JVM Crashes with SIGSEGV for build shenandoah-jdk8-b498-20191212

[Jestan Nirojan]

Hi , I have been using shenandoah-jdk8 for Intellij Idea more than a year
now :) and  no more pauses or hiccups while working with large projects, it
works great.

Today I updated the jdk to latest build (shenandoah-jdk8-b498-20191212) and
after that, JVM crashes with following error (after running Intellij Idea
for a minute).


# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007fec956b0e1e, pid=23911, tid=0x00007fec7f0a2700
#
# JRE version: OpenJDK Runtime Environment (8.0) (build
1.8.0-builds.shipilev.net-openjdk-shenandoah-jdk8-b498-20191212)
# Java VM: OpenJDK 64-Bit Server VM (25.71-b498-20191212 mixed mode
linux-amd64 compressed oops)
# Problematic frame:
# V  [libjvm.so+0x9c1e1e]  void
ShenandoahConcurrentMark::mark_loop_work<ShenandoahMarkRefsClosure,
true>(ShenandoahMarkRefsClosure*, unsigned short*, unsigned int,
ShenandoahTaskTerminator*)+0xf9e

Stack: [0x00007fec7efa2000,0x00007fec7f0a3000],  sp=0x00007fec7f0a1c80,
 free space=1023k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native
code)
V  [libjvm.so+0x9c1e1e]  void
ShenandoahConcurrentMark::mark_loop_work<ShenandoahMarkRefsClosure,
true>(ShenandoahMarkRefsClosure*, unsigned short*, unsigned int,
ShenandoahTaskTerminator*)+0xf9e
V  [libjvm.so+0x9c36c9]  void
ShenandoahConcurrentMark::mark_loop_prework<true>(unsigned int,
ShenandoahTaskTerminator*, ReferenceProcessor*, bool)+0x1f9
V  [libjvm.so+0x9d6a08]  ShenandoahConcurrentMarkingTask::work(unsigned
int)+0xa8
V  [libjvm.so+0xb1a078]  GangWorker::loop()+0xc8
V  [libjvm.so+0x8cdc52]  java_start(Thread*)+0xf2


Here is the full crash log
https://gist.github.com/jestan/d4abe02313b51d9b4208d699e779559b

thanks,
-Jestan Nirojan