From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Mon, 11 Jul 2011 14:28:50 +0000 (+0200)
Subject: sched: Fix 32bit race
X-Git-Tag: v3.0~35
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c64be78ffb415278d7d32d6f55de95c73dcc19a4;p=pandora-kernel.git

sched: Fix 32bit race

Commit 3fe1698b7fe0 ("sched: Deal with non-atomic min_vruntime reads
on 32bit") forgot to initialize min_vruntime_copy which could lead to
an infinite while loop in task_waking_fair() under some circumstances
(early boot, lucky timing).

[ This bug was also reported by others that blamed it on the RCU
  initialization problems ]

Reported-and-tested-by: Bruno Wolff III <bruno@wolff.to>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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