Hi,
I have a box running kernel 2.4.18 (SGI XFS 1.1). Say twice a week the
NFS server crashes with Oops, i.e. NFS service is blocked but the box is
still running a mail server and you can log in.
$ gcc --version
egcs-2.91.66
/var/log/messages of this week was fed to ksymoops and the result is
attached.
ksymoops 2.4.8 on i586 2.4.18-xfs-1.1. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.18-xfs-1.1 (specified)
-m /boot/System.map (specified)
Dec 25 02:54:50 ente kernel: Unable to handle kernel NULL pointer dereference
at virtual address 00000000
Dec 25 02:54:50 ente kernel: 00000000
Dec 25 02:54:50 ente kernel: *pde = 00000000
Dec 25 02:54:50 ente kernel: Oops: 0000
Dec 25 02:54:50 ente kernel: CPU: 0
Dec 25 02:54:50 ente kernel: EIP: 0010:[<00000000>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
Dec 25 02:54:50 ente kernel: EFLAGS: 00010282
Dec 25 02:54:50 ente kernel: eax: 00000000 ebx: ced5ace0 ecx: 00000000
edx: c0325ba0
Dec 25 02:54:50 ente kernel: esi: ced5ade0 edi: ced5ace0 ebp: ced5ace0
esp: cd017ec4
Dec 25 02:54:50 ente kernel: ds: 0018 es: 0018 ss: 0018
Dec 25 02:54:50 ente kernel: Process nfsd (pid: 679, stackpage=cd017000)
Dec 25 02:54:50 ente kernel: Stack: c0163700 cc1469c0 ced5ade0 cd0c6c04
cfd9b800 c0163b16 ced5ace0 cd0c6c04
Dec 25 02:54:50 ente kernel: 00000002 cd04e800 11270000 c52dc520
cfd9ba10 00000002 c0163e29 cfd9b800
Dec 25 02:54:50 ente kernel: cd0c6c14 00000002 00000001 00000001
cd0c6c04 cd0c6a90 cd0c6c94 cd0c6c00
Dec 25 02:54:50 ente kernel: Call Trace: [nfsd_findparent+56/212]
[find_fh_dentry+502/776] [fh_verify+513/1000] [nfsd3_proc_getattr+149/160]
[nfsd_dispatch+211/416]
Dec 25 02:54:50 ente kernel: Code: Bad EIP value.
>>EIP; 00000000 Before first symbol
>>ebx; ced5ace0 <_end+ea0c57c/1054289c>
>>edx; c0325ba0 <empty_iops.647+0/60>
>>esi; ced5ade0 <_end+ea0c67c/1054289c>
>>edi; ced5ace0 <_end+ea0c57c/1054289c>
>>ebp; ced5ace0 <_end+ea0c57c/1054289c>
>>esp; cd017ec4 <_end+ccc9760/1054289c>
Dec 26 20:39:18 ente kernel: SGI XFS with no debug enabled
Dec 26 20:39:18 ente kernel: 3c59x: Donald Becker and others.
www.scyld.com/network/vortex.html
Dec 28 02:51:28 ente kernel: Unable to handle kernel NULL pointer dereference
at virtual address 00000000
Dec 28 02:51:28 ente kernel: 00000000
Dec 28 02:51:28 ente kernel: *pde = 00000000
Dec 28 02:51:28 ente kernel: Oops: 0000
Dec 28 02:51:28 ente kernel: CPU: 0
Dec 28 02:51:29 ente kernel: EIP: 0010:[<00000000>] Not tainted
Dec 28 02:51:29 ente kernel: EFLAGS: 00010282
Dec 28 02:51:29 ente kernel: eax: 00000000 ebx: c5cf6420 ecx: 00000000
edx: c0325ba0
Dec 28 02:51:29 ente kernel: esi: cd89e820 edi: c5cf6420 ebp: c5cf6420
esp: cd327ec4
Dec 28 02:51:29 ente kernel: ds: 0018 es: 0018 ss: 0018
Dec 28 02:51:29 ente kernel: Process nfsd (pid: 667, stackpage=cd327000)
Dec 28 02:51:29 ente kernel: Stack: c0163700 caf12060 cd89e820 cd3f2204
cfd82800 c0163b16 c5cf6420 cd3f2204
Dec 28 02:51:29 ente kernel: 00000002 cd34f800 11270000 00000246
cfd82a10 00000002 c0163e29 cfd82800
Dec 28 02:51:29 ente kernel: cd3f2214 00000002 00000001 00000001
cd3f2204 cd3f2090 cd3f2294 cd3f2200
Dec 28 02:51:29 ente kernel: Call Trace: [nfsd_findparent+56/212]
[find_fh_dentry+502/776] [fh_verify+513/1000] [nfsd3_proc_getattr+149/160]
[nfsd_dispatch+211/416]
Dec 28 02:51:29 ente kernel: Code: Bad EIP value.
>>EIP; 00000000 Before first symbol
>>ebx; c5cf6420 <_end+59a7cbc/1054289c>
>>edx; c0325ba0 <empty_iops.647+0/60>
>>esi; cd89e820 <_end+d5500bc/1054289c>
>>edi; c5cf6420 <_end+59a7cbc/1054289c>
>>ebp; c5cf6420 <_end+59a7cbc/1054289c>
>>esp; cd327ec4 <_end+cfd9760/1054289c>
Dec 28 10:03:07 ente kernel: SGI XFS with no debug enabled
Dec 28 10:03:08 ente kernel: 3c59x: Donald Becker and others.
www.scyld.com/network/vortex.html
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