linux-kernel - Re: [PATCH] SATA / AHCI: Do not play with the link PM during suspend to RAM

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Message-ID: <4C6A4395.8080804@gmail.com>
Date:	Tue, 17 Aug 2010 10:08:53 +0200
From:	Tejun Heo <htejun@...il.com>
To:	Stephan Diestelhorst <stephan.diestelhorst@....com>
CC:	"Rafael J. Wysocki" <rjw@...k.pl>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>,
	"linux-pm@...ts.osdl.org" <linux-pm@...ts.osdl.org>,
	Stephan Diestelhorst <stephan.diestelhorst@...il.com>
Subject: Re: [PATCH] SATA / AHCI: Do not play with the link PM during suspend
 to RAM

Hello,

On 08/17/2010 09:51 AM, Stephan Diestelhorst wrote:
> On Thursday 05 August 2010 18:08:02 Tejun Heo wrote:
>> Can you please try the following patch and see whether the problem
>> goes away?
> 
> I've finally managed to get this to compile and test. (Hit a bug with
> Debian's make-kpkg and other nuisances...)
> 
> The problem is still there. On some resumes I get the dreadful dead
> disk again:
> 
> end_request: I/O error , dev sda sector ...
> sd 0:0:0:0: [sda] Unhandled error code
> sd 0:0:0:0: [sda] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
> sd 0:0:0:0: [sda] CDB: Read(10): 28 00 0e a4 77 a8 0 00 08 00
> (many of those)
> 
> Can't access /var/log/messages right now, due to broken I/O. Will try
> to trigger it again and check for the qc timeout messages..

Yeah, it would great to have the log.  So, it seems like the hardware
is actually buggy then.  :-(

Thanks.

-- 
tejun
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