Mercurial > jdk8-mips64-public > hotspot / annotate
test/gc/g1/TestHumongousCodeCacheRoots.java@dbb05f6d93c4 (annotated)
test/gc/g1/TestHumongousCodeCacheRoots.java
Mon, 28 Jul 2014 15:06:38 -0700
- author
- fzhinkin
- date
- Mon, 28 Jul 2014 15:06:38 -0700
- changeset 6997
- dbb05f6d93c4
- parent 0
- f90c822e73f8
- permissions
- -rw-r--r--
8051344: JVM crashed in Compile::start() during method parsing w/ UseRTMDeopt turned on
Summary: call rtm_deopt() only if there were no compilation bailouts before.
Reviewed-by: kvn
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | */ |
| aoqi@0 | 23 | |
| aoqi@0 | 24 | /* |
| aoqi@0 | 25 | * @test |
| aoqi@0 | 26 | * @key regression |
| aoqi@0 | 27 | * @key gc |
| aoqi@0 | 28 | * @bug 8027756 |
| aoqi@0 | 29 | * @library /testlibrary /testlibrary/whitebox |
| aoqi@0 | 30 | * @build TestHumongousCodeCacheRoots |
| aoqi@0 | 31 | * @run main ClassFileInstaller sun.hotspot.WhiteBox |
| aoqi@0 | 32 | * @summary Humongous objects may have references from the code cache |
| aoqi@0 | 33 | * @run main TestHumongousCodeCacheRoots |
| aoqi@0 | 34 | */ |
| aoqi@0 | 35 | |
| aoqi@0 | 36 | import com.oracle.java.testlibrary.*; |
| aoqi@0 | 37 | import sun.hotspot.WhiteBox; |
| aoqi@0 | 38 | |
| aoqi@0 | 39 | import java.util.ArrayList; |
| aoqi@0 | 40 | import java.util.Arrays; |
| aoqi@0 | 41 | |
| aoqi@0 | 42 | class TestHumongousCodeCacheRootsHelper { |
| aoqi@0 | 43 | |
| aoqi@0 | 44 | static final int n = 1000000; |
| aoqi@0 | 45 | static final int[] AA = new int[n]; |
| aoqi@0 | 46 | static final int[] BB = new int[n]; |
| aoqi@0 | 47 | |
| aoqi@0 | 48 | public static void main(String args[]) throws Exception { |
| aoqi@0 | 49 | // do some work so that the compiler compiles this method, inlining the |
| aoqi@0 | 50 | // reference to the integer array (which is a humonguous object) into |
| aoqi@0 | 51 | // the code cache. |
| aoqi@0 | 52 | for(int i = 0; i < n; i++) { |
| aoqi@0 | 53 | AA[i] = 0; |
| aoqi@0 | 54 | BB[i] = 0; |
| aoqi@0 | 55 | } |
| aoqi@0 | 56 | // trigger a GC that checks that the verification code allows humongous |
| aoqi@0 | 57 | // objects with code cache roots; objects should be all live here. |
| aoqi@0 | 58 | System.gc(); |
| aoqi@0 | 59 | |
| aoqi@0 | 60 | // deoptimize everyhing: this should make all compiled code zombies. |
| aoqi@0 | 61 | WhiteBox wb = WhiteBox.getWhiteBox(); |
| aoqi@0 | 62 | wb.deoptimizeAll(); |
| aoqi@0 | 63 | |
| aoqi@0 | 64 | // trigger a GC that checks that the verification code allows humongous |
| aoqi@0 | 65 | // objects with code cache roots; objects should be all live here. |
| aoqi@0 | 66 | System.gc(); |
| aoqi@0 | 67 | |
| aoqi@0 | 68 | // wait a little for the code cache sweeper to try to clean up zombie nmethods |
| aoqi@0 | 69 | // and unregister the code roots. |
| aoqi@0 | 70 | try { Thread.sleep(5000); } catch (InterruptedException ex) { } |
| aoqi@0 | 71 | |
| aoqi@0 | 72 | // do some work on the arrays to make sure that they need to be live after the GCs |
| aoqi@0 | 73 | for(int i = 0; i < n; i++) { |
| aoqi@0 | 74 | AA[i] = 1; |
| aoqi@0 | 75 | BB[i] = 10; |
| aoqi@0 | 76 | } |
| aoqi@0 | 77 | |
| aoqi@0 | 78 | System.out.println(); |
| aoqi@0 | 79 | } |
| aoqi@0 | 80 | } |
| aoqi@0 | 81 | |
| aoqi@0 | 82 | public class TestHumongousCodeCacheRoots { |
| aoqi@0 | 83 | |
| aoqi@0 | 84 | /** |
| aoqi@0 | 85 | * Executes a class in a new VM process with the given parameters. |
| aoqi@0 | 86 | * @param vmargs Arguments to the VM to run |
| aoqi@0 | 87 | * @param classname Name of the class to run |
| aoqi@0 | 88 | * @param arguments Arguments to the class |
| aoqi@0 | 89 | * @param useTestDotJavaDotOpts Use test.java.opts as part of the VM argument string |
| aoqi@0 | 90 | * @return The OutputAnalyzer with the results for the invocation. |
| aoqi@0 | 91 | */ |
| aoqi@0 | 92 | public static OutputAnalyzer runWhiteBoxTest(String[] vmargs, String classname, String[] arguments, boolean useTestDotJavaDotOpts) throws Exception { |
| aoqi@0 | 93 | ArrayList<String> finalargs = new ArrayList<String>(); |
| aoqi@0 | 94 | |
| aoqi@0 | 95 | String[] whiteboxOpts = new String[] { |
| aoqi@0 | 96 | "-Xbootclasspath/a:.", |
| aoqi@0 | 97 | "-XX:+UnlockDiagnosticVMOptions", "-XX:+WhiteBoxAPI", |
| aoqi@0 | 98 | "-cp", System.getProperty("java.class.path"), |
| aoqi@0 | 99 | }; |
| aoqi@0 | 100 | |
| aoqi@0 | 101 | if (useTestDotJavaDotOpts) { |
| aoqi@0 | 102 | // System.getProperty("test.java.opts") is '' if no options is set, |
| aoqi@0 | 103 | // we need to skip such a result |
| aoqi@0 | 104 | String[] externalVMOpts = new String[0]; |
| aoqi@0 | 105 | if (System.getProperty("test.java.opts") != null && System.getProperty("test.java.opts").length() != 0) { |
| aoqi@0 | 106 | externalVMOpts = System.getProperty("test.java.opts").split(" "); |
| aoqi@0 | 107 | } |
| aoqi@0 | 108 | finalargs.addAll(Arrays.asList(externalVMOpts)); |
| aoqi@0 | 109 | } |
| aoqi@0 | 110 | |
| aoqi@0 | 111 | finalargs.addAll(Arrays.asList(vmargs)); |
| aoqi@0 | 112 | finalargs.addAll(Arrays.asList(whiteboxOpts)); |
| aoqi@0 | 113 | finalargs.add(classname); |
| aoqi@0 | 114 | finalargs.addAll(Arrays.asList(arguments)); |
| aoqi@0 | 115 | |
| aoqi@0 | 116 | ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(finalargs.toArray(new String[0])); |
| aoqi@0 | 117 | OutputAnalyzer output = new OutputAnalyzer(pb.start()); |
| aoqi@0 | 118 | output.shouldHaveExitValue(0); |
| aoqi@0 | 119 | |
| aoqi@0 | 120 | return output; |
| aoqi@0 | 121 | } |
| aoqi@0 | 122 | |
| aoqi@0 | 123 | public static void runTest(String compiler, String[] other) throws Exception { |
| aoqi@0 | 124 | ArrayList<String> joined = new ArrayList<String>(); |
| aoqi@0 | 125 | joined.add(compiler); |
| aoqi@0 | 126 | joined.addAll(Arrays.asList(other)); |
| aoqi@0 | 127 | runWhiteBoxTest(joined.toArray(new String[0]), TestHumongousCodeCacheRootsHelper.class.getName(), |
| aoqi@0 | 128 | new String[] {}, false); |
| aoqi@0 | 129 | } |
| aoqi@0 | 130 | |
| aoqi@0 | 131 | public static void main(String[] args) throws Exception { |
| aoqi@0 | 132 | final String[] baseArguments = new String[] { |
| aoqi@0 | 133 | "-XX:+UseG1GC", "-XX:G1HeapRegionSize=1M", "-Xmx100M", // make sure we get a humongous region |
| aoqi@0 | 134 | "-XX:+UnlockDiagnosticVMOptions", |
| aoqi@0 | 135 | "-XX:InitiatingHeapOccupancyPercent=1", // strong code root marking |
| aoqi@0 | 136 | "-XX:+G1VerifyHeapRegionCodeRoots", "-XX:+VerifyAfterGC", // make sure that verification is run |
| aoqi@0 | 137 | "-XX:NmethodSweepFraction=1", "-XX:NmethodSweepCheckInterval=1", // make the code cache sweep more predictable |
| aoqi@0 | 138 | }; |
| aoqi@0 | 139 | runTest("-client", baseArguments); |
| aoqi@0 | 140 | runTest("-server", baseArguments); |
| aoqi@0 | 141 | } |
| aoqi@0 | 142 | } |
| aoqi@0 | 143 |
