linux-kernel - Re: 2.6.35.*: horrible (exponential? >linear) slowdown to unusability (ACPI idle?)

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Date:	Wed, 8 Sep 2010 17:35:48 -0400
From:	John Drescher <drescherjm@...il.com>
To:	Nix <nix@...eri.org.uk>
Cc:	Damien Wyart <damien.wyart@...e.fr>, linux-kernel@...r.kernel.org
Subject: Re: 2.6.35.*: horrible (exponential? >linear) slowdown to unusability
 (ACPI idle?)

> On 6 Sep 2010, Damien Wyart uttered the following:
>> So if you can reproduce it quite easily, I guess bisection (even
>
> ha ha ha. I thought I could, but it's intermittent enough to make
> bisection pretty much impossible, and when I gave up and rebooted back
> into 2.6.35.4 the bug went away entirely.
>
> I don't think bisection will work with something this intermittent :/

I believe I have the same problem reported in your first post. Or at
least a lot of the symptoms.

http://forums.gentoo.org/viewtopic-t-842775-postdays-0-postorder-asc-start-0.html

I may try bisecting the kernel if no progress is made on this front in
a few weeks. I am pretty busy at the moment to do much more testing. I
have already spent a few days at this.

John
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