linux-kernel - REGRESSION: "perf: Add PM notifiers ..." breaks resume

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Message-ID: <20111102134900.GB4377@one.firstfloor.org>
Date:	Wed, 2 Nov 2011 14:49:00 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	mingo@...e.hu, torvalds@...ux-foundation.org,
	linux-kernel@...r.kernel.org, rjw@...k.pl
Subject: REGRESSION: "perf: Add PM notifiers ..." breaks resume


Resume stopped working on my Acer Aspire 1830T post 3.1. The screen
just stays black after wakeup.

I bisected it down to 

commit 144060fee07e9c22e179d00819c83c86fbcbf82c
Author: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Date:   Mon Aug 1 12:49:14 2011 +0200

    perf: Add PM notifiers to fix CPU hotplug races
    
Reverting this patch fixes the problem for me.

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only.
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