unexpected IO-APIC

Dear Developers,

We have a Intel DUAL Xeon 2.4 (SE7500CW@) mainboard. We use linux kernel version 2.4.20. We encountered misterious system lockup after 11 days of operation. The cause is not known yet. During boot up, the following message appears in the kernel log:

.... register #00: 02008000
....... : physical APIC id: 02
WARNING: unexpected IO-APIC, please mail to [email protected] .... register #01: 00178020

So we mail to you the full kernel boot log attached. Thank's for your help.

Yours sincerely,
Huba

Dec  2 12:05:29 mm syslogd 1.4.1#10: restart.
Dec  2 12:05:29 mm kernel: klogd 1.4.1#10, log source = /proc/kmsg started.
Dec  2 12:05:29 mm kernel: Inspecting /boot/System.map-2.4.20
Dec  2 12:05:30 mm kernel: Loaded 17569 symbols from /boot/System.map-2.4.20.
Dec  2 12:05:30 mm kernel: Symbols match kernel version 2.4.20.
Dec  2 12:05:30 mm kernel: No module symbols loaded.
Dec  2 12:05:30 mm kernel: Linux version 2.4.20 ([email protected]) (gcc version 2.95.4 20011002 (Debian prerelease)) #1 SMP Mon Dec 2 11:46:51 CET 2002
Dec  2 12:05:30 mm kernel: BIOS-provided physical RAM map:
Dec  2 12:05:30 mm kernel:  BIOS-e820: 0000000000000000 - 000000000009e800 (usable)
Dec  2 12:05:30 mm kernel:  BIOS-e820: 000000000009e800 - 00000000000a0000 (reserved)
Dec  2 12:05:30 mm kernel:  BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
Dec  2 12:05:30 mm kernel:  BIOS-e820: 0000000000100000 - 000000003fef0000 (usable)
Dec  2 12:05:30 mm kernel:  BIOS-e820: 000000003fef0000 - 000000003feff000 (ACPI data)
Dec  2 12:05:30 mm kernel:  BIOS-e820: 000000003feff000 - 000000003ff00000 (ACPI NVS)
Dec  2 12:05:30 mm kernel:  BIOS-e820: 000000003ff00000 - 000000003ff80000 (usable)
Dec  2 12:05:30 mm kernel:  BIOS-e820: 000000003ff80000 - 0000000040000000 (reserved)
Dec  2 12:05:30 mm kernel:  BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved)
Dec  2 12:05:30 mm kernel:  BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
Dec  2 12:05:30 mm kernel:  BIOS-e820: 00000000ff800000 - 00000000ffc00000 (reserved)
Dec  2 12:05:30 mm kernel:  BIOS-e820: 00000000fff00000 - 0000000100000000 (reserved)
Dec  2 12:05:30 mm kernel: 127MB HIGHMEM available.
Dec  2 12:05:30 mm kernel: 896MB LOWMEM available.
Dec  2 12:05:30 mm kernel: found SMP MP-table at 000f66c0
Dec  2 12:05:30 mm kernel: hm, page 000f6000 reserved twice.
Dec  2 12:05:30 mm kernel: hm, page 000f7000 reserved twice.
Dec  2 12:05:30 mm kernel: hm, page 0009e000 reserved twice.
Dec  2 12:05:30 mm kernel: hm, page 0009f000 reserved twice.
Dec  2 12:05:30 mm kernel: On node 0 totalpages: 262016
Dec  2 12:05:30 mm kernel: zone(0): 4096 pages.
Dec  2 12:05:30 mm kernel: zone(1): 225280 pages.
Dec  2 12:05:30 mm kernel: zone(2): 32640 pages.
Dec  2 12:05:30 mm kernel: ACPI: Searched entire block, no RSDP was found.
Dec  2 12:05:30 mm kernel: ACPI: RSDP located at physical address c00f6700
Dec  2 12:05:30 mm kernel: RSD PTR  v0 [PTLTD ]
Dec  2 12:05:30 mm kernel: __va_range(0x3fefbb93, 0x68): idx=8 mapped at ffff6000
Dec  2 12:05:30 mm kernel: ACPI table found: RSDT v1 [PTLTD    RSDT   1540.0]
Dec  2 12:05:30 mm kernel: __va_range(0x3fefee78, 0x24): idx=8 mapped at ffff6000
Dec  2 12:05:30 mm kernel: __va_range(0x3fefee78, 0x74): idx=8 mapped at ffff6000
Dec  2 12:05:30 mm kernel: ACPI table found: FACP v1 [Intel  SE7500CW 1540.0]
Dec  2 12:05:30 mm kernel: __va_range(0x3fefeeec, 0x24): idx=8 mapped at ffff6000
Dec  2 12:05:30 mm kernel: __va_range(0x3fefeeec, 0x50): idx=8 mapped at ffff6000
Dec  2 12:05:30 mm kernel: ACPI table found: SPCR v1 [PTLTD  $UCRTBL$ 1540.0]
Dec  2 12:05:30 mm kernel: __va_range(0x3fefef3c, 0x24): idx=8 mapped at ffff6000
Dec  2 12:05:30 mm kernel: __va_range(0x3fefef3c, 0x9c): idx=8 mapped at ffff6000
Dec  2 12:05:30 mm kernel: ACPI table found: APIC v1 [PTLTD    APIC   1540.0]
Dec  2 12:05:30 mm kernel: __va_range(0x3fefef3c, 0x9c): idx=8 mapped at ffff6000
Dec  2 12:05:30 mm kernel: LAPIC (acpi_id[0x0000] id[0x0] enabled[1])
Dec  2 12:05:30 mm kernel: CPU 0 (0x0000) enabledProcessor #0 Pentium 4(tm) XEON(tm) APIC version 16
Dec  2 12:05:30 mm kernel: 
Dec  2 12:05:30 mm kernel: LAPIC (acpi_id[0x0001] id[0x6] enabled[1])
Dec  2 12:05:30 mm kernel: CPU 1 (0x0600) enabledProcessor #6 Pentium 4(tm) XEON(tm) APIC version 16
Dec  2 12:05:30 mm kernel: 
Dec  2 12:05:30 mm kernel: LAPIC (acpi_id[0x0002] id[0x1] enabled[1])
Dec  2 12:05:30 mm kernel: CPU 2 (0x0100) enabledProcessor #1 Pentium 4(tm) XEON(tm) APIC version 16
Dec  2 12:05:30 mm kernel: 
Dec  2 12:05:30 mm kernel: LAPIC (acpi_id[0x0003] id[0x7] enabled[1])
Dec  2 12:05:30 mm kernel: CPU 3 (0x0700) enabledProcessor #7 Pentium 4(tm) XEON(tm) APIC version 16
Dec  2 12:05:30 mm kernel: 
Dec  2 12:05:30 mm kernel: IOAPIC (id[0x2] address[0xfec00000] global_irq_base[0x0])
Dec  2 12:05:30 mm kernel: IOAPIC (id[0x3] address[0xfec80000] global_irq_base[0x18])
Dec  2 12:05:30 mm kernel: IOAPIC (id[0x4] address[0xfec80400] global_irq_base[0x30])
Dec  2 12:05:30 mm kernel: INT_SRC_OVR (bus[0] irq[0x0] global_irq[0x2] polarity[0x1] trigger[0x1])
Dec  2 12:05:30 mm kernel: INT_SRC_OVR (bus[0] irq[0x9] global_irq[0x9] polarity[0x1] trigger[0x3])
Dec  2 12:05:30 mm kernel: LAPIC_NMI (acpi_id[0x0000] polarity[0x1] trigger[0x1] lint[0x1])
Dec  2 12:05:30 mm kernel: LAPIC_NMI (acpi_id[0x0001] polarity[0x1] trigger[0x1] lint[0x1])
Dec  2 12:05:30 mm kernel: LAPIC_NMI (acpi_id[0x0002] polarity[0x1] trigger[0x1] lint[0x1])
Dec  2 12:05:30 mm kernel: LAPIC_NMI (acpi_id[0x0003] polarity[0x1] trigger[0x1] lint[0x1])
Dec  2 12:05:30 mm kernel: 4 CPUs total
Dec  2 12:05:30 mm kernel: Local APIC address fee00000
Dec  2 12:05:30 mm kernel: __va_range(0x3fefefd8, 0x24): idx=8 mapped at ffff6000
Dec  2 12:05:30 mm kernel: __va_range(0x3fefefd8, 0x28): idx=8 mapped at ffff6000
Dec  2 12:05:30 mm kernel: ACPI table found: BOOT v1 [PTLTD  $SBFTBL$ 1540.0]
Dec  2 12:05:30 mm kernel: Enabling the CPU's according to the ACPI table
Dec  2 12:05:30 mm kernel: Intel MultiProcessor Specification v1.4
Dec  2 12:05:30 mm kernel:     Virtual Wire compatibility mode.
Dec  2 12:05:30 mm kernel: OEM ID:   Product ID: SE7500CW2 APIC at: 0xFEE00000
Dec  2 12:05:30 mm kernel: I/O APIC #2 Version 32 at 0xFEC00000.
Dec  2 12:05:30 mm kernel: I/O APIC #3 Version 32 at 0xFEC80000.
Dec  2 12:05:30 mm kernel: I/O APIC #4 Version 32 at 0xFEC80400.
Dec  2 12:05:30 mm kernel: Processors: 4
Dec  2 12:05:30 mm kernel: Kernel command line: auto BOOT_IMAGE=Linux-20 ro root=306
Dec  2 12:05:30 mm kernel: Initializing CPU#0
Dec  2 12:05:30 mm kernel: Detected 2392.295 MHz processor.
Dec  2 12:05:30 mm kernel: Console: colour VGA+ 80x25
Dec  2 12:05:30 mm kernel: Calibrating delay loop... 4771.02 BogoMIPS
Dec  2 12:05:30 mm kernel: Memory: 1032768k/1048064k available (1323k kernel code, 14840k reserved, 584k data, 100k init, 130496k highmem)
Dec  2 12:05:30 mm kernel: Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
Dec  2 12:05:30 mm kernel: Inode cache hash table entries: 65536 (order: 7, 524288 bytes)
Dec  2 12:05:30 mm kernel: Mount-cache hash table entries: 16384 (order: 5, 131072 bytes)
Dec  2 12:05:30 mm kernel: Buffer-cache hash table entries: 65536 (order: 6, 262144 bytes)
Dec  2 12:05:30 mm kernel: Page-cache hash table entries: 262144 (order: 8, 1048576 bytes)
Dec  2 12:05:30 mm kernel: CPU: L1 I cache: 0K, L1 D cache: 8K
Dec  2 12:05:30 mm kernel: CPU: L2 cache: 512K
Dec  2 12:05:30 mm kernel: CPU: Physical Processor ID: 0
Dec  2 12:05:30 mm kernel: Intel machine check architecture supported.
Dec  2 12:05:30 mm kernel: Intel machine check reporting enabled on CPU#0.
Dec  2 12:05:30 mm kernel: Enabling fast FPU save and restore... done.
Dec  2 12:05:30 mm kernel: Enabling unmasked SIMD FPU exception support... done.
Dec  2 12:05:30 mm kernel: Checking 'hlt' instruction... OK.
Dec  2 12:05:30 mm kernel: POSIX conformance testing by UNIFIX
Dec  2 12:05:30 mm kernel: CPU: L1 I cache: 0K, L1 D cache: 8K
Dec  2 12:05:30 mm kernel: CPU: L2 cache: 512K
Dec  2 12:05:30 mm kernel: CPU: Physical Processor ID: 0
Dec  2 12:05:30 mm kernel: Intel machine check reporting enabled on CPU#0.
Dec  2 12:05:30 mm kernel: CPU0: Intel(R) XEON(TM) CPU 2.40GHz stepping 04
Dec  2 12:05:30 mm kernel: per-CPU timeslice cutoff: 1462.89 usecs.
Dec  2 12:05:30 mm kernel: enabled ExtINT on CPU#0
Dec  2 12:05:30 mm kernel: ESR value before enabling vector: 00000000
Dec  2 12:05:30 mm kernel: ESR value after enabling vector: 00000000
Dec  2 12:05:30 mm kernel: Booting processor 1/1 eip 2000
Dec  2 12:05:30 mm kernel: Initializing CPU#1
Dec  2 12:05:30 mm kernel: masked ExtINT on CPU#1
Dec  2 12:05:30 mm kernel: ESR value before enabling vector: 00000000
Dec  2 12:05:30 mm kernel: ESR value after enabling vector: 00000000
Dec  2 12:05:30 mm kernel: Calibrating delay loop... 4784.12 BogoMIPS
Dec  2 12:05:30 mm kernel: CPU: L1 I cache: 0K, L1 D cache: 8K
Dec  2 12:05:30 mm kernel: CPU: L2 cache: 512K
Dec  2 12:05:30 mm kernel: CPU: Physical Processor ID: 0
Dec  2 12:05:30 mm kernel: Intel machine check reporting enabled on CPU#1.
Dec  2 12:05:30 mm kernel: CPU1: Intel(R) XEON(TM) CPU 2.40GHz stepping 04
Dec  2 12:05:30 mm kernel: Booting processor 2/6 eip 2000
Dec  2 12:05:30 mm kernel: Initializing CPU#2
Dec  2 12:05:30 mm kernel: masked ExtINT on CPU#2
Dec  2 12:05:30 mm kernel: ESR value before enabling vector: 00000000
Dec  2 12:05:30 mm kernel: ESR value after enabling vector: 00000000
Dec  2 12:05:30 mm kernel: Calibrating delay loop... 4784.12 BogoMIPS
Dec  2 12:05:30 mm kernel: CPU: L1 I cache: 0K, L1 D cache: 8K
Dec  2 12:05:30 mm kernel: CPU: L2 cache: 512K
Dec  2 12:05:30 mm kernel: CPU: Physical Processor ID: 3
Dec  2 12:05:30 mm kernel: Intel machine check reporting enabled on CPU#2.
Dec  2 12:05:30 mm kernel: CPU2: Intel(R) XEON(TM) CPU 2.40GHz stepping 04
Dec  2 12:05:30 mm kernel: Booting processor 3/7 eip 2000
Dec  2 12:05:30 mm kernel: Initializing CPU#3
Dec  2 12:05:30 mm kernel: masked ExtINT on CPU#3
Dec  2 12:05:30 mm kernel: ESR value before enabling vector: 00000000
Dec  2 12:05:30 mm kernel: ESR value after enabling vector: 00000000
Dec  2 12:05:30 mm kernel: Calibrating delay loop... 4784.12 BogoMIPS
Dec  2 12:05:30 mm kernel: CPU: L1 I cache: 0K, L1 D cache: 8K
Dec  2 12:05:30 mm kernel: CPU: L2 cache: 512K
Dec  2 12:05:30 mm kernel: CPU: Physical Processor ID: 3
Dec  2 12:05:30 mm kernel: Intel machine check reporting enabled on CPU#3.
Dec  2 12:05:30 mm kernel: CPU3: Intel(R) XEON(TM) CPU 2.40GHz stepping 04
Dec  2 12:05:30 mm kernel: Total of 4 processors activated (19123.40 BogoMIPS).
Dec  2 12:05:30 mm kernel: cpu_sibling_map[0] = 1
Dec  2 12:05:30 mm kernel: cpu_sibling_map[1] = 0
Dec  2 12:05:30 mm kernel: cpu_sibling_map[2] = 3
Dec  2 12:05:30 mm kernel: cpu_sibling_map[3] = 2
Dec  2 12:05:30 mm kernel: ENABLING IO-APIC IRQs
Dec  2 12:05:30 mm kernel: Setting 2 in the phys_id_present_map
Dec  2 12:05:30 mm kernel: ...changing IO-APIC physical APIC ID to 2 ... ok.
Dec  2 12:05:30 mm kernel: Setting 3 in the phys_id_present_map
Dec  2 12:05:30 mm kernel: ...changing IO-APIC physical APIC ID to 3 ... ok.
Dec  2 12:05:30 mm kernel: Setting 4 in the phys_id_present_map
Dec  2 12:05:30 mm kernel: ...changing IO-APIC physical APIC ID to 4 ... ok.
Dec  2 12:05:30 mm kernel: ..TIMER: vector=0x31 pin1=2 pin2=0
Dec  2 12:05:30 mm kernel: testing the IO APIC.......................
Dec  2 12:05:30 mm kernel: 
Dec  2 12:05:30 mm kernel:  WARNING: unexpected IO-APIC, please mail
Dec  2 12:05:30 mm kernel:           to [email protected]
Dec  2 12:05:30 mm kernel: 
Dec  2 12:05:30 mm kernel: 
Dec  2 12:05:30 mm kernel: .................................... done.
Dec  2 12:05:30 mm kernel: Using local APIC timer interrupts.
Dec  2 12:05:30 mm kernel: calibrating APIC timer ...
Dec  2 12:05:30 mm kernel: ..... CPU clock speed is 2392.4198 MHz.
Dec  2 12:05:30 mm kernel: ..... host bus clock speed is 99.6841 MHz.
Dec  2 12:05:30 mm kernel: cpu: 0, clocks: 996841, slice: 199368
Dec  2 12:05:30 mm kernel: CPU0<T0:996832,T1:797456,D:8,S:199368,C:996841>
Dec  2 12:05:30 mm kernel: cpu: 1, clocks: 996841, slice: 199368
Dec  2 12:05:30 mm kernel: cpu: 3, clocks: 996841, slice: 199368
Dec  2 12:05:30 mm kernel: cpu: 2, clocks: 996841, slice: 199368
Dec  2 12:05:30 mm kernel: CPU3<T0:996832,T1:199360,D:0,S:199368,C:996841>
Dec  2 12:05:30 mm kernel: CPU1<T0:996832,T1:598096,D:0,S:199368,C:996841>
Dec  2 12:05:30 mm kernel: CPU2<T0:996832,T1:398720,D:8,S:199368,C:996841>
Dec  2 12:05:30 mm kernel: checking TSC synchronization across CPUs: passed.
Dec  2 12:05:30 mm kernel: Waiting on wait_init_idle (map = 0xe)
Dec  2 12:05:30 mm kernel: All processors have done init_idle
Dec  2 12:05:30 mm kernel: PCI: PCI BIOS revision 2.10 entry at 0xfd921, last bus=4
Dec  2 12:05:30 mm kernel: PCI: Using configuration type 1
Dec  2 12:05:30 mm kernel: PCI: Probing PCI hardware
Dec  2 12:05:30 mm kernel: Transparent bridge - Intel Corp. 82801BA/CA/DB PCI Bridge
Dec  2 12:05:30 mm kernel: PCI: Using IRQ router PIIX [8086/2480] at 00:1f.0
Dec  2 12:05:30 mm kernel: PCI->APIC IRQ transform: (B0,I31,P0) -> 17
Dec  2 12:05:30 mm kernel: PCI->APIC IRQ transform: (B0,I31,P1) -> 17
Dec  2 12:05:30 mm kernel: PCI->APIC IRQ transform: (B4,I3,P0) -> 21
Dec  2 12:05:30 mm kernel: PCI->APIC IRQ transform: (B4,I5,P0) -> 23
Dec  2 12:05:30 mm kernel: isapnp: Scanning for PnP cards...
Dec  2 12:05:30 mm kernel: isapnp: No Plug & Play device found
Dec  2 12:05:30 mm kernel: Linux NET4.0 for Linux 2.4
Dec  2 12:05:30 mm kernel: Based upon Swansea University Computer Society NET3.039
Dec  2 12:05:30 mm kernel: Initializing RT netlink socket
Dec  2 12:05:30 mm kernel: Starting kswapd
Dec  2 12:05:30 mm kernel: allocated 32 pages and 32 bhs reserved for the highmem bounces
Dec  2 12:05:30 mm kernel: VFS: Diskquotas version dquot_6.4.0 initialized
Dec  2 12:05:30 mm kernel: Journalled Block Device driver loaded
Dec  2 12:05:30 mm kernel: Installing knfsd (copyright (C) 1996 [email protected]).
Dec  2 12:05:30 mm kernel: Detected PS/2 Mouse Port.
Dec  2 12:05:30 mm kernel: pty: 256 Unix98 ptys configured
Dec  2 12:05:30 mm kernel: Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI ISAPNP enabled
Dec  2 12:05:30 mm kernel: ttyS00 at 0x03f8 (irq = 4) is a 16550A
Dec  2 12:05:30 mm kernel: ttyS01 at 0x02f8 (irq = 3) is a 16550A
Dec  2 12:05:30 mm kernel: Uniform Multi-Platform E-IDE driver Revision: 6.31
Dec  2 12:05:30 mm kernel: ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
Dec  2 12:05:30 mm kernel: ICH3: IDE controller on PCI bus 00 dev f9
Dec  2 12:05:30 mm kernel: ICH3: BIOS setup was incomplete.
Dec  2 12:05:30 mm kernel: ICH3: chipset revision 2
Dec  2 12:05:30 mm kernel: ICH3: not 100%% native mode: will probe irqs later
Dec  2 12:05:30 mm kernel:     ide0: BM-DMA at 0x6c20-0x6c27, BIOS settings: hda:pio, hdb:pio
Dec  2 12:05:30 mm kernel:     ide1: BM-DMA at 0x6c28-0x6c2f, BIOS settings: hdc:pio, hdd:pio
Dec  2 12:05:30 mm kernel: keyboard: Timeout - AT keyboard not present?(ed)
Dec  2 12:05:30 mm kernel: keyboard: Timeout - AT keyboard not present?(f4)
Dec  2 12:05:30 mm kernel: hda: ST380021A, ATA DISK drive
Dec  2 12:05:30 mm kernel: hdc: ST3120023A, ATA DISK drive
Dec  2 12:05:30 mm kernel: ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Dec  2 12:05:30 mm kernel: ide1 at 0x170-0x177,0x376 on irq 15
Dec  2 12:05:30 mm kernel: blk: queue c03533e4, I/O limit 4095Mb (mask 0xffffffff)
Dec  2 12:05:30 mm kernel: hda: 156301488 sectors (80026 MB) w/2048KiB Cache, CHS=155061/16/63, UDMA(100)
Dec  2 12:05:30 mm kernel: blk: queue c0353748, I/O limit 4095Mb (mask 0xffffffff)
Dec  2 12:05:30 mm kernel: hdc: 234441648 sectors (120034 MB) w/2048KiB Cache, CHS=232581/16/63, UDMA(100)
Dec  2 12:05:30 mm kernel: Partition check:
Dec  2 12:05:30 mm kernel:  hda: [PTBL] [9729/255/63] hda1 hda2 < hda5 hda6 hda7 hda8 hda9 >
Dec  2 12:05:30 mm kernel:  hdc: hdc1 hdc2
Dec  2 12:05:30 mm kernel: FDC 0 is a post-1991 82077
Dec  2 12:05:30 mm kernel: eepro100.c:v1.09j-t 9/29/99 Donald Becker http://www.scyld.com/network/eepro100.html
Dec  2 12:05:30 mm kernel: eepro100.c: $Revision: 1.36 $ 2000/11/17 Modified by Andrey V. Savochkin <[email protected]> and others
Dec  2 12:05:30 mm kernel: eth0: OEM i82557/i82558 10/100 Ethernet, 00:02:B3:B0:A7:CB, IRQ 23.
Dec  2 12:05:30 mm kernel:   Board assembly ffffff-255, Physical connectors present: RJ45
Dec  2 12:05:30 mm kernel:   Primary interface chip i82555 PHY #1.
Dec  2 12:05:30 mm kernel:     Secondary interface chip i82555.
Dec  2 12:05:30 mm kernel:   General self-test: passed.
Dec  2 12:05:30 mm kernel:   Serial sub-system self-test: passed.
Dec  2 12:05:30 mm kernel:   Internal registers self-test: passed.
Dec  2 12:05:30 mm kernel:   ROM checksum self-test: passed (0xb874c1d3).
Dec  2 12:05:30 mm kernel: Linux agpgart interface v0.99 (c) Jeff Hartmann
Dec  2 12:05:30 mm kernel: agpgart: Maximum main memory to use for agp memory: 941M
Dec  2 12:05:30 mm kernel: [drm] Initialized tdfx 1.0.0 20010216 on minor 0
Dec  2 12:05:30 mm kernel: [drm] Initialized radeon 1.1.1 20010405 on minor 1
Dec  2 12:05:30 mm kernel: Linux Kernel Card Services 3.1.22
Dec  2 12:05:30 mm kernel:   options:  [pci] [cardbus] [pm]
Dec  2 12:05:30 mm kernel: NET4: Linux TCP/IP 1.0 for NET4.0
Dec  2 12:05:30 mm kernel: IP Protocols: ICMP, UDP, TCP, IGMP
Dec  2 12:05:30 mm kernel: IP: routing cache hash table of 8192 buckets, 64Kbytes
Dec  2 12:05:30 mm kernel: TCP: Hash tables configured (established 262144 bind 65536)
Dec  2 12:05:30 mm kernel: NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Dec  2 12:05:30 mm kernel: ds: no socket drivers loaded!
Dec  2 12:05:30 mm kernel: VFS: Mounted root (ext2 filesystem) readonly.
Dec  2 12:05:30 mm kernel: Freeing unused kernel memory: 100k freed
Dec  2 12:05:30 mm kernel: Adding Swap: 489940k swap-space (priority -1)
Dec  2 12:05:30 mm kernel: kjournald starting.  Commit interval 5 seconds
Dec  2 12:05:30 mm kernel: EXT3 FS 2.4-0.9.19, 19 August 2002 on ide0(3,7), internal journal
Dec  2 12:05:30 mm kernel: EXT3-fs: mounted filesystem with ordered data mode.
Dec  2 12:05:30 mm kernel: kjournald starting.  Commit interval 5 seconds
Dec  2 12:05:30 mm kernel: EXT3 FS 2.4-0.9.19, 19 August 2002 on ide0(3,8), internal journal
Dec  2 12:05:30 mm kernel: EXT3-fs: mounted filesystem with ordered data mode.
Dec  2 12:05:30 mm kernel: kjournald starting.  Commit interval 5 seconds
Dec  2 12:05:30 mm kernel: EXT3 FS 2.4-0.9.19, 19 August 2002 on ide0(3,9), internal journal
Dec  2 12:05:30 mm kernel: EXT3-fs: mounted filesystem with ordered data mode.
Dec  2 12:05:30 mm kernel: kjournald starting.  Commit interval 5 seconds
Dec  2 12:05:30 mm kernel: EXT3 FS 2.4-0.9.19, 19 August 2002 on ide1(22,1), internal journal
Dec  2 12:05:30 mm kernel: EXT3-fs: mounted filesystem with ordered data mode.
Dec  2 12:05:30 mm kernel: kjournald starting.  Commit interval 5 seconds
Dec  2 12:05:30 mm kernel: EXT3 FS 2.4-0.9.19, 19 August 2002 on ide1(22,2), internal journal
Dec  2 12:05:30 mm kernel: EXT3-fs: mounted filesystem with ordered data mode.
Dec  2 12:25:29 mm -- MARK --

Has anyone experience with Shuttle XPC and hyperthreading? Especially with motherboard FB51 and Intel 845GE chipset.

Do I need APIC to get the hyperthreading work?
(on the test machine with SiS651 I had to say "noapic")

Will "noapic" affect performance?

Background:
For several years we have used servers and workstations based on dual pentium systems (Asus and Intel mb).

Now we intend switching to the new XPC systems from Shuttle, as work stations as they are small and rather silent.

On the first system (SLiX with Creative label) the APIC didn't work however. This corresponds to Shuttle SS-51G with mb FS51G which utilizes the SiS651 chipset. (This has, however, not hyperthread support)

Now, I have plans to check the SB-51G with FB51 mb which uses the Intel i845GE chipset, and which really has hyperthread support.

/Roland Orre

In article <1052206636.16793.28.camel@localhost>,

That's the one I got as a fairly quiet (and small) work machine replacement. Works fine. My only complaint being that it doesn't seem to like ECC DDR modules (which a i845 _should_ support as far as I know), but maybe the ones I had lying around were bad.

Yes.

No need to disable apic, it works fine on the i845GE board.

One comment: if you're going to use the built-in graphics (which work fine - even 3D is quite respectable for "everyday" usage), I'd get DDR-333 memory, since the UMA memory model means that especially at higher resolutions you _will_ be losing part of the memory bandwidth to the graphics.

Linus