linux-kernel - Re: Linux 2.6.20-rc6 - suspend / resume ata

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Message-ID: <45BBD4CA.70303@garzik.org>
Date:	Sat, 27 Jan 2007 17:40:10 -0500
From:	Jeff Garzik <jeff@...zik.org>
To:	tglx@...utronix.de
CC:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: Linux 2.6.20-rc6 - suspend / resume ata_piix

Thomas Gleixner wrote:
> On Wed, 2007-01-24 at 18:58 -0800, Linus Torvalds wrote:
>> It's been more than a week since -rc5, but I blame everybody (including 
>> me) being away for Linux.conf.au and then me waiting for a few days 
>> afterwards to let everybody sync up.
> 
> ata_piix survives exactly one suspend resume cylce. After resuming the
> second time the disk is not longer usable.
> 
> After the first resume a simple "emacs -nw bla.txt" takes already ~45sec
> to launch, but there are no kernel messages.
> 
> During the second resume the ATA interrupt gets disabled due to an
> unhandled interrupt.
> 
> This is 100% reproducible. So I can provide as much info as needed.

Is this a regression, or behavior that's always been present?

If its a regression, what changeset caused the problem?

	Jeff



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