2.6.8-rc4 kaboom

Booted 2.6.8-rc4 at 7:45. Crashed by 10:00.
Stock from kernel.org with Con Kolivas patch to move kernel memory start to 0xb0000000 so I can use all 1G of memory.

Multiple crash messages scrolled off the screen, but here what was left on the screen:

       10000000 b045cc84 00000045 46000001 00000000 0011e3a0 00000001 b045cd00
       b045ccac c0109598 b045cd00 b03a4668 20000001 00000000 b045cccc b010596b
Call Trace:
Stack pointer is garbage, not printing trace
Code:  Bad EIP value.
 <0>Kernel panic: Fatal exception in interrupt

In interrupt handler - not syncing
<1>Unable to handle kernel paging request at virtual address 300003fc printing eip:
b02681a1
*pde = 00000000

Oops: 0000 [#4]
CPU:    0
EIP:    0060:[<b02681a1>]    Not tainted
EFLAGS: 00010006   (2.6.8-rc4)

EIP is at ide_intr+0x31/0x140
eax: 30000000 ebx: 00001000 ecx: 0000000a edx: 30000000
esi: effe8ba8 edi: 00000296 ebp: b045caa4 esp: b045ca88
ds: 007b es: 007b ss: 0068
Process nfsd (pid: 1129, threadinfo=b045c000 task=ee1aa170)

Stack: b045caf8 b045caa4 00001000 30000000 efcbc660 04000001 00000000 b045cac4
       b010596b 0000000a effe8ba0 b045caf8 00000140 b045c000 0000000a b045caf0
       b0105d4f 0000000a b045caf8 efcbc660 b045c000 efcbc660 b043bb40 b04668e0
Call Trace:
Stack pointer is garbage, not printing trace
Code: 8b 82 fc 03 00 00 85 c0 74 07 66 83 78 24 00 74 20 8b 55 f0
 <0>Kernel panic: Fatal exception in interrupt

In interrupt handler - not syncing
<1>Unable to handle kernel paging request at virtual address 00001004 printing eip:
b02a3dd8
*pde = 00000000

Oops: 0000 [#5]
CPU:    0
EIP:    0060:[<b02a3dd8>]    Not tainted
EFLAGS: 00010206   (2.6.8-rc4)

EIP is at input_event+0xf8/0x3f0
eax: 00001000 ebx: efff4b20 ecx: 00000036 edx: 00000001
esi: efd10838 edi: 00000001 ebp: b045c834 esp: b045c814
Process nfsd (pid: 1129, threadinfo=b045c000 rask=ee1aa170)

Stack: efff4b20 00000001 00000036 00000001 b020223b efd10200 00000000 0001e942
       b045c854 b02a637e efd10200 00000001 00000036 00000001 00000036 efd10000
       b045c894 b02a65cb efd10200 b045c92c 00000036 00000001 00000000 b045c890
Call Trace:
Stack pointer is garbage, not printing trace
Code: ff 50 04 eb ca 8b 4d 14 8b 42 10 89 7c 24 04 89 4c 24 0c 8b
 <0>Kernel panic: Fatal exception in interrupt

In interrupt handler - not syncing

Translating visible addresses (the normal dumper doesn't understand interrupt stacks):

Addresses from b045c000 through b045cfff are hardirq_stack (the kernel is compiled with frame pointers).

b03a4668 : irq0 + 0
b010596b : handle_IRQ_event+0x3b/0x70

b010596b : handle_IRQ_event+0x3b/0x70
b0105d4f : do_IRQ+0x16F/0x1A0
b043bb40 : buffer_init+0x20/0x90
b04668e0 : buf.0+0/0x400

b020223b : scrup+0xFB/0x110
b02a637e : atkbd_report_key+0x3E/0x90
b02a65cb : atkbd_interrupt+0x1FB/0x570

.config follows. I'm back to running -rc3.
If someone feels like fixing the backtrace code to understand interrupt stacks, it would be a very good thing...

CONFIG_X86=y
CONFIG_MMU=y
CONFIG_UID16=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_EXPERIMENTAL=y
CONFIG_CLEAN_COMPILE=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSCTL=y
CONFIG_LOG_BUF_SHIFT=15
CONFIG_HOTPLUG=y
CONFIG_IKCONFIG=y
CONFIG_KALLSYMS=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
CONFIG_X86_PC=y
CONFIG_MPENTIUMII=y
CONFIG_X86_CMPXCHG=y
CONFIG_X86_XADD=y
CONFIG_X86_L1_CACHE_SHIFT=5
CONFIG_RWSEM_XCHGADD_ALGORITHM=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_UP_APIC=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_TSC=y
CONFIG_X86_MCE=y
CONFIG_X86_MSR=y
CONFIG_NOHIGHMEM=y
CONFIG_MTRR=y
CONFIG_ACPI_BOOT=y
CONFIG_PCI=y
CONFIG_PCI_GOANY=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_PCI_NAMES=y
CONFIG_ISA=y
CONFIG_PCMCIA=y
CONFIG_PCMCIA_DEBUG=y
CONFIG_YENTA=y
CONFIG_CARDBUS=y
CONFIG_PCMCIA_PROBE=y
CONFIG_BINFMT_ELF=y
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=y
CONFIG_PARPORT_PC_CML1=y
CONFIG_PARPORT_PC_FIFO=y
CONFIG_PARPORT_PC_SUPERIO=y
CONFIG_PARPORT_1284=y
CONFIG_BLK_DEV_FD=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=y
CONFIG_IDE=y
CONFIG_BLK_DEV_IDE=y
CONFIG_BLK_DEV_IDEDISK=y
CONFIG_IDEDISK_MULTI_MODE=y
CONFIG_IDE_TASKFILE_IO=y
CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_SHARE_IRQ=y
CONFIG_BLK_DEV_GENERIC=y
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_IDEDMA_PCI_AUTO=y
CONFIG_BLK_DEV_ADMA=y
CONFIG_BLK_DEV_PIIX=y
CONFIG_BLK_DEV_PDC202XX_NEW=y
CONFIG_BLK_DEV_IDEDMA=y
CONFIG_IDEDMA_AUTO=y
CONFIG_SCSI=y
CONFIG_SCSI_PROC_FS=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=y
CONFIG_BLK_DEV_SR=y
CONFIG_CHR_DEV_SG=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_BUSLOGIC=y
CONFIG_SCSI_OMIT_FLASHPOINT=y
CONFIG_SCSI_QLA2XXX=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_RAID0=y
CONFIG_MD_RAID1=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_NETLINK_DEV=y
CONFIG_UNIX=y
CONFIG_NET_KEY=y
CONFIG_INET=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_NET_IPIP=y
CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=y
CONFIG_INET_ESP=y
CONFIG_INET_IPCOMP=y
CONFIG_NETFILTER=y
CONFIG_IP_NF_CONNTRACK=y
CONFIG_IP_NF_FTP=y
CONFIG_IP_NF_IRC=y
CONFIG_IP_NF_QUEUE=y
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_MATCH_LIMIT=y
CONFIG_IP_NF_MATCH_MARK=y
CONFIG_IP_NF_MATCH_RECENT=y
CONFIG_IP_NF_MATCH_ECN=y
CONFIG_IP_NF_MATCH_HELPER=y
CONFIG_IP_NF_MATCH_STATE=y
CONFIG_IP_NF_MATCH_CONNTRACK=y
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REJECT=y
CONFIG_IP_NF_NAT=y
CONFIG_IP_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=y
CONFIG_IP_NF_TARGET_REDIRECT=y
CONFIG_IP_NF_NAT_IRC=y
CONFIG_IP_NF_NAT_FTP=y
CONFIG_IP_NF_MANGLE=y
CONFIG_IP_NF_TARGET_TOS=y
CONFIG_IP_NF_TARGET_ECN=y
CONFIG_IP_NF_TARGET_MARK=y
CONFIG_IP_NF_TARGET_LOG=y
CONFIG_IP_NF_TARGET_ULOG=y
CONFIG_IP_NF_TARGET_NOTRACK=y
CONFIG_IP_NF_RAW=y
CONFIG_IP_NF_MATCH_ADDRTYPE=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=y
CONFIG_NET_SCHED=y
CONFIG_NET_SCH_CLK_CPU=y
CONFIG_NET_SCH_CBQ=y
CONFIG_NET_SCH_HTB=y
CONFIG_NET_SCH_HFSC=y
CONFIG_NET_SCH_RED=y
CONFIG_NET_SCH_TBF=y
CONFIG_NET_SCH_NETEM=y
CONFIG_NET_SCH_INGRESS=y
CONFIG_NET_CLS=y
CONFIG_NET_CLS_TCINDEX=y
CONFIG_NET_CLS_ROUTE4=y
CONFIG_NET_CLS_ROUTE=y
CONFIG_NET_CLS_FW=y
CONFIG_NET_CLS_U32=y
CONFIG_NETDEVICES=y
CONFIG_DUMMY=y
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
CONFIG_NET_TULIP=y
CONFIG_TULIP=y
CONFIG_TULIP_MWI=y
CONFIG_TULIP_MMIO=y
CONFIG_TULIP_NAPI=y
CONFIG_TULIP_NAPI_HW_MITIGATION=y
CONFIG_NET_RADIO=y
CONFIG_PCMCIA_WAVELAN=y
CONFIG_PCMCIA_NETWAVE=y
CONFIG_PCMCIA_RAYCS=y
CONFIG_AIRO=y
CONFIG_HERMES=y
CONFIG_PCMCIA_HERMES=y
CONFIG_AIRO_CS=y
CONFIG_NET_WIRELESS=y
CONFIG_NET_PCMCIA=y
CONFIG_PPP=y
CONFIG_PPP_FILTER=y
CONFIG_PPP_ASYNC=y
CONFIG_PPP_DEFLATE=y
CONFIG_PPP_BSDCOMP=y
CONFIG_INPUT=y
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
CONFIG_SOUND_GAMEPORT=y
CONFIG_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_CORE=y
CONFIG_UNIX98_PTYS=y
CONFIG_PRINTER=y
CONFIG_AGP=y
CONFIG_AGP_INTEL=y
CONFIG_VIDEO_SELECT=y
CONFIG_VGA_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_JBD=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_RAMFS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_TCP=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=y
CONFIG_SUNRPC=y
CONFIG_SMB_FS=y
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="cp437"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_15=y
CONFIG_DEBUG_KERNEL=y
CONFIG_EARLY_PRINTK=y
CONFIG_DEBUG_STACKOVERFLOW=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_FRAME_POINTER=y
CONFIG_4KSTACKS=y
CONFIG_X86_FIND_SMP_CONFIG=y
CONFIG_X86_MPPARSE=y
CONFIG_CRYPTO=y
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_DES=y
CONFIG_CRYPTO_TWOFISH=y
CONFIG_CRYPTO_AES_586=y
CONFIG_CRYPTO_TEA=y
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRC_CCITT=y
CONFIG_CRC32=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_X86_BIOS_REBOOT=y
CONFIG_PC=y