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| author | Adrian Hunter <[email protected]> | 2014-07-22 13:17:10 +0000 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2014-07-23 14:12:59 +0000 |
| commit | deaff8b659cf4d34181c087b8cdf74f1eb17b02b (patch) | |
| tree | c8ea4c936701091f4bc8a238fe8cbbe5d6d560de /tools/perf/builtin-script.c | |
| parent | perf tools: Fix incorrect fd error comparison (diff) | |
| download | kernel-deaff8b659cf4d34181c087b8cdf74f1eb17b02b.tar.gz kernel-deaff8b659cf4d34181c087b8cdf74f1eb17b02b.zip | |
perf tools: Fix jump label always changing during tracing
Intel PT decoding walks the object code to reconstruct the trace. A
jump label change during tracing causes decoding errors.
The "Enable close-on-exec flag on perf file descriptor" patch caused
there to be always a jump label change.
It was found that using a per-cpu context instead of a per-thread
context for the probe of the close-on-exec feature, made the problem go
away.
Signed-off-by: Adrian Hunter <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'tools/perf/builtin-script.c')
0 files changed, 0 insertions, 0 deletions