linux-kernel - Re: Regression: 2.6.23-rc9 okay, 2.6.23.1 resume problems

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Date:	Sat, 20 Oct 2007 09:52:42 -0400
From:	Mark Lord <lkml@....ca>
To:	Pavel Machek <pavel@....cz>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...l.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: Regression:  2.6.23-rc9 okay, 2.6.23.1 resume problems

Pavel Machek wrote:
> Hi!
> 
>> Since upgrading to 2.6.23.1 from 2.6.23-rc9, 
>> resume-from-RAM has been misbehaving here.
>>
>> It takes much (+5-7 seconds) longer to resume 
>> *sometimes*, but not all/most of the time.

I suspend those long delays may have something to do with USB,
as it takes longer for my hub + mouse to come back to life
during the sequence.

But I have since then re-applied the powertop patches,
and the long delays vanished.  Back with -rc9 I normally also
had those powertop fixes, and so this problem could be much
older and was never noticed until I ran without them.

I'm no longer actively investigating, as the delays are
gone (powertop patches), and the crashes are much less frequent
since patching.

Cheers
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