RFR(S): 8134468: Lucene test failures with 32 bit JDK 9b78, Server compiler

[Uwe Schindler]

Hi Roland,

Thanks. I was trying b82 yesterday and we already found a new bug. Tests were failing with SIGSEGV on Jenkins:
http://jenkins.thetaphi.de/job/Lucene-Solr-5.x-Linux/14121/
(you can download "hs_err" and "replay" from there, you can also see JVM settings like bitness, Garbage Collector from there).

Current CompileTask:
C2: 866319 28632       4       org.apache.directory.api.ldap.model.name.Rdn::apply (45 bytes)

Stack: [0x00007f3e647e6000,0x00007f3e648e7000],  sp=0x00007f3e648e1e60,  free space=1007k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V  [libjvm.so+0x80ccce]  PhaseIdealLoop::build_loop_late_post(Node*)+0x13e
V  [libjvm.so+0x80d06b]  PhaseIdealLoop::build_loop_late(VectorSet&, Node_List&, Node_Stack&)+0x13b
V  [libjvm.so+0x8102dc]  PhaseIdealLoop::build_and_optimize(bool, bool)+0x88c
V  [libjvm.so+0x4e699a]  Compile::Optimize()+0x6ca
V  [libjvm.so+0x4e83f0]  Compile::Compile(ciEnv*, C2Compiler*, ciMethod*, int, bool, bool, bool)+0x1040
V  [libjvm.so+0x42dbb9]  C2Compiler::compile_method(ciEnv*, ciMethod*, int)+0xe9
V  [libjvm.so+0x4effda]  CompileBroker::invoke_compiler_on_method(CompileTask*)+0x8ca
V  [libjvm.so+0x4f0a58]  CompileBroker::compiler_thread_loop()+0x4a8
V  [libjvm.so+0xa61038]  JavaThread::thread_main_inner()+0xd8
V  [libjvm.so+0xa611d8]  JavaThread::run()+0x158
V  [libjvm.so+0x9048e2]  java_start(Thread*)+0xc2
C  [libpthread.so.0+0x8182]  start_thread+0xc2

siginfo: si_signo: 11 (SIGSEGV), si_code: 1 (SEGV_MAPERR), si_addr: 0x0000000000000008


This happened in parallel for 2 different JVMs (we are running tests in parallel with multiple JVMs). We should look into this, too! Tell me how I can help (as always, it is hard to reproduce). So this must be some change between b78 and b82 (b78 is last known working config). Maybe bells are ringing for you.

Uwe

-----
Uwe Schindler
uschindler at apache.org 
ASF Member, Apache Lucene PMC / Committer
Bremen, Germany
http://lucene.apache.org/


> -----Original Message-----
> From: Roland Westrelin [mailto:roland.westrelin at oracle.com]
> Sent: Monday, October 05, 2015 10:17 AM
> To: Uwe Schindler
> Cc: hotspot-compiler-dev at openjdk.java.net
> Subject: Re: RFR(S): 8134468: Lucene test failures with 32 bit JDK 9b78, Server
> compiler
> 
> Hi Uwe,
> 
> > is this already in build 82? I did not find it in changes log, but I have the
> feeling it should be :-)
> 
> It’s in b83.
> 
> Roland.=