repeatable 2.4.18-ac2 nfs oops

Kristian Peters (kristian.peters@korseby.net)
Fri, 26 Apr 2002 16:10:52 +0200


Hello.

I recently got this oops with 2.4.18-ac2.
Good news: This one is truely repeatable. Can someone can help me with this ?

ksymoops 2.4.3 on i686 2.4.18-ac2. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.18-ac2/ (default)
-m /boot/System.map-2.4.18-ac2 (specified)

Unable to handle kernel NULL pointer dereference at virtual address 00000008
c0182904
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[find_fh_dentry+352/776] Not tainted
EFLAGS: 00010217
eax: 00000000 ebx: 00000000 ecx: 00000005 edx: c02b7860
esi: 00000005 edi: 00000000 ebp: 11270000 esp: c2dc3e14
ds: 0018 es: 0018 ss: 0018
Process nfsd (pid: 266, stackpage=c2dc3000)
Stack: c313d204 00000005 c3466000 11270000 c36d5f0c c363e840 c0182ca8 c36d5c00
c313d214 00000005 00000003 00000001 c2dc3ec0 00000004 c313d294 c313d204
c2dc3ea8 c313d214 c2dc3ec0 c3275080 00000040 c0183f34 c30fbe00 c313d204
Call Trace: [fh_verify+508/988] [nfsd_open+36/480] [nfsd_read+33/600] [inet_sendmsg+58/64] [sock_sendmsg+105/136]
Code: 8b 47 08 bb 8c ff ff ff 85 c0 0f 84 57 01 00 00 0f b7 40 32
Using defaults from ksymoops -t elf32-i386 -a i386

Code; 00000000 Before first symbol
00000000 <_EIP>:
Code; 00000000 Before first symbol
0: 8b 47 08 mov 0x8(%edi),%eax
Code; 00000002 Before first symbol
3: bb 8c ff ff ff mov $0xffffff8c,%ebx
Code; 00000008 Before first symbol
8: 85 c0 test %eax,%eax
Code; 0000000a Before first symbol
a: 0f 84 57 01 00 00 je 167 <_EIP+0x167> 00000166 Before first symbol
Code; 00000010 Before first symbol
10: 0f b7 40 32 movzwl 0x32(%eax),%eax

On this box there runs a Debian Woody from early February. I can repeat this oops easily having some traffic on a nfs-mounted vfat partition.

hdc: WDC AC22400L, ATA DISK drive
hdc: 4749696 sectors (2432 MB) w/256KiB Cache, CHS=4712/16/63, UDMA(33)

*Kristian

:... [snd.science] ...:
:: _o)
:: http://www.korseby.net /\\
:: http://gsmp.sf.net _\_V
:.........................:
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