linux-kernel - Re: 2.6.20-rc6-mm3

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Message-Id: <200703011211.09055.fzu@wemgehoertderstaat.de>
Date:	Thu, 1 Mar 2007 12:11:08 +0100
From:	Karsten Wiese <fzu@...gehoertderstaat.de>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Andrew Morton <akpm@...l.org>,
	Maciej Rutecki <maciej.rutecki@...il.com>,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: Re: 2.6.20-rc6-mm3

Am Donnerstag, 1. Februar 2007 11:44 schrieb Karsten Wiese:
> I think the wait is caused by an interrupt starting somewhere under
> sysdev_resume(void).
> possibly lapic timer interrupt? Will try to trace that.

Some evidence:
[root@a64 Desktop]# echo reboot > /sys/power/disk
[root@a64 Desktop]# cat /proc/interrupts; echo disk > /sys/power/state ; cat /proc/interrupts
<snip>
LOC:    2215504
<snip, cmos clock untouched>
LOC:    2216432
<snip>
[root@a64 Desktop]# cat /proc/interrupts; echo disk > /sys/power/state ; cat /proc/interrupts
<snip>
LOC:    2225752
<snip, cmos clock advanced by 1 month under biossettings>
LOC:    2238383
<snip>

      Karsten


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