linux-kernel - Re: regression: fireware causes oops during system

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Message-ID: <20071005070817.GA8821@elf.ucw.cz>
Date:	Fri, 5 Oct 2007 09:08:17 +0200
From:	Pavel Machek <pavel@....cz>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Stefan Richter <stefanr@...6.in-berlin.de>,
	Ben Collins <ben.collins@...ntu.com>,
	kernel list <linux-kernel@...r.kernel.org>,
	linux1394-devel@...ts.sourceforge.net, Ingo Molnar <mingo@...e.hu>
Subject: Re: regression: fireware causes oops during system

Hi!

> > This commit is certainly OK, as it should merely preserve status quo.
> > Also note that Pavel wrote in his initial post that the problem became
> > apparent way after -rc1.  Full quote:
> > 
> > | I noticed empty suspend stopped working around 2.6.23-rc4, and it is
> > | still present in 2.6.23-rc6. To reproduce
> > |
> > | swapoff -a
> > | echo disk > /sys/power/state
> > | echo disk > /sys/power/state
> > |
> > | Unsetting
> > |
> > | CONFIG_IEEE1394=y
> > |
> > | solves the problem.
> 
> Yes.
> 
> I thought that there might be a later change that exposed a bug in it.
> 
> Hm.  Pavel, can you do
> 
> # echo test > /sys/power/disk
> # echo disk > /sys/power/state
> 
> and see what happens?

root@amd:~# echo test  > /sys/power/disk
root@amd:~# echo disk > /sys/power/state
root@amd:~# echo disk > /sys/power/state

Produces nothing interesting... I also did few hibernation/resume
cycles, and everything seems to work ok. But when I do swapoff then
try to hibernate, it fails on second try. Weird.
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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