linux-kernel - Re: HDD not suspending properly / dead on resume

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Message-ID: <4C384580.2080507@kernel.org>
Date:	Sat, 10 Jul 2010 12:03:44 +0200
From:	Tejun Heo <tj@...nel.org>
To:	Stephan Diestelhorst <stephan.diestelhorst@...il.com>
CC:	"Rafael J. Wysocki" <rjw@...k.pl>, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org, linux-pm@...ts.osdl.org,
	stephan.diestelhorst@....com
Subject: Re: HDD not suspending properly / dead on resume

On 07/10/2010 08:50 AM, Stephan Diestelhorst wrote:
>> I have a box where this problem is kind of reproducible, but it happens _very_
>> rarely.  Also I can't reproduce it on demand running suspend-resume in a tight
>> loop.  Are you able to reproduce it more regurarly?
> 
> For me it is much more reproducible. If I run multiple direct writing
> dd-s to the disk in question I trigger it rather reliably (~75% or
> higher). See the attached script from an earlier email.
> Maybe that helps triggering your case more reliabl, too?

Can you please try the following git tree?

  git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc.git libata-irq-expect

Thanks.

-- 
tejun
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