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SubjectOops 2.4.9
Overnight I had a couple of oopsen on my Athlon box, now I've had some
more when running rpm and ksymoops.

System is RedHat 7.1, Athlon 800, Abit KA7-100 m/b.

The 5th August CVS snapshot of the ieee1394 code had been applied (and
worked without incident for a month or so).

First, the one just now, when running rpm:


ksymoops 2.4.3 on i686 2.4.9. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.9/ (default)
-m /boot/System.map-2.4.9 (specified)

kernel BUG at inode.c:677!
invalid operand: 0000
CPU: 0
EIP: 0010:[<c0141e3d>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010282
eax: 0000001b ebx: d91824c8 ecx: 00000005 edx: dee91cc0
esi: d91824c0 edi: 64646120 ebp: cb187e7c esp: cb187e54
ds: 0018 es: 0018 ss: 0018
Process rpm (pid: 15330, stackpage=cb187000)
Stack: c0247819 c02478b5 000002a5 00000000 000001d3 d918da48 c9834388 00000004
000000d2 00000028 00000001 c0141f1d 00000077 c0128a40 00000006 000000d2
00000006 000000d2 cb186000 00000010 00000000 000000d2 c0128ba8 000000d2
Call Trace: [<c0141f1d>] [<c0128a40>] [<c0128ba8>] [<c012979e>] [<c0150120>]
[<c01223e1>] [<c0122627>] [<c01229f0>] [<c0122930>] [<c012ed05>] [<c014f110>]
[<c012eb7e>] [<c0106ecb>]
Code: 0f 0b 83 c4 0c 8b 86 f4 00 00 00 90 8d b4 26 00 00 00 00 0b

>>EIP; c0141e3c <prune_icache+5c/120> <=====
Trace; c0141f1c <shrink_icache_memory+1c/30>
Trace; c0128a40 <do_try_to_free_pages+60/c0>
Trace; c0128ba8 <try_to_free_pages+28/40>
Trace; c012979e <__alloc_pages+1be/270>
Trace; c0150120 <ext2_get_block+0/400>
Trace; c01223e0 <generic_file_readahead+1b0/240>
Trace; c0122626 <do_generic_file_read+1b6/4c0>
Trace; c01229f0 <generic_file_read+60/80>
Trace; c0122930 <file_read_actor+0/60>
Trace; c012ed04 <sys_read+94/d0>
Trace; c014f110 <ext2_file_lseek+0/b0>
Trace; c012eb7e <sys_lseek+6e/80>
Trace; c0106eca <system_call+32/38>
Code; c0141e3c <prune_icache+5c/120>
00000000 <_EIP>:
Code; c0141e3c <prune_icache+5c/120> <=====
0: 0f 0b ud2a <=====
Code; c0141e3e <prune_icache+5e/120>
2: 83 c4 0c add $0xc,%esp
Code; c0141e40 <prune_icache+60/120>
5: 8b 86 f4 00 00 00 mov 0xf4(%esi),%eax
Code; c0141e46 <prune_icache+66/120>
b: 90 nop
Code; c0141e48 <prune_icache+68/120>
c: 8d b4 26 00 00 00 00 lea 0x0(%esi,1),%esi
Code; c0141e4e <prune_icache+6e/120>
13: 0b 00 or (%eax),%eax

now the first one which happened overnight just as the updatedb cron job
was running:


ksymoops 2.4.3 on i686 2.4.9. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.9/ (default)
-m /boot/System.map-2.4.9 (specified)

Unable to handle kernel paging request at virtual address 30303050
c0141f4a
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[find_inode+26/80]
EIP: 0010:[<c0141f4a>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010203
eax: dff80000 ebx: 30303030 ecx: 0000000f edx: 00001ca2
esi: 30303030 edi: 000437f5 ebp: dff8e510 esp: cb1e7e8c
ds: 0018 es: 0018 ss: 0018
Process find (pid: 8921, stackpage=cb1e7000)
Stack: d659ca40 dff8e510 000437f5 df976a00 c0142331 df976a00 00043
00000000 00000000 00000000 c9d22080 c9d22080 c0994340 d659c
c9d22080 c0994340 c0151822 df976a00 000437f5 00000000 00000
Call Trace: [iget4+65/192] [ext2_lookup+66/112] [real_lookup+77/19
Call Trace: [<c0142331>] [<c0151822>] [<c0138b2d>] [<c013921c>] [<
[<c01368f2>] [<c0106ecb>]
Code: 39 7e 20 75 f1 8b 44 24 14 39 86 8c 00 00 00 75 e5 8b 4c 24

>>EIP; c0141f4a <find_inode+1a/50> <=====
Trace; c0142330 <iget4+40/c0>
Trace; c0151822 <ext2_lookup+42/70>
Trace; c0138b2c <real_lookup+4c/c0>
Trace; c013921c <path_walk+57c/7c0>
Trace; c01368f2 <sys_lstat64+12/70>
Trace; c0106eca <system_call+32/38>
Code; c0141f4a <find_inode+1a/50>
00000000 <_EIP>:
Code; c0141f4a <find_inode+1a/50> <=====
0: 39 7e 20 cmp %edi,0x20(%esi) <=====
Code; c0141f4c <find_inode+1c/50>
3: 75 f1 jne fffffff6 <_EIP+0xfffffff6> c0141f40 <find_inode+10/50>
Code; c0141f4e <find_inode+1e/50>
5: 8b 44 24 14 mov 0x14(%esp,1),%eax
Code; c0141f52 <find_inode+22/50>
9: 39 86 8c 00 00 00 cmp %eax,0x8c(%esi)
Code; c0141f58 <find_inode+28/50>
f: 75 e5 jne fffffff6 <_EIP+0xfffffff6> c0141f40 <find_inode+10/50>
Code; c0141f5a <find_inode+2a/50>
11: 8b 4c 24 00 mov 0x0(%esp,1),%ecx


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