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8329757: Crash with fatal error: DEBUG MESSAGE: Fast Unlock lock on s…
…tack Reviewed-by: pchilanomate, kvn
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72
test/hotspot/jtreg/compiler/escapeAnalysis/Test8329757.java
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/* | ||
* Copyright (c) 2024, Oracle and/or its affiliates. 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. | ||
*/ | ||
|
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/* | ||
* @test | ||
* @bug 8329757 | ||
* @summary Deoptimization with nested eliminated and not eliminated locks | ||
* caused reordered lock stacks. This can be handled by the interpreter | ||
* but when a frame is migrated back to compiled code via OSR the C2 | ||
* assumption about balanced monitorenter-monitorexit is broken. | ||
* | ||
* @requires vm.compMode != "Xint" | ||
* | ||
* @run main/othervm compiler.escapeAnalysis.Test8329757 | ||
*/ | ||
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package compiler.escapeAnalysis; | ||
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public class Test8329757 { | ||
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int a = 400; | ||
Double ddd; | ||
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void q() { | ||
int e; | ||
synchronized (new Double(1.1f)) { | ||
int[] f = new int[a]; | ||
synchronized (Test8329757.class) { | ||
for (int d = 4; d < 127; d++) { | ||
e = 13; | ||
do switch (d * 5) { | ||
case 0: | ||
case 42: | ||
case 29: | ||
e = d; | ||
default: | ||
f[1] = e; | ||
} while (--e > 0); | ||
} | ||
} | ||
} | ||
} | ||
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void n() { | ||
for (int j = 6; j < 274; ++j) q(); | ||
} | ||
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public static void main(String[] args) { | ||
Test8329757 r = new Test8329757(); | ||
for (int i = 0; i < 1000; i++) r.n(); | ||
} | ||
} |
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Review
Issues
e45fea5
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/backport lilliput-jdk21u
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@rkennke Could not automatically backport
e45fea5a
to openjdk/lilliput-jdk21u due to conflicts in the following files:Please fetch the appropriate branch/commit and manually resolve these conflicts by using the following commands in your personal fork of openjdk/lilliput-jdk21u. Note: these commands are just some suggestions and you can use other equivalent commands you know.
Once you have resolved the conflicts as explained above continue with creating a pull request towards the openjdk/lilliput-jdk21u with the title
Backport e45fea5a801ac09c3d572ac07d6179e80c422942
.Below you can find a suggestion for the pull request body:
e45fea5
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/backport lilliput-jdk21u
e45fea5
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@rkennke the backport was successfully created on the branch backport-rkennke-e45fea5a in my personal fork of openjdk/lilliput-jdk21u. To create a pull request with this backport targeting openjdk/lilliput-jdk21u:lilliput, just click the following link:
➡️ Create pull request
The title of the pull request is automatically filled in correctly and below you find a suggestion for the pull request body:
If you need to update the source branch of the pull then run the following commands in a local clone of your personal fork of openjdk/lilliput-jdk21u: