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SubjectKernel 2.2.18 oops
Sorry, after reading the documentation I couldn't figure out who to send this
to. ksymoops doesn't seem to have done its job correctly, but I include the
output anyway. The problem seems to have occured during updatedb (creates the
slocate file database), which runs daily as a cron job (and has done so
flawlessly on this machine since installation 2 years ago). The machine is an
SMP i686 machine, all IDE disks, running Red Hat 6.0 (+updates), and has been
running kernel 2.2.18 (compiled by me) since February. The oops causes the
machine to hang completely.


torus:ksymoops (14)% ./ksymoops < ~/oops.txt
WARNING: This version of ksymoops is obsolete.
WARNING: The current version can be obtained from
ftp://ftp.<country>.kernel.org/pub/linux/utils/kernel/ksymoops
Options used: -V (default)
-o /lib/modules/2.2.18/ (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-m /usr/src/linux/System.map (default)
-c 1 (default)

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.

No modules in ksyms, skipping objects
Warning, no symbols in lsmod, is /proc/modules a valid lsmod file?
May 26 04:02:57 localhost kernel: Unable to handle kernel NULL pointer
dereference at
May 26 04:02:57 localhost kernel: current->tss.cr3 = 0f952000, %%cr3 =
0f952000
May 26 04:02:57 localhost kernel: *pde = 00000000
May 26 04:02:57 localhost kernel: Oops: 0002
May 26 04:02:57 localhost kernel: CPU: 1
May 26 04:02:57 localhost kernel: EIP: 0010:[dput+310/328]
May 26 04:02:57 localhost kernel: EFLAGS: 00010286
May 26 04:02:57 localhost kernel: eax: 00000027 ebx: cad3a580 ecx:
0000004a edx: 0000002e
May 26 04:02:57 localhost kernel: esi: ffffffff edi: c959f80c ebp:
000004d5 esp: cdcf1e50
May 26 04:02:57 localhost kernel: ds: 0018 es: 0018 ss: 0018
May 26 04:02:57 localhost kernel: Process updatedb (pid: 32052, process nr:
45, stackpage=cdcf1000)
May 26 04:02:57 localhost kernel: Stack: cf822520 cad3a5e0 cad3a580 c4341220
c0134db4
cad3a580 cdcf1eb0 cdcf1eb0
May 26 04:02:57 localhost kernel: c02054e8 00001004 cdcf1eb0 00000001
00001004
c0135efc fffff4bb 00001004
May 26 04:02:57 localhost kernel: 00000000 c022d548 c02054e8 c022d548
c0140ed3
c01d3be0 c2a95440 cbb60888
May 26 04:02:57 localhost kernel: Call Trace: [prune_dcache+248/300]
[try_to_free_inodes+316/396] [ext2_find_entry+455/752] [cprt+5472/41797]
[grow_inodes+30/440] [get_new_inode+197/312] [iget4+134/144]
May 26 04:02:57 localhost kernel: Code: c7 05 00 00 00 00 00 00 00 00 83 c4 10
5b 5e c3 89 f6 56 53

Code: 00000000 Before first symbol 00000000 <_IP>: <===
Code: 00000000 Before first symbol 0: c7 05 00 00 00 00 00
movl
$0x0,0x0 <===
Code: 00000007 Before first symbol 7: 00 00 00
Code: 0000000a Before first symbol a: 83 c4 10
addl
$0x10,%esp
Code: 0000000d Before first symbol d: 5b
popl
%ebx
Code: 0000000e Before first symbol e: 5e
popl
%esi
Code: 0000000f Before first symbol f: c3
ret

Code: 00000010 Before first symbol 10: 89 f6
movl
%esi,%esi
Code: 00000012 Before first symbol 12: 56
pushl
%esi
Code: 00000013 Before first symbol 13: 53
pushl
%ebx


4 warnings issued. Results may not be reliable.

--
Stephen Cornell cornell@zoo.cam.ac.uk Tel/fax +44-1223-336644
University of Cambridge, Zoology Department, Downing Street, CAMBRIDGE CB2 3EJ

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