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  1. JDK
  2. JDK-8040804

G1: Concurrent mark stuck in loop calling os::elapsedVTime()

    Details

    • Type: Bug
    • Status: Closed
    • Priority: P2
    • Resolution: Fixed
    • Affects Version/s: 8u20, 9
    • Fix Version/s: 9
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
      gc
    • Resolved In Build:
      b15
    • Verification:
      Verified

      Backports

        Description

        Concurrent mark threads use os::elapsedVTime() to regulate its CPU usage over time. However, it seems that these threads can get stuck in a loop calling os::elapsedVTime() over and over without making any progress, which causes the whole marking concurrent phase to hang.

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                • Assignee:
                  pliden Per Liden
                  Reporter:
                  pliden Per Liden
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                  • Created:
                    Updated:
                    Resolved: