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    SubjectOops on 2.5.15 with ext3 & AIM 7 shared workload
    I've recently built a 2x300MHz P2 system with 512MB of memory for a simple
    x86 testbed. To start with, I ran the AIM VII shared workload on the
    system, using the 18 SCSI disks that I have available with ext2
    filesystems. I got the following oops when I rebooted and started the run
    with ext3. This was only at the simulated '100 users' load point; the
    system is capable of ~1100 simulated users (i.e. the system was hardly
    heavily loaded). Does this look familiar to anyone, or is there
    somehting anyone needs me to do? Thanks!

    - Pete

    Assertion failure in journal_commit_transaction() at commit.c:523:
    "buffer_jdirty(bh)"
    kernel BUG at commit.c:523!
    invalid operand: 0000
    CPU: 0
    EIP: 0010:[journal_commit_transaction+3278/4226] Not tainted
    EIP: 0010:[<c016ebde>] Not tainted
    EFLAGS: 00010286
    eax: 0000005a ebx: c4fce820 ecx: c033e4a0 edx: dd943040
    esi: c9acca30 edi: 00000009 ebp: c3ffb2a0 esp: c504fe28
    ds: 0018 es: 0018 ss: 0018
    Process kjournald (pid: 1013, threadinfo=c504e000 task=df56afc0)
    Stack: c029f7e0 c029f7b3 c029f7aa 0000020b c029fc05 00000000 00000fb4
    cd9e604c 00000000 c36a
    Call Trace: [__switch_to+68/304] [schedule+527/1056] [kjournald+581/640]
    [commit_timeout+0/1
    Call Trace: [<c0105a04>] [<c011215f>] [<c0170f45>] [<c0170ce0>]
    [<c0105736>] [kjournald+0/64
    Code: 0f 0b 0b 02 aa f7 29 c0 83 c4 14 e9 82 f9 ff ff 89 f6 68 20

    [root@linux linux-2.5]# ksymoops < oops
    ksymoops 2.4.0 on i686 2.5.15. Options used
    -V (default)
    -k /proc/ksyms (default)
    -l /proc/modules (default)
    -o /lib/modules/2.5.15/ (default)
    -m ./System.map (specified)

    Warning (compare_maps): ksyms_base symbol GPLONLY_idle_cpu not found in
    System.map. Ignorin
    Warning (compare_maps): ksyms_base symbol GPLONLY_set_cpus_allowed not
    found in System.map.
    kernel BUG at commit.c:523!
    invalid operand: 0000
    CPU: 0
    EIP: 0010:[journal_commit_transaction+3278/4226] Not tainted
    EIP: 0010:[<c016ebde>] Not tainted
    Using defaults from ksymoops -t elf32-i386 -a i386
    EFLAGS: 00010286
    eax: 0000005a ebx: c4fce820 ecx: c033e4a0 edx: dd943040
    esi: c9acca30 edi: 00000009 ebp: c3ffb2a0 esp: c504fe28
    ds: 0018 es: 0018 ss: 0018
    ack: c029f7e0 c029f7b3 c029f7aa 0000020b c029fc05 00000000 00000fb4
    cd9e604c 00000000 c36a
    Call Trace: [__switch_to+68/304] [schedule+527/1056] [kjournald+581/640]
    [commit_timeout+0/1
    Call Trace: [<c0105a04>] [<c011215f>] [<c0170f45>] [<c0170ce0>]
    [<c0105736>] [kjournald+0/64
    Code: 0f 0b 0b 02 aa f7 29 c0 83 c4 14 e9 82 f9 ff ff 89 f6 68 20

    >>EIP; c016ebde <journal_commit_transaction+cce/1082> <=====
    Trace; c0105a04 <__switch_to+44/130>
    Trace; c011215f <schedule+20f/420>
    Trace; c0170f45 <kjournald+245/280>
    Trace; c0170ce0 <commit_timeout+0/10>
    Trace; c0105736 <kernel_thread+26/30>
    Code; c016ebde <journal_commit_transaction+cce/1082>
    00000000 <_EIP>:
    Code; c016ebde <journal_commit_transaction+cce/1082> <=====
    0: 0f 0b ud2a <=====
    Code; c016ebe0 <journal_commit_transaction+cd0/1082>
    2: 0b 02 or (%edx),%eax
    Code; c016ebe2 <journal_commit_transaction+cd2/1082>
    4: aa stos %al,%es:(%edi)
    Code; c016ebe3 <journal_commit_transaction+cd3/1082>
    5: f7 29 imul (%ecx),%eax
    Code; c016ebe5 <journal_commit_transaction+cd5/1082>
    7: c0 83 c4 14 e9 82 f9 rolb $0xf9,0x82e914c4(%ebx)
    Code; c016ebec <journal_commit_transaction+cdc/1082>
    e: ff (bad)
    Code; c016ebed <journal_commit_transaction+cdd/1082>
    f: ff 89 f6 68 20 00 decl 0x2068f6(%ecx)


    2 warnings issued. Results may not be reliable.


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