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    SubjectTwo Stack Traces - please respond if you can.
    There are two stack traces in this email. I was curious if they both are
    bad output, as the stack may be corrupt, which I feel may be causing
    these panics.

    The recent, is from a 2.4.19-aa1 kernel, on my production oracle db
    which happened today.
    The old, is from a 2.4.19-aa1 kernel, on an identical box, running
    oracle, but occurred during stress testing. Any help regarding these two
    stacks is extremely welcome, as this is a rather urgent issue.


    <recent ksymoops output>

    ksymoops 2.4.1 on i686 2.4.19. Options used
    -V (specified)
    -k /proc/ksyms (specified)
    -l /proc/modules (default)
    -o /lib/modules/2.4.19/ (default)
    -m /boot/ (default)

    Oops: 0000 2.4.19 #1 SMP Wed Oct 16 17:02:35 CDT 2002
    CPU: 0
    EIP: 0010:[<c01164ee>] Not tainted
    Using defaults from ksymoops -t elf32-i386 -a i386
    EFLAGS: 00010007
    eax: c031e000 ebx: c034d8a8 ecx: 00000000 edx: ffffffd4
    esi: c034d880 edi: 00000080 ebp: c031ffc8 esp: c031ff98
    ds: 0018 es: 0018 ss: 0018
    Process swapper (pid: 0, stackpage=c031f000)
    Stack: c034d880 00000019 c031e000 c031e000 ffffffd4 0008e000 00000000
    c0100018 c031e000 c0106e60 c0105000 0008e000 c0106ee9 0002080e
    c03207a5 c031e000 00000000 c02a6da0 00200000 00200000 00200000
    Call Trace: [<c0106e60>] [<c0105000>] [<c0106ee9>]
    Code: 8b 72 58 8b 40 5c 85 f6 89 45 d4 75 35 89 42 5c f0 ff 40 14

    >>EIP; c01164ee <schedule+1ae/390> <=====
    Trace; c0106e60 <default_idle+0/40>
    Trace; c0105000 <_stext+0/0>
    Trace; c0106ee9 <cpu_idle+29/30>
    Code; c01164ee <schedule+1ae/390>
    00000000 <_EIP>:
    Code; c01164ee <schedule+1ae/390> <=====
    0: 8b 72 58 mov 0x58(%edx),%esi <=====
    Code; c01164f1 <schedule+1b1/390>
    3: 8b 40 5c mov 0x5c(%eax),%eax
    Code; c01164f4 <schedule+1b4/390>
    6: 85 f6 test %esi,%esi
    Code; c01164f6 <schedule+1b6/390>
    8: 89 45 d4 mov %eax,0xffffffd4(%ebp)
    Code; c01164f9 <schedule+1b9/390>
    b: 75 35 jne 42 <_EIP+0x42> c0116530
    Code; c01164fb <schedule+1bb/390>
    d: 89 42 5c mov %eax,0x5c(%edx)
    Code; c01164fe <schedule+1be/390>
    10: f0 ff 40 14 lock incl 0x14(%eax)

    <0> Kernel panic: Attempted to kill the idle task!

    </recent ksymoops output>

    <old ksymoops output>

    ksymoops 2.4.1 on i686 2.4.19. Options used
    -V (specified)
    -k /proc/ksyms (specified)
    -l /proc/modules (default)
    -o /lib/modules/2.4.19/ (default)
    -m /boot/ (default)

    Oops: 0000 2.4.19 #1 SMP Mon Oct 7 11:01:05 CDT 2002
    CPU: 2
    EIP: 0010:[<c01a71b7>] Tainted: P
    Using defaults from ksymoops -t elf32-i386 -a i386
    EFLAGS: 00010202
    eax: d6f37b7c ebx: 00000001 ecx: 00000000 edx: e5c5f280
    esi: d6f37b7c edi: e5c5f280 ebp: c93b2400 esp: c706fcb0
    ds: 0018 es: 0018 ss: 0018
    Process swapper (pid: 0, stackpage=c706f000)
    Stack: c01a6c7b e5c5f280 c93b2400 d6f37b7c 00000202 c93b2400 d6f37b7c
    00004ca8 c93b2400 d6f37b7c 00001636 00004ca8 c01d2f74 d6f37b7c
    00000286 0000000a c93b2400 d041ceb8 00001636 00004ca8 00000000
    Call Trace: [<c01a6c7b>] [<c01d2f74>] [<c01d2d00>] [<c01c798e>]
    [<c01c7acb>] [<c01c6804>] [<c01dfc38>] [<c01e0013>] [<c023ad55>]
    [<c023b232>] [<d984db87>] [<c024574f>] [<d9854d63>] [<c0234629>]
    [<c011ef8b>] [<c011ee31>] [<c011ebbb>] [<c010a97e>] [<c0106e60>]
    [<c0106e60>] [<c0106e89>] [<c0106ee4>] [<c011a589>]
    Code: 8b 41 20 89 42 44 85 c0 75 e0 8b 42 34 85 c0 74 07 c7 42 34

    >>EIP; c01a71b7 <xfs_buf_iodone_callbacks+b7/180> <=====
    Trace; c01a6c7b <xfs_buf_item_unlock+8b/a0>
    Trace; c01d2f74 <xfs_trans_chunk_committed+1a4/208>
    Trace; c01d2d00 <xfs_trans_committed+10/e0>
    Trace; c01c798e <xlog_state_do_callback+14e/260>
    Trace; d9848583 <END_OF_CODE+11796564/????>
    Trace; c01c7acb <xlog_state_done_syncing+2b/70>
    Trace; c01c6804 <xlog_iodone+44/a0>
    Trace; c01dfc38 <pagebuf_iodone+8/80>
    Trace; c01e0013 <_end_pagebuf_page_io_multi+d3/110>
    Trace; c023ad55 <scsi_merge_requests_fn_dc+5e5/880>
    Trace; c023ae87 <scsi_merge_requests_fn_dc+717/880>
    Trace; c023b232 <scsi_init_io_vd+b2/480>
    Trace; d984db87 <END_OF_CODE+1179bb68/????>
    Trace; c024574f <cdrom_read_block+8f/d0>
    Trace; d9854d63 <END_OF_CODE+117a2d44/????>
    Trace; c0234629 <scsi_partsize+69/140>
    Trace; c0234350 <print_req_sense+0/20>
    Trace; c011ef8b <bh_action+4b/80>
    Trace; c011ee31 <tasklet_hi_action+61/a0>
    Trace; c011ebbb <do_softirq+7b/e0>
    Trace; c010a97e <do_IRQ+fe/110>
    Trace; c0106e60 <default_idle+0/40>
    Trace; c010d248 <call_do_IRQ+5/d>
    Trace; c0106e60 <default_idle+0/40>
    Trace; c0106e89 <default_idle+29/40>
    Trace; c0106ee4 <cpu_idle+24/30>
    Trace; c011a589 <printk+119/140>
    Code; c01a71b7 <xfs_buf_iodone_callbacks+b7/180>
    00000000 <_EIP>:
    Code; c01a71b7 <xfs_buf_iodone_callbacks+b7/180> <=====
    0: 8b 41 20 mov 0x20(%ecx),%eax <=====
    Code; c01a71ba <xfs_buf_iodone_callbacks+ba/180>
    3: 89 42 44 mov %eax,0x44(%edx)
    Code; c01a71bd <xfs_buf_iodone_callbacks+bd/180>
    6: 85 c0 test %eax,%eax
    Code; c01a71bf <xfs_buf_iodone_callbacks+bf/180>
    8: 75 e0 jne ffffffea <_EIP+0xffffffea>
    c01a71a1 <xfs_buf_iodone_callbacks+a1/180>
    Code; c01a71c1 <xfs_buf_iodone_callbacks+c1/180>
    a: 8b 42 34 mov 0x34(%edx),%eax
    Code; c01a71c4 <xfs_buf_iodone_callbacks+c4/180>
    d: 85 c0 test %eax,%eax
    Code; c01a71c6 <xfs_buf_iodone_callbacks+c6/180>
    f: 74 07 je 18 <_EIP+0x18> c01a71cf
    Code; c01a71c8 <xfs_buf_iodone_callbacks+c8/180>
    11: c7 42 34 00 00 00 00 movl $0x0,0x34(%edx)

    <0>Kernel panic: Aiee, killing interupt handler!

    </old ksymoops output>

    --The GrandMaster
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