From: Pierre Ossman <drzeus-list-p3sGCRWkH8CeZLLa646FqQ@public.gmane.org>
To: Len Brown <len.brown-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: ACPI Developers
<acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
Subject: Re: Oops when loading ac
Date: Thu, 26 Aug 2004 09:09:18 +0200 [thread overview]
Message-ID: <412D8C9E.9070409@drzeus.cx> (raw)
In-Reply-To: <1093378935.17222.270.camel@dhcppc4>
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
>>
>>
>>
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>>
>
>
>
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prev parent reply other threads:[~2004-08-26 7:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
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 [this message]
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