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SubjectRe: linux-next Regression: Unable to locate IOAPIC
Hi Ingo, Yinghai,

It looks like the code introduced by
2944e16b25e7fb8b5ee0dd9dc7197a0f9e523cfd
is causing this problem. At least it is new between -rc5 (working) and
linux-next (not working).

Regards,
Alex.


Daniel Exner wrote:
> Hi all,
>
> Alexey Starikovskiy wrote:
>
>> Hi Daniel,
>>
>> Could you please provide full dmesg and acpidump outputs?
>>
> I attached dmesg and config , both from working 2.6.26-rc5 with git-acpi patch
> below and from linux-next snapshot 20080604.
> I also attached acpidump that was done while using stock 2.6.25-fw5 from my
> distro. (But I think that doesnt matter, at least it shouldn't ;)
>
>
>> Daniel Exner wrote:
>>
>>> Andrew Morton wrote:
>>>
>>>> On Fri, 6 Jun 2008 19:30:28 +0200 Daniel Exner <dex@dragonslave.de>
>>>>
> wrote:
>
>>>>> Andrew Morton wrote:
>>>>>
>>>>>> (cc linux-acpi)
>>>>>>
>>>>>> On Thu, 5 Jun 2008 11:00:12 +0200 Daniel Exner <dex@dragonslave.de>
>>>>>>
>>> wrote:
>>>
>>>>>>> Hi!
>>>>>>>
>>>>>>> (Added myself to CC, because I'm not subscribed)
>>>>>>>
>>>>>>> with linux-next snapshot 20080604 my Laptop morphes into sitting duck
>>>>>>> and I think this is due to this:
>>>>>>>
>>>>>> I assume 2.6.26-rc5 is OK?
>>>>>>
>>>>> Indeed.. just tried it with (nearly) the same config: no unable to
>>>>> locate IOAPIC
>>>>>
>>>>> Will try todays next snapshot above -rc5 now.
>>>>>
>>>> OK, thanks.
>>>>
>>>> It would be great if you could test 2.6.26-rc5 plus
>>>> http://userweb.kernel.org/~akpm/git-acpi.patch. That'll allow us to
>>>> confirm that the regression is due to changes in the acpi tree.
>>>>
>>> Sorry for the delay.. real-life you know ;)
>>>
>>> I guess you'd expect me to confirm the behavior on rc5 with this patch
>>> aplied, but .. well this Kernel works!
>>>
> To clarify myself:
> 2.6.25.5: --> relatively fast no IOAPIC Errors in dmesg
> 2.6.26-rc5: --> relatively no IOAPIC Errors in dmesg
> 2.6.26-rc5 + git-acpi Patch: --> relatively no IOAPIC Errors in dmesg
> 2.6.26-rc5 + linux-next snapshot 20080604 --> even slower than before my ide
> Patch many "unable to locate IOAPIC" Errors
>
>
> So I think the problem lies not in the acpi tree but somewhre else.
>
> Is it possible to tell git to explicitly _exclude_ a specific tree while
> bisecting?
>
> --
> Greetings
> Daniel Exner
>



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