linux-kernel - Re: [linux-pm] e978aa7d (cpuidle: Move dev->last

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Message-ID: <87obwhcy1e.fsf@tac.ki.iif.hu>
Date:	Sat, 12 Nov 2011 13:42:21 +0100
From:	Ferenc Wagner <wferi@...f.hu>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	linux-pm@...ts.linux-foundation.org,
	Deepthi Dharwar <deepthi@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [linux-pm] e978aa7d (cpuidle: Move dev->last_residency update...) broke suspend

"Rafael J. Wysocki" <rjw@...k.pl> writes:

> 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" ?

acpi_idle.

Your patch (ACPI / cpuidle: Remove acpi_idle_suspend) fixes the problem
for me.  Amazing turnaround, really!
-- 
Thanks,
Feri.
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