Github user zwoop commented on the issue: https://github.com/apache/trafficserver/issues/1561 Yeh, I think you have to create the mutex. Before all these changes, the core would create one for you if it needed it, but that had a massive single mutex around that. So instead, we now assert, and the plugins must be updated, because they are using APIs that requires the mutex. It is possible there's a bug somewhere, but odds are that the plugin is using an API that needs a cont mutex.
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