Re: buffer.c:1493 BUG [ac-22-class+reiserfs]

From: Mike Galbraith (mikeg@weiden.de)
Date: Wed Jun 21 2000 - 09:12:22 EST


On Wed, 21 Jun 2000, Mike Galbraith wrote:

> I also encountered this exact oops (once).. no added patches here.

And today, I encountered the same oops in ac22.riel.. doesn't seem to
be classzone specific.

        -Mike

Linux version 2.4.0-test1-ac22 (root@el-kaboom) (gcc version gcc-2.95.2 19991024 (release)) #1 Tue Jun 20 08:40:09 CEST 2000
...
kernel BUG at buffer.c:1459!
invalid operand: 0000
CPU: 0
EIP: 0010:[<c0133b3f>]
EFLAGS: 00010282
eax: 0000001d ebx: c7806760 ecx: c0287414 edx: c0287414
esi: c1223d48 edi: c10def4c ebp: c7806760 esp: c3c05ee4
ds: 0018 es: 0018 ss: 0018
Process umount (pid: 4224, stackpage=c3c05000)
Stack: c0229e9e c022a29a 000005b3 c10def4c c1223d48 00000000 c7444ac4 00000000
       c0125483 c10def4c c7444a00 c3c05f44 c7f86040 00000000 c014579a c7444ac4
       c3c05f44 c3c05f44 c01458b3 c3c05f44 c7f86000 c7f86000 00000000 08051040
Call Trace: [<c0229e9e>] [<c022a29a>] [<c0125483>] [<c014579a>] [<c01458b3>] [<c0136eff>] [<c01372c1>]
       [<c01373f3>] [<c0137470>] [<c010b4ec>]
Code: 0f 0b 83 c4 0c 8b 43 28 89 44 24 10 53 e8 df fe ff ff 83 c4

>>EIP; c0133b3f <block_destroy_buffers+53/1b0> <=====
Trace; c0229e9e <max_page_launder+4212/26014>
Trace; c022a29a <max_page_launder+460e/26014>
Trace; c0125483 <truncate_all_inode_pages+53/1b0>
Trace; c014579a <dispose_list+2a/4c>
Trace; c01458b3 <invalidate_inodes+4b/58>
Trace; c0136eff <kill_super+5f/ec>
Trace; c01372c1 <do_umount+1c9/1d4>
Trace; c01373f3 <sys_umount+127/198>
Trace; c0137470 <sys_oldumount+c/10>
Trace; c010b4ec <system_call+34/38>
Code; c0133b3f <block_destroy_buffers+53/1b0>
00000000 <_EIP>:
Code; c0133b3f <block_destroy_buffers+53/1b0> <=====
   0: 0f 0b ud2a <=====
Code; c0133b41 <block_destroy_buffers+55/1b0>
   2: 83 c4 0c add $0xc,%esp
Code; c0133b44 <block_destroy_buffers+58/1b0>
   5: 8b 43 28 mov 0x28(%ebx),%eax
Code; c0133b47 <block_destroy_buffers+5b/1b0>
   8: 89 44 24 10 mov %eax,0x10(%esp,1)
Code; c0133b4b <block_destroy_buffers+5f/1b0>
   c: 53 push %ebx
Code; c0133b4c <block_destroy_buffers+60/1b0>
   d: e8 df fe ff ff call fffffef1 <_EIP+0xfffffef1> c0133a30 <unmap_buffer+0/58>
Code; c0133b51 <block_destroy_buffers+65/1b0>
  12: 83 c4 00 add $0x0,%esp

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