Github user shinrich commented on a diff in the pull request:
https://github.com/apache/trafficserver/pull/1100#discussion_r83290881
--- Diff: proxy/http2/Http2ConnectionState.cc ---
@@ -936,30 +940,70 @@ Http2ConnectionState::cleanup_streams()
void
Http2ConnectionState::delete_stream(Http2Stream *stream)
{
+ // The following check allows the method to be called safely on already
deleted streams.
+ if (deleted_from_active_streams(stream)) {
+ return;
+ }
+
+ SCOPED_MUTEX_LOCK(lock, this->mutex, this_ethread());
+
--- End diff --
Why do you need to grab a lock here? Given the mutex sharing between vc
and session and ConnectionState, we should already be holding this mutex.
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