linux-kernel - Re: new regression in 2.6.25-rc3: can't resume from suspend to ram, ata1 errors

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Date:	Mon, 25 Feb 2008 22:00:22 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	"Michael S. Tsirkin" <m.s.tsirkin@...il.com>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"Pavel Machek" <pavel@...e.cz>, "Jeff Garzik" <jeff@...zik.org>,
	jgarzik@...ox.com, linux-ide@...r.kernel.org
Subject: Re: new regression in 2.6.25-rc3: can't resume from suspend to ram, ata1 errors

On Monday, 25 of February 2008, Michael S. Tsirkin wrote:
> On my T61p, 2.6.25-rc2 seems to wake up fine from suspend to ram.
> Not so 2.6.25-rc3: it hangs on suspend to ram, with a blank screen.

Thanks for the report.

> At one point I got lucky and got this on console (wrote down by hand,
> there could be typos):
> ata1: COMRESET failed (errno=-16)
> ata1: COMRESET failed (errno=-16)
> end_request: I/O error, dev sda sector 200554
> Buffer I/O error on device dm-0, logical block 256
> Buffer I/O error on device dm-0, logical block 15695875
> Buffer I/O error on device dm-0, logical block 15695878
> Buffer I/O error on device dm-0, logical block 15695887
> Buffer I/O error on device dm-0, logical block 15695896
> Buffer I/O error on device dm-0, logical block 15695914
> Buffer I/O error on device dm-0, logical block 15958028
> Buffer I/O error on device dm-0, logical block 22118530
> Buffer I/O error on device dm-0, logical block 22315068
> Buffer I/O error on device dm-0, logical block 22347824
> 
> git bisect points at this commit:
> commit 559bbe6cbd0d8c68d40076a5f7dc98e3bf5864b2.
> power_state: get rid of write-only variable in SATA

Jeff, could you revert it, please?

Thanks,
Rafael
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