diff options
| author | Zhang, Yanmin <yanmin_zhang@linux.intel.com> | 2010-08-06 01:39:08 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-08-18 05:17:39 -0400 |
| commit | 351af0725e5222e35741011d1ea62215c1ed06db (patch) | |
| tree | 1b58323fb9bc7a86c814c3883cd09c3e859b32c3 /security | |
| parent | 9d5f3714e4705a66b6be693f7202192f756f498e (diff) | |
perf, x86: Fix Intel-nhm PMU programming errata workaround
Fix the Errata AAK100/AAP53/BD53 workaround, the officialy documented
workaround we implemented in:
11164cd: perf, x86: Add Nehelem PMU programming errata workaround
doesn't actually work fully and causes a stuck PMU state
under load and non-functioning perf profiling.
A functional workaround was found by trial & error.
Affects all Nehalem-class Intel PMUs.
Signed-off-by: Zhang Yanmin <yanmin_zhang@linux.intel.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1281073148.2125.63.camel@ymzhang.sh.intel.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: <stable@kernel.org> # .35.x
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions