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  1. JDK
  2. JDK-8270085

Suspend during block transition may deadlock if lock held

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    • b33
    • Verified

    Backports

      Description

        Some locks allow a JavaThread to enter a blocked state.
        If the JavaThread owning the lock is suspended on the back edge when returning to the VM state,
        it may cause a deadlock.

        An example of this is a JavaThread having the Compile_lock and then grabbing the VMOperation_lock,
        the JavaThread may transition to a blocked state due to contentions or if the JavaThread waits on the
        VMOperation_lock.

        The resumer might call a path which needs the Compile_lock before it resumes the suspended JavaThread.
        But since the Compile_lock will not be unlocked until the suspended JavaThread is resumed, we deadlock.

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            backported by

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8271177 Suspend during block transition may deadlock if lock held

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8271643 Suspend during block transition may deadlock if lock held

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8271784 Suspend during block transition may deadlock if lock held

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved
            duplicates

            Bug - A problem which impairs or prevents the functions of the product. JDK-8260062 runtime/handshake/HandshakeDirectTest.java timed out

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved
            relates to

            Bug - A problem which impairs or prevents the functions of the product. JDK-8271251 JavaThread::java_suspend() fails with "fatal error: Illegal threadstate encountered: 6"

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed

            Bug - A problem which impairs or prevents the functions of the product. JDK-8260062 runtime/handshake/HandshakeDirectTest.java timed out

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved
            links to

            Commit Commit openjdk/jdk17/e7f90093

            Review Review openjdk/jdk17/257

            Review Review openjdk/jdk/4828

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                pchilanomate Patricio Chilano Mateo
                rehn Robbin Ehn
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                  Updated:
                  Resolved: