Yu Watanabe
45e8c283d8
When the manager process is requested to terminate, if a worker process try to lock a block device and failed, then the worker returns a TRY_AGAIN notification and the event is requeued. Hence, the event queue may have pending events even after manager_exit() is called. In such situation, sd_event_exit() will never called, and udevd will stuck. This makes, after termination is requested, it only checks whether there are any events currently being processed.
System and Service Manager
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