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test/hotspot/jtreg/gc/shenandoah/TestEvilSyncBug.java

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  1 /*
  2  * Copyright (c) 2016, 2020, Red Hat, Inc. All rights reserved.

  3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  4  *
  5  * This code is free software; you can redistribute it and/or modify it
  6  * under the terms of the GNU General Public License version 2 only, as
  7  * published by the Free Software Foundation.
  8  *
  9  * This code is distributed in the hope that it will be useful, but WITHOUT
 10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 12  * version 2 for more details (a copy is included in the LICENSE file that
 13  * accompanied this code).
 14  *
 15  * You should have received a copy of the GNU General Public License version
 16  * 2 along with this work; if not, write to the Free Software Foundation,
 17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 18  *
 19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 20  * or visit www.oracle.com if you need additional information or have any
 21  * questions.
 22  *
 23  */
 24 
 25 /*
 26  * @test
 27  * @summary Tests for crash/assert when attaching init thread during shutdown
 28  * @requires vm.gc.Shenandoah
 29  * @library /test/lib
 30  * @modules java.base/jdk.internal.misc
 31  *          java.management
 32  * @run driver/timeout=480 TestEvilSyncBug










 33  */
 34 
 35 import java.util.*;
 36 import java.util.concurrent.*;
 37 import java.util.concurrent.locks.*;
 38 
 39 import jdk.test.lib.process.ProcessTools;
 40 import jdk.test.lib.process.OutputAnalyzer;
 41 
 42 public class TestEvilSyncBug {
 43 
 44     private static final int NUM_RUNS = 100;
 45 
 46     static Thread[] hooks = new MyHook[10000];
 47 
 48     public static void main(String[] args) throws Exception {
 49         if (args.length > 0) {
 50             test();
 51         } else {

 52             // Use 1/4 of available processors to avoid over-saturation.
 53             int numJobs = Math.max(1, Runtime.getRuntime().availableProcessors() / 4);
 54             ExecutorService pool = Executors.newFixedThreadPool(numJobs);
 55             Future<?>[] fs = new Future<?>[NUM_RUNS];
 56 
 57             for (int c = 0; c < NUM_RUNS; c++) {
 58                 Callable<Void> task = () -> {
 59                     ProcessBuilder pb = ProcessTools.createLimitedTestJavaProcessBuilder("-Xms128m",
 60                             "-Xmx128m",
 61                             "-XX:+UnlockExperimentalVMOptions",
 62                             "-XX:+UnlockDiagnosticVMOptions",
 63                             "-XX:+UseShenandoahGC",
 64                             "-XX:ShenandoahGCHeuristics=aggressive",
 65                             "TestEvilSyncBug", "test");
 66                     OutputAnalyzer output = new OutputAnalyzer(pb.start());
 67                     output.shouldHaveExitValue(0);
 68                     return null;
 69                 };
 70                 fs[c] = pool.submit(task);
 71             }
 72 
 73             for (Future<?> f : fs) {
 74                 f.get();
 75             }
 76 
 77             pool.shutdown();
 78             pool.awaitTermination(1, TimeUnit.HOURS);
 79         }
 80     }
 81 
 82     private static void test() throws Exception {
 83 
 84         for (int t = 0; t < hooks.length; t++) {

  1 /*
  2  * Copyright (c) 2016, 2020, Red Hat, Inc. All rights reserved.
  3  * Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
  4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  5  *
  6  * This code is free software; you can redistribute it and/or modify it
  7  * under the terms of the GNU General Public License version 2 only, as
  8  * published by the Free Software Foundation.
  9  *
 10  * This code is distributed in the hope that it will be useful, but WITHOUT
 11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 13  * version 2 for more details (a copy is included in the LICENSE file that
 14  * accompanied this code).
 15  *
 16  * You should have received a copy of the GNU General Public License version
 17  * 2 along with this work; if not, write to the Free Software Foundation,
 18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 19  *
 20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 21  * or visit www.oracle.com if you need additional information or have any
 22  * questions.
 23  *
 24  */
 25 
 26 /*
 27  * @test id=default
 28  * @summary Tests for crash/assert when attaching init thread during shutdown
 29  * @requires vm.gc.Shenandoah
 30  * @library /test/lib
 31  * @modules java.base/jdk.internal.misc
 32  *          java.management
 33  * @run driver/timeout=480 TestEvilSyncBug -XX:ShenandoahGCHeuristics=aggressive
 34  */
 35 
 36 /*
 37  * @test id=generational
 38  * @summary Tests for crash/assert when attaching init thread during shutdown
 39  * @requires vm.gc.Shenandoah
 40  * @library /test/lib
 41  * @modules java.base/jdk.internal.misc
 42  *          java.management
 43  * @run driver/timeout=480 TestEvilSyncBug -XX:ShenandoahGCMode=generational
 44  */
 45 
 46 import java.util.*;
 47 import java.util.concurrent.*;
 48 import java.util.concurrent.locks.*;
 49 
 50 import jdk.test.lib.process.ProcessTools;
 51 import jdk.test.lib.process.OutputAnalyzer;
 52 
 53 public class TestEvilSyncBug {
 54 
 55     private static final int NUM_RUNS = 100;
 56 
 57     static Thread[] hooks = new MyHook[10000];
 58 
 59     public static void main(String[] args) throws Exception {
 60         if ("test".equals(args[0])) {
 61             test();
 62         } else {
 63             String options = args[0];
 64             // Use 1/4 of available processors to avoid over-saturation.
 65             int numJobs = Math.max(1, Runtime.getRuntime().availableProcessors() / 4);
 66             ExecutorService pool = Executors.newFixedThreadPool(numJobs);
 67             Future<?>[] fs = new Future<?>[NUM_RUNS];
 68 
 69             for (int c = 0; c < NUM_RUNS; c++) {
 70                 Callable<Void> task = () -> {
 71                     ProcessBuilder pb = ProcessTools.createLimitedTestJavaProcessBuilder("-Xms128m",
 72                             "-Xmx128m",
 73                             "-XX:+UnlockExperimentalVMOptions",
 74                             "-XX:+UnlockDiagnosticVMOptions",
 75                             "-XX:+UseShenandoahGC",
 76                             options,
 77                             "TestEvilSyncBug", "test");
 78                     OutputAnalyzer output = new OutputAnalyzer(pb.start());
 79                     output.shouldHaveExitValue(0);
 80                     return null;
 81                 };
 82                 fs[c] = pool.submit(task);
 83             }
 84 
 85             for (Future<?> f : fs) {
 86                 f.get();
 87             }
 88 
 89             pool.shutdown();
 90             pool.awaitTermination(1, TimeUnit.HOURS);
 91         }
 92     }
 93 
 94     private static void test() throws Exception {
 95 
 96         for (int t = 0; t < hooks.length; t++) {
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