| commit | e97df76377b8b3b1f7dfd5d6f8a1d5a31438b140 | [log] [tgz] |
|---|---|---|
| author | Peter Zijlstra <peterz@infradead.org> | Wed Feb 05 20:48:51 2014 +0100 |
| committer | Ingo Molnar <mingo@kernel.org> | Sun Feb 09 13:08:24 2014 +0100 |
| tree | cd326431ed849d6778b31990970b8fcafac71a2c | |
| parent | 2737fce8bc8dea2852289df29b4f92e6a7fb7c91 [diff] |
perf/x86/intel/p6: Add userspace RDPMC quirk for PPro PPro machines can die hard when PCE gets enabled due to a CPU erratum. The safe way it so disable it by default and keep it disabled. See erratum 26 in: http://download.intel.com/design/archives/processors/pro/docs/24268935.pdf Reported-and-Tested-by: Mark Davies <junk@eslaf.co.uk> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Stephane Eranian <eranian@google.com> Cc: Vince Weaver <vince@deater.net> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20140206170815.GW2936@laptop.programming.kicks-ass.net Signed-off-by: Ingo Molnar <mingo@kernel.org>