Re: OOPS: pre4-4 crashes in shm/vfs with sound and Xfree3.3.6

From: Christoph Rohland (hans-christoph.rohland@sap.com)
Date: Wed Apr 05 2000 - 11:09:01 EST


I am getting nearly the same oops (see below) when doing shm tests: It
was introduced with the vfs API changes. I am trying to track it down
but unfortunately I am just too busy with some other things.

Al, did you do the API changes and do you know what's going on?

Greetings
                Christoph

-- 
Unable to handle kernel NULL pointer dereference at virtual address 00000022
c0151e04
*pde = 37817001
Oops: 0000
CPU:    2
EIP:    0010:[<c0151e04>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010202
eax: 00000003   ebx: c10a1340   ecx: 00000000   edx: 00000000
esi: f7819f78   edi: 00000001   ebp: f7819f78   esp: f7819eb0
ds: 0018   es: 0018   ss: 0018
Process ipctst (pid: 632, stackpage=f7819000)
Stack: c10a1340 f7819f78 c10a1340 f7819f78 c0152360 00000000 00000001 c10a1340
       f7819f78 00000003 00000002 00000000 f7818000 00000000 0000000e 00000073
       c011453c c015264a f7819f78 c10a1340 00000001 c10a1340 00000000 f7819f78
Call Trace: [<c0152360>] [<c011453c>] [<c015264a>] [<c01423ba>] [<c018e329>] [<c
01128e6>] [<c010b49c>]
Code: 0f b7 59 22 8b 81 9c 00 00 00 85 c0 74 13 8b 40 30 85 c0 74

>>EIP; c0151e04 <permission+c/114> <===== Trace; c0152360 <lookup_dentry+23c/25c> Trace; c011453c <smp_apic_timer_interrupt+12c/18c> Trace; c015264a <open_namei+52/394> Trace; c01423ba <__filp_open+3e/64> Trace; c018e329 <sys_shmat+119/290> Trace; c01128e6 <sys_ipc+15a/1d4> Trace; c010b49c <system_call+34/38> Code; c0151e04 <permission+c/114> 00000000 <_EIP>: Code; c0151e04 <permission+c/114> <===== 0: 0f b7 59 22 movzwl 0x22(%ecx),%ebx <===== Code; c0151e08 <permission+10/114> 4: 8b 81 9c 00 00 00 movl 0x9c(%ecx),%eax Code; c0151e0e <permission+16/114> a: 85 c0 testl %eax,%eax Code; c0151e10 <permission+18/114> c: 74 13 je 21 <_EIP+0x21> c0151e25 <permission+2d/ 114> Code; c0151e12 <permission+1a/114> e: 8b 40 30 movl 0x30(%eax),%eax Code; c0151e15 <permission+1d/114> 11: 85 c0 testl %eax,%eax Code; c0151e17 <permission+1f/114> 13: 74 00 je 15 <_EIP+0x15> c0151e19 <permission+21/ 114>

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This archive was generated by hypermail 2b29 : Fri Apr 07 2000 - 21:00:14 EST