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| author |   Namhyung Kim <namhyung@kernel.org> | 2015-11-26 16:08:18 +0900 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-11-26 13:32:08 -0300 |
| commit | 0356218a68551f051998f4fb5074a1eed7a346fe (patch) | |
| tree | c599e54a2a67135df7f4a94127672ca3ddba4922 /tools/perf/util/callchain.c | |
| parent | perf callchain: Honor hide_unresolved (diff) | |
| download | linux-dev-0356218a68551f051998f4fb5074a1eed7a346fe.tar.xz linux-dev-0356218a68551f051998f4fb5074a1eed7a346fe.zip | |
perf top: Fix freeze on --call-graph flat/folded
The callchain rbtree is rebuilt periodically, so it needs to
reinitialize the root everytime. Otherwise it can be stuck in the
rbtree insertion with stale pointers.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1448521700-32062-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/callchain.c')
| -rw-r--r-- | tools/perf/util/callchain.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c index fc3b1e0d09ee..564377d2bebf 100644 --- a/tools/perf/util/callchain.c +++ b/tools/perf/util/callchain.c @@ -290,6 +290,7 @@ static void sort_chain_flat(struct rb_root *rb_root, struct callchain_root *root, u64 min_hit, struct callchain_param *param __maybe_unused) { + *rb_root = RB_ROOT; __sort_chain_flat(rb_root, &root->node, min_hit); } |