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SubjectRe: 2.6.{30,31} x86_64 ahci problem - irq 23: nobody cared
Frans Pop wrote:
> On Friday 25 September 2009, Alexander Huemer wrote:
>
>> Alexander Huemer wrote:
>>
>>> Frans Pop wrote:
>>>
>>>> On Thursday 24 September 2009, Frans Pop wrote:
>>>>
>>>>>> error message from .31:
>>>>>> [157152.418524] irq 23: nobody cared
>>>>>>
>>>> Looking at the changes in drivers/ata/ahci.c, it might be worth to
>>>> try if reverting the following commit fixes the issue:
>>>>
>>>> commit a5bfc4714b3f01365aef89a92673f2ceb1ccf246
>>>> Author: Tejun Heo <tj@kernel.org>
>>>> Date: Fri Jan 23 11:31:39 2009 +0900
>>>>
>>>> ahci: drop intx manipulation on msi enable
>>>>
>>> i reproduced the issue.
>>>
>>> [ 3486.747729] Pid: 9573, comm: jc1 Tainted: G W 2.6.31-gentoo-blackbit #2
>>> [ 3486.747731] Call Trace:
>>> [ 3486.747733] <IRQ> [<ffffffff81066e3f>] ? __report_bad_irq+0x30/0x7d
>>> [ 3486.747743] [<ffffffff81066f93>] ? note_interrupt+0x107/0x170
>>> [ 3486.747746] [<ffffffff81067580>] ? handle_fasteoi_irq+0x8a/0xaa
>>> [ 3486.747750] [<ffffffff8100d1cf>] ? handle_irq+0x17/0x1d
>>> [ 3486.747752] [<ffffffff8100c84b>] ? do_IRQ+0x54/0xb2
>>> [ 3486.747756] [<ffffffff8100b6d3>] ? ret_from_intr+0x0/0xa
>>> [ 3486.747758] <EOI>
>>> [ 3486.747759] handlers:
>>> [ 3486.747761] [<ffffffff813d2a6f>] (ahci_interrupt+0x0/0x426)
>>> [ 3486.747765] Disabling IRQ #23
>>>
>>> i will report back after a compile run of gcc-4.3.4 with a kernel
>>> without the commit you suggested.
>>>
>> 4 compilation runs of gcc-4.3.4 finished without the issue re-appearing.
>> it seems like you guessed right, Frans.
>>
>
> Great. Glad to hear it worked out.
>
>
>> i also found this:
>> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commi
>> t;h=31b239ad1ba7225435e13f5afc47e48eb674c0cc i'll report on bugzilla.
>>
>
> So with the revert already in mainline for .32, the only thing left is for
> that to get included in stable updates for .30 and .31.
>
> Cheers,
> FJP
>
please see the last comment in [1].
can i do anything else to help ?

thanks again
-alex

[1] http://bugzilla.kernel.org/show_bug.cgi?id=14124


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