kernel oops in 2.2.6-ac3 NFS client

Frank van Maarseveen (fvm@tasking.nl)
Thu, 15 Jul 1999 18:17:59 +0200


2.2.6-ac3 may be a bit old but anyway, the following occurs
frequently:

Options used: -V (default)
-o /lib/modules/2.2.6-ac3/ (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-m /boot/map-2.2.6-ac3 (specified)
-c 1 (default)

No modules in ksyms, skipping objects
Warning, no symbols in lsmod, is /proc/modules a valid lsmod file?
Jul 15 17:31:15 sirkka kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000018
Jul 15 17:31:15 sirkka kernel: current->tss.cr3 = 03ceb000, %cr3 = 03ceb000
Jul 15 17:31:15 sirkka kernel: *pde = 00000000
Jul 15 17:31:15 sirkka kernel: Oops: 0000
Jul 15 17:31:15 sirkka kernel: CPU: 0
Jul 15 17:31:15 sirkka kernel: EIP: 0010:[nfs_lookup_revalidate+192/320]
Jul 15 17:31:15 sirkka kernel: EFLAGS: 00010246
Jul 15 17:31:15 sirkka kernel: eax: 00000000 ebx: c2d62400 ecx: 00000000 edx: c07f6000
Jul 15 17:31:15 sirkka kernel: esi: c2b8e6a0 edi: c07f7f34 ebp: 00000000 esp: c07f7ee4
Jul 15 17:31:15 sirkka kernel: ds: 0018 es: 0018 ss: 0018
Jul 15 17:31:15 sirkka kernel: Process rm (pid: 15354, process nr: 77, stackpage=c07f7000)
Jul 15 17:31:15 sirkka kernel: Stack: 00000000 c2b8e6a0 c07f7ef0 00000001 000081a4 00000001 00000160 000000af
Jul 15 17:31:15 sirkka kernel: 00000000 00002000 00000000 00000000 00805000 0001db84 378dfec3 000f2d34
Jul 15 17:31:15 sirkka kernel: 378dfec3 000f2d34 378dfec3 000f2d34 00805000 00000001 0000000c 0001db84
Jul 15 17:31:15 sirkka kernel: Call Trace: [cached_lookup+41/76] [lookup_dentry+252/428] [__namei+41/92] [sys_newlstat+19/100] [system_call+52/56]
Jul 15 17:31:15 sirkka kernel: Code: 8b 45 18 39 44 24 3c 75 3f 8b 73 5c b9 20 00 00 00 fc a8 00
Warning: trailing garbage ignored on Code: line
Text: 'Code: 8b 45 18 39 44 24 3c 75 3f 8b 73 5c b9 20 00 00 00 fc a8 00 '
Garbage: ' '

Code: 00000000 Before first symbol 00000000 <_IP>: <===
Code: 00000000 Before first symbol 0: 8b 45 18 movl 0x18(%ebp),%eax <===
Code: 00000003 Before first symbol 3: 39 44 24 3c cmpl %eax,0x3c(%esp,1)
Code: 00000007 Before first symbol 7: 75 3f jne 00000048 Before first symbol
Code: 00000009 Before first symbol 9: 8b 73 5c movl 0x5c(%ebx),%esi
Code: 0000000c Before first symbol c: b9 20 00 00 00 movl $0x20,%ecx
Code: 00000011 Before first symbol 11: fc cld
Code: 00000012 Before first symbol 12: a8 00 testb $0x0,%al

2 warnings issued. Results may not be reliable.

Note: no modules used.

-- 
Frank

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