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From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Subject: Re: new regression in 2.6.25-rc3: can't resume from suspend to ram, ata1 errors
Date: Mon, 25 Feb 2008 22:28:59 +0100
User-Agent: KMail/1.9.6 (enterprise 0.20071204.744707)
Cc: "Michael S. Tsirkin" <m.s.tsirkin@gmail.com>,
       "Andrew Morton" <akpm@linux-foundation.org>,
       LKML <linux-kernel@vger.kernel.org>, "Pavel Machek" <pavel@suse.cz>,
       "Jeff Garzik" <jeff@garzik.org>, jgarzik@pobox.com,
       linux-ide@vger.kernel.org
References: <8f53421d0802251257o75d2975dldcfb99a2dc5e3539@mail.gmail.com> <200802252200.23495.rjw@sisk.pl>
In-Reply-To: <200802252200.23495.rjw@sisk.pl>
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On Monday 25 February 2008, Rafael J. Wysocki wrote:
> 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?

Jeff, this was applied between -rc2 and -rc3.

100% cleanup patches which change behavior are potentialy
risky and shouldn't be considered as a -rc material.

Thanks,
Bart
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