Re: linux-next Regression: Unable to locate IOAPIC

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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@xxxxxxxxxxxxxx>
wrote:
Andrew Morton wrote:
(cc linux-acpi)

On Thu, 5 Jun 2008 11:00:12 +0200 Daniel Exner <dex@xxxxxxxxxxxxxx>
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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