Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/ui/MonitorCacheDumpPanel.java @ 6972:bd7a7ce2e264
6830717: replay of compilations would help with debugging
Summary: When java process crashed in compiler thread, repeat the compilation process will help finding root cause. This is done with using SA dump application class data and replay data from core dump, then use debug version of jvm to recompile the problematic java method.
Reviewed-by: kvn, twisti, sspitsyn
Contributed-by: yumin.qi@oracle.com
| author | minqi |
|---|---|
| date | Mon, 12 Nov 2012 14:03:53 -0800 |
| parents | c18cbe5936b8 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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6941466: Oracle rebranding changes for Hotspot repositories
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2 * Copyright (c) 2002, 2007, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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parents:
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diff
changeset
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20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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parents:
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.ui; | |
| 26 | |
| 27 import java.awt.*; | |
| 28 import java.io.*; | |
| 29 import javax.swing.*; | |
| 30 import java.util.*; | |
| 31 | |
| 32 import sun.jvm.hotspot.memory.*; | |
| 33 import sun.jvm.hotspot.runtime.*; | |
| 34 import sun.jvm.hotspot.debugger.*; | |
| 35 import sun.jvm.hotspot.oops.*; | |
| 36 | |
| 37 /** Provides information about monitor cache. */ | |
| 38 | |
| 39 public class MonitorCacheDumpPanel extends JPanel { | |
| 40 public MonitorCacheDumpPanel() { | |
| 41 super(); | |
| 42 | |
| 43 setLayout(new BorderLayout()); | |
| 44 | |
| 45 // Simple at first | |
| 46 JScrollPane scroller = new JScrollPane(); | |
| 47 JTextArea textArea = new JTextArea(); | |
| 48 textArea = new JTextArea(); | |
| 49 textArea.setEditable(false); | |
| 50 textArea.setLineWrap(true); | |
| 51 textArea.setWrapStyleWord(true); | |
| 52 scroller.getViewport().add(textArea); | |
| 53 add(scroller, BorderLayout.CENTER); | |
| 54 | |
| 55 ByteArrayOutputStream bos = new ByteArrayOutputStream(); | |
| 56 PrintStream tty = new PrintStream(bos); | |
| 57 tty.println("Monitor Cache Dump (not including JVMTI raw monitors):"); | |
| 58 tty.println(); | |
| 59 dumpOn(tty); | |
| 60 | |
| 61 textArea.setText(bos.toString()); | |
| 62 } | |
| 63 | |
| 64 private static void dumpMonitor(PrintStream tty, ObjectMonitor mon, boolean raw) { | |
| 65 tty.print("ObjectMonitor@" + mon.getAddress()); | |
| 66 if (raw) tty.print("(Raw Monitor)"); | |
| 67 tty.println(); | |
| 68 tty.println(" _header: 0x" + Long.toHexString(mon.header().value())); | |
| 69 OopHandle obj = mon.object(); | |
| 70 Oop oop = heap.newOop(obj); | |
| 71 tty.println(" _object: " + obj + ", a " + oop.getKlass().getName().asString()); | |
| 72 Address owner = mon.owner(); | |
| 73 tty.println(" _owner: " + owner); | |
| 74 if (!raw && owner != null) { | |
| 75 JavaThread thread = threads.owningThreadFromMonitor(mon); | |
| 76 if (thread != null) { | |
| 77 tty.println(" owning thread: " + thread.getThreadName()); | |
| 78 if (!thread.getAddress().equals(owner)) { | |
| 79 if (!thread.isLockOwned(owner)) { | |
| 80 tty.println(" WARNING! _owner doesn't fall in " + thread + | |
| 81 "'s stack space"); | |
| 82 } | |
| 83 } | |
| 84 } | |
| 85 } | |
| 86 tty.println(" _count: " + mon.count()); | |
| 87 tty.println(" _waiters: " + mon.waiters()); | |
| 88 tty.println(" _recursions: " + mon.recursions()); | |
| 89 } | |
| 90 | |
| 91 private void dumpOn(PrintStream tty) { | |
| 92 Iterator i = ObjectSynchronizer.objectMonitorIterator(); | |
| 93 if (i == null) { | |
| 94 tty.println("This version of HotSpot VM doesn't support monitor cache dump."); | |
| 95 tty.println("You need 1.4.0_04, 1.4.1_01 or later versions"); | |
| 96 return; | |
| 97 } | |
| 98 ObjectMonitor mon; | |
| 99 while (i.hasNext()) { | |
| 100 mon = (ObjectMonitor)i.next(); | |
| 101 if (mon.count() != 0 || mon.waiters() != 0 || mon.owner() != null) { | |
| 102 OopHandle object = mon.object(); | |
| 103 if (object == null) { | |
| 104 dumpMonitor(tty, mon, true); | |
| 105 } else { | |
| 106 dumpMonitor(tty, mon, false); | |
| 107 } | |
| 108 } | |
| 109 } | |
| 110 } | |
| 111 | |
| 112 private static Threads threads = VM.getVM().getThreads(); | |
| 113 private static ObjectHeap heap = VM.getVM().getObjectHeap(); | |
| 114 } |