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  1. JDK
  2. JDK-8293998

[PPC64] JfrGetCallTrace: assert(_pc != nullptr) failed: must have PC

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    • jfr
    • b17
    • ppc

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        The assertion was hit in JavaThread::pd_get_top_frame_for_profiling (after JDK-8290004 was fixed) while testing jdk/jfr/api/consumer/log/TestSystemEvents.java.

        The acquire barrier from JDK-8290004 has helped, but not fixed all problems. "last_Java_pc" can still be observed as 0 in rare cases because not all writers use a release barrier.

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                mdoerr Martin Doerr
                mdoerr Martin Doerr
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