Got an oops this morning on one of our production servers:
SMP Box, stock 2.4.10 kernel all modules compiled in except ethernets.
ksymoops output follows:
ksymoops 2.4.0 on i686 2.4.10. Options used
-v /usr/src/linux/vmlinux (specified)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.10/ (default)
-m /boot/System.map-2.4.10 (default)
Unable to handle kernel NULL pointer dereference at virtual address 00000018
c019fddf
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c019fddf>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010246
eax: f7e74800 ebx: 00000000 ecx: 00000dd3 edx: 6100a443
esi: 00000001 edi: f6e667b8 ebp: 0001edcc esp: db5b3a78
ds: 0018 es: 0018 ss: 0018
Process urchin (pid: 4067, stackpage=db5b3000)
Stack: 00000000 f73952a0 00000079 c0183bde f7e74800 000067b8 c0183b7f
f7e74800
00000000 00000001 db5b3e1c f7e74800 f6e667b8 f745b000 f73ee380
f73e8000
f6e667b8 00000000 cdbdd8dc 000001c8 c019913a db5b3e1c f6e667b8
ffffffff
Call Trace: [<c0183bde>] [<c0183b7f>] [<c019913a>] [<c0190756>]
[<c0199c4a>]
[<c019a322>] [<c018c14c>] [<c0128147>] [<c018d1c0>] [<c018d1cc>]
[<c0126082>]
[<c014da36>] [<c018d2e6>] [<c014dbce>] [<c0142c20>] [<c0135917>]
[<c0144089>]
[<c0136776>] [<c0136ac4>] [<c0106f1b>]
Code: 8b 43 18 a9 00 00 10 00 0f 84 b3 ff ff ff 85 f6 74 0a f6 43
>>EIP; c019fddf <reiserfs_prepare_for_journal+5f/90> <=====
Trace; c0183bde <reiserfs_free_block+be/d0>
Trace; c0183b7f <reiserfs_free_block+5f/d0>
Trace; c019913a <prepare_for_delete_or_cut+71a/800>
Trace; c0190756 <fix_nodes+226/450>
Trace; c0199c4a <reiserfs_cut_from_item+ba/410>
Trace; c019a322 <reiserfs_do_truncate+322/440>
Trace; c018c14c <reiserfs_truncate_file+ac/1e0>
Trace; c0128147 <truncate_inode_pages+67/80>
Trace; c018d1c0 <reiserfs_vfs_truncate_file+0/10>
Trace; c018d1cc <reiserfs_vfs_truncate_file+c/10>
Trace; c0126082 <vmtruncate+172/1a0>
Trace; c014da36 <inode_setattr+26/e0>
Trace; c018d2e6 <reiserfs_setattr+56/60>
Trace; c014dbce <notify_change+6e/f0>
Trace; c0142c20 <cached_lookup+10/50>
Trace; c0135917 <do_truncate+47/60>
Trace; c0144089 <open_namei+419/540>
Trace; c0136776 <filp_open+36/60>
Trace; c0136ac4 <sys_open+34/c0>
Trace; c0106f1b <system_call+33/38>
Code; c019fddf <reiserfs_prepare_for_journal+5f/90>
00000000 <_EIP>:
Code; c019fddf <reiserfs_prepare_for_journal+5f/90> <=====
0: 8b 43 18 mov 0x18(%ebx),%eax <=====
Code; c019fde2 <reiserfs_prepare_for_journal+62/90>
3: a9 00 00 10 00 test $0x100000,%eax
Code; c019fde7 <reiserfs_prepare_for_journal+67/90>
8: 0f 84 b3 ff ff ff je ffffffc1 <_EIP+0xffffffc1>
c019fda0 <reiserfs_prepare_for_journal+20/90>
Code; c019fded <reiserfs_prepare_for_journal+6d/90>
e: 85 f6 test %esi,%esi
Code; c019fdef <reiserfs_prepare_for_journal+6f/90>
10: 74 0a je 1c <_EIP+0x1c> c019fdfb
<reiserfs_prepare_for_journal+7b/90>
Code; c019fdf1 <reiserfs_prepare_for_journal+71/90>
12: f6 43 00 00 testb $0x0,0x0(%ebx)
Any ideas?
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Daniel Bohling
NewsFactor Network
