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SubjectRe: [BUG] Panic in 2.5.4 during bootup after POSIX conformance testing by UNIFIX
Roy Sigurd Karlsbakk wrote:
> hi all
>
> My 3.5.4 panics right after reporting 'POSIX conformance testing by
> UNIFIX'.

Very similar one here, also happens after POSIX banner - ksymoops
output follows:

ksymoops 2.4.1 on i686 2.5.4-pre2. Options used
-v /usr/src/linux/vmlinux (specified)
-K (specified)
-L (specified)
-o /lib/modules/2.5.4 (specified)
-m /boot/System.map-2.5.4 (specified)

No modules in ksyms, skipping objects
CPU: 0
EIP: 0010:[<c0116850>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010046
eax: c029c480 ebx: 00000001 ecx: c02b2000 edx: 00000000
esi: c02e7500 edi: 00000000 ebp: c02b3f98 esp: c02b3f80
ds: 0018 es: 0018 ss: 0018
Stack: 0008e000 c01076dd c029c480 c02b2000 c02b3fd4 c0105000 0008e000 c0108eea
00010400 c0105060 00000000 c02b3fd4 c0105000 0008e000 00000001 c02e0018
00000018 00000078 c010729d 00000010 00000206 0000ffd3 c02b2000 c0105011
Call Trace: [<c01076dd>] [<c0105000>] [<c0108eea>] [<c0105060>] [<c0105000>] [<c010729d>] [<c0105011>] [<c0105060>]
Code: 0f 0b e9 06 fd ff ff e8 24 00 00 00 eb f2 89 f6 8b 41 08 83

>>EIP; c0116850 <schedule+330/360> <=====
Trace; c01076dd <sys_clone+1d/30>
Trace; c0105000 <_stext+0/0>
Trace; c0108eea <work_resched+5/16>
Trace; c0105060 <init+0/1c0>
Trace; c0105000 <_stext+0/0>
Trace; c010729d <kernel_thread+1d/30>
Trace; c0105011 <rest_init+11/60>
Trace; c0105060 <init+0/1c0>
Code; c0116850 <schedule+330/360>
00000000 <_EIP>:
Code; c0116850 <schedule+330/360> <=====
0: 0f 0b ud2a <=====
Code; c0116852 <schedule+332/360>
2: e9 06 fd ff ff jmp fffffd0d <_EIP+0xfffffd0d> c011655d <schedule+3d/360>
Code; c0116857 <schedule+337/360>
7: e8 24 00 00 00 call 30 <_EIP+0x30> c0116880 <preempt_schedule+0/30>
Code; c011685c <schedule+33c/360>
c: eb f2 jmp 0 <_EIP>
Code; c011685e <schedule+33e/360>
e: 89 f6 mov %esi,%esi
Code; c0116860 <schedule+340/360>
10: 8b 41 08 mov 0x8(%ecx),%eax
Code; c0116863 <schedule+343/360>
13: 83 00 00 addl $0x0,(%eax)


>
> ksymoops info is below
>
> roy
> --
> ksymoops 2.4.3 on i686 2.4.17. Options used
> -v ../linux/vmlinux (specified)
> -K (specified)
> -L (specified)
> -o /lib/modules/2.4.17/ (default)
> -m ../linux/System.map (specified)
>
> No modules in ksyms, skipping objects
> invalid operand: 0000
> CPU: 0
> EIP: 0010:[<c01147ff>] Not tainted
> Using defaults from ksymoops -t elf32-i386 -a i386
> EFLAGS: 00010082
> eax: 0000001b ebx: c0294000 ecx: fffff76c edx: 00000894
> esi: c02ce100 edi: 00000000 ebp: c0295f94 esp: c0295f74
> ds: 0018 es: 0018 ss: 0018
> Stack: c0239d79 00000298 c0294000 c0295fd0 00000000 00000078 c0295f9c c0280d20
> 0004e000 c0108bea 00010f00 00000078 c0105070 c0295fd0 00000000 0004e000
> 00000001 00000018 00000018 00000078 c010719f 00000010 00000206 00038000
> Call Trace: [<c0108bea>] [<c0105070>] [<c010719f>] [<c0105000>] [<c0105012>]
> [<c0105070>]
> Code: 0f 0b 83 c4 08 fa b8 00 e0 ff ff 21 e0 ff 40 10 f6 40 13 04
>
>
>>>EIP; c01147fe <schedule+6e/2e0> <=====
>>>
> Trace; c0108bea <work_resched+6/16>
> Trace; c0105070 <init+0/160>
> Trace; c010719e <kernel_thread+1e/40>
> Trace; c0105000 <_stext+0/0>
> Trace; c0105012 <rest_init+12/70>
> Trace; c0105070 <init+0/160>
> Code; c01147fe <schedule+6e/2e0>
> 00000000 <_EIP>:
> Code; c01147fe <schedule+6e/2e0> <=====
> 0: 0f 0b ud2a <=====
> Code; c0114800 <schedule+70/2e0>
> 2: 83 c4 08 add $0x8,%esp
> Code; c0114802 <schedule+72/2e0>
> 5: fa cli
> Code; c0114804 <schedule+74/2e0>
> 6: b8 00 e0 ff ff mov $0xffffe000,%eax
> Code; c0114808 <schedule+78/2e0>
> b: 21 e0 and %esp,%eax
> Code; c011480a <schedule+7a/2e0>
> d: ff 40 10 incl 0x10(%eax)
> Code; c011480e <schedule+7e/2e0>
> 10: f6 40 13 04 testb $0x4,0x13(%eax)
>
> <0>Kernel panic: Attempted to kill the idle task!

--alessandro

"If your heart is a flame burning brightly
you'll have light and you'll never be cold
And soon you will know that you just grow / You're not growing old"
(Husker Du, "Flexible Flyer")

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