1 /* 2 * Copyright (c) 2019, SAP SE. 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 import jdk.test.lib.*; 25 import jdk.test.lib.process.*; 26 27 /* 28 * @test TestAbortVMOnSafepointTimeout 29 * @summary Check if VM can kill thread which doesn't reach safepoint. 30 * @bug 8219584 8227528 31 * @requires vm.compiler2.enabled 32 * @library /test/lib 33 * @modules java.base/jdk.internal.misc 34 * java.management 35 * @run driver TestAbortVMOnSafepointTimeout 36 */ 37 38 public class TestAbortVMOnSafepointTimeout { 39 40 public static void main(String[] args) throws Exception { 41 if (args.length > 0) { 42 int result = test_loop(3); 43 System.out.println("This message would occur after some time with result " + result); 44 return; 45 } 46 47 testWith(500, 500); 48 } 49 50 static int test_loop(int x) { 51 int sum = 0; 52 if (x != 0) { 53 // Long running loop without safepoint. 54 for (int y = 1; y < Integer.MAX_VALUE; ++y) { 55 if (y % x == 0) ++sum; 56 } 57 } 58 return sum; 59 } 60 61 public static void testWith(int sfpt_interval, int timeout_delay) throws Exception { 62 // -XX:-UseCountedLoopSafepoints - is used to prevent the loop 63 // in test_loop() to poll for safepoints. 64 // -XX:LoopStripMiningIter=0 and -XX:LoopUnrollLimit=0 - are 65 // used to prevent optimizations over the loop in test_loop() 66 // since we actually want it to provoke a safepoint timeout. 67 // -XX:-UseBiasedLocking - is used to prevent biased locking 68 // handshakes from changing the timing of this test. 69 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 70 "-XX:+UnlockDiagnosticVMOptions", 71 "-XX:-UseBiasedLocking", 72 "-XX:+SafepointTimeout", 73 "-XX:+SafepointALot", 74 "-XX:+AbortVMOnSafepointTimeout", 75 "-XX:SafepointTimeoutDelay=" + timeout_delay, 76 "-XX:GuaranteedSafepointInterval=" + sfpt_interval, 77 "-XX:-TieredCompilation", 78 "-XX:-UseCountedLoopSafepoints", 79 "-XX:LoopStripMiningIter=0", 80 "-XX:LoopUnrollLimit=0", 81 "-XX:CompileCommand=compileonly,TestAbortVMOnSafepointTimeout::test_loop", 82 "-Xcomp", 83 "-XX:-CreateCoredumpOnCrash", 84 "-Xms64m", 85 "TestAbortVMOnSafepointTimeout", 86 "runTestLoop" 87 ); 88 89 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 90 if (Platform.isWindows()) { 91 output.shouldMatch("Safepoint sync time longer than"); 92 } else { 93 output.shouldMatch("SIGILL"); 94 if (Platform.isLinux()) { 95 output.shouldMatch("(sent by kill)"); 96 } 97 output.shouldMatch("TestAbortVMOnSafepointTimeout.test_loop"); 98 } 99 output.shouldNotHaveExitValue(0); 100 } 101 }