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    Subjectkernel BUG at <bad filename>:50307!
    Hello all,

    I got this bug (see below) in my logs, the system showed with "top" an
    increasing load average of 11 and more but with an cpu-idle of 99% and
    no processes used mentionable resources, there were 6 zombies. A
    shutdown was not possible most of the samba processes didn't respond to
    a kill.
    Before the exception the server was -as usual- under heavy load of samba
    processes 4-5 clients, with many automated activity (batch-processes
    with image processing).

    What does this bug mean?

    Hardware-Details:
    * Device sdc (on an easy-raid system) has an XFS Filesystem.
    * uname -a
    Linux pers109 2.6.17.8 #1 SMP Mon Aug 7 11:04:08 CEST 2006 i686 i686
    i386 GNU/Linux
    * lspci
    0000:00:00.0 Host bridge: Intel Corporation E7501 Memory Controller Hub
    (rev 01)
    0000:00:02.0 PCI bridge: Intel Corporation E7500/E7501 Hub Interface B
    PCI-to-PCI Bridge (rev 01)
    0000:00:1d.0 USB Controller: Intel Corporation 82801CA/CAM USB (Hub #1)
    (rev 02)
    0000:00:1d.1 USB Controller: Intel Corporation 82801CA/CAM USB (Hub #2)
    (rev 02)
    0000:00:1d.2 USB Controller: Intel Corporation 82801CA/CAM USB (Hub #3)
    (rev 02)
    0000:00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 42)
    0000:00:1f.0 ISA bridge: Intel Corporation 82801CA LPC Interface
    Controller (rev 02)
    0000:00:1f.1 IDE interface: Intel Corporation 82801CA Ultra ATA Storage
    Controller (rev 02)
    0000:01:1c.0 PIC: Intel Corporation 82870P2 P64H2 I/OxAPIC (rev 04)
    0000:01:1d.0 PCI bridge: Intel Corporation 82870P2 P64H2 Hub PCI Bridge
    (rev 04)
    0000:01:1e.0 PIC: Intel Corporation 82870P2 P64H2 I/OxAPIC (rev 04)
    0000:01:1f.0 PCI bridge: Intel Corporation 82870P2 P64H2 Hub PCI Bridge
    (rev 04)
    0000:02:05.0 SCSI storage controller: Adaptec AIC-7902 U320 (rev 03)
    0000:02:05.1 SCSI storage controller: Adaptec AIC-7902 U320 (rev 03)
    0000:03:03.0 Ethernet controller: Intel Corporation 82544GC Gigabit
    Ethernet Controller (LOM) (rev 02)
    0000:04:01.0 Ethernet controller: Intel Corporation 82540EM Gigabit
    Ethernet Controller (rev 02)
    0000:04:02.0 VGA compatible controller: ATI Technologies Inc Rage XL
    (rev 27)
    ===

    cat /proc/cpuinfo
    processor : 0
    vendor_id : GenuineIntel
    cpu family : 15
    model : 2
    model name : Intel(R) Xeon(TM) CPU 2.80GHz
    stepping : 7
    cpu MHz : 1595.130
    cache size : 512 KB
    physical id : 0
    siblings : 2
    core id : 0
    cpu cores : 1
    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 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid
    bogomips : 3193.91
    ===


    /usr/local/samba/sbin/smbd -V
    Version 3.0.20

    _________________________
    /var/log/messages extract
    --------------------------


    Aug 15 15:01:02 pers109 kernel: Access to block zero: fs: <sdc1> inode:
    254474718 start_block : 0 start_off : c0a0b0e8a099
    0 blkcnt : 90000 extent-state : 0
    Aug 15 15:01:02 pers109 kernel: ------------[ cut here ]------------
    Aug 15 15:01:02 pers109 kernel: kernel BUG at <bad filename>:50307!
    Aug 15 15:01:02 pers109 kernel: invalid opcode: 0000 [#1]
    Aug 15 15:01:02 pers109 kernel: SMP
    Aug 15 15:01:02 pers109 kernel: CPU: 0
    Aug 15 15:01:02 pers109 kernel: EIP: 0060:[<c0257d64>] Not tainted VLI
    Aug 15 15:01:02 pers109 kernel: EFLAGS: 00010246 (2.6.17.8 #1)
    Aug 15 15:01:02 pers109 kernel: eax: c0479f84 ebx: c0436464 ecx:
    c046c9bc edx: 00000282
    Aug 15 15:01:02 pers109 kernel: esi: cea51cb0 edi: c0526120 ebp:
    00000000 esp: cea51b70
    Aug 15 15:01:02 pers109 kernel: ds: 007b es: 007b ss: 0068
    Aug 15 15:01:02 pers109 kernel: Process smbd (pid: 18095,
    threadinfo=cea50000 task=c212e0b0)
    Aug 15 15:01:02 pers109 kernel: Stack: c04452ac c042855c c0526120
    00000282 f7204db0 cea51cb0 00000000 e31d5b00
    Aug 15 15:01:02 pers109 kernel: c01fe13d 00000000 c0436464
    c49083e0 0f2af9de 00000000 00000000 00000000
    Aug 15 15:01:02 pers109 kernel: 0e8a0990 000c0a0b 00090000
    00000000 00000000 cea51cb0 00000000 00000000
    Aug 15 15:01:02 pers109 kernel: Call Trace:
    Aug 15 15:01:02 pers109 kernel: <c01fe13d> <c01ff637>
    Aug 15 15:01:02 pers109 kernel: <c0115e51> <c0115e51>
    Aug 15 15:01:02 pers109 kernel: <c015987b> <c015a791>
    Aug 15 15:01:03 pers109 kernel: <c0140a91> <c0254ff3>
    Aug 15 15:01:03 pers109 kernel: <c039c7d2> <c017187e>
    Aug 15 15:01:03 pers109 kernel: <c0255653> <c0395c89>
    Aug 15 15:01:03 pers109 kernel: <c01696c8> <c0288a3a>
    Aug 15 15:01:03 pers109 kernel: <c025091f> <c0157383>
    Aug 15 15:01:03 pers109 kernel: <c012d613> <c01574a9>
    Aug 15 15:01:03 pers109 kernel: <c015774e> <c01027df>
    Aug 15 15:01:03 pers109 kernel: Code: c0 c7 44 24 08 20 61 52 c0 c7 04
    24 ac 52 44 c0 89 44 24 04 e8 5b 34 ec ff b8 84 9f
    47 c0 8b 54 24 0c e8 bc fa 1a 00 85 ed 75 02 <0f> 0b 83 c4 10 5b 5e 5f
    5d c3 55 b8 07 00 00 00 57 bf 20 61 52
    Aug 15 15:01:03 pers109 kernel: EIP: [<c0257d64>] SS:ESP 0068:cea51b70


    thanks in advance,
    martin


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