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SubjectOops at NFS unmounting
Hi *!

I got this Oops at unmounting a already renamed NFS source.
The umount got a SEGFAULT.

I compiled my 2.4.5 with 2.95.4 20010319 (Debian prerelease).


-Gregorksymoops 2.4.1 on i686 2.4.5. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.5/ (default)
-m /boot/ (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.

Warning (compare_maps): snd symbol pm_register not found in /usr/lib/alsa-modules/2.4.5/0.5/snd.o. Ignoring /usr/lib/alsa-modules/2.4.5/0.5/snd.o entry
Warning (compare_maps): snd symbol pm_send not found in /usr/lib/alsa-modules/2.4.5/0.5/snd.o. Ignoring /usr/lib/alsa-modules/2.4.5/0.5/snd.o entry
Warning (compare_maps): snd symbol pm_unregister not found in /usr/lib/alsa-modules/2.4.5/0.5/snd.o. Ignoring /usr/lib/alsa-modules/2.4.5/0.5/snd.o entry
WARNING: USB Mass Storage data integrity not assured
kernel BUG at inode.c:486!
invalid operand: 0000
CPU: 0
EIP: 0010:[<c013f9bb>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010286
eax: 0000001b ebx: dd3df820 ecx: d9406000 edx: ddd3e560
esi: c022f280 edi: c022f280 ebp: 08054008 esp: d9407f04
ds: 0018 es: 0018 ss: 0018
Process umount (pid: 1551, stackpage=d9407000)
Stack: c01f79ac c01f7a0b 000001e6 dd3df820 c0140387 dd3df820 c326a7c0 dd3df820
c015399a dd3df820 c013df96 c326a7c0 dd3df820 de260c00 c326a7c0 c013227c
c326a7c0 c326a7c0 c3264e20 de260c00 c022e040 08054008 de260c34 c022f30c
Call Trace: [<c0140387>] [<c015399a>] [<c013df96>] [<c013227c>] [<c01316d4>] [<c0136baf>] [<c01326a8>]
[<c01326e0>] [<c0106a7b>] [<c010002b>]
Code: 0f 0b 83 c4 0c f6 83 f4 00 00 00 10 75 19 68 e8 01 00 00 68

>>EIP; c013f9bb <clear_inode+33/f4> <=====
Trace; c0140387 <iput+137/14c>
Trace; c015399a <nfs_dentry_iput+22/28>
Trace; c013df96 <dput+d6/144>
Trace; c013227c <kill_super+64/12c>
Trace; c01316d4 <__mntput+3c/44>
Trace; c0136baf <path_release+27/2c>
Trace; c01326a8 <sys_umount+c0/ec>
Trace; c01326e0 <sys_oldumount+c/10>
Trace; c0106a7b <system_call+33/38>
Trace; c010002b <startup_32+2b/a5>
Code; c013f9bb <clear_inode+33/f4>
00000000 <_EIP>:
Code; c013f9bb <clear_inode+33/f4> <=====
0: 0f 0b ud2a <=====
Code; c013f9bd <clear_inode+35/f4>
2: 83 c4 0c add $0xc,%esp
Code; c013f9c0 <clear_inode+38/f4>
5: f6 83 f4 00 00 00 10 testb $0x10,0xf4(%ebx)
Code; c013f9c7 <clear_inode+3f/f4>
c: 75 19 jne 27 <_EIP+0x27> c013f9e2 <clear_inode+5a/f4>
Code; c013f9c9 <clear_inode+41/f4>
e: 68 e8 01 00 00 push $0x1e8
Code; c013f9ce <clear_inode+46/f4>
13: 68 00 00 00 00 push $0x0

4 warnings issued. Results may not be reliable.
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