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  1. JDK
  2. JDK-8270869

G1ServiceThread may not terminate

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Details

    • Bug
    • Status: Resolved
    • P4
    • Resolution: Fixed
    • 17, 18
    • 18
    • hotspot
    • gc
    • b07

    Description

      In G1ServiceThread, there is a race between stop_service and the termination check in sleep_before_next_cycle. The latter checks should_terminate outside the lock, and then enters the monitor and waits for notification or the next task to be ready. If stop is requested after the should_terminate check but before entering the monitor, the stop request will be missed. The should_terminate check should be (re)done after entering the monitor. It will eventually terminate if there are periodic tasks, but only when the next task becomes ready.

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              kbarrett Kim Barrett
              kbarrett Kim Barrett
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                Created:
                Updated:
                Resolved: