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Message-ID: <4ABBC8F1.5000400@sbg.ac.at>
Date: Thu, 24 Sep 2009 21:30:57 +0200
From: Alexander Huemer <alexander.huemer@sbg.ac.at>
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To: Frans Pop <elendil@planet.nl>
CC: linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org,
       alexander.huemer@sbg.ac.at
Subject: Re: 2.6.{30,31} x86_64 ahci problem - irq 23: nobody cared
References: <4ABBB8C2.2080901@sbg.ac.at> <200909242124.42187.elendil@planet.nl>
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Frans Pop wrote:
> Adding linux-ide to CC.
>
> Alexander Huemer wrote:
>> the problem appears under heavy system load and slows down the system to
>> unusable speed.
>> kernels before .30 were not affected.
>> irqpoll does not change behavior.
>>
>> error message from .31:
>>  [157152.418524] irq 23: nobody cared (try booting with the "irqpoll" option)
>>  [157152.418530] Pid: 1359, comm: cc1plus Tainted: G        W  2.6.31-gentoo-blackbit #2
>>  [157152.418532] Call Trace:
>>  [157152.418534]  <IRQ>  [<ffffffff81066e3f>] ?  __report_bad_irq+0x30/0x7d
>>  [157152.418544]  [<ffffffff81066f93>] ? note_interrupt+0x107/0x170
>>  [157152.418547]  [<ffffffff81067580>] ? handle_fasteoi_irq+0x8a/0xaa
>>  [157152.418551]  [<ffffffff8100d1cf>] ? handle_irq+0x17/0x1d
>>  [157152.418554]  [<ffffffff8100c84b>] ? do_IRQ+0x54/0xb2
>>  [157152.418558]  [<ffffffff8100b6d3>] ? ret_from_intr+0x0/0xa
>>  [157152.418559]  <EOI>
>>  [157152.418560] handlers:
>>  [157152.418562] [<ffffffff813d2a6f>] (ahci_interrupt+0x0/0x426)
>>  [157152.418566] Disabling IRQ #23
>>
>> bios of the machine is up to date,
>> i tried all related bios settings, no change.
>>
>> kernel config for .31   http://xx.vu/~ahuemer/config_ahuemer_20090923.gz
>> lspci -vxxx             http://xx.vu/~ahuemer/lspci_ahuemer_20090923
>> lsusb -v                http://xx.vu/~ahuemer/lsusb_ahuemer_20090923
>> /proc/interrupts        http://xx.vu/~ahuemer/proc_interrupts_ahuemer_20090923
>> thread in gentoo forums http://forums.gentoo.org/viewtopic-t-780725-start-0.html
>>
>> please tell me what additional info is needed.
>
> A full dmesg (or kernel log) starting from a clean boot up to the error
> could be useful.
>
> If no others reply and the issue can be reproduced reliably, running a
> git bisect between v2.6.29 and v2.6.30 to trace the cause of the regression
> could be an option.
>
> Cheers,
> FJP
http://xx.vu/~ahuemer/dmesg_ahuemer_20090923
i rebootet and try to reproduce the error.
the last time the problem appeared during compilation of gcc-4.3.4.

regards
-alex
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