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Subject: Re: s2ram broken (perf)
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Jiri Slaby <jslaby@suse.cz>
Cc: Ingo Molnar <mingo@elte.hu>,
        Linux-pm mailing list <linux-pm@lists.linux-foundation.org>,
        LKML <linux-kernel@vger.kernel.org>, Jiri Slaby <jirislaby@gmail.com>
Date: Wed, 21 Sep 2011 22:35:03 +0200
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On Wed, 2011-09-21 at 22:24 +0200, Jiri Slaby wrote:
> Hi,
> 
> this commit:
> commit 144060fee07e9c22e179d00819c83c86fbcbf82c
> Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
> Date:   Mon Aug 1 12:49:14 2011 +0200
> 
>     perf: Add PM notifiers to fix CPU hotplug races
> 
> breaks resume from s2ram for me, paradoxically. The text which was on
> the console before suspend appears when I resume. But the system hangs
> hard at that point. Reverting that commit on the top of -next helps.

bah.. nor did it fix the problem that was reported apparently... best to
back out and see if I can actually reproduce on something. I hate
developing on laptops :/