2.2.9/2.3.3-ac2 kernel NULL pointer with IDE & 'rmmod -a'

Dieter =?iso-8859-1?Q?N=FCtzel?= (dieter.nuetzel@arcormail.de)
Fri, 21 May 1999 03:26:37 +0200


Hello,

the subject say it all, I hope... :-)

This was during 2.3.3-ac2 on a K6-III 400 with MTRR.
Glibc-2.1.1pre3 (I get it with glibc-2.1.1pre2, too)

SunWave1>rmmod -a
Unable to handle kernel NULL pointer dereference at virtual address
00000004
current->tss.cr3 = 0e81a000, %cr3 = 0e81a000
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<d1831319>]
EFLAGS: 00010212
eax: 00000000 ebx: 00000000 ecx: 00000040 edx: 00000803
esi: d183aa00 edi: 00000301 ebp: 00000001 esp: ce655f6c
ds: 0018 es: 0018 ss: 0018
Process rmmod (pid: 200, process nr: 31, stackpage=ce655000)
Stack: 00000001 00000061 00000040 00000297 00000000 d183a940 d1834c96
00000000
d182f000 d182f000 c0118b20 d182f000 d182b000 00000001 c0117e1d
d182f000
00000001 ce654000 bffffb28 bffff9d4 ce655fc4 c010ab54 00000000
0804f6cb
Call Trace: [<c0118b20>] [<c0117e1d>] [<c010ab54>]
Code: 83 7c d8 04 00 7e 3a 8b 4c 24 1c 8b 54 24 10 66 0f b6 b9 74
Segmentation fault

SunWave1>lsmod
Module Size Used by
awe_wave 170732 1 (autoclean)
sb 36436 1 (autoclean)
uart401 6320 1 (autoclean) [sb]
sound 65848 0 (autoclean) [awe_wave sb uart401]
soundlow 300 0 (autoclean) [sound]
soundcore 2852 7 (autoclean) [sb sound]
lsmod: QM_INFO: No such file or directory

Regards,
Dieter

---
Dieter Nützel
Graduate Student, Computer Science

University of Hamburg Department of Computer Science Cognitive Systems Group Vogt-Kölln-Straße 30 D-22527 Hamburg, Germany

email: Dieter Nützel <nuetzel@kogs.informatik.uni-hamburg.de> @home: Dieter Nützel <dieter.nuetzel@arcormail.de>

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