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From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: linux-pm@lists.linux-foundation.org
Subject: Re: [linux-pm] e978aa7d (cpuidle: Move dev->last_residency update...) broke suspend
Date: Sat, 12 Nov 2011 02:18:17 +0100
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Cc: Ferenc Wagner <wferi@niif.hu>,
        Deepthi Dharwar <deepthi@linux.vnet.ibm.com>,
        linux-kernel@vger.kernel.org
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On Saturday, November 12, 2011, Ferenc Wagner wrote:
> Hi,
> 
> Since e978aa7d (cpuidle: Move dev->last_residency update to driver
> enter routine; remove dev->last_state) my ThinkPad R50e can't suspend
> anymore, it just freezes instead.  I controlled git bisect by booting
> with break=top and issuing 'echo mem >/sys/power/state'.  My config is
> attached.

What's the output of "cat /sys/devices/system/cpu/cpuidle/current_driver" ?

Rafael