diff options
| -rw-r--r-- | tools/perf/util/intel-tpebs.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/tools/perf/util/intel-tpebs.c b/tools/perf/util/intel-tpebs.c index 4ad4bc118ea5..3b92ebf5c112 100644 --- a/tools/perf/util/intel-tpebs.c +++ b/tools/perf/util/intel-tpebs.c @@ -162,9 +162,17 @@ new_child: static bool should_ignore_sample(const struct perf_sample *sample, const struct tpebs_retire_lat *t) { - pid_t workload_pid = t->evsel->evlist->workload.pid; - pid_t sample_pid = sample->pid; + pid_t workload_pid, sample_pid = sample->pid; + /* + * During evlist__purge the evlist will be removed prior to the + * evsel__exit calling evsel__tpebs_close and taking the + * tpebs_mtx. Avoid a segfault by ignoring samples in this case. + */ + if (t->evsel->evlist == NULL) + return true; + + workload_pid = t->evsel->evlist->workload.pid; if (workload_pid < 0 || workload_pid == sample_pid) return false; |