diff options
| author | Tony Luck <[email protected]> | 2012-07-19 11:28:46 -0700 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2012-07-26 15:05:47 +0200 |
| commit | 61b0fccd7f114573f973dfe25d864608822dc09e (patch) | |
| tree | 8ba7f8a8d984cba1ae1c1a528e96309e6a73cd2a /tools/perf/util/scripting-engines/trace-event-perl.c | |
| parent | 736edce5f395b8309a61aa62c36c4356abc83219 (diff) | |
x86/mce: Add quirk for instruction recovery on Sandy Bridge processors
Sandy Bridge processors follow the SDM (Vol 3B, Table 15-20) and
set both the RIPV and EIPV bits in the MCG_STATUS register to
zero for machine checks during instruction fetch. This is more
than a little counter-intuitive and means that Linux cannot
recover from these errors. Rather than insert special case code
at several places in mce.c and mce-severity.c, we pretend the
EIPV bit was set for just this case early in processing the
machine check.
Acked-by: Borislav Petkov <[email protected]>
Signed-off-by: Tony Luck <[email protected]>
Cc: Chen Gong <[email protected]>
Cc: Huang Ying <[email protected]>
Cc: Hidetoshi Seto <[email protected]>
Link: http://lkml.kernel.org/r/180a06f3f357cf9f78259ae443a082b14a29535b.1343078495.git.tony.luck@intel.com
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-perl.c')
0 files changed, 0 insertions, 0 deletions