diff options
| author | Cyrill Gorcunov <[email protected]> | 2011-02-16 14:08:02 +0300 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2011-02-16 12:26:12 +0100 |
| commit | 7d44ec193d95416d1342cdd86392a1eeb7461186 (patch) | |
| tree | 4abe24161846533d00b0c50a69e600ba190df398 /tools/perf/util/trace-event-scripting.c | |
| parent | 85e2efbb1db9a18d218006706d6e4fbeb0216213 (diff) | |
perf, x86: P4 PMU: Fix spurious NMI messages
Several people have reported spurious unknown NMI
messages on some P4 CPUs.
This patch fixes it by checking for an overflow (negative
counter values) directly, instead of relying on the
P4_CCCR_OVF bit.
Reported-by: George Spelvin <[email protected]>
Reported-by: Meelis Roos <[email protected]>
Reported-by: Don Zickus <[email protected]>
Reported-by: Dave Airlie <[email protected]>
Signed-off-by: Cyrill Gorcunov <[email protected]>
Cc: Lin Ming <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Peter Zijlstra <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions