JDK-8255459 : Shenandoah GC crashes on forceEarlyReturn006
  • Type: Bug
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 16
  • Priority: P4
  • Status: Closed
  • Resolution: Duplicate
  • Submitted: 2020-10-27
  • Updated: 2020-10-28
  • Resolved: 2020-10-28
Related Reports
Duplicate :  
JDK-8255400 - Shenandoah: C2 failures after JDK-8255000
Relates :  
JDK-8255452 - Doing GC during JVMTI MethodExit event posting breaks return oop
Description
If you run test: vmTestbase/nsk/jdi/ThreadReference/forceEarlyReturn/forceEarlyReturn006/TestDescription.java
with -XX:+UseShenandoahGC, it crashes like:

# To suppress the following error report, specify this argument
# after -XX: or in .hotspotrc:  SuppressErrorAt=/shenandoahSupport.cpp:1909
#
# A fatal error has been detected by the Java Runtime Environment:
#
#  Internal Error (src/hotspot/share/gc/shenandoah/c2/shenandoahSupport.cpp:1909), pid=2585, tid=2599
#  Error: assert(controls.member(u->in(0))) failed
#

To reproduce:

make test TEST=vmTestbase/nsk/jdi/ThreadReference/forceEarlyReturn/forceEarlyReturn006/TestDescription.java JTREG="VM_OPTIONS=-XX:+UseShenandoahGC"
Comments
I believe this duplicates JDK-8255400. Re-open if not.
28-10-2020