linux-kernel - Re: Resume from S2R fails after dpm

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Message-ID: <20070302141259.GJ2156@elf.ucw.cz>
Date:	Fri, 2 Mar 2007 15:12:59 +0100
From:	Pavel Machek <pavel@....cz>
To:	Tim Gardner <timg@....com>
Cc:	nigel@...el.suspend2.net, linux-kernel@...r.kernel.org,
	Ben Collins <ben.collins@...ntu.com>
Subject: Re: Resume from S2R fails after dpm_resume()

Hi!

> I instrumented 2.6.21-rc1 base/power/resume.c device_resume() with
> TRACE_RESUME(0) as the last statement in the function. Sure enough it
> was the last hash value in the RTC after a hard reboot when resume failed:
> 
> [   12.028820]   hash matches drivers/base/power/resume.c:104
> 
> The machine appears to be absolutely wedged after initiating resume by
> pressing the power button. The disk flashes for a half second or so,
> then thats it.
> 
> It is a Dell XPS, BIOS rev A04. I'm using 'echo 1 > /sys/power/pm_trace;
> echo mem > /sys/power/state' to initiate the S2R sequence.
> 
> Any suggestions on where to go from here?

Did it work ok in 2.6.20? Can you try to get video working/get serial
console/something?
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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