Re: 2.4.22pre6aa1

From: Sergey S. Kostyliov (
Date: Wed Jul 23 2003 - 06:21:15 EST

Hello Andrea,

This is during `swapoff -a`, on a heavily loaded box:

ksymoops 2.4.9 on i686 2.4.22-pre6aa1. Options used
     -V (default)
     -k /proc/ksyms (default)
     -l /proc/modules (default)
     -o /lib/modules/2.4.22-pre6aa1/ (default)
     -m /usr/src/linux/ (default)

Warning: You did not tell me where to find symbol information. I will
assume that the log matches the kernel and modules that are running
right now and I'll use the default options above for symbol resolution.
If the current kernel and/or modules do not match the log, you can get
more accurate output by telling me the kernel version and where to find
map, modules, ksyms etc. ksymoops -h explains the options.

Error (regular_file): read_system_map stat /usr/src/linux/ failed
ksymoops: No such file or directory
kernel BUG at shmem.c:490!
invalid operand: 0000 2.4.22-pre6aa1 #1 SMP Thu Jul 17 20:24:29 MSD 2003
CPU: 0
EIP: 0010:[<801424cb>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010202
eax: 00000508 ebx: 8d846a00 ecx: c7919800 edx: c79198fc
esi: c79198fc edi: 8d846b40 ebp: 97b999a0 esp: af853e34
ds: 0018 es: 0018 ss: 0018
Process oracle (pid: 23274, stackpage=af853000)
Stack: 8d846a00 8d846a00 80142460 c7919800 80161abf 8d846a00 00000000 00000000
       97b999a0 8d846a00 8d846a00 8015e98e 8d846a00 97b999a0 97b999a0 97b999b8
       8015ea5a 97b999a0 803349e0 8d141860 c78f6fa0 80148acb 97b999a0 9eb9f774
Call Trace: [<80142460>] [<80161abf>] [<8015e98e>] [<8015ea5a>]
  [<80132695>] [<8011c35a>] [<80121c66>] [<80128069>] [<80127f13>]
  [<801073a8>] [<801236c4>] [<80123562>] [<80127546>] [<80115b50>]
Code: 0f 0b ea 01 24 c1 27 80 eb cd 0f 0b e9 01 24 c1 27 80 eb bc

>>EIP; 801424cb <alloc_pages_node+75b/2c70> <=====

Trace; 80142460 <alloc_pages_node+6f0/2c70>
Trace; 80161abf <iput+14f/2b0>
Trace; 8015e98e <lock_may_write+21e/260>
Trace; 8015ea5a <dput+8a/150>
Trace; 80148acb <fput+db/110>
Trace; 80132695 <do_brk+3d5/700>
Trace; 8011c35a <remove_wait_queue+4fa/d10>
Trace; 80121c66 <exit_mm+4f6/770>
Trace; 80128069 <unblock_all_signals+109/150>
Trace; 80127f13 <flush_signal_handlers+103/110>
Trace; 80128115 <dequeue_signal+65/4f0>
Trace; 801073a8 <__read_lock_failed+11a8/17c0>
Trace; 801236c4 <tasklet_kill+f4/120>
Trace; 80123562 <__tasklet_hi_schedule+162/1a0>
Trace; 80127546 <del_timer_sync+a16/ca0>
Trace; 80115b50 <smp_call_function+ce0/19f0>
Trace; 80117b80 <__verify_write+230/ab0>
Trace; 80107614 <__read_lock_failed+1414/17c0>

Code; 801424cb <alloc_pages_node+75b/2c70>
00000000 <_EIP>:
Code; 801424cb <alloc_pages_node+75b/2c70> <=====
   0: 0f 0b ud2a <=====
Code; 801424cd <alloc_pages_node+75d/2c70>
   2: ea 01 24 c1 27 80 eb ljmp $0xeb80,$0x27c12401
Code; 801424d4 <alloc_pages_node+764/2c70>
   9: cd 0f int $0xf
Code; 801424d6 <alloc_pages_node+766/2c70>
   b: 0b e9 or %ecx,%ebp
Code; 801424d8 <alloc_pages_node+768/2c70>
   d: 01 24 c1 add %esp,(%ecx,%eax,8)
Code; 801424db <alloc_pages_node+76b/2c70>
  10: 27 daa
Code; 801424dc <alloc_pages_node+76c/2c70>
  11: 80 eb bc sub $0xbc,%bl

1 warning and 1 error issued. Results may not be reliable.

                   Best regards,
                   Sergey S. Kostyliov <>
                   Public PGP key:
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This archive was generated by hypermail 2b29 : Wed Jul 23 2003 - 22:00:49 EST