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    Subject2.4.17smp kernel oops in nfs client
    hello,

    log monitoring revealed that a user processed crashed a few days
    ago and left an ooops message along with a zombie user process
    (in non-interruptible disk wait).

    the machine was still running fine with +2 extra load.

    ksymoops output attached along with other details.

    regards,
    --
    Steinar Hauan, dept of ChemE -- hauan@cmu.edu
    Carnegie Mellon University, Pittsburgh PA, USA
    ksymoops 2.4.3 on i686 2.4.17. Options used
    -v /beowulf/install/kernel/linux-2.4.17-node-p6-apollo-pro/vmlinux (specified)
    -k ksyms (specified)
    -l /proc/modules (default)
    -o /lib/modules/2.4.17/ (default)
    -m /boot/System.map-2.4.17 (default)

    Jan 16 14:26:19 c1n04 kernel: invalid operand: 0000
    Jan 16 14:26:19 c1n04 kernel: CPU: 1
    Jan 16 14:26:19 c1n04 kernel: EIP: 0010:[clear_inode+25/160] Not tainted
    Jan 16 14:26:19 c1n04 kernel: EIP: 0010:[<c0148c89>] Not tainted
    Using defaults from ksymoops -t elf32-i386 -a i386
    Jan 16 14:26:19 c1n04 kernel: EFLAGS: 00010202
    Jan 16 14:26:19 c1n04 kernel: eax: 00000001 ebx: e0ff2060 ecx: e0ff2080 edx: e0ff2060
    Jan 16 14:26:19 c1n04 kernel: esi: f895f320 edi: f896e880 ebp: 00000000 esp: f3ee7ee4
    Jan 16 14:26:19 c1n04 kernel: ds: 0018 es: 0018 ss: 0018
    Jan 16 14:26:19 c1n04 kernel: Process rm (pid: 14338, stackpage=f3ee7000)
    Jan 16 14:26:19 c1n04 kernel: Stack: f7964200 f896e880 00000000 c0149651 e0ff2060 c014966a e0ff2060 e296ee20
    Jan 16 14:26:19 c1n04 kernel: e0ff2060 e0ff2ba0 c0147ad6 e0ff2060 e0ff2060 3c45d3da e0ff2ba0 e0ff2060
    Jan 16 14:26:19 c1n04 kernel: e296ee20 e0ff2060 e296ee20 f895e2ba e296ee20 00000001 e0ff2ba0 e296ee20
    Jan 16 14:26:19 c1n04 kernel: Call Trace: [<f896e880>] [iput+177/464] [iput+202/464] [d_delete+86/176] [<f895e2ba>]
    Jan 16 14:26:19 c1n04 kernel: Call Trace: [<f896e880>] [<c0149651>] [<c014966a>] [<c0147ad6>] [<f895e2ba>]
    Jan 16 14:26:19 c1n04 kernel: [<f895e327>] [vfs_unlink+281/368] [lookup_hash+70/192] [sys_unlink+154/256] [system_call+51/56]
    Jan 16 14:26:19 c1n04 kernel: [<f895e327>] [<c0140c19>] [<c013fb86>] [<c0140d0a>] [<c0106f1b>]
    Jan 16 14:26:19 c1n04 kernel: Code: 0f 0b 8b 83 08 01 00 00 a9 10 00 00 00 75 02 0f 0b a9 20 00

    >>EIP; c0148c88 <clear_inode+18/a0> <=====
    Trace; f896e880 <[nfs]nfs_sops+0/60>
    Trace; f896e880 <[nfs]nfs_sops+0/60>
    Trace; c0149650 <iput+b0/1d0>
    Trace; c014966a <iput+ca/1d0>
    Trace; c0147ad6 <d_delete+56/b0>
    Trace; f895e2ba <[nfs]nfs_safe_remove+11a/140>
    Trace; f895e326 <[nfs]nfs_unlink+46/60>
    Trace; f895e326 <[nfs]nfs_unlink+46/60>
    Trace; c0140c18 <vfs_unlink+118/170>
    Trace; c013fb86 <lookup_hash+46/c0>
    Trace; c0140d0a <sys_unlink+9a/100>
    Trace; c0106f1a <system_call+32/38>
    Code; c0148c88 <clear_inode+18/a0>
    00000000 <_EIP>:
    Code; c0148c88 <clear_inode+18/a0> <=====
    0: 0f 0b ud2a <=====
    Code; c0148c8a <clear_inode+1a/a0>
    2: 8b 83 08 01 00 00 mov 0x108(%ebx),%eax
    Code; c0148c90 <clear_inode+20/a0>
    8: a9 10 00 00 00 test $0x10,%eax
    Code; c0148c94 <clear_inode+24/a0>
    d: 75 02 jne 11 <_EIP+0x11> c0148c98 <clear_inode+28/a0>
    Code; c0148c96 <clear_inode+26/a0>
    f: 0f 0b ud2a
    Code; c0148c98 <clear_inode+28/a0>
    11: a9 20 00 00 00 test $0x20,%eax

    nfs 73692 2 (autoclean)
    nfsd 67488 8 (autoclean)
    lockd 47808 1 (autoclean) [nfs nfsd]
    sunrpc 64500 1 (autoclean) [nfs nfsd lockd]
    autofs4 8548 2 (autoclean)
    If some fields are empty or look unusual you may have an old version.
    Compare to the current minimal requirements in Documentation/Changes.

    Linux c1n04 2.4.17 #1 SMP Wed Dec 26 11:56:55 EST 2001 i686 unknown

    Gnu C 2.96
    Gnu make 3.79.1
    util-linux 2.11f
    mount 2.11g
    modutils 2.4.12
    e2fsprogs 1.25
    Linux C Library 2.2.4
    Dynamic linker (ldd) 2.2.4
    Procps 2.0.7
    Net-tools 1.60
    Console-tools 0.3.3
    Sh-utils 2.0.11
    Modules Loaded nfs nfsd lockd sunrpc autofs4
    00:00.0 Host bridge: VIA Technologies, Inc. VT8633 [Apollo Pro266] (rev 01)
    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: 8
    Region 0: Memory at d0000000 (32-bit, prefetchable) [size=16M]
    Capabilities: [a0] AGP version 2.0
    Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2
    Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>
    Capabilities: [c0] 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-

    00:01.0 PCI bridge: VIA Technologies, Inc. VT8633 [Apollo Pro266 AGP] (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: 0
    Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
    I/O behind bridge: 0000f000-00000fff
    Memory behind bridge: fff00000-000fffff
    Prefetchable memory behind bridge: fff00000-000fffff
    BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
    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-

    00:0a.0 VGA compatible controller: Silicon Integrated Systems [SiS] 86C326 (rev 0b) (prog-if 00 [VGA])
    Subsystem: Silicon Integrated Systems [SiS] SiS6326 GUI Accelerator
    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 (500ns min)
    Interrupt: pin A routed to IRQ 11
    Region 0: Memory at d2000000 (32-bit, prefetchable) [size=8M]
    Region 1: Memory at d2800000 (32-bit, non-prefetchable) [size=64K]
    Region 2: I/O ports at d000 [size=128]
    Expansion ROM at <unassigned> [disabled] [size=64K]
    Capabilities: [40] 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-

    00:0b.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139 (rev 10)
    Subsystem: Realtek Semiconductor Co., Ltd. RT8139
    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 (8000ns min, 16000ns max)
    Interrupt: pin A routed to IRQ 10
    Region 0: I/O ports at d400 [size=256]
    Region 1: Memory at d2810000 (32-bit, non-prefetchable) [size=256]
    Expansion ROM at <unassigned> [disabled] [size=64K]

    00:11.0 ISA bridge: VIA Technologies, Inc. VT8233 PCI to ISA Bridge
    Subsystem: VIA Technologies, Inc.: Unknown device 0000
    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: 0
    Capabilities: [c0] 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-

    00:11.1 IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 06) (prog-if 8a [Master SecP PriP])
    Subsystem: VIA Technologies, Inc. Bus Master IDE
    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
    Region 4: I/O ports at d800 [size=16]
    Capabilities: [c0] 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-

    processor : 0
    vendor_id : GenuineIntel
    cpu family : 6
    model : 8
    model name : Pentium III (Coppermine)
    stepping : 6
    cpu MHz : 1011.230
    cache size : 256 KB
    fdiv_bug : no
    hlt_bug : no
    f00f_bug : no
    coma_bug : no
    fpu : yes
    fpu_exception : yes
    cpuid level : 2
    wp : yes
    flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
    bogomips : 2018.50

    processor : 1
    vendor_id : GenuineIntel
    cpu family : 6
    model : 8
    model name : Pentium III (Coppermine)
    stepping : 6
    cpu MHz : 1011.230
    cache size : 256 KB
    fdiv_bug : no
    hlt_bug : no
    f00f_bug : no
    coma_bug : no
    fpu : yes
    fpu_exception : yes
    cpuid level : 2
    wp : yes
    flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
    bogomips : 2018.50

    Linux version 2.4.17 (root@fs) (gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-101)) #1 SMP Wed Dec 26 11:56:55 EST 2001
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