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  1. JDK
  2. JDK-8057038

Speculative traps not robust when compilation and class unloading are concurrent

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Details

    • Bug
    • Status: Resolved
    • P4
    • Resolution: Fixed
    • 9
    • 9
    • hotspot
    • b31

    Backports

      Description

        Speculative traps recorded in a MethodData can be removed at a safepoint. During a compilation, as a MethodData is copied and translated by a compiler thread to build a ciMethodData, a safepoint can occur as speculative traps are being copied, and not yet copied speculative traps may be removed. That changes the layout of the traps. The loop doing the copying doesn't handle it currently.

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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-8083372 Speculative traps not robust when compilation and class unloading are concurrent

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • 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-8269422 Speculative traps not robust when compilation and class unloading are concurrent

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • 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-8258774 Speculative traps not robust when compilation and class unloading are concurrent

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8139247 Improper locking of MethodData::_extra_data_lock

            • P3 - Major loss of function.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8215889 assert(!_unloading) failed: This oop is not available to unloading class loader data with ZGC

            • P3 - Major loss of function.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8216427 ciMethodData::load_extra_data() does not always unpack the last entry

            • P3 - Major loss of function.
            • Resolved

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                roland Roland Westrelin
                roland Roland Westrelin
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                Dates

                  Created:
                  Updated:
                  Resolved: