=?gb2312?B?tPC4tDogRXJyb3JzIHdoZW4gdXNlICJ1bml2ZXJzZSIgY29tbWFuZCBpbiBD?= =?gb2312?Q?LHSDB?=
=?gb2312?B?1Ma07w==?=
yunda.mly at taobao.com
Thu Jan 17 19:54:35 PST 2013
Thanks Dan!
Regards,
Yunda
·¢¼þÈË: Daniel D. Daugherty [mailto:daniel.daugherty at oracle.com]
·¢ËÍʱ¼ä: 2013Äê1ÔÂ18ÈÕ 10:46
ÊÕ¼þÈË: ÔÆ´ï; serviceability-dev at openjdk.java.net
Ö÷Ìâ: Re: Errors when use "universe" command in CLHSDB
Yunda,
The Serviceability Agent is maintained by the Serviceability team.
I'm adding that alias to this e-mail thread (and Bcc'ing the Runtime
alias.
Dan
On 1/17/13 7:42 PM, ÔÆ´ï wrote:
Hi all,
This is Yunda <yunda.mly at taobao.com><mailto:yunda.mly at taobao.com> from Alibaba Group(with OCA).
When I used CLHSDB( java -classpath .:$JAVA_HOME/lib/sa-jdi.jar sun.jvm.hotspot.CLHSDB) I found two errors below(the second error occurred after I made some fix). It seemed that some code about CMS in SA didn¡¯t change accordingly.
hsdb> universe
Heap Parameters:
Gen 0: eden [0x0000000609200000,0x00000006094aeb90,0x0000000611820000) space capacity = 140640256, 2.000007736049627 used
from [0x0000000611820000,0x0000000611820000,0x00000006128e0000) space capacity = 17563648, 0.0 used
to [0x00000006128e0000,0x00000006128e0000,0x00000006139a0000) space capacity = 17563648, 0.0 usedInvocations: 0
Gen 1: concurrent mark-sweep generation
Exception in thread "main" java.lang.ExceptionInInitializerError
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:395)
at sun.jvm.hotspot.runtime.VMObjectFactory.newObject(VMObjectFactory.java:58)
at sun.jvm.hotspot.memory.ConcurrentMarkSweepGeneration.cmsSpace(ConcurrentMarkSweepGeneration.java:55)
at sun.jvm.hotspot.memory.ConcurrentMarkSweepGeneration.printOn(ConcurrentMarkSweepGeneration.java:79)
at sun.jvm.hotspot.memory.GenCollectedHeap.printOn(GenCollectedHeap.java:139)
at sun.jvm.hotspot.CommandProcessor$48.doit(CommandProcessor.java:1605)
at sun.jvm.hotspot.CommandProcessor.executeCommand(CommandProcessor.java:1897)
at sun.jvm.hotspot.CommandProcessor.executeCommand(CommandProcessor.java:1867)
at sun.jvm.hotspot.CommandProcessor.run(CommandProcessor.java:1747)
at sun.jvm.hotspot.CLHSDB.run(CLHSDB.java:91)
at sun.jvm.hotspot.CLHSDB.main(CLHSDB.java:35)
Caused by: java.lang.RuntimeException: field "_dictionary" not found in type CompactibleFreeListSpace
at sun.jvm.hotspot.types.basic.BasicType.getField(BasicType.java:183)
at sun.jvm.hotspot.types.basic.BasicType.getField(BasicType.java:190)
at sun.jvm.hotspot.types.basic.BasicType.getField(BasicType.java:194)
at sun.jvm.hotspot.types.basic.BasicType.getAddressField(BasicType.java:282)
at sun.jvm.hotspot.memory.CompactibleFreeListSpace.initialize(CompactibleFreeListSpace.java:69)
at sun.jvm.hotspot.memory.CompactibleFreeListSpace.access$000(CompactibleFreeListSpace.java:35)
at sun.jvm.hotspot.memory.CompactibleFreeListSpace$1.update(CompactibleFreeListSpace.java:55)
at sun.jvm.hotspot.runtime.VM.registerVMInitializedObserver(VM.java:402)
at sun.jvm.hotspot.memory.CompactibleFreeListSpace.<clinit>(CompactibleFreeListSpace.java:53)
... 14 more
hsdb> universe
Heap Parameters:
Gen 0: eden [0x0000000609200000,0x00000006094aeb90,0x0000000611820000) space capacity = 140640256, 2.000007736049627 used
from [0x0000000611820000,0x0000000611820000,0x00000006128e0000) space capacity = 17563648, 0.0 used
to [0x00000006128e0000,0x00000006128e0000,0x00000006139a0000) space capacity = 17563648, 0.0 usedInvocations: 0
Gen 1: concurrent mark-sweep generation
free-list-space[ 0x000000064cb90000 , 0x0000000661ad0000 ) Exception in thread "main" java.lang.ExceptionInInitializerError
at sun.jvm.hotspot.memory.CompactibleFreeListSpace.free(CompactibleFreeListSpace.java:112)
at sun.jvm.hotspot.memory.CompactibleFreeListSpace.used(CompactibleFreeListSpace.java:95)
at sun.jvm.hotspot.memory.CompactibleFreeListSpace.printOn(CompactibleFreeListSpace.java:137)
at sun.jvm.hotspot.memory.ConcurrentMarkSweepGeneration.printOn(ConcurrentMarkSweepGeneration.java:79)
at sun.jvm.hotspot.memory.GenCollectedHeap.printOn(GenCollectedHeap.java:139)
at sun.jvm.hotspot.CommandProcessor$48.doit(CommandProcessor.java:1605)
at sun.jvm.hotspot.CommandProcessor.executeCommand(CommandProcessor.java:1897)
at sun.jvm.hotspot.CommandProcessor.executeCommand(CommandProcessor.java:1867)
at sun.jvm.hotspot.CommandProcessor.run(CommandProcessor.java:1747)
at sun.jvm.hotspot.CLHSDB.run(CLHSDB.java:91)
at sun.jvm.hotspot.CLHSDB.main(CLHSDB.java:35)
Caused by: java.lang.RuntimeException: No type named "FreeList" in database
at sun.jvm.hotspot.types.basic.BasicTypeDataBase.lookupType(BasicTypeDataBase.java:80)
at sun.jvm.hotspot.HotSpotTypeDataBase.lookupType(HotSpotTypeDataBase.java:134)
at sun.jvm.hotspot.types.basic.BasicTypeDataBase.lookupType(BasicTypeDataBase.java:74)
at sun.jvm.hotspot.memory.FreeList.initialize(FreeList.java:44)
at sun.jvm.hotspot.memory.FreeList.access$000(FreeList.java:34)
at sun.jvm.hotspot.memory.FreeList$1.update(FreeList.java:38)
at sun.jvm.hotspot.runtime.VM.registerVMInitializedObserver(VM.java:402)
at sun.jvm.hotspot.memory.FreeList.<clinit>(FreeList.java:36)
... 11 more
So I made a patch to fix them and now ¡°universe¡± command works well. Could someone help to review the patch below?
diff -r b14da2e6f2dc -r 8652e04889a4 agent/src/share/classes/sun/jvm/hotspot/memory/AFLBinaryTreeDictionary.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/memory/AFLBinaryTreeDictionary.java Fri Jan 18 09:56:06 2013 +0800
@@ -0,0 +1,59 @@
+/*
+ * @(#)AFLBinaryTreeDictionary.java
+ * Copyright (c) 2000, 2008, 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<http://www.oracle.com> if you need additional information or have any
+ * questions.
+ *
+ */
+
+package sun.jvm.hotspot.memory;
+
+import java.util.*;
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.types.*;
+import sun.jvm.hotspot.runtime.*;
+
+public class AFLBinaryTreeDictionary extends VMObject {
+ static {
+ VM.registerVMInitializedObserver(new Observer() {
+ public void update(Observable o, Object data) {
+ initialize(VM.getVM().getTypeDataBase());
+ }
+ });
+ }
+
+ private static synchronized void initialize(TypeDataBase db) {
+ Type type = db.lookupType("AFLBinaryTreeDictionary");
+ totalSizeField = type.getCIntegerField("_total_size");
+ }
+
+ // Fields
+ private static CIntegerField totalSizeField;
+
+ // Accessors
+ public long size() {
+ return totalSizeField.getValue(addr);
+ }
+
+ // Constructor
+ public AFLBinaryTreeDictionary(Address addr) {
+ super(addr);
+ }
+}
diff -r b14da2e6f2dc -r 8652e04889a4 agent/src/share/classes/sun/jvm/hotspot/memory/BinaryTreeDictionary.java
--- a/agent/src/share/classes/sun/jvm/hotspot/memory/BinaryTreeDictionary.java Thu Jan 17 13:40:31 2013 -0500
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,59 +0,0 @@
-/*
- * @(#)BinaryTreeDictionary.java
- * Copyright (c) 2000, 2008, 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<http://www.oracle.com> if you need additional information or have any
- * questions.
- *
- */
-
-package sun.jvm.hotspot.memory;
-
-import java.util.*;
-import sun.jvm.hotspot.debugger.*;
-import sun.jvm.hotspot.types.*;
-import sun.jvm.hotspot.runtime.*;
-
-public class BinaryTreeDictionary extends VMObject {
- static {
- VM.registerVMInitializedObserver(new Observer() {
- public void update(Observable o, Object data) {
- initialize(VM.getVM().getTypeDataBase());
- }
- });
- }
-
- private static synchronized void initialize(TypeDataBase db) {
- Type type = db.lookupType("BinaryTreeDictionary");
- totalSizeField = type.getCIntegerField("_totalSize");
- }
-
- // Fields
- private static CIntegerField totalSizeField;
-
- // Accessors
- public long size() {
- return totalSizeField.getValue(addr);
- }
-
- // Constructor
- public BinaryTreeDictionary(Address addr) {
- super(addr);
- }
-}
diff -r b14da2e6f2dc -r 8652e04889a4 agent/src/share/classes/sun/jvm/hotspot/memory/CompactibleFreeListSpace.java
--- a/agent/src/share/classes/sun/jvm/hotspot/memory/CompactibleFreeListSpace.java Thu Jan 17 13:40:31 2013 -0500
+++ b/agent/src/share/classes/sun/jvm/hotspot/memory/CompactibleFreeListSpace.java Fri Jan 18 09:56:06 2013 +0800
@@ -117,7 +117,7 @@
}
// large block
- BinaryTreeDictionary bfbd = (BinaryTreeDictionary) VMObjectFactory.newObject(BinaryTreeDictionary.class,
+ AFLBinaryTreeDictionary bfbd = (AFLBinaryTreeDictionary) VMObjectFactory.newObject(AFLBinaryTreeDictionary.class,
dictionaryField.getValue(addr));
size += bfbd.size();
diff -r b14da2e6f2dc -r 8652e04889a4 agent/src/share/classes/sun/jvm/hotspot/memory/FreeList.java
--- a/agent/src/share/classes/sun/jvm/hotspot/memory/FreeList.java Thu Jan 17 13:40:31 2013 -0500
+++ b/agent/src/share/classes/sun/jvm/hotspot/memory/FreeList.java Fri Jan 18 09:56:06 2013 +0800
@@ -41,7 +41,7 @@
}
private static synchronized void initialize(TypeDataBase db) {
- Type type = db.lookupType("FreeList");
+ Type type = db.lookupType("FreeList<FreeChunk>");
sizeField = type.getCIntegerField("_size");
countField = type.getCIntegerField("_count");
headerSize = type.getSize();
diff -r b14da2e6f2dc -r 8652e04889a4 src/share/vm/gc_implementation/concurrentMarkSweep/vmStructs_cms.hpp
--- a/src/share/vm/gc_implementation/concurrentMarkSweep/vmStructs_cms.hpp Thu Jan 17 13:40:31 2013 -0500
+++ b/src/share/vm/gc_implementation/concurrentMarkSweep/vmStructs_cms.hpp Fri Jan 18 09:56:06 2013 +0800
@@ -43,7 +43,8 @@
nonstatic_field(LinearAllocBlock, _word_size, size_t) \
nonstatic_field(AFLBinaryTreeDictionary, _total_size, size_t) \
nonstatic_field(CompactibleFreeListSpace, _indexedFreeList[0], FreeList<FreeChunk>) \
- nonstatic_field(CompactibleFreeListSpace, _smallLinearAllocBlock, LinearAllocBlock)
+ nonstatic_field(CompactibleFreeListSpace, _smallLinearAllocBlock, LinearAllocBlock) \
+ nonstatic_field(CompactibleFreeListSpace, _dictionary, FreeBlockDictionary<FreeChunk>*)
#define VM_TYPES_CMS(declare_type, \
Regards,
Yunda
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