Mercurial > hg > graal-compiler
view agent/test/jdi/sasanity.sh @ 364:919e7959392a
6742641: G1: NullPointerException during GCOld
Summary: An update buffer is not processed correctly, which causes roots into the collection set not to be scanned and, hence, for the heap to be corrupted. The cause is that an object is accessed after it has been explicitly deleted, which causes a race.
Reviewed-by: jcoomes, ysr
author | tonyp |
---|---|
date | Mon, 22 Sep 2008 09:56:49 -0400 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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#!/bin/ksh # # Copyright 2003 Sun Microsystems, Inc. All Rights Reserved. # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. # # This code is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License version 2 only, as # published by the Free Software Foundation. # # This code is distributed in the hope that it will be useful, but WITHOUT # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License # version 2 for more details (a copy is included in the LICENSE file that # accompanied this code). # # You should have received a copy of the GNU General Public License version # 2 along with this work; if not, write to the Free Software Foundation, # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. # # Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, # CA 95054 USA or visit www.sun.com if you need additional information or # have any questions. # # # This script is used to run sanity check on vmStructs. # Each SA class is checked against a given VM. "PASSED" is # printed if vmStructs are consistent. Else, "FAILED" is # printed and an exception stack trace follows. usage() { echo "usage: ./sasanity.sh <jdk>" echo "<jdk> is the 1.5 j2se directory against which you want to run sanity check" exit 1 } if [ "$1" == "" ]; then usage fi if [ "$1" == "-help" ]; then usage fi jdk=$1 OS=`uname` if [ "$OS" != "Linux" ]; then OPTIONS="-Dsun.jvm.hotspot.debugger.useProcDebugger" fi javacp=$jdk/lib/sa-jdi.jar:./workdir mkdir -p workdir if [ SASanityChecker.java -nt ./workdir/SASanityChecker.class ] ; then $jdk/bin/javac -d ./workdir -classpath $javacp SASanityChecker.java if [ $? != 0 ] ; then exit 1 fi fi if [ sagtarg.java -nt ./workdir/sagtarg.class ]; then $jdk/bin/javac -g -classpath -d $workdir sagtarg.java if [ $? != 0 ] ; then exit 1 fi fi tmp=/tmp/sagsetup rm -f $tmp $jdk/bin/java sagtarg > $tmp & pid=$! while [ ! -s $tmp ] ; do # Kludge alert! sleep 2 done $jdk/bin/java -showversion ${OPTIONS} -classpath $javacp SASanityChecker $pid kill -9 $pid