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From "Pavel Pervov (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-5612) [drlvm][gc] dacapo fails intermittently on 32-bit systems
Date Mon, 17 Mar 2008 10:19:25 GMT
[drlvm][gc] dacapo fails intermittently on 32-bit systems
---------------------------------------------------------

                 Key: HARMONY-5612
                 URL: https://issues.apache.org/jira/browse/HARMONY-5612
             Project: Harmony
          Issue Type: Bug
          Components: DRLVM
         Environment: x86
            Reporter: Pavel Pervov


According to snapshot testing results dacapo intermittently fails on 32-bit architecture (both
Windows and Linux).

run:
     [exec] Apache Harmony Launcher : (c) Copyright 1991, 2008 The Apache Software Foundation
or its licensors, as applicable.
     [exec] java version "1.5.0" 
     [exec] pre-alpha : not complete or compatible
     [exec] svn = r636792, (Mar 14 2008), Windows/ia32/msvc 1310, release build
     [exec] http://harmony.apache.org
     [exec] ===== DaCapo antlr starting =====
     [exec] Running antlr on grammar antlr/java.g
     [exec] ANTLR Parser Generator   Version 2.7.2   1989-2003 jGuru.com
     [exec] ===== DaCapo antlr PASSED in 1266 msec =====
     [exec] ===== DaCapo bloat starting =====
     [exec] Optimized with: EDU.purdue.cs.bloat.optimize.Main -only EDU.purdue.cs.bloat.trans
-pre -dce -diva -prop -stack-alloc -peel-loops all -f EDU.purdue.cs.bloat.trans.ValueNumbering
.\scratch\optimizedcode
     [exec] ===== DaCapo bloat PASSED in 6359 msec =====
     [exec] ===== DaCapo chart starting =====
     [exec] Done plotting: .\scratch/compress-tgt-ptr-prf-time.pdf
     [exec] Done plotting: .\scratch/compress-src-ptr-prf-time.pdf
     [exec] Done plotting: .\scratch/compress-dst-ptr-prf-time.pdf
     [exec] Done plotting: .\scratch/compress-tgt-mut-prf-time.pdf
     [exec] Done plotting: .\scratch/compress-src-mut-prf-time.pdf
     [exec] Done plotting: .\scratch/compress-dst-mut-prf-time.pdf
     [exec] Done plotting: .\scratch/compress-heap-comp-b.pdf
     [exec] Done plotting: .\scratch/compress-heap-comp-a.pdf
     [exec] Done plotting: .\scratch/compress-tgt-ptr-inf-time.pdf
     [exec] Done plotting: .\scratch/compress-src-ptr-inf-time.pdf
     [exec] Done plotting: .\scratch/compress-dst-ptr-inf-time.pdf
     [exec] Done plotting: .\scratch/compress-tgt-mut-inf-time.pdf
     [exec] Done plotting: .\scratch/compress-src-mut-inf-time.pdf
     [exec] Done plotting: .\scratch/compress-dst-mut-inf-time.pdf
     [exec] ===== DaCapo chart PASSED in 6656 msec =====
     [exec] Out of Memory!
     [exec] 
     [exec] 
     [exec] This application has requested the Runtime to terminate it in an unusual way.
     [exec] Please contact the application's support team for more information.
     [exec] Result: 3
     [copy] Copying 1 file to C:\cc\cc-suites\build\results\dacapo
     [echo] Number of tests: (...........)
     [echo] N of runned tests(...)

The execution FAILED with the following exception:
The following error occurred while executing this line:
C:\cc\cc-suites\adaptors\dacapo\adaptor.xml:112: Not all workloads completed successfully

Noticing "Out of Memory!" I tacked the message down to GC_GEN code.

I was able to reproduce the failure on Linux automated snapshot testing host running dacapo
by hand.

The steps to reproduce are:
-> login to snapshot testing host
-> export MY_USER_NAME=<your_name>
-> mkdir /export/users/$MY_USER_NAME
-> cd /export/users/$MY_USER_NAME
-> export http_proxy=<proxy_host>:<proxy_port>
-> wget http://people.apache.org/builds/harmony/snapshots/r637385/apache-harmony-jdk-r637385-linux-x86-32-snapshot.tar.gz
-> tar xf http://people.apache.org/builds/harmony/snapshots/r637385/apache-harmony-jdk-r637385-linux-x86-32-snapshot.tar.gz
-> export JAVA_HOME=/export/users/$MY_USER_NAME/harmony-jdk-r637385
-> export PATH=$JAVA_HOME/bin:$PATH
-> mkdir dacapo
-> cd dacapo
-> wget http://switch.dl.sourceforge.net/sourceforge/dacapobench/dacapo-2006-10-MR2.jar
-> jar xf dacapo-2006-10-MR2.jar xalan.jar
-> jar xf dacapo-2006-10-MR2.jar "antlr/*"
-> mkdir test
-> cd test
-> export DACAPO_DIR=/export/users/$MY_USER_NAME/dacapo
-> java -Xbootclasspath/p:$DACAPO_DIR/xalan.jar:$DACAPO_DIR -jar $DACAPO_DIR/dacapo-2006-10-MR2.jar
-s small antlr bloat chart eclipse fop hsqldb lusearch luindex pmd xalan jython

The run fails after dacapo.chart (major collection fails). For me it fails 2 out of 3 runs.

I tried to statically analize the code but didn't quite succeed. What I guessed is that some
of GC collector threads fail to set their Collector::result field to TRUE (or set it to FALSE
for some reason).


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