]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
perf/x86: Blacklist all MEM_*_RETIRED events for Ivy Bridge
authorPeter Zijlstra <a.p.zijlstra@chello.nl>
Fri, 3 May 2013 12:11:23 +0000 (14:11 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 11 May 2013 14:18:21 +0000 (07:18 -0700)
commit1a2d6c494667deb43c5dfca27b719a1446a1d641
tree5824733c4c1176769246c7531df08b4fc9a7ceb0
parent358247fd37fbb17ac043548f0921d45d4f0009e2
perf/x86: Blacklist all MEM_*_RETIRED events for Ivy Bridge

commit 741a698f420c34c458294a6accecfbad702a7c52 upstream.

Errata BV98 states that all MEM_*_RETIRED events corrupt the
counter value of the SMT sibling's counters. Blacklist these
events

Reported-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: eranian@google.com
Link: http://lkml.kernel.org/r/20130503121256.083340271@chello.nl
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: http://lkml.kernel.org/n/tip-jwra43mujrv1oq9xk6mfe57v@git.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/x86/kernel/cpu/perf_event_intel.c