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authorMark Brown <broonie@kernel.org>2015-10-12 18:09:27 +0100
committerMark Brown <broonie@kernel.org>2015-10-12 18:09:27 +0100
commit79828b4fa835f73cdaf4bffa48696abdcbea9d02 (patch)
tree5e0fa7156acb75ba603022bc807df8f2fedb97a8 /tools/perf/util/thread.c
parent721b51fcf91898299d96f4b72cb9434cda29dce6 (diff)
parent8c1a9d6323abf0fb1e5dad96cf3f1c783505ea5a (diff)
Merge remote-tracking branch 'asoc/fix/rt5645' into asoc-fix-rt5645
Diffstat (limited to 'tools/perf/util/thread.c')
-rw-r--r--tools/perf/util/thread.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 28c4b746baa1..0a9ae8014729 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -191,6 +191,12 @@ static int thread__clone_map_groups(struct thread *thread,
if (thread->pid_ == parent->pid_)
return 0;
+ if (thread->mg == parent->mg) {
+ pr_debug("broken map groups on thread %d/%d parent %d/%d\n",
+ thread->pid_, thread->tid, parent->pid_, parent->tid);
+ return 0;
+ }
+
/* But this one is new process, copy maps. */
for (i = 0; i < MAP__NR_TYPES; ++i)
if (map_groups__clone(thread->mg, parent->mg, i) < 0)