linux-kernel - Resume from S2R fails after dpm

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Date:	Wed, 28 Feb 2007 13:35:37 -0700
From:	Tim Gardner <timg@....com>
To:	nigel@...el.suspend2.net, pavel@....cz
CC:	linux-kernel@...r.kernel.org, Ben Collins <ben.collins@...ntu.com>
Subject: Resume from S2R fails after dpm_resume()

Gentlemen,

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?

rtg
-- 
Tim Gardner timg@....com www.tpi.com
OR 503-601-0234 x102 MT 406-443-5357
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