Messages in this thread Patch in this message | | | From | Namhyung Kim <> | Subject | [PATCH 1/3] perf top: Fix freeze on --call-graph flat/folded | Date | Thu, 26 Nov 2015 16:08:18 +0900 |
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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> --- tools/perf/util/callchain.c | 1 + 1 file changed, 1 insertion(+)
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); } -- 2.6.2
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