PROBLEM: 2.6test11 kernel panic on "head -1 /proc/net/tcp"

lkml-031128_at_amos.mailshell.com
Date: 11/28/03

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    Date:	Fri, 28 Nov 2003 19:01:31 +0200
    To: linux-kernel@vger.kernel.org
    
    

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    [1.] One line summary of the problem:

    2.6test11 kernel panic on "head -1 /proc/net/tcp"

    [2.] Full description of the problem/report:

    Simply boot kernel 2.6test11 (got the same with test10) and type
    "head -1 /proc/net/tcp". The system hangs hard with a message:

    "bad: scheduling while atomic!
    Call Trace:
       schedule+0x55d/0x570

    There is a long call trace following that.

    Doing "cat /proc/net/tcp" before that doesn't cause any problem.

    The problem is persistant - it happens every time I tried this.

    I tried both a kernel with and without pre-emption.

    [3.] Keywords (i.e., modules, networking, kernel):

    2.6test11, /proc filesystem, head

    [4.] Kernel version (from /proc/version):

    Linux version 2.6.0-test11-nopreempt (root@picton) (gcc version 3.3.2
    (Debian)) #1 Fri Nov 28 11:33:40 IST 2003

    [5.] Output of Oops.. message (if applicable) with symbolic information
          resolved (see Documentation/oops-tracing.txt)

    Just the first line:

    Call Trace:
       schedule+0x55d/0x570

    [6.] A small shell script or example program which triggers the
          problem (if possible)

    "head -1 /proc/net/tcp"

    [7.] Environment
    [7.1.] Software (add the output of the ver_linux script here)

    Linux picton 2.6.0-test11-nopreempt #1 Fri Nov 28 11:33:40 IST 2003 i686
    GNU/Linux

    Gnu C 3.3.2
    Gnu make 3.80
    util-linux 2.12
    mount 2.12
    module-init-tools 0.9.15-pre3
    e2fsprogs 1.35-WIP
    PPP 2.4.2b3
    Linux C Library 2.3.2
    Dynamic linker (ldd) 2.3.2
    Procps 3.1.14
    Net-tools 1.60
    Console-tools 0.2.3
    Sh-utils 5.0.91
    Modules Loaded sr_mod cdrom radeon ohci_hcd snd_seq_oss
    snd_seq_midi_event snd_seq snd_pcm_oss snd_mixer_oss snd_intel8x0
    snd_pcm snd_timer snd_ac97_codec snd_page_alloc snd_mpu401_uart
    snd_rawmidi snd_seq_device snd

    [7.2.] Processor information (from /proc/cpuinfo):

    processor : 0
    vendor_id : AuthenticAMD
    cpu family : 6
    model : 10
    model name : AMD Athlon(tm) XP 2500+
    stepping : 0
    cpu MHz : 1830.191
    cache size : 512 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 apic sep mtrr pge
    mca cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
    bogomips : 3620.86

    [7.3.] Module information (from /proc/modules):

    sr_mod 16164 1 - Live 0xe0a51000
    cdrom 34720 1 sr_mod, Live 0xe0a5d000
    radeon 117676 34 - Live 0xe0a75000
    ohci_hcd 26688 0 - Live 0xe0a49000
    snd_seq_oss 36160 0 - Live 0xe09f4000
    snd_seq_midi_event 7552 1 snd_seq_oss, Live 0xe09e4000
    snd_seq 59664 4 snd_seq_oss,snd_seq_midi_event, Live 0xe0a30000
    snd_pcm_oss 61668 0 - Live 0xe0a1f000
    snd_mixer_oss 21056 2 snd_pcm_oss, Live 0xe09a0000
    snd_intel8x0 24676 1 - Live 0xe09c3000
    snd_pcm 104228 2 snd_pcm_oss,snd_intel8x0, Live 0xe0a04000
    snd_timer 26116 2 snd_seq,snd_pcm, Live 0xe09cc000
    snd_ac97_codec 53508 1 snd_intel8x0, Live 0xe09d5000
    snd_page_alloc 12292 2 snd_intel8x0,snd_pcm, Live 0xe09be000
    snd_mpu401_uart 7616 1 snd_intel8x0, Live 0xe099d000
    snd_rawmidi 25824 1 snd_mpu401_uart, Live 0xe09b6000
    snd_seq_device 8456 3 snd_seq_oss,snd_seq,snd_rawmidi, Live 0xe0999000
    snd 53476 12
    snd_seq_oss,snd_seq_midi_event,snd_seq,snd_pcm_oss,snd_mixer_oss,snd_intel8x0,snd_pcm,snd_timer,snd_ac97_codec,snd_mpu401_uart,snd_rawmidi,snd_seq_device,
    Live 0xe09a7000

    I also tried this from single user, when most modules are not loaded.

    [7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem)

    /proc/ioports:

    0000-001f : dma1
    0020-0021 : pic1
    0040-005f : timer
    0060-006f : keyboard
    0070-0077 : rtc
    0080-008f : dma page reg
    00a0-00a1 : pic2
    00c0-00df : dma2
    00f0-00ff : fpu
    0170-0177 : ide1
    01f0-01f7 : ide0
    0376-0376 : ide1
    0378-037a : parport0
    03c0-03df : vga+
    03f6-03f6 : ide0
    0cf8-0cff : PCI conf1
    1c00-1c07 : nForce2 SMBus
    2000-2007 : nForce2 SMBus
    9000-9fff : PCI Bus #01
       9000-907f : 0000:01:07.0
         9000-907f : 0000:01:07.0
       9400-947f : 0000:01:08.0
         9400-947f : 0000:01:08.0
    a000-afff : PCI Bus #02
       a000-a0ff : 0000:02:00.0
    b000-b0ff : 0000:00:06.0
    b400-b47f : 0000:00:06.0
       b400-b43f : NVidia nForce2 - Controller
    c000-c01f : 0000:00:01.1
    c400-c407 : 0000:00:04.0
    f000-f00f : 0000:00:09.0
       f000-f007 : ide0
       f008-f00f : ide1

    /proc/iomem:

    00000000-0009fbff : System RAM
    0009fc00-0009ffff : reserved
    000a0000-000bffff : Video RAM area
    000c0000-000c7fff : Video ROM
    000f0000-000fffff : System ROM
    00100000-1ffeffff : System RAM
       00100000-002feecd : Kernel code
       002feece-003a813f : Kernel data
    1fff0000-1fff2fff : ACPI Non-volatile Storage
    1fff3000-1fffffff : ACPI Tables
    d0000000-d3ffffff : 0000:00:00.0
    d4000000-dbffffff : PCI Bus #02
       d4000000-d7ffffff : 0000:02:00.0
       d8000000-dbffffff : 0000:02:00.1
    dc000000-ddffffff : PCI Bus #02
       dd000000-dd00ffff : 0000:02:00.0
       dd010000-dd01ffff : 0000:02:00.1
    de000000-dfffffff : PCI Bus #01
       df000000-df00007f : 0000:01:07.0
       df001000-df00107f : 0000:01:08.0
    e0000000-e0000fff : 0000:00:04.0
    e0001000-e0001fff : 0000:00:06.0
       e0001000-e00011ff : NVidia nForce2 - AC'97
    e0003000-e0003fff : 0000:00:02.0
       e0003000-e0003fff : ohci_hcd
    e0004000-e0004fff : 0000:00:02.1
       e0004000-e0004fff : ohci_hcd
    e0005000-e00050ff : 0000:00:02.2
       e0005000-e00050ff : ehci_hcd
    fec00000-fec00fff : reserved
    fee00000-fee00fff : reserved
    ffff0000-ffffffff : reserved

    [7.5.] PCI information ('lspci -vvv' as root)

    00:00.0 Host bridge: nVidia Corporation nForce2 AGP (different version?)
    (rev c1)
             Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
             Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
             Latency: 0
             Region 0: Memory at d0000000 (32-bit, prefetchable) [size=64M]
             Capabilities: [40] AGP version 2.0
                     Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64-
    HTrans- 64bit- FW+ AGP3- Rate=x1,x2,x4
                     Command: RQ=1 ArqSz=0 Cal=0 SBA+ AGP+ GART64- 64bit-
    FW- Rate=x4
             Capabilities: [60] #08 [2001]

    00:00.1 RAM memory: nVidia Corporation nForce2 Memory Controller 1 (rev c1)
             Subsystem: nVidia Corporation: Unknown device 0c17
             Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
             Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-

    00:00.2 RAM memory: nVidia Corporation nForce2 Memory Controller 4 (rev c1)
             Subsystem: nVidia Corporation: Unknown device 0c17
             Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
             Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-

    00:00.3 RAM memory: nVidia Corporation nForce2 Memory Controller 3 (rev c1)
             Subsystem: nVidia Corporation: Unknown device 0c17
             Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
             Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-

    00:00.4 RAM memory: nVidia Corporation nForce2 Memory Controller 2 (rev c1)
             Subsystem: nVidia Corporation: Unknown device 0c17
             Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
             Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-

    00:00.5 RAM memory: nVidia Corporation nForce2 Memory Controller 5 (rev c1)
             Subsystem: nVidia Corporation: Unknown device 0c17
             Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
             Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-

    00:01.0 ISA bridge: nVidia Corporation nForce2 ISA Bridge (rev a4)
             Subsystem: Giga-byte Technology: Unknown device 0c11
             Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
             Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
             Latency: 0
             Capabilities: [48] #08 [01e1]

    00:01.1 SMBus: nVidia Corporation nForce2 SMBus (MCP) (rev a2)
             Subsystem: Giga-byte Technology: Unknown device 0c11
             Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
             Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
             Interrupt: pin A routed to IRQ 5
             Region 0: I/O ports at c000 [size=32]
             Capabilities: [44] Power Management version 2
                     Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
    PME(D0-,D1-,D2-,D3hot+,D3cold+)
                     Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:02.0 USB Controller: nVidia Corporation nForce2 USB Controller (rev
    a4) (prog-if 10 [OHCI])
             Subsystem: Giga-byte Technology: Unknown device 5004
             Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
             Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
             Latency: 0 (750ns min, 250ns max)
             Interrupt: pin A routed to IRQ 11
             Region 0: Memory at e0003000 (32-bit, non-prefetchable) [size=4K]
             Capabilities: [44] Power Management version 2
                     Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
    PME(D0+,D1+,D2+,D3hot+,D3cold+)
                     Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:02.1 USB Controller: nVidia Corporation nForce2 USB Controller (rev
    a4) (prog-if 10 [OHCI])
             Subsystem: Giga-byte Technology: Unknown device 5004
             Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
             Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
             Latency: 0 (750ns min, 250ns max)
             Interrupt: pin B routed to IRQ 9
             Region 0: Memory at e0004000 (32-bit, non-prefetchable) [size=4K]
             Capabilities: [44] Power Management version 2
                     Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
    PME(D0+,D1+,D2+,D3hot+,D3cold+)
                     Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:02.2 USB Controller: nVidia Corporation nForce2 USB Controller (rev
    a4) (prog-if 20 [EHCI])
             Subsystem: Giga-byte Technology: Unknown device 5004
             Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
             Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
             Latency: 0 (750ns min, 250ns max)
             Interrupt: pin C routed to IRQ 5
             Region 0: Memory at e0005000 (32-bit, non-prefetchable) [size=256]
             Capabilities: [44] #0a [2080]
             Capabilities: [80] Power Management version 2
                     Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
    PME(D0+,D1+,D2+,D3hot+,D3cold+)
                     Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:04.0 Ethernet controller: nVidia Corporation nForce2 Ethernet
    Controller (rev a1)
             Subsystem: Giga-byte Technology: Unknown device e000
             Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
             Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
             Latency: 0 (250ns min, 5000ns max)
             Interrupt: pin A routed to IRQ 11
             Region 0: Memory at e0000000 (32-bit, non-prefetchable) [size=4K]
             Region 1: I/O ports at c400 [size=8]
             Capabilities: [44] Power Management version 2
                     Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
    PME(D0+,D1+,D2+,D3hot+,D3cold+)
                     Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:06.0 Multimedia audio controller: nVidia Corporation nForce2 AC97
    Audio Controler (MCP) (rev a1)
             Subsystem: nVidia Corporation: Unknown device 4144
             Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
             Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
             Latency: 0 (500ns min, 1250ns max)
             Interrupt: pin A routed to IRQ 11
             Region 0: I/O ports at b000 [size=256]
             Region 1: I/O ports at b400 [size=128]
             Region 2: Memory at e0001000 (32-bit, non-prefetchable) [size=4K]
             Capabilities: [44] Power Management version 2
                     Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
    PME(D0-,D1-,D2-,D3hot-,D3cold-)
                     Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:08.0 PCI bridge: nVidia Corporation nForce2 External PCI Bridge (rev
    a3) (prog-if 00 [Normal decode])
             Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR+ FastB2B-
             Status: Cap- 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
             Latency: 0
             Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
             I/O behind bridge: 00009000-00009fff
             Memory behind bridge: de000000-dfffffff
             Prefetchable memory behind bridge: fff00000-000fffff
             BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-

    00:09.0 IDE interface: nVidia Corporation nForce2 IDE (rev a2) (prog-if
    8a [Master SecP PriP])
             Subsystem: Giga-byte Technology: Unknown device 5002
             Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
             Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
             Latency: 0 (750ns min, 250ns max)
             Region 4: I/O ports at f000 [size=16]
             Capabilities: [44] Power Management version 2
                     Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
    PME(D0-,D1-,D2-,D3hot-,D3cold-)
                     Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:1e.0 PCI bridge: nVidia Corporation nForce2 AGP (rev c1) (prog-if 00
    [Normal decode])
             Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR+ FastB2B-
             Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium
    >TAbort- <TAbort- <MAbort- >SERR- <PERR-
             Latency: 32
             Bus: primary=00, secondary=02, subordinate=02, sec-latency=32
             I/O behind bridge: 0000a000-0000afff
             Memory behind bridge: dc000000-ddffffff
             Prefetchable memory behind bridge: d4000000-dbffffff
             BridgeCtl: Parity- SERR+ NoISA- VGA+ MAbort- >Reset- FastB2B-

    01:07.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone]
    (rev 28)
             Subsystem: 3Com Corporation 3C905B Fast Etherlink XL 10/100
             Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
             Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium
    >TAbort- <TAbort- <MAbort- >SERR- <PERR-
             Latency: 32 (2500ns min, 2500ns max), Cache Line Size: 0x08 (32
    bytes)
             Interrupt: pin A routed to IRQ 9
             Region 0: I/O ports at 9000 [size=128]
             Region 1: Memory at df000000 (32-bit, non-prefetchable) [size=128]
             Expansion ROM at <unassigned> [disabled] [size=128K]
             Capabilities: [dc] Power Management version 1
                     Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
    PME(D0-,D1+,D2+,D3hot+,D3cold-)
                     Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    01:08.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone]
    (rev 30)
             Subsystem: 3Com Corporation 3C905B Fast Etherlink XL 10/100
             Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
             Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium
    >TAbort- <TAbort- <MAbort- >SERR- <PERR-
             Latency: 32 (2500ns min, 2500ns max), Cache Line Size: 0x08 (32
    bytes)
             Interrupt: pin A routed to IRQ 5
             Region 0: I/O ports at 9400 [size=128]
             Region 1: Memory at df001000 (32-bit, non-prefetchable) [size=128]
             Expansion ROM at <unassigned> [disabled] [size=128K]
             Capabilities: [dc] Power Management version 1
                     Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
    PME(D0-,D1+,D2+,D3hot+,D3cold-)
                     Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    02:00.0 VGA compatible controller: ATI Technologies Inc Radeon R250 If
    [Radeon 9000] (rev 01) (prog-if 00 [VGA])
             Subsystem: Giga-byte Technology: Unknown device 4010
             Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping+ SERR- FastB2B-
             Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium
    >TAbort- <TAbort- <MAbort- >SERR- <PERR-
             Latency: 32 (2000ns min), Cache Line Size: 0x08 (32 bytes)
             Interrupt: pin A routed to IRQ 9
             Region 0: Memory at d4000000 (32-bit, prefetchable) [size=64M]
             Region 1: I/O ports at a000 [size=256]
             Region 2: Memory at dd000000 (32-bit, non-prefetchable) [size=64K]
             Expansion ROM at <unassigned> [disabled] [size=128K]
             Capabilities: [58] AGP version 2.0
                     Status: RQ=48 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64-
    HTrans- 64bit- FW+ AGP3- Rate=x1,x2,x4
                     Command: RQ=32 ArqSz=0 Cal=0 SBA+ AGP+ GART64- 64bit-
    FW- Rate=x4
             Capabilities: [50] Power Management version 2
                     Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
    PME(D0-,D1-,D2-,D3hot-,D3cold-)
                     Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    02:00.1 Display controller: ATI Technologies Inc Radeon R250 [Radeon
    9000] (Secondary) (rev 01)
             Subsystem: Giga-byte Technology: Unknown device 4011
             Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping+ SERR- FastB2B-
             Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium
    >TAbort- <TAbort- <MAbort- >SERR- <PERR-
             Latency: 32 (2000ns min), Cache Line Size: 0x08 (32 bytes)
             Region 0: Memory at d8000000 (32-bit, prefetchable) [disabled]
    [size=64M]
             Region 1: Memory at dd010000 (32-bit, non-prefetchable)
    [disabled] [size=64K]
             Capabilities: [50] Power Management version 2
                     Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
    PME(D0-,D1-,D2-,D3hot-,D3cold-)
                     Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    [7.6.] SCSI information (from /proc/scsi/scsi)

    There is no /proc/scsi/scsi file on my system.
    It's a non-scsi system. I do use SCSI to access the CD writer and USB.
    Maybe the "REPORTING-BUG" file should be updated to direct to files
    under /sys?

    [7.7.] Other information that might be relevant to the problem
            (please look in /proc and include all information that you
            think to be relevant):

    I think that turning APIC on causes problems on my system, so it's off,
    even local APIC.

    I use a single large ReiserFS filesystem on an 80Gb Maxtor disk.
    No Windows installed on this system.

    [X.] Other notes, patches, fixes, workarounds:

    I think this is a critical bug because any user on the system can cause
    it to crash.

    I can try to copy the call trace by hand if you think you must have it
    in order to analyze the problem.

    Thanks,

    --Amos

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