From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Fri, 5 Mar 2010 15:29:14 +0000 (+0100)
Subject: perf, x86: Robustify PEBS fixup
X-Git-Tag: v2.6.35-rc1~522^2~225
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a562b1871f7f7d2f3a835c3c1e07fa58d473cfb7;p=pandora-kernel.git

perf, x86: Robustify PEBS fixup

It turns out the LBR is massively unreliable on certain CPUs, so code the
fixup a little more defensive to avoid crashing the kernel.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: paulus@samba.org
Cc: eranian@google.com
Cc: robert.richter@amd.com
Cc: fweisbec@gmail.com
LKML-Reference: <20100305154129.042271287@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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