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    SubjectRe: 2.4.0-test11pre2-ac1 and previous problem
    On Sat, Nov 11, 2000 at 11:25:00AM +1100, Andrew Morton wrote:

    > > NMI Watchdog detected LOCKUP on CPU3, registers:

    > Oh no. Another one. Could you please try this attached
    > patch (against test11-pre2) and see if the diagnostics
    > come out?

    And yet another one... I applied your patch, and ran my oopses through
    ksymoops, results attached.

    Kernel: 2.4.0-test11-pre2 + reiserfs-3.6.18
    2 * P-II 350, 256 MB RAM, no special hardware, AFAIK.

    Of course, more details are available.

    Regards,
    --
    Jasper Spaans <jasper@spaans.ds9a.nl>
    ksymoops 2.3.4 on i686 2.4.0-test11. Options used
    -V (default)
    -k /proc/ksyms (default)
    -l /proc/modules (default)
    -o /lib/modules/2.4.0-test11/ (default)
    -m /boot/System.map-2.4.0-test11-pre2 (specified)

    Nov 11 13:37:08 spaans kernel: NMI Watchdog detected LOCKUP on CPU1, registers:
    Nov 11 13:37:08 spaans kernel: CPU: 1
    Nov 11 13:37:08 spaans kernel: EIP: 0010:[tvecs+21104/42928]
    Nov 11 13:37:08 spaans kernel: EFLAGS: 00000086
    Nov 11 13:37:08 spaans kernel: eax: 00000000 ebx: ce780000 ecx: 00000000 edx: ffffffff
    Nov 11 13:37:08 spaans kernel: esi: 00000002 edi: 00000000 ebp: cd0f1eb0 esp: cd0f1ea8
    Nov 11 13:37:08 spaans kernel: ds: 0018 es: 0018 ss: 0018
    Nov 11 13:37:08 spaans kernel: Process mysqld (pid: 5799, stackpage=cd0f1000)
    Nov 11 13:37:08 spaans kernel: Stack: ce780000 00000021 00000000 c01152ea ce780000 00000021 00000086 c01153c6
    Nov 11 13:37:08 spaans kernel: 00000021 cd0f1f04 ce780000 00040001 00000000 cd0f0000 00000021 c011589a
    Nov 11 13:37:08 spaans kernel: 00000021 cd0f1f04 ce780000 cd0f0000 c1458000 cd0f0000 ce780000 00000021
    Nov 11 13:37:08 spaans kernel: Call Trace: [do_ioctl+334/820] [do_ioctl+554/820] [apm+358/644] [will_become_orphaned_pgrp+14/124] [do_fork+211/2788] [do_fork+1188/2788] [do_fork+1274/2788]
    Nov 11 13:37:08 spaans kernel: Code: 80 3d 00 44 2e c0 00 f3 90 7e f5 e9 67 59 ee ff 80 3b 00 f3
    Using defaults from ksymoops -t elf32-i386 -a i386

    Code; 00000000 Before first symbol
    00000000 <_EIP>:
    Code; 00000000 Before first symbol
    0: 80 3d 00 44 2e c0 00 cmpb $0x0,0xc02e4400
    Code; 00000007 Before first symbol
    7: f3 90 repz nop
    Code; 00000009 Before first symbol
    9: 7e f5 jle 0 <_EIP>
    Code; 0000000b Before first symbol
    b: e9 67 59 ee ff jmp ffee5977 <_EIP+0xffee5977> ffee5977 <END_OF_CODE+2ec39fd0/????>
    Code; 00000010 Before first symbol
    10: 80 3b 00 cmpb $0x0,(%ebx)
    Code; 00000013 Before first symbol
    13: f3 00 00 repz add %al,(%eax)

    Nov 11 13:37:08 spaans kernel: NMI Watchdog detected LOCKUP on CPU0, registers:
    Nov 11 13:37:08 spaans kernel: CPU: 0
    Nov 11 13:37:08 spaans kernel: EIP: 0010:[__down+339/588]
    Nov 11 13:37:08 spaans kernel: EFLAGS: 00000097
    Nov 11 13:37:08 spaans kernel: eax: c02e4420 ebx: ca6c0000 ecx: 00000000 edx: ffffffff
    Nov 11 13:37:08 spaans kernel: esi: c02e4420 edi: ca6c1fa8 ebp: ca6c1fa8 esp: ca6c1f90
    Nov 11 13:37:08 spaans kernel: ds: 0018 es: 0018 ss: 0018
    Nov 11 13:37:08 spaans kernel: Process mysqld (pid: 5801, stackpage=ca6c1000)
    Nov 11 13:37:08 spaans kernel: Stack: c0234797 ca6c0000 40083890 bf5ffc00 fffffff2 00000008 ca6c1fbc c0119ad4
    Nov 11 13:37:08 spaans kernel: 000016a9 00000000 bf5ff8e8 bf5ff8b4 c010b203 000016a9 00000000 bf5ff8e8
    Nov 11 13:37:08 spaans kernel: 40083890 bf5ffc00 bf5ff8b4 0000009c 0000002b 0000002b 0000009c 401a03e4
    Nov 11 13:37:08 spaans kernel: Call Trace: [tvecs+21059/42928] [proc_sel+68/140] [restore_sigcontext+63/328]
    Nov 11 13:37:08 spaans kernel: Code: 83 38 01 78 fb f0 ff 08 0f 88 ef ff ff ff c3 90 90 90 90 90

    Code; 00000000 Before first symbol
    00000000 <_EIP>:
    Code; 00000000 Before first symbol
    0: 83 38 01 cmpl $0x1,(%eax)
    Code; 00000003 Before first symbol
    3: 78 fb js 0 <_EIP>
    Code; 00000005 Before first symbol
    5: f0 ff 08 lock decl (%eax)
    Code; 00000008 Before first symbol
    8: 0f 88 ef ff ff ff js fffffffd <_EIP+0xfffffffd> fffffffd <END_OF_CODE+2ed54656/????>
    Code; 0000000e Before first symbol
    e: c3 ret
    Code; 0000000f Before first symbol
    f: 90 nop
    Code; 00000010 Before first symbol
    10: 90 nop
    Code; 00000011 Before first symbol
    11: 90 nop
    Code; 00000012 Before first symbol
    12: 90 nop
    Code; 00000013 Before first symbol
    13: 90 nop

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