On Wed, May 02, 2001 at 09:51:39PM +1000, Andrew Morton wrote:
> Envelope-to: gbsadler@localhost
> From: Andrew Morton <[EMAIL PROTECTED]>
> X-Mailer: Mozilla 4.76 [en] (X11; U; Linux 2.4.3-ac13 i686)
> To: Gordon Sadler <[EMAIL PROTECTED]>
> Subject: Re: PROBLEM: 2.4.4 oops, will not boot
>
> Gordon Sadler wrote:
> >
> > Please CC on replies.
> > Attached is REPORTING-BUGS template from source, and a hand copied oops
> > that I ran through ksymoops. I really hope this is resolved, anything
> > further needed, just ask.
>
> Unfortunately the ksymoops output doesn't show the call trace.
> Can you please try again? A reproducable oops is, err, rather
> important. The syntax to feed into ksymoops is
>
> Call Trace: [<c0111234>] [<c0123456>] ...
>
> Thanks.
>
I see you are right, was late at night...
I've attached the file I hand wrote for the oops, which I then fed to
ksymoops. Also attached again is the output from ksymoops.
If something is inconsistent, and I need to regen the output with
ksymoops and my System.map, could someone be so kind as to suggest a
proper commandline? I used:
ksymoops -K -L -o /lib/modules/2.4.4/ -m /boot/System.map-2.4.4
< oops.txt >ksymresult.out
Reformatted for mail, originally one line. Nothing ever made it to
/var/log/ksymoops.
Gordon Sadler
Unable to handle kernel NULL pointer dereference at virtual address 00000014 printing
EIP: c01254b5
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010: [<c01254b5>]
eflags: 00010013
eax: c1227e08 ebx: c1227e08 ecx: c7e3ff68 edx: 00000000
esi: 00000286 edi: 00000007 ebp: c12343c0 esp: c7e3feec
ds: 0018 es: 0018 ss: 0018
Process chmod (pid: 119, stackpage = c7e3f000)
stack: 00000000 c1263080 c12630dc c013ec88 c1277e08 00000007 00000000 c1263080
c12630dc c12343c0 00000005 c01370c8 c12343c0 c7e3ff68 c7e3ff68 00000000
c12343c0 c7e3ffa4 c0137819 c12343c0 c7e3ff68 00000000 c1265000 00000000
Calltrace: [<c013ec88>] [<c01370c8>] [<c0137819>] [<c0136e4a>] [<c0137e3c>]
[<c0134f36>] [<c0106b9b>]
Code: 8b 42 14 ff 42 10 89 c1 0f af 4b 0c 03 4a 0c 8b 44 82 18 89
Segmentation Fault
+30 seconds
VM: refill_inactive, wrong page on list
ksymoops 2.4.1 on i686 2.2.19. Options used
-V (default)
-K (specified)
-L (specified)
-o /lib/modules/2.4.4/ (specified)
-m /boot/System.map-2.4.4 (specified)
No modules in ksyms, skipping objects
Unable to handle kernel NULL pointer dereference at virtual address 00000014 printing
EIP: c01254b5
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010: [<c01254b5>]
Using defaults from ksymoops -t elf32-i386 -a i386
eflags: 00010013
eax: c1227e08 ebx: c1227e08 ecx: c7e3ff68 edx: 00000000
esi: 00000286 edi: 00000007 ebp: c12343c0 esp: c7e3feec
ds: 0018 es: 0018 ss: 0018
stack: 00000000 c1263080 c12630dc c013ec88 c1277e08 00000007 00000000 c1263080
c12630dc c12343c0 00000005 c01370c8 c12343c0 c7e3ff68 c7e3ff68 00000000
c12343c0 c7e3ffa4 c0137819 c12343c0 c7e3ff68 00000000 c1265000 00000000
Code: 8b 42 14 ff 42 10 89 c1 0f af 4b 0c 03 4a 0c 8b 44 82 18 89
>>EIP; c01254b5 <kmem_cache_alloc+15/60> <=====
Code; c01254b5 <kmem_cache_alloc+15/60>
00000000 <_EIP>:
Code; c01254b5 <kmem_cache_alloc+15/60> <=====
0: 8b 42 14 mov 0x14(%edx),%eax <=====
Code; c01254b8 <kmem_cache_alloc+18/60>
3: ff 42 10 incl 0x10(%edx)
Code; c01254bb <kmem_cache_alloc+1b/60>
6: 89 c1 mov %eax,%ecx
Code; c01254bd <kmem_cache_alloc+1d/60>
8: 0f af 4b 0c imul 0xc(%ebx),%ecx
Code; c01254c1 <kmem_cache_alloc+21/60>
c: 03 4a 0c add 0xc(%edx),%ecx
Code; c01254c4 <kmem_cache_alloc+24/60>
f: 8b 44 82 18 mov 0x18(%edx,%eax,4),%eax
Code; c01254c8 <kmem_cache_alloc+28/60>
13: 89 00 mov %eax,(%eax)
