_del+4c/90>
c: 3b 03 cmp (%ebx),%eax
Code; c01da54e <rwsem_owner_del+4e/90>
e: 74 28 je 38 <_EIP+0x38>
Code; c01da550 <rwsem_owner_del+50/90>
10: 41 inc %ecx
Code; c01da551 <rwsem_owner_del+51/90>
11: 89 d6 mov %edx,%esi
Code; c01da553 <rwsem_owner_del+53/90>
13: 39 d1 cmp %edx,%ecx
Code; c01da555 <rwsem_owner_del+55/90>
15: 7c f1 jl 8 <_EIP+0x8>
Code; c01da557 <rwsem_owner_del+57/90>
17: 8b 15 b8 fe 2e c0 mov 0xc02efeb8,%edx
Code; c01da55d <rwsem_owner_del+5d/90>
1d: 85 d2 test %edx,%edx
Code; c01da55f <rwsem_owner_del+5f/90>
1f: 74 12 je 33 <_EIP+0x33>
Code; c01da561 <rwsem_owner_del+61/90>
21: c7 05 b8 fe 2e c0 00 movl $0x0,0xc02efeb8
Code; c01da568 <rwsem_owner_del+68/90>
28: 00 00 00

This decode from eip onwards should be reliable

Code; c01da56b <rwsem_owner_del+6b/90>
00000000 <_EIP>:
Code; c01da56b <rwsem_owner_del+6b/90>
0: 0f 0b ud2a
Code; c01da56d <rwsem_owner_del+6d/90>
2: 82 (bad)
Code; c01da56e <rwsem_owner_del+6e/90>
3: 00 e1 add %ah,%cl
Code; c01da570 <rwsem_owner_del+70/90>
5: 05 2c c0 5b 5e add $0x5e5bc02c,%eax
Code; c01da575 <rwsem_owner_del+75/90>
a: 5f pop %edi
Code; c01da576 <rwsem_owner_del+76/90>
b: c9 leave
Code; c01da577 <rwsem_owner_del+77/90>
c: c3 ret
Code; c01da578 <rwsem_owner_del+78/90>
d: 8d 56 ff lea 0xffffffff(%esi),%edx
Code; c01da57b <rwsem_owner_del+7b/90>
10: 39 d1 cmp %edx,%ecx
Code; c01da57d <rwsem_owner_del+7d/90>
12: 74 08 je 1c <_EIP+0x1c>
Code; c01da57f <rwsem_owner_del+7f/90>
14: 8b .byte 0x8b

 [<c0119582>] __might_sleep+0xc2/0xe0
 [<c0119bce>] mm_release+0x6e/0xd0
 [<c011c4dd>] printk+0x1d/0x20
 [<c011e6d3>] do_exit+0x83/0x4a0
 [<c01075f0>] do_invalid_op+0x0/0x110
 [<c0107242>] die+0x192/0x1a0
 [<c0116c5c>] fixup_exception+0x1c/0x40
 [<c01076f6>] do_invalid_op+0x106/0x110
 [<c01da56b>] rwsem_owner_del+0x6b/0x90
 [<c0113104>] mcount+0x14/0x18
 [<c01c6064>] inode_has_perm+0x64/0x90
 [<c013193d>] __mcount+0x1d/0x20
 [<c01c890e>] selinux_file_permission+0xe/0x170
 [<c015b5f3>] vfs_write+0xa3/0x140
 [<c0113104>] mcount+0x14/0x18
 [<c0106a25>] error_code+0x2d/0x38
 [<c01da56b>] rwsem_owner_del+0x6b/0x90
 [<c01db057>] up_write+0x27/0x80
 [<f88c1c18>] snd_pcm_oss_write+0x38/0x70 [snd_pcm_oss]
 [<c0113104>] mcount+0x14/0x18
 [<f88c1be0>] snd_pcm_oss_write+0x0/0x70 [snd_pcm_oss]
 [<c015b61b>] vfs_write+0xcb/0x140
 [<c015b760>] sys_write+0x50/0x80
 [<c0106013>] syscall_call+0x7/0xb
 [<c02a2ab9>] __sched_text_start+0x539/0x570
 [<c02a31c2>] cond_resched+0x62/0x90
 [<c0113104>] mcount+0x14/0x18
 [<c02a31c2>] cond_resched+0x62/0x90
 [<c0119bd3>] mm_release+0x73/0xd0
 [<c011c4dd>] printk+0x1d/0x20
 [<c011e6d3>] do_exit+0x83/0x4a0
 [<c01075f0>] do_invalid_op+0x0/0x110
 [<c0107242>] die+0x192/0x1a0
 [<c0116c5c>] fixup_exception+0x1c/0x40
 [<c01076f6>] do_invalid_op+0x106/0x110
 [<c01da56b>] rwsem_owner_del+0x6b/0x90
 [<c0113104>] mcount+0x14/0x18
 [<c01c6064>] inode_has_perm+0x64/0x90
 [<c013193d>] __mcount+0x1d/0x20
 [<c01c890e>] selinux_file_permission+0xe/0x170
 [<c015b5f3>] vfs_write+0xa3/0x140
 [<c0113104>] mcount+0x14/0x18
 [<c0106a25>] error_code+0x2d/0x38
 [<c01da56b>] rwsem_owner_del+0x6b/0x90
 [<c01db057>] up_write+0x27/0x80
 [<f88c1c18>] snd_pcm_oss_write+0x38/0x70 [snd_pcm_oss]
 [<c0113104>] mcount+0x14/0x18
 [<f88c1be0>] snd_pcm_oss_write+0x0/0x70 [snd_pcm_oss]
 [<c015b61b>] vfs_write+0xcb/0x140
 [<c015b760>] sys_write+0x50/0x80
 [<c0106013>] syscall_call+0x7/0xb
 [<c02a2ab9>] __sched_text_start+0x539/0x570
 [<c011e8e2>] do_exit+0x292/0x4a0
 [<c0113104>] mcount+0x14/0x18
 [<c011e8e2>] do_exit+0x292/0x4a0
 [<c01075f0>] do_invalid_op+0x0/0x110
 [<c0107242>] die+0x192/0x1a0
 [<c0116c5c>] fixup_exception+0x1c/0x40
 [<c01076f6>] do_invalid_op+0x106/0x110
 [<c01da56b>] rwsem_owner_del+0x6b/0x90
 [<c0113104>] mcount+0x14/0x18
 [<c01c6064>] inode_has_perm+0x64/0x90
 [<c013193d>] __mcount+0x1d/0x20
 [<c01c890e>] selinux_file_permission+0xe/0x170
 [<c015b5f3>] vfs_write+0xa3/0x140
 [<c0113104>] mcount+0x14/0x18
 [<c0106a25>] error_code+0x2d/0x38
 [<c01da56b>] rwsem_owner_del+0x6b/0x90
 [<c01db057>] up_write+0x27/0x80
 [<f88c1c18>] snd_pcm_oss_write+0x38/0x70 [snd_pcm_oss]
 [<c0113104>] mcount+0x14/0x18
 [<f88c1be0>] snd_pcm_oss_write+0x0/0x70 [snd_pcm_oss]
 [<c015b61b>] vfs_write+0xcb/0x140
 [<c015b760>] sys_write+0x50/0x80
 [<c0106013>] syscall_call+0x7/0xb

2 warnings and 1 error issued. Results may not be reliable.

starting nfsd triggers the deadlock detection, but it's not really a deadlock.

The first nfsd thread acquires nlmsvc_sema. The other 7 nfsd threads wait on it. The first thread creates lockd and tries to get lockd_start, which is initialized locked and will be released when the lockd thread starts. The deadlock complains about a deadlock on nlmsvc_sema inside of down(&lockd_start). ?

Converting lockd_start to a waitqueue solves the problem and is more sane, than the locked mutex.

tglx

--- 2.6.9-rc4-mm1-RT-U5/fs/lockd/svc.c.orig 2004-10-19
10:02:17.000000000 +0200
+++ 2.6.9-rc4-mm1-RT-U5/fs/lockd/svc.c 2004-10-19 09:54:22.000000000 +0200
@@ -46,7 +46,7 @@
int nlmsvc_grace_period;
unsigned long nlmsvc_timeout;

-static DECLARE_MUTEX(lockd_start);
+static DECLARE_WAIT_QUEUE_HEAD(lockd_start);
static DECLARE_WAIT_QUEUE_HEAD(lockd_exit);

/*
@@ -109,7 +109,7 @@

         * Let our maker know we're running.
         */
        nlmsvc_pid = current->pid;

- up(&lockd_start);
+ wake_up(&lockd_start);

        daemonize("lockd");

@@ -230,6 +230,7 @@

                printk(KERN_WARNING
                        "lockd_up: no pid, %d users??\n", nlmsvc_users);

+

        error = -ENOMEM;
        serv = svc_create(&nlmsvc_program, LOCKD_BUFSIZE);
        if (!serv) {
@@ -258,7 +259,19 @@
                        "lockd_up: create thread failed, error=%d\n",
error);
                goto destroy_and_out;
        }
-       down(&lockd_start);
+       /*
+        * Wait for the lockd process to start, but since we're holding
+        * the lockd semaphore, we can't wait around forever ...
+        */
+       clear_thread_flag(TIF_SIGPENDING);
+       interruptible_sleep_on_timeout(&lockd_start, HZ);
+       if (!nlmsvc_pid) {
+               printk(KERN_WARNING
+                       "lockd_down: lockd failed to start\n");
+       }
+       spin_lock_irq(&current->sighand->siglock);
+       recalc_sigpending();
+       spin_unlock_irq(&current->sighand->siglock);

/*
* Note: svc_serv structures have an initial use count of 1,
@@ -423,7 +436,6 @@

static int __init init_nlm(void)
{

-       init_MUTEX_LOCKED(&lockd_start);
        nlm_sysctl_table = register_sysctl_table(nlm_sysctl_root, 0);
        return nlm_sysctl_table ? 0 : -ENOMEM;

}

Installing knfsd (copyright (C) 1996 [email protected]).
mountdBUG: semaphore deadlock detected!
.. task nfsd/1246 is holding c89f4560.
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

       00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
       00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
Call Trace:
 [<c0117fc7>] copy_process+0x5f7/0xc30
 [<c01c4e62>] __delay+0x12/0x20
 [<c01fe460>] serial8250_console_write+0x170/0x280
 [<c011930e>] __call_console_drivers+0x5e/0x60
 [<c011982a>] release_console_sem+0xda/0xe0
 [<c01196a7>] vprintk+0x107/0x160
 [<c01196a7>] vprintk+0x107/0x160
 [<c012a3ae>] __kernel_text_address+0x2e/0x40
 [<c0106bf5>] show_trace+0x35/0x90
 [<c0106bf5>] show_trace+0x35/0x90
 [<c0106cd0>] show_stack+0x80/0xa0
 [<c01c2976>] __rwsem_deadlock+0x136/0x180
 [<c01c28aa>] __rwsem_deadlock+0x6a/0x180
 [<c02c3c33>] __down_write+0x93/0x170
 [<c01c3033>] down_write+0x43/0x80
 [<c89e661d>] lockd_up+0x9d/0x120 [lockd]
 [<c89e62e0>] lockd+0x0/0x2a0 [lockd]
 [<c883d2e1>] nfsd+0x91/0x380 [nfsd]
 [<c0105e12>] ret_from_fork+0x6/0x14
 [<c883d250>] nfsd+0x0/0x380 [nfsd]
 [<c0103ffd>] kernel_thread_helper+0x5/0x18
...#0 task nfsd/1246 is holding c89f4560.
BUG: semaphore deadlock: nfsd/1252 is blocked on c89f4560, deadlocking
nfsd/1246
c733df60 00000046 c7adad10 c03d6060 00000000 00000000 00000000 00000000
       00000000 00000000 c7a306f0 00005b6e 39133ac7 0000001a c7adae6c
c7adad10
       c7adad10 c7584400 00000000 c02c3cad c89f4560 c6853f6c c6819f6c
c7adad10
Call Trace:
 [<c02c3cad>] __down_write+0x10d/0x170
 [<c01c3033>] down_write+0x43/0x80
 [<c89e6591>] lockd_up+0x11/0x120 [lockd]
 [<c883d250>] nfsd+0x0/0x380 [nfsd]
 [<c883d2e1>] nfsd+0x91/0x380 [nfsd]
 [<c0105e12>] ret_from_fork+0x6/0x14
 [<c883d250>] nfsd+0x0/0x380 [nfsd]
 [<c0103ffd>] kernel_thread_helper+0x5/0x18
------------[ cut here ]------------

All sleep_on variants trigger the irqs_disabled() check in schedule(). tglx

ah, forgot that the waitqueue lock is a raw lock. Is there _any_ scenario where sleep_on() is actually correct kernel code?

Ingo

Hmm, the sleep_on() variants are used quite a lot over the kernel. Whats wrong with them and to what should they be converted ?

tglx

they are racy on SMP. It does:

	current->state = TASK_INTERRUPTIBLE;

	schedule();

which is almost always a bug to go to sleep via sleep_on() _after_ checking for the condition, because the following could happen:

	CPU1				CPU2

	if (condition)
		goto done;

					wake_up(&waitqueue);

	current->state = TASK_INTERRUPTIBLE;

	schedule();

The proper interface is wait_event() (and variants).

your patch probably only works due to timing - the wakeup always happens after sleep_on() has been called.

this particular NFS case is probably only correct due to userspace behavior. The code is apparently relying on the wake_up() never happening _before_ we do the sleep_on().

so, could you try the init_MUTEX_LOCKED() fix plus the patch below - does that turn off the deadlock assert? (Plus also uncomment the RWSEM_BUG() around line 130.)

Ingo

@@ -750,6 +750,15 @@ void fastcall sema_init(struct semaphore
 	case 0:
 		init_rwsem(&sem->lock);
 		down(sem);
+#ifdef CONFIG_RWSEM_DEADLOCK_DETECT
+		{
+			unsigned long flags;
+
+			rwsem_lock_irqsave(&rwsem_lock, flags);
+			rwsem_owner_del(&sem->lock);
+			rwsem_unlock_irqrestore(&rwsem_lock, flags);
+		}
+#endif
 		break;
 	default:
 		RWSEM_BUG();

but i agree with you that this semaphore (ab-)use in the NFS code should be fixed. Best would be to use a completion, but unfortunately there's no wait_for_completion_timeout() API right now.

Ingo

Sorry for beeing stupid. I remebered the wait_event stuff immidiately after hitting send (:

Correct fix appended. I think it's more sane than the locked mutex, as we actually come back if lockd is not started for any reason.

Yep, that fixes the problem

tglx

--- 2.6.9-rc4-mm1-RT-U5/fs/lockd/svc.c.orig 2004-10-19 10:02:17.000000000 +0200
+++ 2.6.9-rc4-mm1-RT-U5/fs/lockd/svc.c 2004-10-19 11:34:12.000000000
+0200
@@ -46,7 +46,7 @@
int nlmsvc_grace_period;
unsigned long nlmsvc_timeout;

-static DECLARE_MUTEX(lockd_start);
+static DECLARE_WAIT_QUEUE_HEAD(lockd_start);
static DECLARE_WAIT_QUEUE_HEAD(lockd_exit);

/*
@@ -109,7 +109,7 @@

         * Let our maker know we're running.
         */
        nlmsvc_pid = current->pid;

- up(&lockd_start);
+ wake_up(&lockd_start);

        daemonize("lockd");

@@ -230,6 +230,7 @@

                printk(KERN_WARNING
                        "lockd_up: no pid, %d users??\n", nlmsvc_users);

+

        error = -ENOMEM;
        serv = svc_create(&nlmsvc_program, LOCKD_BUFSIZE);
        if (!serv) {
@@ -258,8 +259,15 @@
                        "lockd_up: create thread failed, error=%d\n",
error);
                goto destroy_and_out;
        }
-       down(&lockd_start);
-
+       /*
+        * Wait for the lockd process to start, but since we're holding
+        * the lockd semaphore, we can't wait around forever ...
+        */

+ if (wait_event_interruptible_timeout(lockd_start,
+ nlmsvc_pid != 0, HZ)) {
+ printk(KERN_WARNING
+ "lockd_down: lockd failed to start\n");
+ }
/*
* Note: svc_serv structures have an initial use count of 1,
* so we exit through here on both success and failure.
@@ -298,16 +306,12 @@
* Wait for the lockd process to exit, but since we're holding
* the lockd semaphore, we can't wait around forever ... */

-       clear_thread_flag(TIF_SIGPENDING);
-       interruptible_sleep_on_timeout(&lockd_exit, HZ);
-       if (nlmsvc_pid) {
+       if (wait_event_interruptible_timeout(lockd_exit,
+                                            nlmsvc_pid == 0, HZ)) {
                printk(KERN_WARNING
                        "lockd_down: lockd failed to exit, clearing
pid\n");
                nlmsvc_pid = 0;
        }
-       spin_lock_irq(&current->sighand->siglock);
-       recalc_sigpending();
-       spin_unlock_irq(&current->sighand->siglock);
 out:
        up(&nlmsvc_sema);

}
@@ -423,7 +427,6 @@

static int __init init_nlm(void)
{

-       init_MUTEX_LOCKED(&lockd_start);
        nlm_sysctl_table = register_sysctl_table(nlm_sysctl_root, 0);
        return nlm_sysctl_table ? 0 : -ENOMEM;

}

Cleaner, but not perfect. The return value is > 0, if the timeout is not reached. Grmbl.

True. Will do so.

tglx

@@ -46,7 +46,7 @@
 int				nlmsvc_grace_period;
 unsigned long			nlmsvc_timeout;
 
-static DECLARE_MUTEX(lockd_start);
+static DECLARE_WAIT_QUEUE_HEAD(lockd_start);
 static DECLARE_WAIT_QUEUE_HEAD(lockd_exit);
 
 /*

@@ -109,7 +109,7 @@
 	 * Let our maker know we're running.
 	 */
 	nlmsvc_pid = current->pid;
-	up(&lockd_start);
+	wake_up(&lockd_start);
 
 	daemonize("lockd");
 

@@ -230,6 +230,7 @@
 		printk(KERN_WARNING
 			"lockd_up: no pid, %d users??\n", nlmsvc_users);
 
+
 	error = -ENOMEM;
 	serv = svc_create(&nlmsvc_program, LOCKD_BUFSIZE);
 	if (!serv) {

@@ -258,8 +259,15 @@
 			"lockd_up: create thread failed, error=%d\n", error);
 		goto destroy_and_out;
 	}
-	down(&lockd_start);
-
+	/*
+	 * Wait for the lockd process to start, but since we're holding
+	 * the lockd semaphore, we can't wait around forever ...
+	 */
+	if (wait_event_interruptible_timeout(lockd_start, 
+					     nlmsvc_pid != 0, HZ) <= 0) {
+		printk(KERN_WARNING 
+			"lockd_down: lockd failed to start\n");
+	}
 	/*
 	 * Note: svc_serv structures have an initial use count of 1,
 	 * so we exit through here on both success and failure.

@@ -298,16 +306,12 @@
 	 * Wait for the lockd process to exit, but since we're holding
 	 * the lockd semaphore, we can't wait around forever ...
 	 */
-	clear_thread_flag(TIF_SIGPENDING);
-	interruptible_sleep_on_timeout(&lockd_exit, HZ);
-	if (nlmsvc_pid) {
+	if (!wait_event_interruptible_timeout(lockd_exit, 
+					     nlmsvc_pid == 0, HZ) <= 0) {
 		printk(KERN_WARNING 
 			"lockd_down: lockd failed to exit, clearing pid\n");
 		nlmsvc_pid = 0;
 	}
-	spin_lock_irq(&current->sighand->siglock);
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
 out:
 	up(&nlmsvc_sema);
 }

@@ -423,7 +427,6 @@
 
 static int __init init_nlm(void)
 {
-	init_MUTEX_LOCKED(&lockd_start);
 	nlm_sysctl_table = register_sysctl_table(nlm_sysctl_root, 0);
 	return nlm_sysctl_table ? 0 : -ENOMEM;
 }

I can trigger the deadlock detection when I try to ping my default gateway. I'm attaching the log from dmesg.

Michal

BUG: semaphore deadlock detected!
.. task ksoftirqd/0/2 is holding c04019c4.
0000012c 00000001 c14f4000 00000000 c14f5f9c c011e713 c03a36b8 c011e7d9 
       c011eb18 0000000a c03a36b8 c14f4000 c14f4000 00000000 c14f5fa4 c011e7f1 
       c14f5fbc c011eb18 00000001 fffffff6 c14f4000 c14e3f70 c14f5fec c012d333 
Call Trace:
 [<c011e713>] ___do_softirq+0x83/0xc8
 [<c011e7d9>] _do_softirq+0x8/0x22
 [<c011eb18>] ksoftirqd+0x93/0xd1
 [<c011e7f1>] _do_softirq+0x20/0x22
 [<c011eb18>] ksoftirqd+0x93/0xd1
 [<c012d333>] kthread+0xaa/0xaf
 [<c011ea85>] ksoftirqd+0x0/0xd1
 [<c012d289>] kthread+0x0/0xaf
 [<c01032f1>] kernel_thread_helper+0x5/0xb

preempt count: 00000003
. 3-level deep critical section nesting:
.. entry 1: down_write+0x95/0x97 / (dev_queue_xmit_nit+0x41/0x127) .. entry 2: __down_write+0x43/0x190 / (down_write+0x52/0x97) .. entry 3: print_traces+0x1d/0x56 / (show_stack+0x85/0x9b)

...#0 task ksoftirqd/0/2 is holding c04019c4.

------------[ cut here ]------------
kernel BUG at lib/rwsem-generic.c:416!
invalid operand: 0000 [#1]
PREEMPT 
Modules linked in: ipt_REJECT ipt_pkttype ipt_LOG ipt_state ipt_multiport ipt_conntrack iptable_mangle ip_nat_irc ip_nat_tftp ip_nat_ftp iptable_nat ip_conntrack_irc ip_conntrack_tftp ip_conntrack_ftp ip_conntrack iptable_filter ip_tables af_packet 8139too 8139cp mii crc32 e1000 snd_intel8x0 snd_ac97_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd soundcore snd_page_alloc ehci_hcd usbhid uhci_hcd usbcore intel_mch_agp intel_agp evdev nls_iso8859_1 nls_cp437 vfat fat dm_mod floppy ide_cd cdrom psmouse unix
CPU:    0
EIP:    0060:[<c0289aca>]    Not tainted VLI
EFLAGS: 00010002   (2.6.9-rc4-mm1-RT-U5) 

EIP is at __down_write+0xad/0x190
eax: 00000001 ebx: c14e0d20 ecx: 00000000 edx: c14f4000
esi: c04019c4 edi: dff1b080 ebp: c14f5d64 esp: c14f5d48
ds: 007b es: 007b ss: 0068 preempt: 00000003
Process ksoftirqd/0 (pid: 2, threadinfo=c14f4000 task=c14e0d20)

Stack: c04019c4 c04019c8 c04019c8 c14e0d20 00000002 c14f4000 c04019c4 c14f5d7c 
       c01b33c8 c04019c4 c14e0d20 dec0f000 df59a000 c14f5da0 c02364c5 c04019c0 
       00000202 c14f5da0 df59a000 dec0f000 df59a000 df59a358 c14f5dc4 c02420cd 
Call Trace:
 [<c01b33c8>] down_write+0x52/0x97
 [<c02364c5>] dev_queue_xmit_nit+0x41/0x127
 [<c02420cd>] qdisc_restart+0x182/0x1ac
 [<c0236964>] dev_queue_xmit+0x194/0x230
 [<c023c3e3>] neigh_resolve_output+0xf1/0x1e5
 [<c023bf8d>] neigh_update+0x2c3/0x368
 [<c0272642>] arp_process+0x1f8/0x5ac
 [<c01132d0>] mcount+0x14/0x18
 [<c0272a0a>] arp_rcv+0x14/0x155
 [<c0236e14>] netif_receive_skb+0x10f/0x1ab
 [<c0241c7e>] eth_type_trans+0xe/0xc8
 [<e097582f>] rtl8139_rx+0x185/0x326 [8139too]
 [<e0975bbb>] rtl8139_poll+0x5d/0xfe [8139too]
 [<c023707b>] net_rx_action+0x7c/0x143
 [<c011e713>] ___do_softirq+0x83/0xc8
 [<c011e7d9>] _do_softirq+0x8/0x22
 [<c011eb18>] ksoftirqd+0x93/0xd1
 [<c011e7f1>] _do_softirq+0x20/0x22
 [<c011eb18>] ksoftirqd+0x93/0xd1
 [<c012d333>] kthread+0xaa/0xaf
 [<c011ea85>] ksoftirqd+0x0/0xd1
 [<c012d289>] kthread+0x0/0xaf
 [<c01032f1>] kernel_thread_helper+0x5/0xb

preempt count: 00000004
. 4-level deep critical section nesting:
.. entry 1: down_write+0x95/0x97 / (dev_queue_xmit_nit+0x41/0x127) .. entry 2: __down_write+0x43/0x190 / (down_write+0x52/0x97) .. entry 3: die+0x3f/0x196 / (do_invalid_op+0x106/0x108) .. entry 4: print_traces+0x1d/0x56 / (show_stack+0x85/0x9b)

Code: 10 89 45 ec 89 34 24 e8 47 90 f2 ff 89 34 24 e8 04 91 f2 ff 85 c0 74 1b a1 58 36 2d c0 85 c0 74 12 c7 05 58 36 2d c0 00 00 00 00 <0f> 0b a0 01 2f 32 2a c0 89 b3 70 06 00 00 9c 58 c1 e8 09 83 f0 
 <3>BUG: sleeping function called from invalid context ksoftirqd/0(2) at lib/rwsem-generic.c:593
in_atomic():1 [00000002], irqs_disabled():0
 [<c0116e6c>] __might_sleep+0xc4/0xd6
 [<c01b3275>] down_read+0x27/0x96
 [<c011a353>] profile_task_exit+0x1b/0x43
 [<c01132d0>] mcount+0x14/0x18
 [<c011bfbf>] do_exit+0x1f/0x4a3
 [<c0105e9a>] do_invalid_op+0x0/0x108
 [<c0105af8>] do_divide_error+0x0/0x132
 [<c0114a1c>] fixup_exception+0x1c/0x38
 [<c0105fa0>] do_invalid_op+0x106/0x108
 [<c01132d0>] mcount+0x14/0x18
 [<c0289aca>] __down_write+0xad/0x190
 [<c0119e3b>] release_console_sem+0xa7/0xfe
 [<c0119ce2>] vprintk+0x116/0x179
 [<c0105309>] error_code+0x2d/0x38
 [<c0289aca>] __down_write+0xad/0x190
 [<c01b33c8>] down_write+0x52/0x97
 [<c02364c5>] dev_queue_xmit_nit+0x41/0x127
 [<c02420cd>] qdisc_restart+0x182/0x1ac
 [<c0236964>] dev_queue_xmit+0x194/0x230
 [<c023c3e3>] neigh_resolve_output+0xf1/0x1e5
 [<c023bf8d>] neigh_update+0x2c3/0x368
 [<c0272642>] arp_process+0x1f8/0x5ac
 [<c01132d0>] mcount+0x14/0x18
 [<c0272a0a>] arp_rcv+0x14/0x155
 [<c0236e14>] netif_receive_skb+0x10f/0x1ab
 [<c0241c7e>] eth_type_trans+0xe/0xc8
 [<e097582f>] rtl8139_rx+0x185/0x326 [8139too]
 [<e0975bbb>] rtl8139_poll+0x5d/0xfe [8139too]
 [<c023707b>] net_rx_action+0x7c/0x143
 [<c011e713>] ___do_softirq+0x83/0xc8
 [<c011e7d9>] _do_softirq+0x8/0x22
 [<c011eb18>] ksoftirqd+0x93/0xd1
 [<c011e7f1>] _do_softirq+0x20/0x22
 [<c011eb18>] ksoftirqd+0x93/0xd1
 [<c012d333>] kthread+0xaa/0xaf
 [<c011ea85>] ksoftirqd+0x0/0xd1
 [<c012d289>] kthread+0x0/0xaf
 [<c01032f1>] kernel_thread_helper+0x5/0xb

preempt count: 00000003
. 3-level deep critical section nesting:
.. entry 1: down_write+0x95/0x97 / (dev_queue_xmit_nit+0x41/0x127) .. entry 2: __down_write+0x43/0x190 / (down_write+0x52/0x97) .. entry 3: print_traces+0x1d/0x56 / (dump_stack+0x23/0x27)

BUG: scheduling while atomic: ksoftirqd/0/0x04000002/2
caller is cond_resched+0x62/0x82
 [<c0288df2>] __sched_text_start+0x53e/0x571
 [<c02894c4>] cond_resched+0x62/0x82
 [<c01132d0>] mcount+0x14/0x18
 [<c02894c4>] cond_resched+0x62/0x82
 [<c01b327a>] down_read+0x2c/0x96
 [<c011a353>] profile_task_exit+0x1b/0x43
 [<c01132d0>] mcount+0x14/0x18
 [<c011bfbf>] do_exit+0x1f/0x4a3
 [<c0105e9a>] do_invalid_op+0x0/0x108
 [<c0105af8>] do_divide_error+0x0/0x132
 [<c0114a1c>] fixup_exception+0x1c/0x38
 [<c0105fa0>] do_invalid_op+0x106/0x108
 [<c01132d0>] mcount+0x14/0x18
 [<c0289aca>] __down_write+0xad/0x190
(ksoftirqd/0/2/CPU#0): new 856 us maximum-latency critical section.
 => started at timestamp 144481672: <__call_console_drivers+0x19/0x65>
 =>   ended at timestamp 144482528: <call_console_drivers+0x9e/0x13f>
 [<c012ec10>] touch_preempt_timing+0x3d/0x41
 [<c012eb37>] check_preempt_timing+0x1b2/0x24e
 [<c0119a54>] call_console_drivers+0x9e/0x13f
 [<c012ec10>] touch_preempt_timing+0x3d/0x41
 [<c0119a54>] call_console_drivers+0x9e/0x13f
 [<c0119a54>] call_console_drivers+0x9e/0x13f
 [<c0288edb>] preempt_schedule+0x11/0x7a
 [<c0119e04>] release_console_sem+0x70/0xfe
 [<c0119ce2>] vprintk+0x116/0x179
 [<c0289aca>] __down_write+0xad/0x190
 [<c0119bc8>] printk+0x1d/0x21
 [<c01055f8>] show_trace+0x78/0xb2
 [<c0289aca>] __down_write+0xad/0x190
 [<c01056f0>] dump_stack+0x23/0x27
 [<c0288df2>] __sched_text_start+0x53e/0x571
 [<c02894c4>] cond_resched+0x62/0x82
 [<c01132d0>] mcount+0x14/0x18
 [<c02894c4>] cond_resched+0x62/0x82
 [<c01b327a>] down_read+0x2c/0x96
 [<c011a353>] profile_task_exit+0x1b/0x43
 [<c01132d0>] mcount+0x14/0x18
 [<c011bfbf>] do_exit+0x1f/0x4a3
 [<c0105e9a>] do_invalid_op+0x0/0x108
 [<c0105af8>] do_divide_error+0x0/0x132
 [<c0114a1c>] fixup_exception+0x1c/0x38
 [<c0105fa0>] do_invalid_op+0x106/0x108
 [<c01132d0>] mcount+0x14/0x18
 [<c0289aca>] __down_write+0xad/0x190
 [<c0119e3b>] release_console_sem+0xa7/0xfe
 [<c0119ce2>] vprintk+0x116/0x179
 [<c0105309>] error_code+0x2d/0x38
 [<c0289aca>] __down_write+0xad/0x190
 [<c01b33c8>] down_write+0x52/0x97
 [<c02364c5>] dev_queue_xmit_nit+0x41/0x127
 [<c02420cd>] qdisc_restart+0x182/0x1ac
 [<c0236964>] dev_queue_xmit+0x194/0x230
 [<c023c3e3>] neigh_resolve_output+0xf1/0x1e5
 [<c023bf8d>] neigh_update+0x2c3/0x368
 [<c0272642>] arp_process+0x1f8/0x5ac
 [<c01132d0>] mcount+0x14/0x18
 [<c0272a0a>] arp_rcv+0x14/0x155
 [<c0236e14>] netif_receive_skb+0x10f/0x1ab
 [<c0241c7e>] eth_type_trans+0xe/0xc8
 [<e097582f>] rtl8139_rx+0x185/0x326 [8139too]
 [<e0975bbb>] rtl8139_poll+0x5d/0xfe [8139too]
 [<c023707b>] net_rx_action+0x7c/0x143
 [<c011e713>] ___do_softirq+0x83/0xc8
 [<c011e7d9>] _do_softirq+0x8/0x22
 [<c011eb18>] ksoftirqd+0x93/0xd1
 [<c011e7f1>] _do_softirq+0x20/0x22
 [<c011eb18>] ksoftirqd+0x93/0xd1
 [<c012d333>] kthread+0xaa/0xaf
 [<c011ea85>] ksoftirqd+0x0/0xd1
 [<c012d289>] kthread+0x0/0xaf
 [<c01032f1>] kernel_thread_helper+0x5/0xb

preempt count: 04000003
. 3-level deep critical section nesting:
.. entry 1: down_write+0x95/0x97 / (dev_queue_xmit_nit+0x41/0x127) .. entry 2: __down_write+0x43/0x190 / (down_write+0x52/0x97) .. entry 3: print_traces+0x1d/0x56 / (dump_stack+0x23/0x27)

=> dump-end timestamp 144483248

 [<c0119e3b>] release_console_sem+0xa7/0xfe
 [<c0119ce2>] vprintk+0x116/0x179
 [<c0105309>] error_code+0x2d/0x38
 [<c0289aca>] __down_write+0xad/0x190
 [<c01b33c8>] down_write+0x52/0x97
 [<c02364c5>] dev_queue_xmit_nit+0x41/0x127
 [<c02420cd>] qdisc_restart+0x182/0x1ac
 [<c0236964>] dev_queue_xmit+0x194/0x230
 [<c023c3e3>] neigh_resolve_output+0xf1/0x1e5
 [<c023bf8d>] neigh_update+0x2c3/0x368
 [<c0272642>] arp_process+0x1f8/0x5ac
 [<c01132d0>] mcount+0x14/0x18
 [<c0272a0a>] arp_rcv+0x14/0x155
 [<c0236e14>] netif_receive_skb+0x10f/0x1ab
 [<c0241c7e>] eth_type_trans+0xe/0xc8
 [<e097582f>] rtl8139_rx+0x185/0x326 [8139too]
 [<e0975bbb>] rtl8139_poll+0x5d/0xfe [8139too]
 [<c023707b>] net_rx_action+0x7c/0x143
 [<c011e713>] ___do_softirq+0x83/0xc8
 [<c011e7d9>] _do_softirq+0x8/0x22
 [<c011eb18>] ksoftirqd+0x93/0xd1
 [<c011e7f1>] _do_softirq+0x20/0x22
 [<c011eb18>] ksoftirqd+0x93/0xd1
 [<c012d333>] kthread+0xaa/0xaf
 [<c011ea85>] ksoftirqd+0x0/0xd1
 [<c012d289>] kthread+0x0/0xaf
 [<c01032f1>] kernel_thread_helper+0x5/0xb

preempt count: 04000003
. 3-level deep critical section nesting:
.. entry 1: down_write+0x95/0x97 / (dev_queue_xmit_nit+0x41/0x127) .. entry 2: __down_write+0x43/0x190 / (down_write+0x52/0x97) .. entry 3: print_traces+0x1d/0x56 / (dump_stack+0x23/0x27)

note: ksoftirqd/0[2] exited with preempt_count 2

BUG: scheduling while atomic: ksoftirqd/0/0x00000002/2
caller is do_exit+0x2a7/0x4a3
 [<c0288df2>] __sched_text_start+0x53e/0x571
 [<c011c247>] do_exit+0x2a7/0x4a3
 [<c01132d0>] mcount+0x14/0x18
 [<c011c247>] do_exit+0x2a7/0x4a3
 [<c0105e9a>] do_invalid_op+0x0/0x108
 [<c0105af8>] do_divide_error+0x0/0x132
 [<c0114a1c>] fixup_exception+0x1c/0x38
 [<c0105fa0>] do_invalid_op+0x106/0x108
 [<c01132d0>] mcount+0x14/0x18
 [<c0289aca>] __down_write+0xad/0x190
 [<c0119e3b>] release_console_sem+0xa7/0xfe
 [<c0119ce2>] vprintk+0x116/0x179
 [<c0105309>] error_code+0x2d/0x38
 [<c0289aca>] __down_write+0xad/0x190
 [<c01b33c8>] down_write+0x52/0x97
 [<c02364c5>] dev_queue_xmit_nit+0x41/0x127
 [<c02420cd>] qdisc_restart+0x182/0x1ac
 [<c0236964>] dev_queue_xmit+0x194/0x230
 [<c023c3e3>] neigh_resolve_output+0xf1/0x1e5
 [<c023bf8d>] neigh_update+0x2c3/0x368
 [<c0272642>] arp_process+0x1f8/0x5ac
 [<c01132d0>] mcount+0x14/0x18
 [<c0272a0a>] arp_rcv+0x14/0x155
 [<c0236e14>] netif_receive_skb+0x10f/0x1ab
 [<c0241c7e>] eth_type_trans+0xe/0xc8
 [<e097582f>] rtl8139_rx+0x185/0x326 [8139too]
 [<e0975bbb>] rtl8139_poll+0x5d/0xfe [8139too]
 [<c023707b>] net_rx_action+0x7c/0x143
 [<c011e713>] ___do_softirq+0x83/0xc8
 [<c011e7d9>] _do_softirq+0x8/0x22
 [<c011eb18>] ksoftirqd+0x93/0xd1
 [<c011e7f1>] _do_softirq+0x20/0x22
 [<c011eb18>] ksoftirqd+0x93/0xd1
 [<c012d333>] kthread+0xaa/0xaf
 [<c011ea85>] ksoftirqd+0x0/0xd1
 [<c012d289>] kthread+0x0/0xaf
 [<c01032f1>] kernel_thread_helper+0x5/0xb

preempt count: 00000003
. 3-level deep critical section nesting:
.. entry 1: down_write+0x95/0x97 / (dev_queue_xmit_nit+0x41/0x127) .. entry 2: __down_write+0x43/0x190 / (down_write+0x52/0x97) .. entry 3: print_traces+0x1d/0x56 / (dump_stack+0x23/0x27)

i have released the -U6 Real-Time Preemption patch:

http://redhat.com/~mingo/realtime-preempt/realtime-preempt-2.6.9-rc4-mm1-U6

this is a fixes-only release.

found and fixed the 'big bug' that was probably the one causing stability problems for a number of people. There was a small window for a task double-free race to occur, causing all sorts of crashes later on. This bug could trigger on UP and SMP systems alike, on SMP being a bit more frequent.

Also, a common networking deadlock was found and fixed as well, using the deadlock detector.

Changes since -U5:

- crash bug: fix task double free caused by irq-preemption of do_exit(). This got introduced in -U5 as part of a simplification of the zombie-reaping rewrite that the -U series did. That rewrite had an unrobustness which got triggered by -U5 in a subtle way, opening up a small window at the end of do_exit() for an interrupt-triggered preemption to cause a double-free. This could fix some of the crashes reported by Rui Nuno Capela, Mark H Johnson.

- deadlock bug: fix networking deadlock reported by Matthew L Foster. Restructured the way the RT-RCU locking of ptype_lock is done - it's cleaner and more obvious now (besides being correct). This could also fix the deadlock reported by Michal Schmidt.

- deadlock bug: fix NFS startup breakage related to semaphore abuse, patch from Thomas Gleixner.

- build bug: fix aha152x.c, based on patch from K.R. Foley.

- build bug: fix compilation error in qla2xxx. (reported by Fernando Pablo Lopez-Lezcano and Mark H Johnson)

- build bug: fix !PREEMPT_REALTIME compilation error. (reported by Matthew L Foster)

- build bug: fix ipmi-watchdog compilation error. (reported by Mark H Johnson)

- tracer fix: if an assert happens within the tracer then we'd get into infinite recursion. The fix was to correctly nest tracing on/off points.

- debug enhancement: added a few more asserts to catch underflowing atomic counters. (this made the task double-free trigger earlier.)

- debug enhancement: extended CONFIG_DEBUG_STACKOVERFLOW to be mcount()-driven as well. This helps in catching stack overflows much more reliably than the do_IRQ() based method.

to create a -U6 tree from scratch, the patching order is:

http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.8.tar.bz2
+ http://kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6.9-rc4.bz2
+ http://kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.9-rc4/2.6.9-rc4-mm1/2.6.9-rc4-mm1.bz2
+ http://redhat.com/~mingo/realtime-preempt/realtime-preempt-2.6.9-rc4-mm1-U6

Ingo

i've re-released the patch because shortly after releasing it i found a false-positive in the deadlock-detector that was triggering in oowriter.

The latest patch is thus:

 $ md5sum realtime-preempt-2.6.9-rc4-mm1-U6
 9fd546bdd2d45ff1a8d5a88160135170  realtime-preempt-2.6.9-rc4-mm1-U6

if you've got the earlier one and have CONFIG_RWSEM_DEADLOCK_DETECT enabled then please download the new patch.

Ingo

I'm experiencing terrible kernel panics at a very early bootstrap stage while testing the U5 and U6 latest patch(es) on my laptop (P4/UP) -- (Ingo: this is about the very same trouble I've reported while pre-testing U6).

Sorry that I can't show any trace dumps; only a hard-screenshot (with digital camera?) would be possible but rather incomplete. The serial console hack is not an option--these "modern" laptops doesn't come with serial ports anymore, and netconsole is a no-op at a so early point of the boot process. Or so I believe.

OK. After some incremental configurations, I've isolated that those oops(es) only occurs if PREEMPT_TIMING and/or LATENCY_TRACE areset (Y). My first suspect was that newest RWSEM_DEADLOCK_DETECT, but it wasn't the case.

So something has broken on that non-preemptible critical section timing stuff since U4.

Hasn't anybody else stumbled on this?

rncbc aka Rui Nuno Capela
[email protected]

i'm using it myself and havent seen the problem yet. Could you send me the latest .configs, the working and the broken one too? I'll try to reprodue it (or maybe someone else with a serial console sees it too).

Ingo

I am seeing something similar here with both U5 and U6 on both of my SMP systems (actually I haven't gotten to try U6 on my SMP system at home yet.) On my SMP system here (dual Xeon) I get a handful of traces during the boot and then the last thing I see is a trace that has something to do with parport, but the key MIGHT be that it always seems to crap out when I get traces for 3-level deep critical section nesting. I will try to capture the trace the old-fashioned way when I get a chance shortly.

I do have U5 booted on my UP system at home though.

kr

i found older .config's from you and i tried your desktop one and it didnt crash. But when i tried your laptop's U3 .config then i got the bootup crash immediately. Debugging it ...

Ingo

one difference in your config is that you have 4K stacks enabled. Could you disable them? Especially with rwsem-detection and tracing enabled the stack footprint can get pretty large ...

Ingo

indeed, this is what triggers with your .config:

testing NMI watchdog ... OK.
ENABLING IO-APIC IRQs
..TIMER: vector=0x31 pin1=2 pin2=-1
mcount: stack overflow: 1008

  [<c012cd9f>] ___trace+0x105/0x117
  [<c012cdd7>] __mcount+0x1d/0x1f
  [<c013e015>] cache_grow+0xe/0x1ab
  [<c013e3cd>] cache_alloc_refill+0x21b/0x253

enabling 8K stacks ought to help this one. I've made the limit a bit too conservative - there's still 1000 bytes left and the assert hits. Here's the full trace, the large footprint seems to be in zlib initialization:

mcount: stack overflow: 1008

 [<c012cd9f>] ___trace+0x105/0x117
 [<c012cdd7>] __mcount+0x1d/0x1f
 [<c013e015>] cache_grow+0xe/0x1ab
 [<c013e3cd>] cache_alloc_refill+0x21b/0x253
 [<c010efec>] mcount+0x14/0x18
 [<c013e015>] cache_grow+0xe/0x1ab
 [<c013e3cd>] cache_alloc_refill+0x21b/0x253
 [<c013e730>] __kmalloc+0x82/0x9f
 [<c03607c8>] malloc+0x1e/0x20
 [<c01008c9>] huft_build+0x309/0x5e8
 [<c0101bec>] inflate+0x4c/0xb0
 [<c010efec>] mcount+0x14/0x18
 [<c0101279>] inflate_fixed+0xcb/0x1a4
 [<c0101bec>] inflate+0x4c/0xb0
 [<c010efec>] mcount+0x14/0x18
 [<c0101eae>] gunzip+0x1d4/0x396
 [<c036130e>] unpack_to_rootfs+0x162/0x225
 [<c010efec>] mcount+0x14/0x18
 [<c0100434>] init+0x0/0x124
 [<c03613fe>] populate_rootfs+0x2d/0x3f
 [<c010046b>] init+0x37/0x124
 [<c0102365>] kernel_thread_helper+0x5/0xb

Ingo

i've added a stackframe-size field to the end of every stack trace entry:

mcount: stack overflow: 1008

 [<c012cdaf>] ___trace+0x105/0x117 (12)
 [<c012cde7>] __mcount+0x1d/0x1f (32)
 [<c013e025>] cache_grow+0xe/0x1ab (4)
 [<c013e3dd>] cache_alloc_refill+0x21b/0x253 (4)
 [<c010effc>] mcount+0x14/0x18 (8)
 [<c013e025>] cache_grow+0xe/0x1ab (20)
 [<c013e3dd>] cache_alloc_refill+0x21b/0x253 (52)
 [<c013e740>] __kmalloc+0x82/0x9f (48)
 [<c03607c8>] malloc+0x1e/0x20 (28)
 [<c01008c9>] huft_build+0x309/0x5e8 (16)
 [<c0101bec>] inflate+0x4c/0xb0 (1444)
 [<c010effc>] mcount+0x14/0x18 (8)
 [<c0101279>] inflate_fixed+0xcb/0x1a4 (20)
 [<c0101bec>] inflate+0x4c/0xb0 (1212)
 [<c010effc>] mcount+0x14/0x18 (12)
 [<c0101eae>] gunzip+0x1d4/0x396 (20)
 [<c036130e>] unpack_to_rootfs+0x162/0x225 (28)
 [<c010effc>] mcount+0x14/0x18 (8)
 [<c0100434>] init+0x0/0x124 (4)
 [<c03613fe>] populate_rootfs+0x2d/0x3f (16)
 [<c010046b>] init+0x37/0x124 (20)
 [<c0102365>] kernel_thread_helper+0x5/0xb (20)

as suspected, zlib's huft_build() is fun:

lib/inflate.c:

  #define N_MAX 288       /* maximum number of codes in any set */

  STATIC int huft_build(
  ...
  {

unsigned v[N_MAX]; /* values in order of bit length */

a whopping 1152 bytes for this local variable alone! The patch below fixes this, but there are other overflows as well, later in the bootup.

Ingo

@@ -300,7 +300,7 @@ STATIC int huft_build(
   register struct huft *q;      /* points to current table */
   struct huft r;                /* table entry for structure assignment */
   struct huft *u[BMAX];         /* table stack */
-  unsigned v[N_MAX];            /* values in order of bit length */
+  unsigned *v;                  /* values in order of bit length */
   register int w;               /* bits before this table == (l * h) */
   unsigned x[BMAX+1];           /* bit offsets, then code stack */
   unsigned *xp;                 /* pointer into x */

@@ -309,6 +309,10 @@ STATIC int huft_build(
 
 DEBG("huft1 ");
 
+  /* allocate new table */
+  v = (unsigned *)malloc(sizeof(unsigned)*N_MAX);
+  if (!v)
+    return 3;             /* not enough memory */
   /* Generate counts for each bit length */
   memzero(c, sizeof(c));
   p = b;  i = n;

@@ -322,6 +326,7 @@ DEBG("huft1 ");
   {
     *t = (struct huft *)NULL;
     *m = 0;
+    free(v);
     return 0;
   }
 

@@ -347,10 +352,14 @@ DEBG("huft3 ");
 
   /* Adjust last length count to fill out codes, if needed */
   for (y = 1 << j; j < i; j++, y <<= 1)
-    if ((y -= c[j]) < 0)
+    if ((y -= c[j]) < 0) {
+      free(v);
       return 2;                 /* bad input: more codes than bits */
-  if ((y -= c[i]) < 0)
+    }
+  if ((y -= c[i]) < 0) {
+    free(v);
     return 2;
+  }
   c[i] += y;
 
 DEBG("huft4 ");

@@ -422,6 +431,7 @@ DEBG1("3 ");
         {
           if (h)
             huft_free(u[0]);
+          free(v);
           return 3;             /* not enough memory */
         }
 DEBG1("4 ");

@@ -485,6 +495,7 @@ DEBG("h6f ");
 
 DEBG("huft7 ");
 
+  free(v);
   /* Return true (1) if we were given an incomplete table */
   return y != 0 && g != 1;
 }

Same here on al DELL P4/UP.

tglx

any chance for serial logging on that box?

and does this bootup crash go away if you unset PREEMPT_TIMING or LATENCY_TRACE, as suggested by Rui?

Ingo

No

It comes into init now, but dies when loading the AGP driver. Have to look into this.

tglx

The laptop boots now. The culprits, which break the boot are:
pci-hotplug and firewire drivers.

agp loads correct.

No deeper insight yet.

The IPV6 code triggers the irqs_disabled() check in schedule. dmesg output attached.

tglx

0000 (reserved)
0MB HIGHMEM available.
511MB LOWMEM available.
On node 0 totalpages: 131023
DMA zone: 4096 pages, LIFO batch:1
Normal zone: 126927 pages, LIFO batch:16
HighMem zone: 0 pages, LIFO batch:1
DMI 2.3 present.
ACPI: RSDP (v000 DELL ) @ 0x000fdea0
ACPI: RSDT (v001 DELL CPi R 0x27d40113 ASL 0x00000061) @ 0x1fff0000
ACPI: FADT (v001 DELL CPi R 0x27d40113 ASL 0x00000061) @ 0x1fff0400
ACPI: MADT (v001 DELL CPi R 0x27d40113 ASL 0x00000047) @ 0x1fff0c00
ACPI: DSDT (v001 INT430 SYSFexxx 0x00001001 MSFT 0x0100000e) @ 0x00000000
ACPI: PM-Timer IO Port: 0x1008
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
Processor #0 15:2 APIC version 20
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] disabled)
ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
ACPI: IOAPIC (id[0x01] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 1, version 32, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
ACPI: IRQ0 used by override.
ACPI: IRQ2 used by override.
ACPI: IRQ9 used by override.
Enabling APIC mode: Flat. Using 1 I/O APICs
Using ACPI (MADT) for SMP configuration information
Built 1 zonelists
Initializing CPU#0
Kernel command line: root=/dev/hdc6 ro
PID hash table entries: 2048 (order: 11, 32768 bytes)
Detected 3056.985 MHz processor.
Using pmtmr for high-res timesource
Console: colour VGA+ 80x25
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 515412k/524092k available (1776k kernel code, 8124k reserved, 811k data, 148k init, 0k highmem) Checking if this processor honours the WP bit even in supervisor mode... Ok. Calibrating delay loop... 6062.08 BogoMIPS (lpj=3031040)
Security Scaffold v1.0.0 initialized
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000
CPU: After vendor identify, caps: bfebfbff 00000000 00000000 00000000
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 512K
CPU: After all inits, caps: bfebfbff 00000000 00000000 00000080
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU0: Intel P4/Xeon Extended MCE MSRs (12) available
CPU0: Thermal monitoring enabled
CPU: Intel Mobile Intel(R) Pentium(R) 4 CPU 3.06GHz stepping 09
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
ENABLING IO-APIC IRQs
..TIMER: vector=0x31 pin1=2 pin2=-1
ksoftirqd started up.
NET: Registered protocol family 16
PCI: PCI BIOS revision 2.10 entry at 0xfcf1e, last bus=2
PCI: Using configuration type 1
mtrr: v2.0 (20020519)
ACPI: Subsystem revision 20040816
ACPI: Interpreter enabled
ACPI: Using IOAPIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (00:00)
PCI: Probing PCI hardware (bus 00)
PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1
PCI: Transparent bridge - 0000:00:1e.0
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
ACPI: PCI Interrupt Link [LNKA] (IRQs 9 10 *11)
ACPI: PCI Interrupt Link [LNKB] (IRQs 5 7) *11
ACPI: PCI Interrupt Link [LNKC] (IRQs 9 10 *11)
ACPI: PCI Interrupt Link [LNKD] (IRQs 5 7 9 10 *11)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 9 10 *11 12 14 15)
ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 9 10 *11 12 14 15)
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.AGP_._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PCIE._PRT]
Linux Plug and Play Support v0.97 (c) Adam Belay
PnPBIOS: Scanning system for PnP BIOS support...
PnPBIOS: Found PnP BIOS installation structure at 0xc00fe2d0
PnPBIOS: PnP BIOS version 1.0, entry 0xf0000:0xe2f4, dseg 0x40
PnPBIOS: 12 nodes reported by PnP BIOS; 12 recorded by driver
PCI: Using ACPI for IRQ routing
** PCI interrupts are no longer routed automatically. If this
** causes a device to stop working, it is probably because the
** driver failed to call pci_enable_device(). As a temporary
** workaround, the "pci=routeirq" argument restores the old
** behavior. If this argument makes the device work again,
** please email the output of "lspci" to [email protected]
** so I can fix the driver.
pnp: 00:01: ioport range 0x1000-0x105f could not be reserved
pnp: 00:01: ioport range 0x1060-0x107f has been reserved
pnp: 00:01: ioport range 0x1080-0x10bf has been reserved
pnp: 00:01: ioport range 0x10c0-0x10ff could not be reserved
pnp: 00:01: ioport range 0xf400-0xf4fe has been reserved
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
devfs: 2004-01-31 Richard Gooch ([email protected])
devfs: boot_options: 0x0
Initializing Cryptographic API
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
ACPI: PS/2 Keyboard Controller [KBC] at I/O 0x60, 0x66, irq 1
ACPI: PS/2 Mouse Controller [PS2M] at irq 12
i8042.c: Can't read CTR while initializing i8042.
Serial: 8250/16550 driver $Revision: 1.90 $ 48 ports, IRQ sharing enabled
ACPI: PCI interrupt 0000:00:1f.6[B] -> GSI 17 (level, low) -> IRQ 17
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ICH4: IDE controller at PCI slot 0000:00:1f.1
PCI: Enabling device 0000:00:1f.1 (0005 -> 0007)
ACPI: PCI interrupt 0000:00:1f.1[A] -> GSI 16 (level, low) -> IRQ 16
ICH4: chipset revision 1
ICH4: not 100% native mode: will probe irqs later

    ide0: BM-DMA at 0xbfa0-0xbfa7, BIOS settings: hda:DMA, hdb:pio
    ide1: BM-DMA at 0xbfa8-0xbfaf, BIOS settings: hdc:DMA, hdd:pio

Probing IDE interface ide0...
hda: HL-DT-STCD-RW/DVD-ROM GCC-4241N, ATAPI CD/DVD-ROM drive
elevator: using anticipatory as default io scheduler
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Probing IDE interface ide1...
hdc: IC25N040ATMR04-0, ATA DISK drive
ide1 at 0x170-0x177,0x376 on irq 15
Probing IDE interface ide2...
ide2: Wait for ready failed before probe !
Probing IDE interface ide3...
ide3: Wait for ready failed before probe !
Probing IDE interface ide4...
ide4: Wait for ready failed before probe !
Probing IDE interface ide5...
ide5: Wait for ready failed before probe !
hdc: max request size: 1024KiB
hdc: 78140160 sectors (40007 MB) w/1740KiB Cache, CHS=16383/255/63, UDMA(100)
hdc: cache flushes supported
/dev/ide/host0/bus1/target0/lun0: p1 p2 p3 p4 < p5 p6 p7 >
NET: Registered protocol family 2
IP: routing cache hash table of 64 buckets, 18Kbytes
TCP: Hash tables configured (established 512 bind 923)
NET: Registered protocol family 8
NET: Registered protocol family 20
ACPI: (supports S0 S1 S3 S4 S4bios S5)
ACPI wakeup devices:
LID PBTN PCI0 USB0 USB1 USB2 USB3 MODM PCIE
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
EXT3-fs: recovery complete.
kjournald starting. Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 148k freed
NET: Registered protocol family 1
EXT3 FS on hdc6, internal journal
Real Time Clock Driver v1.12
hda: ATAPI 24X DVD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.20
b44.c:v0.95 (Aug 3, 2004)
ACPI: PCI interrupt 0000:02:01.0[A] -> GSI 17 (level, low) -> IRQ 17
eth0: Broadcom 4400 10/100BaseT Ethernet 00:0d:56:39:10:9e
device-mapper: 4.1.0-ioctl (2003-12-10) initialised: [email protected]
kjournald starting. Commit interval 5 seconds
EXT3 FS on hdc3, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting. Commit interval 5 seconds
EXT3 FS on hdc7, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
ACPI: PCI interrupt 0000:00:1f.5[B] -> GSI 17 (level, low) -> IRQ 17
PCI: Setting latency timer of device 0000:00:1f.5 to 64
intel8x0_measure_ac97_clock: measured 49346 usecs
intel8x0: clocking to 48000
usbcore: registered new driver usbfs
usbcore: registered new driver hub
ACPI: PCI interrupt 0000:00:1d.7[D] -> GSI 23 (level, low) -> IRQ 23
ehci_hcd 0000:00:1d.7: Intel Corp. 82801DB/DBM (ICH4/ICH4-M) USB 2.0 EHCI Controller
PCI: Setting latency timer of device 0000:00:1d.7 to 64
ehci_hcd 0000:00:1d.7: irq 23, pci mem 0xf4fffc00
ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 1
PCI: cache line size of 128 is not supported by device 0000:00:1d.7
ehci_hcd 0000:00:1d.7: USB 2.0 enabled, EHCI 1.00, driver 2004-May-10
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 6 ports detected
Linux Kernel Card Services
options: [pci] [cardbus] [pm]
PCI: Enabling device 0000:02:04.0 (0000 -> 0002)
ACPI: PCI interrupt 0000:02:04.0[A] -> GSI 16 (level, low) -> IRQ 16
Yenta: CardBus bridge found at 0000:02:04.0 [1028:015f]
Yenta: ISA IRQ mask 0x0cf8, PCI irq 16
Socket status: 30000006
input: PC Speaker
USB Universal Host Controller Interface driver v2.2
ACPI: PCI interrupt 0000:00:1d.0[A] -> GSI 16 (level, low) -> IRQ 16
uhci_hcd 0000:00:1d.0: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1
PCI: Setting latency timer of device 0000:00:1d.0 to 64
uhci_hcd 0000:00:1d.0: irq 16, io base 0xbf80
uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 2
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
ACPI: PCI interrupt 0000:00:1d.1[B] -> GSI 19 (level, low) -> IRQ 19
uhci_hcd 0000:00:1d.1: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2
PCI: Setting latency timer of device 0000:00:1d.1 to 64
uhci_hcd 0000:00:1d.1: irq 19, io base 0xbf40
uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 3
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
ACPI: PCI interrupt 0000:00:1d.2[C] -> GSI 18 (level, low) -> IRQ 18
uhci_hcd 0000:00:1d.2: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3
PCI: Setting latency timer of device 0000:00:1d.2 to 64
uhci_hcd 0000:00:1d.2: irq 18, io base 0xbf20
uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 4
usb 2-1: new low speed USB device using address 2
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 2 ports detected
usbcore: registered new driver hiddev
input: USB HID v1.10 Keyboard [Logitech USB Receiver] on usb-0000:00:1d.0-1
input: USB HID v1.10 Mouse [Logitech USB Receiver] on usb-0000:00:1d.0-1
usbcore: registered new driver usbhid /home/thomas/work/LibeRTOS/work/2.6.9-rc4-mm1-VP-U4-LRT1/drivers/usb/input/hid-core.c: v2.0:USB HID core driver
mice: PS/2 mouse device common for all mice
hw_random: RNG not detected
Intel 810 + AC97 Audio, version 1.01, 18:13:38 Oct 19 2004
ACPI: PCI interrupt 0000:00:1f.6[B] -> GSI 17 (level, low) -> IRQ 17
PCI: Setting latency timer of device 0000:00:1f.6 to 64
MC'97 1 converters and GPIO not ready (0xff00)
b44: eth0: Link is down.
NET: Registered protocol family 17
b44: eth0: Link is up at 100 Mbps, full duplex.
b44: eth0: Flow control is on for TX and on for RX.
Capability LSM initialized
NET: Registered protocol family 10
Disabled Privacy Extensions on device c0353400(lo)

BUG: sleeping function called from invalid context modprobe(3296) at /home/thomas/work/LibeRTOS/work/2.6.9-rc4-mm1-VP-U4-LRT1/lib/rwsem-generic.c:313
in_atomic():1 [00000001], irqs_disabled():0
 [<c0119e85>] __might_sleep+0xba/0xc9
 [<c02bac00>] down_read+0x1b/0x1d1
 [<c0130cd8>] _rw_mutex_read_lock+0x13/0x22
 [<e09b6d36>] ndisc_constructor+0x3d/0x21a [ipv6]
 [<c025bf7f>] neigh_create+0x1dd/0x1e9
 [<c025bc38>] neigh_lookup+0x9e/0x103
 [<e09b3303>] addrconf_dst_alloc+0x164/0x17a [ipv6]
 [<e09aa7ee>] ipv6_add_addr+0xbf/0x26a [ipv6]
 [<e09acd8b>] init_loopback+0x59/0x10f [ipv6]
 [<e09ad220>] addrconf_notify+0xfa/0x190 [ipv6]
 [<c0129358>] notifier_chain_register+0x44/0x4c
 [<c0257160>] register_netdevice_notifier+0x6c/0x6e
 [<e08a830c>] addrconf_init+0xf/0x81 [ipv6]
 [<e08a81c6>] inet6_init+0x13c/0x203 [ipv6]
 [<c0134ee1>] sys_init_module+0x17a/0x227
 [<c01060df>] syscall_call+0x7/0xb

preempt count: 00000002
. 2-level deep critical section nesting:
.. entry 1: ndisc_constructor+0x31/0x21a [ipv6] / (0x0) .. entry 2: print_traces+0x17/0x50 / (0x0)

BUG: scheduling while atomic: modprobe/0x04000001/3296
caller is cond_resched+0x58/0x73
 [<c02ba15e>] __sched_text_start+0x56e/0x5be
 [<c02ba833>] cond_resched+0x58/0x73
 [<c0106ee5>] dump_stack+0x1c/0x20
 [<c0119e85>] __might_sleep+0xba/0xc9
 [<c02ba833>] cond_resched+0x58/0x73
 [<c02bac05>] down_read+0x20/0x1d1
 [<c0130cd8>] _rw_mutex_read_lock+0x13/0x22
 [<e09b6d36>] ndisc_constructor+0x3d/0x21a [ipv6]
 [<c025bf7f>] neigh_create+0x1dd/0x1e9
 [<c025bc38>] neigh_lookup+0x9e/0x103
 [<e09b3303>] addrconf_dst_alloc+0x164/0x17a [ipv6]
 [<e09aa7ee>] ipv6_add_addr+0xbf/0x26a [ipv6]
 [<e09acd8b>] init_loopback+0x59/0x10f [ipv6]
 [<e09ad220>] addrconf_notify+0xfa/0x190 [ipv6]
 [<c0129358>] notifier_chain_register+0x44/0x4c
 [<c0257160>] register_netdevice_notifier+0x6c/0x6e
 [<e08a830c>] addrconf_init+0xf/0x81 [ipv6]
 [<e08a81c6>] inet6_init+0x13c/0x203 [ipv6]
 [<c0134ee1>] sys_init_module+0x17a/0x227
 [<c01060df>] syscall_call+0x7/0xb

preempt count: 04000002
. 2-level deep critical section nesting:
.. entry 1: ndisc_constructor+0x31/0x21a [ipv6] / (0x0) .. entry 2: print_traces+0x17/0x50 / (0x0)

IPv6 over IPv4 tunneling driver
apm: BIOS not found.
lp: driver loaded but no devices found

BUG: sleeping function called from invalid context ksoftirqd/0(2) at /home/thomas/work/LibeRTOS/work/2.6.9-rc4-mm1-VP-U4-LRT1/lib/rwsem-generic.c:313
in_atomic():1 [00000001], irqs_disabled():0
 [<c0119e85>] __might_sleep+0xba/0xc9
 [<c02bac00>] down_read+0x1b/0x1d1
 [<c0130cd8>] _rw_mutex_read_lock+0x13/0x22
 [<e09b6d36>] ndisc_constructor+0x3d/0x21a [ipv6]
 [<c025bf7f>] neigh_create+0x1dd/0x1e9
 [<c025bc38>] neigh_lookup+0x9e/0x103
 [<e09b1eb7>] ndisc_dst_alloc+0x130/0x13a [ipv6]
 [<e09b7b5d>] ndisc_send_rs+0x95/0x4bf [ipv6]
 [<e09a6d7f>] ip6_output+0x0/0x44 [ipv6]
 [<e09b56f4>] fib6_prune_clones+0x27/0x2b [ipv6]
 [<e09ada6b>] addrconf_dad_completed+0xa0/0xe9 [ipv6]
 [<e09ad90f>] addrconf_dad_timer+0x37/0xf3 [ipv6]
 [<c0118e4b>] __wake_up+0x59/0x85
 [<e09ad8d8>] addrconf_dad_timer+0x0/0xf3 [ipv6]
 [<c0125414>] run_timer_softirq+0x11f/0x2db
 [<c01216a9>] ___do_softirq+0x79/0xbc
 [<c01219be>] ksoftirqd+0x0/0xc8
 [<c0121774>] _do_softirq+0x17/0x19
 [<c0121a49>] ksoftirqd+0x8b/0xc8
 [<c0130129>] kthread+0xa5/0xab
 [<c0130084>] kthread+0x0/0xab
 [<c0104285>] kernel_thread_helper+0x5/0xb

preempt count: 00000002
. 2-level deep critical section nesting:
.. entry 1: ndisc_constructor+0x31/0x21a [ipv6] / (0x0) .. entry 2: print_traces+0x17/0x50 / (0x0)

Installing knfsd (copyright (C) 1996 [email protected]).
cs: IO port probe 0x0100-0x04ff: excluding 0x4d0-0x4d7
cs: IO port probe 0x0800-0x08ff: excluding 0x800-0x807
cs: IO port probe 0x0c00-0x0cff: clean.
cs: IO port probe 0x0a00-0x0aff: clean.
apm: BIOS not found.
eth0: no IPv6 routers present
apm: BIOS not found. /home/thomas/work/LibeRTOS/work/2.6.9-rc4-mm1-VP-U4-LRT1/drivers/usb/input/hid-input.c: event field not found /home/thomas/work/LibeRTOS/work/2.6.9-rc4-mm1-VP-U4-LRT1/drivers/usb/input/hid-input.c: event field not found

ok, does the patch below, ontop of -U7, fix them?

Ingo

@@ -83,6 +83,7 @@ extern spinlock_t inet_proto_lock;
 
 #if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
 extern struct inet6_protocol *inet6_protos[MAX_INET_PROTOS];
+extern rwlock_t inet6_proto_lock;
 #endif
 
 extern int	inet_add_protocol(struct net_protocol *prot, unsigned char num);

@@ -94,7 +94,7 @@ atomic_t inet6_sock_nr;
  * build a new socket.
  */
 static struct list_head inetsw6[SOCK_MAX];
-static spinlock_t inetsw6_lock = SPIN_LOCK_UNLOCKED;
+static rwlock_t inetsw6_lock = RW_LOCK_UNLOCKED;
 
 static void inet6_sock_destruct(struct sock *sk)
 {

@@ -127,7 +127,7 @@ static int inet6_create(struct socket *s
 
 	/* Look for the requested type/protocol pair. */
 	answer = NULL;
-	rcu_read_lock();
+	rcu_read_lock_read(&inetsw6_lock);
 	list_for_each_rcu(p, &inetsw6[sock->type]) {
 		answer = list_entry(p, struct inet_protosw, list);
 

@@ -162,7 +162,7 @@ static int inet6_create(struct socket *s
 	answer_prot = answer->prot;
 	answer_no_check = answer->no_check;
 	answer_flags = answer->flags;
-	rcu_read_unlock();
+	rcu_read_unlock_read(&inetsw6_lock);
 
 	BUG_TRAP(answer_prot->slab != NULL);
 

@@ -242,7 +242,7 @@ static int inet6_create(struct socket *s
 out:
 	return rc;
 out_rcu_unlock:
-	rcu_read_unlock();
+	rcu_read_unlock_read(&inetsw6_lock);
 	goto out;
 }
 

@@ -542,7 +542,7 @@ inet6_register_protosw(struct inet_proto
 	int protocol = p->protocol;
 	struct list_head *last_perm;
 
-	spin_lock_bh(&inetsw6_lock);
+	write_lock_bh(&inetsw6_lock);
 
 	if (p->type >= SOCK_MAX)
 		goto out_illegal;

@@ -573,7 +573,7 @@ inet6_register_protosw(struct inet_proto
 	 */
 	list_add_rcu(&p->list, last_perm);
 out:
-	spin_unlock_bh(&inetsw6_lock);
+	write_unlock_bh(&inetsw6_lock);
 	return;
 
 out_permanent:

@@ -596,9 +596,9 @@ inet6_unregister_protosw(struct inet_pro
 		       "Attempt to unregister permanent protocol %d.\n",
 		       p->protocol);
 	} else {
-		spin_lock_bh(&inetsw6_lock);
+		write_lock_bh(&inetsw6_lock);
 		list_del_rcu(&p->list);
-		spin_unlock_bh(&inetsw6_lock);
+		write_unlock_bh(&inetsw6_lock);
 
 		synchronize_net();
 	}

@@ -537,11 +537,11 @@ static void icmpv6_notify(struct sk_buff
 
 	hash = nexthdr & (MAX_INET_PROTOS - 1);
 
-	rcu_read_lock();
+	rcu_read_lock_read(&inet6_proto_lock);
 	ipprot = rcu_dereference(inet6_protos[hash]);
 	if (ipprot && ipprot->err_handler)
 		ipprot->err_handler(skb, NULL, type, code, inner_offset, info);
-	rcu_read_unlock();
+	rcu_read_unlock_read(&inet6_proto_lock);
 
 	read_lock(&raw_v6_lock);
 	if ((sk = sk_head(&raw_v6_htable[hash])) != NULL) {

@@ -156,7 +156,7 @@ static inline int ip6_input_finish(struc
 		skb->h.raw += (skb->h.raw[1]+1)<<3;
 	}
 
-	rcu_read_lock();
+	rcu_read_lock_read(&raw_v6_lock);
 resubmit:
 	if (!pskb_pull(skb, skb->h.raw - skb->data))
 		goto discard;

@@ -205,12 +205,12 @@ resubmit:
 			kfree_skb(skb);
 		}
 	}
-	rcu_read_unlock();
+	rcu_read_unlock_read(&raw_v6_lock);
 	return 0;
 
 discard:
 	IP6_INC_STATS_BH(IPSTATS_MIB_INDISCARDS);
-	rcu_read_unlock();
+	rcu_read_unlock_read(&raw_v6_lock);
 	kfree_skb(skb);
 	return 0;
 }

@@ -289,17 +289,17 @@ static int ndisc_constructor(struct neig
 	struct neigh_parms *parms;
 	int is_multicast = ipv6_addr_is_multicast(addr);
 
-	rcu_read_lock();
+	rcu_read_lock_read(&addrconf_lock);
 	in6_dev = in6_dev_get(dev);
 	if (in6_dev == NULL) {
-		rcu_read_unlock();
+		rcu_read_unlock_read(&addrconf_lock);
 		return -EINVAL;
 	}
 
 	parms = in6_dev->nd_parms;
 	__neigh_parms_put(neigh->parms);
 	neigh->parms = neigh_parms_clone(parms);
-	rcu_read_unlock();
+	rcu_read_unlock_read(&addrconf_lock);
 
 	neigh->type = is_multicast ? RTN_MULTICAST : RTN_UNICAST;
 	if (dev->hard_header == NULL) {

@@ -40,14 +40,14 @@
 #include <net/protocol.h>
 
 struct inet6_protocol *inet6_protos[MAX_INET_PROTOS];
-static spinlock_t inet6_proto_lock = SPIN_LOCK_UNLOCKED;
+rwlock_t inet6_proto_lock = RW_LOCK_UNLOCKED;
 
 
 int inet6_add_protocol(struct inet6_protocol *prot, unsigned char protocol)
 {
 	int ret, hash = protocol & (MAX_INET_PROTOS - 1);
 
-	spin_lock_bh(&inet6_proto_lock);
+	write_lock_bh(&inet6_proto_lock);
 
 	if (inet6_protos[hash]) {
 		ret = -1;

@@ -56,7 +56,7 @@ int inet6_add_protocol(struct inet6_prot
 		ret = 0;
 	}
 
-	spin_unlock_bh(&inet6_proto_lock);
+	write_unlock_bh(&inet6_proto_lock);
 
 	return ret;
 }

@@ -69,7 +69,7 @@ int inet6_del_protocol(struct inet6_prot
 {
 	int ret, hash = protocol & (MAX_INET_PROTOS - 1);
 
-	spin_lock_bh(&inet6_proto_lock);
+	write_lock_bh(&inet6_proto_lock);
 
 	if (inet6_protos[hash] != prot) {
 		ret = -1;

@@ -78,7 +78,7 @@ int inet6_del_protocol(struct inet6_prot
 		ret = 0;
 	}
 
-	spin_unlock_bh(&inet6_proto_lock);
+	write_unlock_bh(&inet6_proto_lock);
 
 	synchronize_net();
 

Yes, it does. Thanks.

tglx

[..]

I don't get any oopses or panics, but i can observer a rather interesting behaviour. When i enable the latency traces via

echo 1 > /proc/sys/kernel/trace_enabled

my machine starts to make little pauses of ca 3-4 secs. X "hangs" for this duration and so does aplay when playing a .wav file. "hangs" means that the X display seems to be locked. Interestingly enough all keystrokes i entered during the "hang" seem to arrive fine after the hang has ended. aplay experiences an xrun.

jackd OTOH is not affected (probably since it runs SCHED_FIFO). I can happily continue noodling with my guitar through jackd and jack-rack..

But besides that it runs fine here. I get some fairly long non preemptible critical sections reports though.

here's one (i snipped off quite a few in the middle to make the email smaller):

preemption latency trace v1.0.7 on 2.6.9-rc4-mm1-RT-U6
-------------------------------------------------------
latency: 1841 us, entries: 4000 (12990) | [VP:1 KP:1 SP:1 HP:1 #CPUS:1]

    -----------------
    | task: aplay/2160, uid:1000 nice:0 policy:0 rt_prio:0
    -----------------

=> started at: __schedule+0x3b/0x5d0 <c02a767b>
=> ended at: finish_task_switch+0x43/0xb0 <c0114ae3>
=======>
00000001 0.000ms (+0.000ms): __schedule (ksoftirqd) 00000001 0.000ms (+0.000ms): sched_clock (__schedule) 00000002 0.000ms (+0.000ms): deactivate_task (__schedule) 00000002 0.000ms (+0.000ms): dequeue_task (deactivate_task) 04000002 0.000ms (+0.000ms): __switch_to (__schedule) 04000002 0.001ms (+0.000ms): finish_task_switch (__schedule) 04000000 0.001ms (+0.000ms): schedule (down_write) 04000000 0.001ms (+0.000ms): __schedule (down_write) 04000001 0.001ms (+0.000ms): sched_clock (__schedule) 04000000 0.001ms (+0.000ms): schedule (down_write) 04000000 0.001ms (+0.000ms): __schedule (down_write) 04000001 0.002ms (+0.000ms): sched_clock (__schedule) 04000000 0.002ms (+0.000ms): schedule (down_write) 04000000 0.002ms (+0.000ms): __schedule (down_write) 04000001 0.002ms (+0.000ms): sched_clock (__schedule) 04000000 0.002ms (+0.000ms): schedule (down_write) 04000000 0.002ms (+0.000ms): __schedule (down_write) 04000001 0.003ms (+0.000ms): sched_clock (__schedule) 04000000 0.003ms (+0.000ms): schedule (down_write) 04000000 0.003ms (+0.000ms): __schedule (down_write) 04000001 0.003ms (+0.000ms): sched_clock (__schedule) 04000000 0.003ms (+0.000ms): schedule (down_write) 04000000 0.003ms (+0.000ms): __schedule (down_write) 04000001 0.003ms (+0.000ms): sched_clock (__schedule) 04000000 0.004ms (+0.000ms): schedule (down_write) 04000000 0.004ms (+0.000ms): __schedule (down_write) 04000001 0.004ms (+0.000ms): sched_clock (__schedule) 04000000 0.004ms (+0.000ms): schedule (down_write) 04000000 0.004ms (+0.000ms): __schedule (down_write) 04000001 0.004ms (+0.000ms): sched_clock (__schedule) 04000000 0.005ms (+0.000ms): schedule (down_write) 04000000 0.005ms (+0.000ms): __schedule (down_write) 04000001 0.005ms (+0.000ms): sched_clock (__schedule) 04000000 0.005ms (+0.000ms): schedule (down_write) 04000000 0.005ms (+0.000ms): __schedule (down_write) 04000001 0.005ms (+0.000ms): sched_clock (__schedule) 04000000 0.006ms (+0.000ms): schedule (down_write) 04000000 0.006ms (+0.000ms): __schedule (down_write) 04000001 0.006ms (+0.000ms): sched_clock (__schedule) 04000000 0.006ms (+0.000ms): schedule (down_write) 04000000 0.006ms (+0.000ms): __schedule (down_write) 04000001 0.006ms (+0.000ms): sched_clock (__schedule) 04000000 0.006ms (+0.000ms): schedule (down_write) 04000000 0.007ms (+0.000ms): __schedule (down_write) 04000001 0.007ms (+0.000ms): sched_clock (__schedule) 04000000 0.007ms (+0.000ms): schedule (down_write) 04000000 0.007ms (+0.000ms): __schedule (down_write) 04000001 0.007ms (+0.000ms): sched_clock (__schedule) 04000000 0.007ms (+0.000ms): schedule (down_write) 04000000 0.007ms (+0.000ms): __schedule (down_write) 04000001 0.008ms (+0.000ms): sched_clock (__schedule) 04000000 0.008ms (+0.000ms): schedule (down_write) 04000000 0.008ms (+0.000ms): __schedule (down_write) 04000001 0.008ms (+0.000ms): sched_clock (__schedule) 04000000 0.008ms (+0.000ms): schedule (down_write) 04000000 0.008ms (+0.000ms): __schedule (down_write) 04000001 0.009ms (+0.000ms): sched_clock (__schedule) 04000000 0.009ms (+0.000ms): schedule (down_write) 04000000 0.009ms (+0.000ms): __schedule (down_write) 04000001 0.009ms (+0.000ms): sched_clock (__schedule) 04000000 0.009ms (+0.000ms): schedule (down_write) 04000000 0.009ms (+0.000ms): __schedule (down_write) 04000001 0.009ms (+0.000ms): sched_clock (__schedule) 04000000 0.010ms (+0.000ms): schedule (down_write) 04000000 0.010ms (+0.000ms): __schedule (down_write) 04000001 0.010ms (+0.000ms): sched_clock (__schedule) 04000000 0.010ms (+0.000ms): schedule (down_write) 04000000 0.010ms (+0.000ms): __schedule (down_write) 04000001 0.010ms (+0.000ms): sched_clock (__schedule) 04000000 0.011ms (+0.000ms): schedule (down_write) 04000000 0.011ms (+0.000ms): __schedule (down_write) 04000001 0.011ms (+0.000ms): sched_clock (__schedule) 04000000 0.011ms (+0.000ms): schedule (down_write) 04000000 0.011ms (+0.000ms): __schedule (down_write) 04000001 0.011ms (+0.000ms): sched_clock (__schedule) 04000000 0.012ms (+0.000ms): schedule (down_write) 04000000 0.012ms (+0.000ms): __schedule (down_write) 04000001 0.012ms (+0.000ms): sched_clock (__schedule) 04000000 0.012ms (+0.000ms): schedule (down_write) 04000000 0.012ms (+0.000ms): __schedule (down_write) 04000001 0.012ms (+0.000ms): sched_clock (__schedule) 04000000 0.012ms (+0.000ms): schedule (down_write) 04000000 0.013ms (+0.000ms): __schedule (down_write) 04000001 0.013ms (+0.000ms): sched_clock (__schedule) 04000000 0.013ms (+0.000ms): schedule (down_write) 04000000 0.013ms (+0.000ms): __schedule (down_write) 04000001 0.013ms (+0.000ms): sched_clock (__schedule) 04000000 0.013ms (+0.000ms): schedule (down_write) 04000000 0.013ms (+0.000ms): __schedule (down_write) 04000001 0.014ms (+0.000ms): sched_clock (__schedule) 04000000 0.014ms (+0.000ms): schedule (down_write) 04000000 0.014ms (+0.000ms): __schedule (down_write) 04000001 0.014ms (+0.000ms): sched_clock (__schedule) 04000000 0.014ms (+0.000ms): schedule (down_write) 04000000 0.014ms (+0.000ms): __schedule (down_write) 04000001 0.014ms (+0.000ms): sched_clock (__schedule) 04000000 0.015ms (+0.000ms): schedule (down_write) 04000000 0.015ms (+0.000ms): __schedule (down_write) 04000001 0.015ms (+0.000ms): sched_clock (__schedule) 04000000 0.015ms (+0.000ms): schedule (down_write) 04000000 0.015ms (+0.000ms): __schedule (down_write) 04000001 0.015ms (+0.000ms): sched_clock (__schedule) 04000000 0.016ms (+0.000ms): schedule (down_write) 04000000 0.016ms (+0.000ms): __schedule (down_write) 04000001 0.016ms (+0.000ms): sched_clock (__schedule) 04000000 0.016ms (+0.000ms): schedule (down_write) 04000000 0.016ms (+0.000ms): __schedule (down_write) 04000001 0.016ms (+0.000ms): sched_clock (__schedule) 04000000 0.017ms (+0.000ms): schedule (down_write) 04000000 0.017ms (+0.000ms): __schedule (down_write) 04000001 0.017ms (+0.000ms): sched_clock (__schedule) 04000000 0.017ms (+0.000ms): schedule (down_write) 04000000 0.017ms (+0.000ms): __schedule (down_write) 04000001 0.017ms (+0.000ms): sched_clock (__schedule) 04000000 0.018ms (+0.000ms): schedule (down_write) 04000000 0.018ms (+0.000ms): __schedule (down_write) 04000001 0.018ms (+0.000ms): sched_clock (__schedule) 04000000 0.018ms (+0.000ms): schedule (down_write) 04000000 0.018ms (+0.000ms): __schedule (down_write) 04000001 0.018ms (+0.000ms): sched_clock (__schedule) 04000000 0.018ms (+0.000ms): schedule (down_write) 04000000 0.019ms (+0.000ms): __schedule (down_write) 04000001 0.019ms (+0.000ms): sched_clock (__schedule) 04000000 0.019ms (+0.000ms): schedule (down_write) 04000000 0.019ms (+0.000ms): __schedule (down_write) 04000001 0.019ms (+0.000ms): sched_clock (__schedule) 04000000 0.019ms (+0.000ms): schedule (down_write) 04000000 0.019ms (+0.000ms): __schedule (down_write) 04000001 0.020ms (+0.000ms): sched_clock (__schedule) 04000000 0.020ms (+0.000ms): schedule (down_write) 04000000 0.020ms (+0.000ms): __schedule (down_write) 04000001 0.020ms (+0.000ms): sched_clock (__schedule) 04000000 0.020ms (+0.000ms): schedule (down_write) 04000000 0.020ms (+0.000ms): __schedule (down_write) 04000001 0.020ms (+0.000ms): sched_clock (__schedule) 04000000 0.021ms (+0.000ms): schedule (down_write) 04000000 0.021ms (+0.000ms): __schedule (down_write) 04000001 0.021ms (+0.000ms): sched_clock (__schedule) 04000000 0.021ms (+0.000ms): schedule (down_write) 04000000 0.021ms (+0.000ms): __schedule (down_write) 04000001 0.021ms (+0.000ms): sched_clock (__schedule) 04000000 0.022ms (+0.000ms): schedule (down_write) 04000000 0.022ms (+0.000ms): __schedule (down_write) 04000001 0.022ms (+0.000ms): sched_clock (__schedule) 04000000 0.022ms (+0.000ms): schedule (down_write) 04000000 0.022ms (+0.000ms): __schedule (down_write) 04000001 0.022ms (+0.000ms): sched_clock (__schedule) 04000000 0.023ms (+0.000ms): schedule (down_write) 04000000 0.023ms (+0.000ms): __schedule (down_write) 04000001 0.023ms (+0.000ms): sched_clock (__schedule) 04000000 0.023ms (+0.000ms): schedule (down_write) 04000000 0.023ms (+0.000ms): __schedule (down_write) 04000001 0.023ms (+0.000ms): sched_clock (__schedule) 04000000 0.023ms (+0.000ms): schedule (down_write) 04000000 0.024ms (+0.000ms): __schedule (down_write) 04000001 0.024ms (+0.000ms): sched_clock (__schedule) 04000000 0.024ms (+0.000ms): schedule (down_write) 04000000 0.024ms (+0.000ms): __schedule (down_write) 04000001 0.024ms (+0.000ms): sched_clock (__schedule) 04000000 0.024ms (+0.000ms): schedule (down_write) 04000000 0.025ms (+0.000ms): __schedule (down_write) 04000001 0.025ms (+0.000ms): sched_clock (__schedule) 04000000 0.025ms (+0.000ms): schedule (down_write) 04000000 0.025ms (+0.000ms): __schedule (down_write) 04000001 0.025ms (+0.000ms): sched_clock (__schedule) 04000000 0.025ms (+0.000ms): schedule (down_write) 04000000 0.025ms (+0.000ms): __schedule (down_write) 04000001 0.026ms (+0.000ms): sched_clock (__schedule) 04000000 0.026ms (+0.000ms): schedule (down_write) 04000000 0.026ms (+0.000ms): __schedule (down_write) 04000001 0.026ms (+0.000ms): sched_clock (__schedule) 04000000 0.026ms (+0.000ms): schedule (down_write) 04000000 0.026ms (+0.000ms): __schedule (down_write) 04000001 0.026ms (+0.000ms): sched_clock (__schedule) 04000000 0.027ms (+0.000ms): schedule (down_write) 04000000 0.027ms (+0.000ms): __schedule (down_write) 04000001 0.027ms (+0.000ms): sched_clock (__schedule) 04000000 0.027ms (+0.000ms): schedule (down_write) 04000000 0.027ms (+0.000ms): __schedule (down_write) 04000001 0.027ms (+0.000ms): sched_clock (__schedule) 04000000 0.028ms (+0.000ms): schedule (down_write) 04000000 0.028ms (+0.000ms): __schedule (down_write) 04000001 0.028ms (+0.000ms): sched_clock (__schedule) 04000000 0.028ms (+0.000ms): schedule (down_write) 04000000 0.028ms (+0.000ms): __schedule (down_write) 04000001 0.028ms (+0.000ms): sched_clock (__schedule) 04000000 0.029ms (+0.000ms): schedule (down_write) 04000000 0.029ms (+0.000ms): __schedule (down_write) 04000001 0.029ms (+0.000ms): sched_clock (__schedule) 04000000 0.029ms (+0.000ms): schedule (down_write) 04000000 0.029ms (+0.000ms): __schedule (down_write) 04000001 0.029ms (+0.000ms): sched_clock (__schedule) 04000000 0.029ms (+0.000ms): schedule (down_write) 04000000 0.030ms (+0.000ms): __schedule (down_write) 04000001 0.030ms (+0.000ms): sched_clock (__schedule) 04000000 0.030ms (+0.000ms): schedule (down_write) 04000000 0.030ms (+0.000ms): __schedule (down_write) 04000001 0.030ms (+0.000ms): sched_clock (__schedule) 04000000 0.030ms (+0.000ms): schedule (down_write) 04000000 0.030ms (+0.000ms): __schedule (down_write) 04000001 0.031ms (+0.000ms): sched_clock (__schedule) 04000000 0.031ms (+0.000ms): schedule (down_write) 04000000 0.031ms (+0.000ms): __schedule (down_write) 04000001 0.031ms (+0.000ms): sched_clock (__schedule) 04000000 0.031ms (+0.000ms): schedule (down_write) 04000000 0.031ms (+0.000ms): __schedule (down_write) 04000001 0.031ms (+0.000ms): sched_clock (__schedule) 04000000 0.032ms (+0.000ms): schedule (down_write) 04000000 0.032ms (+0.000ms): __schedule (down_write) 04000001 0.032ms (+0.000ms): sched_clock (__schedule) 04000000 0.032ms (+0.000ms): schedule (down_write) 04000000 0.032ms (+0.000ms): __schedule (down_write) 04000001 0.032ms (+0.000ms): sched_clock (__schedule) 04000000 0.033ms (+0.000ms): schedule (down_write) 04000000 0.033ms (+0.000ms): __schedule (down_write) 04000001 0.033ms (+0.000ms): sched_clock (__schedule) 04000000 0.033ms (+0.000ms): schedule (down_write) 04000000 0.033ms (+0.000ms): __schedule (down_write) 04000001 0.033ms (+0.000ms): sched_clock (__schedule) 04000000 0.034ms (+0.000ms): schedule (down_write) 04000000 0.034ms (+0.000ms): __schedule (down_write) 04000001 0.034ms (+0.000ms): sched_clock (__schedule) 04000000 0.034ms (+0.000ms): schedule (down_write) 04000000 0.034ms (+0.000ms): __schedule (down_write) 04000001 0.034ms (+0.000ms): sched_clock (__schedule) 04000000 0.035ms (+0.000ms): schedule (down_write) 04000000 0.035ms (+0.000ms): __schedule (down_write) 04000001 0.035ms (+0.000ms): sched_clock (__schedule) 04000000 0.035ms (+0.000ms): schedule (down_write) 04000000 0.035ms (+0.000ms): __schedule (down_write) 04000001 0.035ms (+0.000ms): sched_clock (__schedule) 04000000 0.035ms (+0.000ms): schedule (down_write) 04000000 0.036ms (+0.000ms): __schedule (down_write)

[...many many more of similar ones...]

04000000 0.554ms (+0.000ms): __schedule (down_write) 04000001 0.554ms (+0.000ms): sched_clock (__schedule) 04000000 0.554ms (+0.000ms): schedule (down_write) 04000000 0.554ms (+0.000ms): __schedule (down_write) 04000001 0.554ms (+0.000ms): sched_clock (__schedule) 04000000 0.555ms (+0.000ms): schedule (down_write) 04000000 0.555ms (+0.000ms): __schedule (down_write) 04000001 0.555ms (+0.000ms): sched_clock (__schedule) 04000000 0.555ms (+0.000ms): schedule (down_write) 04000000 0.555ms (+0.000ms): __schedule (down_write) 04000001 0.555ms (+0.000ms): sched_clock (__schedule) 04000000 0.555ms (+0.000ms): schedule (down_write) 04000000 0.556ms (+0.000ms): __schedule (down_write) 04000001 0.556ms (+0.000ms): sched_clock (__schedule) 04000000 0.556ms (+0.000ms): schedule (down_write) 04000000 0.556ms (+0.000ms): __schedule (down_write) 04000001 0.556ms (+0.000ms): sched_clock (__schedule) 04000000 0.556ms (+0.000ms): schedule (down_write) 04000000 0.556ms (+0.000ms): __schedule (down_write) 04000001 0.557ms (+0.000ms): sched_clock (__schedule) 04000000 0.557ms (+0.000ms): schedule (down_write) 04000000 0.557ms (+0.000ms): __schedule (down_write) 04000001 0.557ms (+0.000ms): sched_clock (__schedule) 04000000 0.557ms (+0.000ms): schedule (down_write) 04000000 0.557ms (+0.000ms): __schedule (down_write) 04000001 0.557ms (+0.000ms): sched_clock (__schedule) 04000000 0.558ms (+0.000ms): schedule (down_write) 04000000 0.558ms (+0.000ms): __schedule (down_write) 04000001 0.558ms (+0.000ms): sched_clock (__schedule) 04000000 0.558ms (+0.000ms): schedule (down_write) 04000000 0.558ms (+0.000ms): __schedule (down_write) 04000001 0.558ms (+0.000ms): sched_clock (__schedule) 04000000 0.559ms (+0.000ms): schedule (down_write) 04000000 0.559ms (+0.000ms): __schedule (down_write) 04000001 0.559ms (+0.000ms): sched_clock (__schedule) 04000000 0.559ms (+0.000ms): schedule (down_write) 04000000 0.559ms (+0.000ms): __schedule (down_write) 04000001 0.559ms (+0.000ms): sched_clock (__schedule) 04000000 0.560ms (+0.000ms): schedule (down_write) 04000000 0.560ms (+0.000ms): __schedule (down_write) 04000001 0.560ms (+0.000ms): sched_clock (__schedule) 04000000 0.560ms (+0.000ms): schedule (down_write) 04000000 0.560ms (+0.000ms): __schedule (down_write) 04000001 0.560ms (+0.000ms): sched_clock (__schedule) 04000000 0.561ms (+0.000ms): schedule (down_write) 04000000 0.561ms (+0.000ms): __schedule (down_write) 04000001 0.561ms (+0.000ms): sched_clock (__schedule) 04000000 0.561ms (+0.000ms): schedule (down_write) 04000000 0.561ms (+0.000ms): __schedule (down_write) 04000001 0.561ms (+0.000ms): sched_clock (__schedule) 04000000 0.561ms (+0.000ms): schedule (down_write) 04000000 0.562ms (+0.000ms): __schedule (down_write) 04000001 0.562ms (+0.000ms): sched_clock (__schedule) 04000000 0.562ms (+0.000ms): schedule (down_write) 04000000 0.562ms (+0.000ms): __schedule (down_write) 04000001 0.562ms (+0.000ms): sched_clock (__schedule) 04000000 0.562ms (+0.000ms): schedule (down_write) 04000000 0.562ms (+0.000ms): __schedule (down_write) 04000001 0.563ms (+0.000ms): sched_clock (__schedule) 04000000 0.563ms (+0.000ms): schedule (down_write) 04000000 0.563ms (+0.000ms): __schedule (down_write) 04000001 0.563ms (+0.000ms): sched_clock (__schedule) 04000000 0.563ms (+0.000ms): schedule (down_write) 04000000 0.563ms (+0.000ms): __schedule (down_write) 04000001 0.563ms (+0.000ms): sched_clock (__schedule) 04000000 0.564ms (+0.000ms): schedule (down_write) 04000000 0.564ms (+0.000ms): __schedule (down_write) 04000001 0.564ms (+0.000ms): sched_clock (__schedule) 04000000 0.564ms (+0.000ms): schedule (down_write) 04000000 0.564ms (+0.000ms): __schedule (down_write) 04000001 0.564ms (+0.000ms): sched_clock (__schedule) 04000000 0.565ms (+0.000ms): schedule (down_write) 04000000 0.565ms (+0.000ms): __schedule (down_write) 04000001 0.565ms (+0.000ms): sched_clock (__schedule) 04000000 0.565ms (+0.000ms): schedule (down_write) 04000000 0.565ms (+0.000ms): __schedule (down_write) 04000001 0.565ms (+0.000ms): sched_clock (__schedule) 04000000 0.566ms (+0.000ms): schedule (down_write) 04000000 0.566ms (+0.000ms): __schedule (down_write) 04000001 0.566ms (+0.000ms): sched_clock (__schedule) 04000000 0.566ms (+0.000ms): schedule (down_write) 04000000 0.566ms (+0.000ms): __schedule (down_write) 04000001 0.566ms (+0.000ms): sched_clock (__schedule) 04000000 0.567ms (+0.000ms): schedule (down_write) 04000000 0.567ms (+0.000ms): __schedule (down_write) 04000001 0.567ms (+0.000ms): sched_clock (__schedule) 04000000 0.567ms (+0.000ms): schedule (down_write) 04000000 0.567ms (+0.000ms): __schedule (down_write) 04000001 0.567ms (+0.000ms): sched_clock (__schedule) 04000000 0.567ms (+0.000ms): schedule (down_write) 04000000 0.568ms (+0.000ms): __schedule (down_write) 04000001 0.568ms (+0.000ms): sched_clock (__schedule) 04000000 0.568ms (+0.000ms): schedule (down_write) 04000000 0.568ms (+0.000ms): __schedule (down_write) 04000001 0.568ms (+0.000ms): sched_clock (__schedule) 04000000 0.568ms (+0.000ms): schedule (down_write) 04000000 0.568ms (+0.000ms): __schedule (down_write) 04000001 0.569ms (+0.000ms): sched_clock (__schedule) 04000000 0.569ms (+0.000ms): schedule (down_write) 04000000 0.569ms (+0.000ms): __schedule (down_write) 04000001 0.569ms (+0.000ms): sched_clock (__schedule) 04000000 0.569ms (+0.000ms): schedule (down_write) 04000000 0.569ms (+0.000ms): __schedule (down_write) 04000001 0.569ms (+0.000ms): sched_clock (__schedule) 04000000 0.570ms (+0.000ms): schedule (down_write) 04000000 0.570ms (+0.000ms): __schedule (down_write) 04000001 0.570ms (+0.000ms): sched_clock (__schedule) 04000000 0.570ms (+0.000ms): schedule (down_write) 04000000 0.570ms (+0.000ms): __schedule (down_write) 04000001 0.570ms (+0.000ms): sched_clock (__schedule) 04000000 0.571ms (+0.000ms): schedule (down_write) 04000000 0.571ms (+0.000ms): __schedule (down_write) 04000001 0.571ms (+0.000ms): sched_clock (__schedule) 04000000 0.571ms (+0.000ms): schedule (down_write) 04000000 0.571ms (+0.000ms): __schedule (down_write) 04000001 0.571ms (+0.000ms): sched_clock (__schedule) 04000000 0.572ms (+0.000ms): schedule (down_write) 04000000 0.572ms (+0.000ms): __schedule (down_write) 04000001 0.572ms (+0.000ms): sched_clock (__schedule) 04000000 0.572ms (+0.000ms): schedule (down_write) 04000000 0.572ms (+0.000ms): __schedule (down_write) 04000001 0.572ms (+0.000ms): sched_clock (__schedule) 04000000 0.572ms (+0.000ms): schedule (down_write) 04000000 0.573ms (+0.000ms): __schedule (down_write) 04000001 0.573ms (+0.000ms): sched_clock (__schedule) 04000000 0.573ms (+0.000ms): schedule (down_write) 04000000 0.573ms (+0.000ms): __schedule (down_write) 04000001 0.573ms (+0.000ms): sched_clock (__schedule) 04000000 0.573ms (+0.000ms): schedule (down_write) 04000000 0.574ms (+0.000ms): __schedule (down_write) 04000001 0.574ms (+0.000ms): sched_clock (__schedule) 04000000 0.574ms (+0.000ms): schedule (down_write) 04000000 0.574ms (+0.000ms): __schedule (down_write) 04000001 0.574ms (+0.000ms): sched_clock (__schedule) 04000000 0.574ms (+0.000ms): schedule (down_write) 04000000 0.574ms (+0.000ms): __schedule (down_write) 04000001 0.575ms (+0.000ms): sched_clock (__schedule) 04000000 0.575ms (+0.000ms): schedule (down_write) 04000000 0.575ms (+0.000ms): __schedule (down_write) 04000001 0.575ms (+0.000ms): sched_clock (__schedule) 04000000 0.575ms (+0.000ms): schedule (down_write) 04000000 0.575ms (+0.000ms): __schedule (down_write) 04000001 0.575ms (+0.000ms): sched_clock (__schedule) 04000000 0.576ms (+0.000ms): schedule (down_write) 04000000 0.576ms (+0.000ms): __schedule (down_write) 04000001 0.576ms (+0.000ms): sched_clock (__schedule) 04000000 0.576ms (+0.000ms): schedule (down_write) 04000000 0.576ms (+0.000ms): __schedule (down_write) 04000001 0.576ms (+0.000ms): sched_clock (__schedule) 04000000 0.577ms (+0.000ms): schedule (down_write) 04000000 0.577ms (+0.000ms): __schedule (down_write) 04000001 0.577ms (+0.000ms): sched_clock (__schedule) 04000000 0.577ms (+0.000ms): schedule (down_write) 04000000 0.577ms (+0.000ms): __schedule (down_write) 04000001 0.577ms (+0.000ms): sched_clock (__schedule) 04000000 0.578ms (+0.000ms): schedule (down_write) 04000000 0.578ms (+0.000ms): __schedule (down_write) 04000001 0.578ms (+0.000ms): sched_clock (__schedule) 04000000 0.578ms (+0.000ms): schedule (down_write) 04000000 0.578ms (+0.000ms): __schedule (down_write) 04000001 0.578ms (+0.000ms): sched_clock (__schedule) 04000000 0.578ms (+0.000ms): schedule (down_write) 04000000 0.579ms (+0.000ms): __schedule (down_write) 04000001 0.579ms (+0.000ms): sched_clock (__schedule) 04000000 0.579ms (+0.000ms): schedule (down_write) 04000000 0.579ms (+0.000ms): __schedule (down_write) 04000001 0.579ms (+0.000ms): sched_clock (__schedule) 04000000 0.579ms (+0.000ms): schedule (down_write) 04000000 0.579ms (+0.000ms): __schedule (down_write) 04000001 0.580ms (+0.000ms): sched_clock (__schedule) 04000000 0.580ms (+0.000ms): schedule (down_write) 04000000 0.580ms (+0.000ms): __schedule (down_write) 04000001 0.580ms (+0.000ms): sched_clock (__schedule) 04000000 0.580ms (+0.000ms): schedule (down_write) 04000000 0.580ms (+0.000ms): __schedule (down_write) 04000001 0.581ms (+0.000ms): sched_clock (__schedule) 04000000 0.581ms (+0.000ms): schedule (down_write) 04000000 0.581ms (+0.000ms): __schedule (down_write) 04000001 0.581ms (+0.000ms): sched_clock (__schedule) 04000000 0.581ms (+0.000ms): schedule (down_write) 04000000 0.581ms (+0.000ms): __schedule (down_write) 04000001 0.581ms (+0.000ms): sched_clock (__schedule) 04000000 0.582ms (+0.000ms): schedule (down_write) 04000000 0.582ms (+0.000ms): __schedule (down_write) 04000001 0.582ms (+0.000ms): sched_clock (__schedule) 04000000 0.582ms (+0.000ms): schedule (down_write) 04000000 0.582ms (+0.000ms): __schedule (down_write) 04000001 0.582ms (+0.000ms): sched_clock (__schedule) 04000000 0.583ms (+0.000ms): schedule (down_write) 04000000 0.583ms (+0.000ms): __schedule (down_write) 04000001 0.583ms (+0.000ms): sched_clock (__schedule) 04000000 0.583ms (+0.000ms): schedule (down_write) 04000000 0.583ms (+0.000ms): __schedule (down_write) 04000001 0.583ms (+0.000ms): sched_clock (__schedule) 04000000 0.584ms (+0.000ms): schedule (down_write) 04000000 0.584ms (+0.000ms): __schedule (down_write) 04000001 0.584ms (+0.000ms): sched_clock (__schedule) 04000000 0.584ms (+0.000ms): schedule (down_write) 04000000 0.584ms (+0.000ms): __schedule (down_write) 04000001 0.584ms (+0.000ms): sched_clock (__schedule) 04000000 0.584ms (+0.000ms): schedule (down_write) 04000000 0.585ms (+0.000ms): __schedule (down_write) 04000001 0.585ms (+0.000ms): sched_clock (__schedule) 04000000 0.585ms (+0.000ms): schedule (down_write) 04000000 0.585ms (+0.000ms): __schedule (down_write) 04000001 0.585ms (+0.000ms): sched_clock (__schedule) 04000000 0.585ms (+0.000ms): schedule (down_write) 04000000 0.585ms (+0.000ms): __schedule (down_write) 04000001 0.586ms (+0.000ms): sched_clock (__schedule) 04000000 0.586ms (+0.000ms): schedule (down_write) 04000000 0.586ms (+0.000ms): __schedule (down_write) 04000001 0.586ms (+0.000ms): sched_clock (__schedule) 04000000 0.586ms (+0.000ms): schedule (down_write) 04000000 0.586ms (+0.000ms): __schedule (down_write) 04000001 0.586ms (+0.000ms): sched_clock (__schedule) 04000000 0.587ms (+0.000ms): schedule (down_write) 04000000 0.587ms (+0.000ms): __schedule (down_write) 04000001 0.587ms (+0.000ms): sched_clock (__schedule) 04000000 0.587ms (+0.000ms): schedule (down_write) 04000000 0.587ms (+0.000ms): __schedule (down_write) 04000001 0.587ms (+0.000ms): sched_clock (__schedule) 04000000 0.588ms (+0.000ms): schedule (down_write) 04000000 0.588ms (+0.000ms): __schedule (down_write) 04000001 0.588ms (+0.000ms): sched_clock (__schedule) 04000000 0.588ms (+0.000ms): schedule (down_write) 04000000 0.588ms (+0.000ms): __schedule (down_write) 04000001 0.588ms (+0.000ms): sched_clock (__schedule) 04000000 0.589ms (+0.000ms): schedule (down_write) 04000000 0.589ms (+0.000ms): __schedule (down_write) 04000001 0.589ms (+0.000ms): sched_clock (__schedule) 04000000 0.589ms (+0.000ms): schedule (down_write) 04000000 0.589ms (+0.000ms): __schedule (down_write) 04000001 0.589ms (+0.000ms): sched_clock (__schedule) 04000000 0.590ms (+0.000ms): schedule (down_write) 04000000 0.590ms (+0.000ms): __schedule (down_write) 04000001 0.590ms (+0.000ms): sched_clock (__schedule) 04000000 0.590ms (+0.000ms): schedule (down_write) 04000000 0.590ms (+0.000ms): __schedule (down_write) 04000001 0.590ms (+0.000ms): sched_clock (__schedule) 04000000 0.590ms (+0.000ms): schedule (down_write) 04000000 0.591ms (+0.000ms): __schedule (down_write) 04000001 0.591ms (+0.000ms): sched_clock (__schedule) 04000000 0.591ms (+0.000ms): schedule (down_write) 04000000 0.591ms (+0.000ms): __schedule (down_write) 04000001 0.591ms (+0.000ms): sched_clock (__schedule) 04000000 0.591ms (+0.000ms): schedule (down_write) 04000000 0.591ms (+0.000ms): __schedule (down_write) 04000001 0.592ms (+0.000ms): sched_clock (__schedule) 04000000 0.592ms (+0.000ms): schedule (down_write) 04000000 0.592ms (+0.000ms): __schedule (down_write) 04000001 0.592ms (+0.000ms): sched_clock (__schedule) 04000000 0.592ms (+0.000ms): schedule (down_write) 04000000 0.592ms (+0.000ms): __schedule (down_write) 04000001 0.592ms (+0.000ms): sched_clock (__schedule) 04000000 0.593ms (+0.000ms): schedule (down_write) 04000000 0.593ms (+0.000ms): __schedule (down_write) 04000001 0.593ms (+0.000ms): sched_clock (__schedule) 04000000 0.593ms (+0.000ms): schedule (down_write) 04000000 0.593ms (+0.000ms): __schedule (down_write) 04000001 0.593ms (+0.000ms): sched_clock (__schedule) 04000000 0.594ms (+0.000ms): schedule (down_write) 04000000 0.594ms (+0.000ms): __schedule (down_write) 04000001 0.594ms (+0.000ms): sched_clock (__schedule) 04000000 0.594ms (+0.000ms): schedule (down_write) 04000000 0.594ms (+0.000ms): __schedule (down_write) 04000001 0.594ms (+0.000ms): sched_clock (__schedule) 04000000 0.595ms (+0.000ms): schedule (down_write) 04000000 0.595ms (+0.000ms): __schedule (down_write) 04000001 0.595ms (+0.000ms): sched_clock (__schedule) 04000000 0.595ms (+0.000ms): schedule (down_write) 04000000 0.595ms (+0.000ms): __schedule (down_write) 04000001 0.595ms (+0.000ms): sched_clock (__schedule) 04000000 0.596ms (+0.000ms): schedule (down_write) 04000000 0.596ms (+0.000ms): __schedule (down_write) 04000001 0.596ms (+0.000ms): sched_clock (__schedule) 04000000 0.596ms (+0.000ms): schedule (down_write) 04000000 0.596ms (+0.000ms): __schedule (down_write) 04000001 0.596ms (+0.000ms): sched_clock (__schedule) 04000000 0.596ms (+0.000ms): schedule (down_write) 04000000 0.597ms (+0.000ms): __schedule (down_write) 04000001 0.597ms (+0.000ms): sched_clock (__schedule) 04000000 0.597ms (+0.000ms): schedule (down_write) 04000000 0.597ms (+0.000ms): __schedule (down_write) 04000001 0.597ms (+0.000ms): sched_clock (__schedule) 04000000 0.597ms (+0.000ms): schedule (down_write) 04000000 0.597ms (+0.000ms): __schedule (down_write) 04000001 0.598ms (+0.000ms): sched_clock (__schedule) 04000000 0.598ms (+0.000ms): schedule (down_write) 04000000 0.598ms (+0.000ms): __schedule (down_write) 04000001 0.598ms (+0.000ms): sched_clock (__schedule) 04000000 0.598ms (+0.000ms): schedule (down_write) 04000000 0.598ms (+0.000ms): __schedule (down_write) 04000001 0.598ms (+0.000ms): sched_clock (__schedule) 04000000 0.599ms (+0.000ms): schedule (down_write) 04000000 0.599ms (+0.000ms): __schedule (down_write) 04000001 0.599ms (+0.000ms): sched_clock (__schedule) 04000000 0.599ms (+0.000ms): schedule (down_write) 04000000 0.599ms (+0.000ms): __schedule (down_write) 04000001 0.599ms (+0.000ms): sched_clock (__schedule) 04000000 0.600ms (+0.000ms): schedule (down_write) 04000000 0.600ms (+0.000ms): __schedule (down_write) 04000001 0.600ms (+0.000ms): sched_clock (__schedule) 04000000 0.600ms (+0.000ms): schedule (down_write) 04000000 0.600ms (+0.000ms): __schedule (down_write) 04000001 0.600ms (+0.000ms): sched_clock (__schedule) 04000000 0.601ms (+0.000ms): schedule (down_write) 04000000 0.601ms (+0.000ms): __schedule (down_write) 04000001 0.601ms (+0.000ms): sched_clock (__schedule) 04000000 0.601ms (+0.000ms): schedule (down_write) 04000000 0.601ms (+0.000ms): __schedule (down_write) 04000001 0.601ms (+0.000ms): sched_clock (__schedule) 04000000 0.601ms (+0.000ms): schedule (down_write) 04000000 0.602ms (+0.000ms): __schedule (down_write) 04000001 0.602ms (+0.000ms): sched_clock (__schedule) 04000000 0.602ms (+0.000ms): schedule (down_write) 04000000 0.602ms (+0.000ms): __schedule (down_write) 04000001 0.602ms (+0.000ms): sched_clock (__schedule) 04000000 0.602ms (+0.000ms): schedule (down_write) 04000000 0.602ms (+0.000ms): __schedule (down_write) 04000001 0.603ms (+0.000ms): sched_clock (__schedule) 04000000 0.603ms (+0.000ms): schedule (down_write) 04000000 0.603ms (+0.000ms): __schedule (down_write) 04000001 0.603ms (+0.000ms): sched_clock (__schedule) 04000000 0.603ms (+0.000ms): schedule (down_write) 04000000 0.603ms (+0.000ms): __schedule (down_write) 04000001 0.604ms (+0.000ms): sched_clock (__schedule) 04000000 0.604ms (+0.000ms): schedule (down_write) 04000000 0.604ms (+0.000ms): __schedule (down_write) 04000001 0.604ms (+0.000ms): sched_clock (__schedule) 04000000 0.604ms (+0.000ms): schedule (down_write) 04000000 0.604ms (+0.000ms): __schedule (down_write) 04000001 0.604ms (+0.000ms): sched_clock (__schedule) 04000000 0.605ms (+0.000ms): schedule (down_write) 04000000 0.605ms (+0.000ms): __schedule (down_write) 04000001 0.605ms (+0.000ms): sched_clock (__schedule) 04000000 0.605ms (+0.000ms): schedule (down_write) 04000000 0.605ms (+0.000ms): __schedule (down_write) 04000001 0.605ms (+0.000ms): sched_clock (__schedule) 04000000 0.606ms (+0.000ms): schedule (down_write) 04000000 0.606ms (+0.000ms): __schedule (down_write) 04000001 0.606ms (+0.000ms): sched_clock (__schedule) 04000000 0.606ms (+0.000ms): schedule (down_write) 04000000 0.606ms (+0.000ms): __schedule (down_write) 04000001 0.606ms (+0.000ms): sched_clock (__schedule) 04000000 0.607ms (+0.000ms): schedule (down_write) 04000000 0.607ms (+0.000ms): __schedule (down_write) 04000001 0.607ms (+0.000ms): sched_clock (__schedule) 04000000 0.607ms (+0.000ms): schedule (down_write) 04000000 0.607ms (+0.000ms): __schedule (down_write) 04000001 0.607ms (+0.000ms): sched_clock (__schedule) 04000000 0.607ms (+0.000ms): schedule (down_write) 04000000 0.608ms (+0.000ms): __schedule (down_write) 04000001 0.608ms (+0.000ms): sched_clock (__schedule) 04000000 0.608ms (+0.000ms): schedule (down_write) 04000000 0.608ms (+0.000ms): __schedule (down_write) 04000001 0.608ms (+0.000ms): sched_clock (__schedule) 04000000 0.608ms (+0.000ms): schedule (down_write) 04000000 0.608ms (+0.000ms): __schedule (down_write) 04000001 0.609ms (+0.000ms): sched_clock (__schedule) 04000000 0.609ms (+0.000ms): schedule (down_write) 04000000 0.609ms (+0.000ms): __schedule (down_write) 04000001 0.609ms (+0.000ms): sched_clock (__schedule) 04000000 0.609ms (+0.000ms): schedule (down_write) 04000000 0.609ms (+0.000ms): __schedule (down_write) 04000001 0.610ms (+0.000ms): sched_clock (__schedule) 04000000 0.610ms (+0.000ms): schedule (down_write) 04000000 0.610ms (+0.000ms): __schedule (down_write) 04000001 0.610ms (+0.000ms): sched_clock (__schedule) 04000000 0.610ms (+0.000ms): schedule (down_write) 04000000 0.610ms (+0.000ms): __schedule (down_write) 04000001 0.610ms (+0.000ms): sched_clock (__schedule) 04000000 0.611ms (+0.000ms): schedule (down_write) 04000000 0.611ms (+0.000ms): __schedule (down_write) 04000001 0.611ms (+0.000ms): sched_clock (__schedule) 04000000 0.611ms (+0.000ms): schedule (down_write) 04000000 0.611ms (+0.000ms): __schedule (down_write) 04000001 0.611ms (+0.000ms): sched_clock (__schedule) 04000000 0.612ms (+0.000ms): schedule (down_write) 04000000 0.612ms (+0.000ms): __schedule (down_write) 04000001 0.612ms (+0.000ms): sched_clock (__schedule) 04000000 0.612ms (+0.000ms): schedule (down_write) 04000000 0.612ms (+0.000ms): __schedule (down_write) 04000001 0.612ms (+0.000ms): sched_clock (__schedule) 04000000 0.613ms (+0.000ms): schedule (down_write) 04000000 0.613ms (+0.000ms): __schedule (down_write) 04000001 0.613ms (+0.000ms): sched_clock (__schedule) 04000000 0.613ms (+0.000ms): schedule (down_write) 04000000 0.613ms (+0.000ms): __schedule (down_write) 04000001 0.613ms (+0.000ms): sched_clock (__schedule) 04000000 0.613ms (+1168210.574ms): schedule (down_write)

mango:~# uname -a
Linux mango.fruits.de 2.6.9-rc4-mm1-RT-U6 #1 Tue Oct 19 17:59:48 CEST 2004 i686 GNU/Linux

mango:~# cat /proc/cpuinfo 
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 6
model           : 4
model name      : AMD Athlon(tm) Processor
stepping        : 2
cpu MHz         : 1195.144
cache size      : 256 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 mmx fxsr syscall mmxext 3dnowext 3dnow
bogomips        : 2359.29

#
# Automatically generated make config: don't edit # Linux kernel version: 2.6.9-rc4-mm1-RT-U6
# Tue Oct 19 17:39:11 2004
#
CONFIG_X86=y
CONFIG_MMU=y
CONFIG_UID16=y
CONFIG_GENERIC_ISA_DMA=y CONFIG_GENERIC_IOMAP=y

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y
CONFIG_CLEAN_COMPILE=y
CONFIG_BROKEN_ON_SMP=y

#
# General setup
#
CONFIG_LOCALVERSION=""
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
# CONFIG_BSD_PROCESS_ACCT_V3 is not set
CONFIG_SYSCTL=y
# CONFIG_AUDIT is not set
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_HOTPLUG is not set
CONFIG_KOBJECT_UEVENT=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
# CONFIG_EMBEDDED is not set
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SHMEM=y
# CONFIG_TINY_SHMEM is not set

#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set CONFIG_OBSOLETE_MODPARM=y CONFIG_MODVERSIONS=y
# CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_KMOD=y

#
# Processor type and features
#
CONFIG_X86_PC=y
# CONFIG_X86_ELAN is not set
# CONFIG_X86_VOYAGER is not set
# CONFIG_X86_NUMAQ is not set
# CONFIG_X86_SUMMIT is not set
# CONFIG_X86_BIGSMP is not set
# CONFIG_X86_VISWS is not set
# CONFIG_X86_GENERICARCH is not set
# CONFIG_X86_ES7000 is not set
# CONFIG_M386 is not set
# CONFIG_M486 is not set
# CONFIG_M586 is not set
# CONFIG_M586TSC is not set
# CONFIG_M586MMX is not set
# CONFIG_M686 is not set
# CONFIG_MPENTIUMII is not set
# CONFIG_MPENTIUMIII is not set
# CONFIG_MPENTIUMM is not set
# CONFIG_MPENTIUM4 is not set
# CONFIG_MK6 is not set
CONFIG_MK7=y
# CONFIG_MK8 is not set
# CONFIG_MCRUSOE is not set
# CONFIG_MWINCHIPC6 is not set
# CONFIG_MWINCHIP2 is not set
# CONFIG_MWINCHIP3D is not set
# CONFIG_MCYRIXIII is not set
# CONFIG_MVIAC3_2 is not set
# CONFIG_X86_GENERIC is not set
CONFIG_X86_CMPXCHG=y
CONFIG_X86_XADD=y
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_RWSEM_GENERIC=y
CONFIG_GENERIC_SEMAPHORES=y
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=y
CONFIG_X86_GOOD_APIC=y
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_X86_USE_3DNOW=y
# CONFIG_SMP is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_BKL=y
CONFIG_PREEMPT_VOLUNTARY=y
CONFIG_PREEMPT_SOFTIRQS=y
CONFIG_PREEMPT_HARDIRQS=y
CONFIG_PREEMPT_REALTIME=y
# CONFIG_X86_UP_APIC is not set
CONFIG_X86_TSC=y
# CONFIG_X86_MCE is not set
# CONFIG_TOSHIBA is not set
# CONFIG_I8K is not set
# CONFIG_MICROCODE is not set
# CONFIG_X86_MSR is not set
# CONFIG_X86_CPUID is not set

#
# Firmware Drivers
#
# CONFIG_EDD is not set
CONFIG_NOHIGHMEM=y
# CONFIG_HIGHMEM4G is not set
# CONFIG_HIGHMEM64G is not set
# CONFIG_MATH_EMULATION is not set
CONFIG_MTRR=y
CONFIG_HAVE_DEC_LOCK=y

#
# Performance-monitoring counters support
#
# CONFIG_PERFCTR is not set
# CONFIG_KEXEC is not set

#
# Power management options (ACPI, APM)
#
CONFIG_PM=y
# CONFIG_PM_DEBUG is not set
# CONFIG_SOFTWARE_SUSPEND is not set

#
# ACPI (Advanced Configuration and Power Interface) Support #
# CONFIG_ACPI is not set CONFIG_ACPI_BLACKLIST_YEAR=0

#
# APM (Advanced Power Management) BIOS Support #
CONFIG_APM=y
# CONFIG_APM_IGNORE_USER_SUSPEND is not set
# CONFIG_APM_DO_ENABLE is not set
# CONFIG_APM_CPU_IDLE is not set
# CONFIG_APM_DISPLAY_BLANK is not set
# CONFIG_APM_RTC_IS_GMT is not set
# CONFIG_APM_ALLOW_INTS is not set CONFIG_APM_REAL_MODE_POWER_OFF=y

#
# CPU Frequency scaling
#
# CONFIG_CPU_FREQ is not set

#
# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
#
CONFIG_PCI=y
# CONFIG_PCI_GOBIOS is not set
# CONFIG_PCI_GOMMCONFIG is not set
# CONFIG_PCI_GODIRECT is not set CONFIG_PCI_GOANY=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_DIRECT=y
# CONFIG_PCI_LEGACY_PROC is not set CONFIG_PCI_NAMES=y
# CONFIG_ISA is not set
# CONFIG_MCA is not set
# CONFIG_SCx200 is not set

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_AOUT=y
CONFIG_BINFMT_MISC=y

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
# CONFIG_DEBUG_DRIVER is not set

#
# Memory Technology Devices (MTD)
#
# CONFIG_MTD is not set

#
# Parallel port support
#
# CONFIG_PARPORT is not set

#
# Plug and Play support
#

#
# Block devices
#
CONFIG_BLK_DEV_FD=m
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_BLK_DEV_NBD=m
# CONFIG_BLK_DEV_SX8 is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=4096
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
# CONFIG_LBD is not set
# CONFIG_CDROM_PKTCDVD is not set

#
# ATA/ATAPI/MFM/RLL support
#
CONFIG_IDE=y
CONFIG_BLK_DEV_IDE=y

#
# Please see Documentation/ide.txt for help/info on IDE drives #
# CONFIG_BLK_DEV_IDE_SATA is not set
# CONFIG_BLK_DEV_HD_IDE is not set CONFIG_BLK_DEV_IDEDISK=y
CONFIG_IDEDISK_MULTI_MODE=y
CONFIG_BLK_DEV_IDECD=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEFLOPPY is not set CONFIG_BLK_DEV_IDESCSI=m
# CONFIG_IDE_TASK_IOCTL is not set

#
# IDE chipset support/bugfixes
#
CONFIG_IDE_GENERIC=y
# CONFIG_BLK_DEV_CMD640 is not set CONFIG_BLK_DEV_IDEPCI=y CONFIG_IDEPCI_SHARE_IRQ=y
# CONFIG_BLK_DEV_OFFBOARD is not set CONFIG_BLK_DEV_GENERIC=y
# CONFIG_BLK_DEV_OPTI621 is not set
# CONFIG_BLK_DEV_RZ1000 is not set CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_IDEDMA_FORCED is not set CONFIG_IDEDMA_PCI_AUTO=y
# CONFIG_IDEDMA_ONLYDISK is not set
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_ATIIXP is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CY82C693 is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT34X is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
# CONFIG_BLK_DEV_NS87415 is not set
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set CONFIG_BLK_DEV_SIS5513=y
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_IDE_ARM is not set CONFIG_BLK_DEV_IDEDMA=y
# CONFIG_IDEDMA_IVB is not set CONFIG_IDEDMA_AUTO=y
# CONFIG_BLK_DEV_HD is not set

#
# SCSI device support
#
CONFIG_SCSI=m
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=m
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=m

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs #
# CONFIG_SCSI_MULTI_LUN is not set CONFIG_SCSI_CONSTANTS=y
# CONFIG_SCSI_LOGGING is not set

#
# SCSI Transport Attributes
#
# CONFIG_SCSI_SPI_ATTRS is not set
# CONFIG_SCSI_FC_ATTRS is not set

#
# SCSI low-level drivers
#
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set CONFIG_SCSI_AIC7XXX=m CONFIG_AIC7XXX_CMDS_PER_DEVICE=32 CONFIG_AIC7XXX_RESET_DELAY_MS=15000
# CONFIG_AIC7XXX_DEBUG_ENABLE is not set CONFIG_AIC7XXX_DEBUG_MASK=0
# CONFIG_AIC7XXX_REG_PRETTY_PRINT is not set # CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_SCSI_SATA is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_ISP is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLOGIC_1280_1040 is not set CONFIG_SCSI_QLA2XXX=m
# CONFIG_SCSI_QLA21XX is not set
# CONFIG_SCSI_QLA22XX is not set
# CONFIG_SCSI_QLA2300 is not set
# CONFIG_SCSI_QLA2322 is not set
# CONFIG_SCSI_QLA6312 is not set
# CONFIG_SCSI_QLA6322 is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_NSP32 is not set
# CONFIG_SCSI_DEBUG is not set

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set

#
# Fusion MPT device support
#
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_IEEE1394 is not set

#
# I2O device support
#
# CONFIG_I2O is not set

#
# Networking support
#
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
CONFIG_NETLINK_DEV=y
CONFIG_UNIX=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
# CONFIG_IP_MULTIPLE_TABLES is not set
# CONFIG_IP_ROUTE_MULTIPATH is not set
# CONFIG_IP_ROUTE_VERBOSE is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_TUNNEL is not set

#
# IP: Virtual Server Configuration
#
# CONFIG_IP_VS is not set
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set

#
# IP: Netfilter Configuration
#
CONFIG_IP_NF_CONNTRACK=m
# CONFIG_IP_NF_CT_ACCT is not set
# CONFIG_IP_NF_CT_PROTO_SCTP is not set
# CONFIG_IP_NF_FTP is not set
# CONFIG_IP_NF_IRC is not set
# CONFIG_IP_NF_TFTP is not set
# CONFIG_IP_NF_AMANDA is not set
# CONFIG_IP_NF_QUEUE is not set CONFIG_IP_NF_IPTABLES=m CONFIG_IP_NF_MATCH_LIMIT=m CONFIG_IP_NF_MATCH_IPRANGE=m CONFIG_IP_NF_MATCH_MAC=m CONFIG_IP_NF_MATCH_PKTTYPE=m CONFIG_IP_NF_MATCH_MARK=m CONFIG_IP_NF_MATCH_MULTIPORT=m CONFIG_IP_NF_MATCH_TOS=m CONFIG_IP_NF_MATCH_RECENT=m CONFIG_IP_NF_MATCH_ECN=m CONFIG_IP_NF_MATCH_DSCP=m CONFIG_IP_NF_MATCH_AH_ESP=m CONFIG_IP_NF_MATCH_LENGTH=m CONFIG_IP_NF_MATCH_TTL=m CONFIG_IP_NF_MATCH_TCPMSS=m CONFIG_IP_NF_MATCH_HELPER=m CONFIG_IP_NF_MATCH_STATE=m CONFIG_IP_NF_MATCH_CONNTRACK=m CONFIG_IP_NF_MATCH_OWNER=m CONFIG_IP_NF_MATCH_ADDRTYPE=m CONFIG_IP_NF_MATCH_REALM=m
# CONFIG_IP_NF_MATCH_SCTP is not set
# CONFIG_IP_NF_MATCH_COMMENT is not set CONFIG_IP_NF_FILTER=m CONFIG_IP_NF_TARGET_REJECT=m CONFIG_IP_NF_TARGET_LOG=m CONFIG_IP_NF_TARGET_ULOG=m CONFIG_IP_NF_TARGET_TCPMSS=m CONFIG_IP_NF_NAT=m
CONFIG_IP_NF_NAT_NEEDED=y CONFIG_IP_NF_TARGET_MASQUERADE=m CONFIG_IP_NF_TARGET_REDIRECT=m CONFIG_IP_NF_TARGET_NETMAP=m CONFIG_IP_NF_TARGET_SAME=m
# CONFIG_IP_NF_NAT_LOCAL is not set
# CONFIG_IP_NF_NAT_SNMP_BASIC is not set CONFIG_IP_NF_MANGLE=m CONFIG_IP_NF_TARGET_TOS=m CONFIG_IP_NF_TARGET_ECN=m CONFIG_IP_NF_TARGET_DSCP=m CONFIG_IP_NF_TARGET_MARK=m CONFIG_IP_NF_TARGET_CLASSIFY=m
# CONFIG_IP_NF_RAW is not set CONFIG_IP_NF_ARPTABLES=m CONFIG_IP_NF_ARPFILTER=m CONFIG_IP_NF_ARP_MANGLE=m
# CONFIG_IP_NF_COMPAT_IPCHAINS is not set
# CONFIG_IP_NF_COMPAT_IPFWADM is not set

#
# SCTP Configuration (EXPERIMENTAL)
#
# CONFIG_IP_SCTP is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
CONFIG_NET_SCHED=y CONFIG_NET_SCH_CLK_JIFFIES=y
# CONFIG_NET_SCH_CLK_GETTIMEOFDAY is not set # CONFIG_NET_SCH_CLK_CPU is not set CONFIG_NET_SCH_CBQ=m
CONFIG_NET_SCH_HTB=m
# CONFIG_NET_SCH_HFSC is not set CONFIG_NET_SCH_PRIO=m
CONFIG_NET_SCH_RED=m
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=m
# CONFIG_NET_SCH_NETEM is not set CONFIG_NET_SCH_INGRESS=m
CONFIG_NET_QOS=y
CONFIG_NET_ESTIMATOR=y
CONFIG_NET_CLS=y
CONFIG_NET_CLS_TCINDEX=m CONFIG_NET_CLS_ROUTE4=m CONFIG_NET_CLS_ROUTE=y
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
# CONFIG_CLS_U32_PERF is not set
# CONFIG_NET_CLS_IND is not set CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
# CONFIG_NET_CLS_ACT is not set CONFIG_NET_CLS_POLICE=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_KGDBOE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NETPOLL_RX is not set
# CONFIG_NETPOLL_TRAP is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_ETHERTAP is not set

#
# ARCnet devices
#
# CONFIG_ARCNET is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_MII=m
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_NET_VENDOR_3COM is not set

#
# Tulip family network device support
#
# CONFIG_NET_TULIP is not set
# CONFIG_HP100 is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_AMD8111_ETH is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_B44 is not set
# CONFIG_FORCEDETH is not set
# CONFIG_DGRS is not set
# CONFIG_EEPRO100 is not set
# CONFIG_E100 is not set
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
CONFIG_SIS900=m
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_E1000 is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_R8169 is not set
# CONFIG_SK98LIN is not set
# CONFIG_VIA_VELOCITY is not set
# CONFIG_TIGON3 is not set

#
# Ethernet (10000 Mbit)
#
# CONFIG_IXGB is not set
# CONFIG_S2IO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
CONFIG_PPP=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPP_FILTER=y
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPPOE=m
# CONFIG_SLIP is not set
# CONFIG_NET_FC is not set
# CONFIG_SHAPER is not set
# CONFIG_NETCONSOLE is not set

#
# ISDN subsystem
#
# CONFIG_ISDN is not set

#
# Telephony Support
#
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y