ADDITIONAL SYSTEM INFORMATION :
# OS:Ubuntu 18.04
# JRE version: OpenJDK Runtime Environment (11.0.20) (fastdebug build 11.0.20-internal+0-adhoc.jdk11u)
# Java VM: OpenJDK 64-Bit Server VM (fastdebug 11.0.20-internal+0-adhoc.jdk11u, compiled mode, tiered, compressed oops, g1 gc, linux-amd64)
A DESCRIPTION OF THE PROBLEM :
I ran a modified regression test, and I found that it crashed on JDK 11.0.20 with the -Xcomp option.
I searched for related bugs on the JBS and I found it very similar to JDK-8307522. However, I did not reproduce JDK-8307522 on JDK 11.0.20. so they may not be the same bug?
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/home/repository/jdk11u/src/hotspot/share/opto/cfgnode.cpp:621), pid=39857, tid=48924
# assert(n->req() == 2 && n->in(1) != __null) failed: Only one data input expected
#
# JRE version: OpenJDK Runtime Environment (11.0.20) (fastdebug build 11.0.20-internal+0-adhoc.jdk11u)
# Java VM: OpenJDK 64-Bit Server VM (fastdebug 11.0.20-internal+0-adhoc.jdk11u, compiled mode, tiered, compressed oops, g1 gc, linux-amd64)
# No core dump will be written. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# If you would like to submit a bug report, please visit:
# https://bugreport.java.com/bugreport/crash.jsp
#
--------------- S U M M A R Y ------------
Command Line: -Xcomp -ea compiler.arraycopy.TestIllegalArrayCopyBeforeInfiniteLoop
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
java -Xcomp compiler.arraycopy.TestIllegalArrayCopyBeforeInfiniteLoop
ACTUAL -
# after -XX: or in .hotspotrc: SuppressErrorAt=/cfgnode.cpp:621
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/home/repository/jdk11u/src/hotspot/share/opto/cfgnode.cpp:621), pid=39857, tid=48924
# assert(n->req() == 2 && n->in(1) != __null) failed: Only one data input expected
#
# JRE version: OpenJDK Runtime Environment (11.0.20) (fastdebug build 11.0.20-internal+0-adhoc.jdk11u)
# Java VM: OpenJDK 64-Bit Server VM (fastdebug 11.0.20-internal+0-adhoc.jdk11u, compiled mode, tiered, compressed oops, g1 gc, linux-amd64)
# No core dump will be written. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /home/repository/bugs/TestIllegalArrayCopyBeforeInfiniteLoop_07_14_01_31_34/hs_err_pid39857.log
#
# Compiler replay data is saved as:
# /home/repository/bugs/TestIllegalArrayCopyBeforeInfiniteLoop_07_14_01_31_34/replay_pid39857.log
#
# If you would like to submit a bug report, please visit:
# https://bugreport.java.com/bugreport/crash.jsp
#
Current thread is 48924
Dumping core ...
---------- BEGIN SOURCE ----------
/*
* Copyright (C) 2021 THL A29 Limited, a Tencent company. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @bug 8272131
* @requires vm.compiler2.enabled
* @summary ArrayCopy with negative index before infinite loop
* @run main/othervm -Xbatch -XX:-TieredCompilation
* -XX:CompileCommand=compileonly,"*TestIllegalArrayCopyBeforeInfiniteLoop::foo"
* compiler.arraycopy.TestIllegalArrayCopyBeforeInfiniteLoop
*/
package compiler.arraycopy;
import java.util.Arrays;
public class TestIllegalArrayCopyBeforeInfiniteLoop {
private static char[] src = new char[10];
private static int count = 0;
private static final int iter = 10_000;
public static void main(String[] args) throws Exception {
for (int i = 0; i < iter; ++i) {
synchronized (TestIllegalArrayCopyBeforeInfiniteLoop.class) {
try {
Class <?> Class0 = Class.forName("compiler.arraycopy.TestIllegalArrayCopyBeforeInfiniteLoop");
Class0.getDeclaredMethod("foo").invoke(null);
}catch (Exception eeeeeeee){throw new RuntimeException(eeeeeeee);}
}
}
if (count != iter) {
throw new RuntimeException("test failed");
}
}
static void foo() {
try {
Arrays.copyOfRange(src, -1, 128);
do {
} while (true);
} catch (ArrayIndexOutOfBoundsException ex) {
count++;
}
}
}
---------- END SOURCE ----------
FREQUENCY : always