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| author | Namhyung Kim <namhyung.kim@lge.com> | 2012-05-31 14:43:27 +0900 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-05-31 11:20:34 -0300 |
| commit | 114067b69e7b2c691faace0e33db2f04096f668d (patch) | |
| tree | 68e4e8e56fe448436a0efbdd03cd342768a32f0e /tools/perf/util/PERF-VERSION-GEN | |
| parent | 472606458f3e1ced5fe3cc5f04e90a6b5a4732cf (diff) | |
| download | linux-114067b69e7b2c691faace0e33db2f04096f668d.tar.gz linux-114067b69e7b2c691faace0e33db2f04096f668d.tar.xz linux-114067b69e7b2c691faace0e33db2f04096f668d.zip | |
perf tools: Check if callchain is corrupted
We faced segmentation fault on perf top -G at very high sampling rate
due to a corrupted callchain. While the root cause was not revealed (I
failed to figure it out), this patch tries to protect us from the
segfault on such cases.
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Namhyung Kim <namhyung.kim@lge.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Sunjin Yang <fan4326@gmail.com>
Link: http://lkml.kernel.org/r/1338443007-24857-2-git-send-email-namhyung.kim@lge.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/PERF-VERSION-GEN')
0 files changed, 0 insertions, 0 deletions