* Oops when loading ac
@ 2004-08-24 18:19 Pierre Ossman
[not found] ` <412B86A9.80404-p3sGCRWkH8CeZLLa646FqQ@public.gmane.org>
0 siblings, 1 reply; 3+ messages in thread
From: Pierre Ossman @ 2004-08-24 18:19 UTC (permalink / raw)
To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f
Somewhere between 2.6.7 + acpi_20040715 and 2.6.8.1 (still present in
2.6.9-rc1) there appeared a bug that causes the ac module to crash when
loading. I had no problems with the ac module before this. Any ideas on
what has been changed and what to do about it?
Rgds
Pierre
From dmesg:
Unable to handle kernel paging request at virtual address c0452440
printing eip:
c0233162
*pde = 00488027
*pte = 00452000
Oops: 0002 [#1]
PREEMPT DEBUG_PAGEALLOC
Modules linked in: ac radeon ipv6 xfs
CPU: 0
EIP: 0060:[<c0233162>] Not tainted VLI
EFLAGS: 00010246 (2.6.9-rc1)
EIP is at acpi_bus_register_driver+0xd4/0x169
eax: c0452440 ebx: e0903b40 ecx: e090336b edx: ffffffed
esi: dd468000 edi: e0903c80 ebp: c03cec60 esp: dd469f84
ds: 007b es: 007b ss: 0068
Process insmod (pid: 573, threadinfo=dd468000 task=dd4909f0)
Stack: c03ceca0 e0905031 e0903b40 c014c54b c0469884 00000001 e0903c80
4003edfa
0001120e bffffeec 00000004 40010008 00000000 00000000 dd468000
c0106b79
40010008 0002edf2 0807a008 00000000 00000000 bfffcef8 00000080
0000007b
Call Trace:
[<e0905031>] init_module+0x31/0x52 [ac]
[<c014c54b>] sys_init_module+0x1ab/0x370
[<c0106b79>] sysenter_past_esp+0x52/0x71
Code: 00 00 00 a1 6c 75 3d c0 c7 05 f8 74 3d c0 7c f2 39 c0 c7 05 fc 74
3d c0 bd 01 00 00 89 1d 6c 75 3d c0 c7 03 68 75 3d c0 89 43 04 <89> 18
81 3d e8 74 3d c0 3c 4b 24 1d 74 1c 68 e8 74 3d c0 68 bf
<6>note: insmod[573] exited with preempt_count 1
drivers/acpi/scan.c:445: spin_lock(drivers/acpi/scan.c:c03d74e8) already
locked by drivers/acpi/scan.c/445
-------------------------------------------------------
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Oops when loading ac
[not found] ` <412B86A9.80404-p3sGCRWkH8CeZLLa646FqQ@public.gmane.org>
@ 2004-08-24 20:22 ` Len Brown
2004-08-26 7:09 ` Pierre Ossman
0 siblings, 1 reply; 3+ messages in thread
From: Len Brown @ 2004-08-24 20:22 UTC (permalink / raw)
To: Pierre Ossman; +Cc: ACPI Developers
no idea.
does compiling the module static or disabling PREEMPT
or disabling DEBUG_PAGEALLOC have any effect?
On Tue, 2004-08-24 at 14:19, Pierre Ossman wrote:
> Somewhere between 2.6.7 + acpi_20040715 and 2.6.8.1 (still present in
> 2.6.9-rc1) there appeared a bug that causes the ac module to crash when
> loading. I had no problems with the ac module before this. Any ideas on
> what has been changed and what to do about it?
>
> Rgds
> Pierre
>
> From dmesg:
>
> Unable to handle kernel paging request at virtual address c0452440
> printing eip:
> c0233162
> *pde = 00488027
> *pte = 00452000
> Oops: 0002 [#1]
> PREEMPT DEBUG_PAGEALLOC
> Modules linked in: ac radeon ipv6 xfs
> CPU: 0
> EIP: 0060:[<c0233162>] Not tainted VLI
> EFLAGS: 00010246 (2.6.9-rc1)
> EIP is at acpi_bus_register_driver+0xd4/0x169
> eax: c0452440 ebx: e0903b40 ecx: e090336b edx: ffffffed
> esi: dd468000 edi: e0903c80 ebp: c03cec60 esp: dd469f84
> ds: 007b es: 007b ss: 0068
> Process insmod (pid: 573, threadinfo=dd468000 task=dd4909f0)
> Stack: c03ceca0 e0905031 e0903b40 c014c54b c0469884 00000001 e0903c80
> 4003edfa
> 0001120e bffffeec 00000004 40010008 00000000 00000000 dd468000
> c0106b79
> 40010008 0002edf2 0807a008 00000000 00000000 bfffcef8 00000080
> 0000007b
> Call Trace:
> [<e0905031>] init_module+0x31/0x52 [ac]
> [<c014c54b>] sys_init_module+0x1ab/0x370
> [<c0106b79>] sysenter_past_esp+0x52/0x71
> Code: 00 00 00 a1 6c 75 3d c0 c7 05 f8 74 3d c0 7c f2 39 c0 c7 05 fc 74
> 3d c0 bd 01 00 00 89 1d 6c 75 3d c0 c7 03 68 75 3d c0 89 43 04 <89> 18
> 81 3d e8 74 3d c0 3c 4b 24 1d 74 1c 68 e8 74 3d c0 68 bf
> <6>note: insmod[573] exited with preempt_count 1
> drivers/acpi/scan.c:445: spin_lock(drivers/acpi/scan.c:c03d74e8) already
> locked by drivers/acpi/scan.c/445
>
>
>
> -------------------------------------------------------
> SF.Net email is sponsored by Shop4tech.com-Lowest price on Blank Media
> 100pk Sonic DVD-R 4x for only $29 -100pk Sonic DVD+R for only $33
> Save 50% off Retail on Ink & Toner - Free Shipping and Free Gift.
> http://www.shop4tech.com/z/Inkjet_Cartridges/9_108_r285
> _______________________________________________
> Acpi-devel mailing list
> Acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
> https://lists.sourceforge.net/lists/listinfo/acpi-devel
-------------------------------------------------------
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Oops when loading ac
2004-08-24 20:22 ` Len Brown
@ 2004-08-26 7:09 ` Pierre Ossman
0 siblings, 0 replies; 3+ messages in thread
From: Pierre Ossman @ 2004-08-26 7:09 UTC (permalink / raw)
To: Len Brown; +Cc: ACPI Developers
I've done some testing now and the bug only appears with
DEBUG_PAGEALLOC. PREEMPT has no influence.
Len Brown wrote:
>no idea.
>does compiling the module static or disabling PREEMPT
>or disabling DEBUG_PAGEALLOC have any effect?
>
>On Tue, 2004-08-24 at 14:19, Pierre Ossman wrote:
>
>
>>Somewhere between 2.6.7 + acpi_20040715 and 2.6.8.1 (still present in
>>2.6.9-rc1) there appeared a bug that causes the ac module to crash when
>>loading. I had no problems with the ac module before this. Any ideas on
>>what has been changed and what to do about it?
>>
>>Rgds
>>Pierre
>>
>> From dmesg:
>>
>>Unable to handle kernel paging request at virtual address c0452440
>> printing eip:
>>c0233162
>>*pde = 00488027
>>*pte = 00452000
>>Oops: 0002 [#1]
>>PREEMPT DEBUG_PAGEALLOC
>>Modules linked in: ac radeon ipv6 xfs
>>CPU: 0
>>EIP: 0060:[<c0233162>] Not tainted VLI
>>EFLAGS: 00010246 (2.6.9-rc1)
>>EIP is at acpi_bus_register_driver+0xd4/0x169
>>eax: c0452440 ebx: e0903b40 ecx: e090336b edx: ffffffed
>>esi: dd468000 edi: e0903c80 ebp: c03cec60 esp: dd469f84
>>ds: 007b es: 007b ss: 0068
>>Process insmod (pid: 573, threadinfo=dd468000 task=dd4909f0)
>>Stack: c03ceca0 e0905031 e0903b40 c014c54b c0469884 00000001 e0903c80
>>4003edfa
>> 0001120e bffffeec 00000004 40010008 00000000 00000000 dd468000
>>c0106b79
>> 40010008 0002edf2 0807a008 00000000 00000000 bfffcef8 00000080
>>0000007b
>>Call Trace:
>> [<e0905031>] init_module+0x31/0x52 [ac]
>> [<c014c54b>] sys_init_module+0x1ab/0x370
>> [<c0106b79>] sysenter_past_esp+0x52/0x71
>>Code: 00 00 00 a1 6c 75 3d c0 c7 05 f8 74 3d c0 7c f2 39 c0 c7 05 fc 74
>>3d c0 bd 01 00 00 89 1d 6c 75 3d c0 c7 03 68 75 3d c0 89 43 04 <89> 18
>>81 3d e8 74 3d c0 3c 4b 24 1d 74 1c 68 e8 74 3d c0 68 bf
>> <6>note: insmod[573] exited with preempt_count 1
>>drivers/acpi/scan.c:445: spin_lock(drivers/acpi/scan.c:c03d74e8) already
>>locked by drivers/acpi/scan.c/445
>>
>>
>>
>>-------------------------------------------------------
>>SF.Net email is sponsored by Shop4tech.com-Lowest price on Blank Media
>>100pk Sonic DVD-R 4x for only $29 -100pk Sonic DVD+R for only $33
>>Save 50% off Retail on Ink & Toner - Free Shipping and Free Gift.
>>http://www.shop4tech.com/z/Inkjet_Cartridges/9_108_r285
>>_______________________________________________
>>Acpi-devel mailing list
>>Acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
>>https://lists.sourceforge.net/lists/listinfo/acpi-devel
>>
>>
>
>
>
-------------------------------------------------------
SF.Net email is sponsored by Shop4tech.com-Lowest price on Blank Media
100pk Sonic DVD-R 4x for only $29 -100pk Sonic DVD+R for only $33
Save 50% off Retail on Ink & Toner - Free Shipping and Free Gift.
http://www.shop4tech.com/z/Inkjet_Cartridges/9_108_r285
^ permalink raw reply [flat|nested] 3+ messages in thread
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2004-08-24 18:19 Oops when loading ac Pierre Ossman
[not found] ` <412B86A9.80404-p3sGCRWkH8CeZLLa646FqQ@public.gmane.org>
2004-08-24 20:22 ` Len Brown
2004-08-26 7:09 ` Pierre Ossman
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