JDK-7023785 : G1: SIGSEGV in G1ParCopyHelper::copy_to_survivor_space(oopDesc*)
  • Type: Bug
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 6u25
  • Priority: P2
  • Status: Closed
  • Resolution: Duplicate
  • OS: linux_redhat_4.0
  • CPU: x86
  • Submitted: 2011-03-02
  • Updated: 2013-09-18
  • Resolved: 2011-03-07
Related Reports
Duplicate :  
JDK-7020042 - G1: Partially remove fix for 6994628
Relates :  
JDK-7009266 - G1: assert(obj->is_oop_or_null(true )) failed: Error
Description
Crash in G1:

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x402110c2, pid=27652, tid=1118796704
#
# JRE version: 6.0_25-b02
# Java VM: Java HotSpot(TM) Client VM (20.0-b09 mixed mode linux-x86 )
# Problematic frame:
# V  [libjvm.so+0x1f00c2]  G1ParCopyHelper::copy_to_survivor_space(oopDesc*)+0x12
#
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
#

---------------  T H R E A D  ---------------
Comments
EVALUATION After running the test for 72 hours with jdk:6u25/b03,jvm:hs20/b10 the test PASS.
07-03-2011
EVALUATION Asked reporting SQE engineer to try hs20 build 10 which includes the change for 7020042 which partially backs out the change that enables reference discovery and processing during concurrent marking. The test case is exactly the same as 7009266 (KitchenSink/client). With the workaround the Kitchensink app ran to completeness with VerifyDuringGC on - previously it was failing after 1 or 2 hours.
02-03-2011