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  1. JDK
  2. JDK-8255400

Shenandoah: C2 failures after JDK-8255000

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    • Subcomponent:
    • Resolved In Build:
      b23
    • CPU:
      generic
    • OS:
      generic

      Description

      Summary is provisionary, adjust when finding more details.

      Many tests exhibit the following assert with Shenandoah:

      # Internal Error (/home/rkennke/src/openjdk/jdk/src/hotspot/share/gc/shenandoah/c2/shenandoahSupport.cpp:1909), pid=358095, tid=358108
      # Error: assert(controls.member(u->in(0))) failed

      See also attached hs_err and replay files.

      Reproduced by (for example):
      make run-test TEST=vmTestbase/nsk/jdi/ThreadReference/forceEarlyReturn/forceEarlyReturn006/TestDescription.java TEST_VM_OPTS="-XX:+UseShenandoahGC"

      Bisecting shows that this regression is caused by JDK-8255000.

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              Assignee:
              roland Roland Westrelin
              Reporter:
              rkennke Roman Kennke
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