Crash in openjdk8 while using ShenandoahGC

[Roman Kennke]

Hi Peter,

Thank you for testing Shenandoah and reporting this bug.

Yes, the hs_err and gc log files would be very useful. Please upload it
somewhere and post a link, if possible.

Yes, for now, this is the preferred channel for filing Shenandoah bugs ;-)

Best regards,
Roman

> Our Java application running on an AWS r3.xlarge instance under Ubuntu
> 14.04 crashed with the following after about 12 hours of fairly CPU- and
> GC-intense processing:
> 
> #  Internal Error (safepoint.cpp:314), pid=3384, tid=0x00007f7448f77700
> #  guarantee(PageArmed == 0) failed: invariant
> #
> # JRE version: OpenJDK Runtime Environment (8.0_141) (build
> 1.8.0_141-internal-15)
> # Java VM: OpenJDK 64-Bit Server VM (25.141-b15 mixed mode linux-amd64
> compressed oops)
> 
> The complete hs_err and gc.log files are available if useful. Unfortunately
> the machine was not equipped with enough storage to hold a crashdump file.
> I have not yet reproduced this, so do not yet know how easy or hard that
> may be.
> 
> The JVM was built from source at tag jdk8u141-b15,
> 
> JVM flags from gc.log:
> 
> OpenJDK 64-Bit Server VM (25.141-b15) for linux-amd64 JRE
> (1.8.0_141-internal-15), built on Aug 30 2017 20:07:13 by "pbeaman" with
> gcc 4.8.4
> Memory: 4k page, physical 31399920k(29785452k free), swap 0k(0k free)
> CommandLine flags: -XX:InitialHeapSize=22506635264
> -XX:MaxHeapSize=22506635264 -XX:MaxMetaspaceSize=201326592
> -XX:NumberOfGCLogFiles=10 -XX:-OmitStackTraceInFastThrow
> -XX:OnOutOfMemoryError=touch /opt/bti/OUT_OF_MEMORY
> -XX:+PrintAdaptiveSizePolicy -XX:+PrintGC
> -XX:+PrintGCApplicationStoppedTime -XX:+PrintGCDateStamps
> -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintTenuringDistribution
> -XX:+UseCompressedClassPointers -XX:+UseCompressedOops
> -XX:-UseGCLogFileRotation -XX:+UseShenandoahGC -XX:+UseStringDeduplication
> 
> We are testing Shenandoah as a possible cure for long Full GC stop times in
> G1.
> 
> Please let me know if there's a preferred channel for filing Shenandoah
> bugs.