JVM在libzip.so崩溃
我的JVM一直在libzip.so上持续崩溃，并且出乎意料。我已经将该错误提交给了Oracle，但决定看看这里是否有人遇到过该问题，如果是，您如何处理它？这是一个正在运行的网络应用
Linux 2.6.34-gentoo-r6＃1 SMP Fri Sep 24 00:15:06 EDT 2010 i686
Intel（R）Xeon（R）CPU X5460 @ 3.16GHz
真正的带jsvc的Intel GNU / Linux Tomcat 7.0.14。
我在下面提供了错误报告的快照。它是一台独立的服务器，在运行时没有人可以访问任何tomcat的jar或任何其他jar，并且它不是从NFS托管的。
SIGSEGV (0xb) at pc=0xb6a72295, pid=19470, tid=241171312 JRE version: 6.0_29-b11 Java VM: Java HotSpot(TM) Server VM (20.4-b02 mixed mode linux-x86 )
Problematic frame: C [libzip.so+0x5295] double+0x45
If you would like to submit a bug report, please visit: http://java.sun.com/webapps/bugreport/crash.jsp The crash happened outside the Java Virtual Machine in native code. See problematic frame for where to report the bug.
--------------- T H R E A D ---------------
Current thread (0x1044dc00): JavaThread "catalina-exec-177" daemon [_thread_in_native, id=21423, stack(0x0e5af000,0x0e600000)]
siginfo:si_signo=SIGSEGV: si_errno=0, si_code=2 (SEGV_ACCERR), si_addr=0x10dfc000
Registers: EAX=0x10d00018, EBX=0xb6a7dabc, ECX=0x000fbfe6, EDX=0x00000000 ESP=0x0e5febf0, EBP=0x0e5fec18, ESI=0x0eadc098, EDI=0x10458800 EIP=0xb6a72295, EFLAGS=0x00010246, CR2=0x10dfc000
Top of Stack: (sp=0x0e5febf0) 0x0e5febf0: b7869118 00000000 0ef2e648 b6a71216 0x0e5fec00: 13d1f690 10c492b0 0000bfe1 b6a7dabc 0x0e5fec10: 10458800 0ef2e648 0e5fec48 b6a7134d 0x0e5fec20: 10458800 00000004 0e5fec48 b77b727c 0x0e5fec30: 00000007 3d4af570 ffffffff b6a7dabc 0x0e5fec40: 31fe9ad0 1044dd20 0e5feca8 b6a6f585 0x0e5fec50: 0ef2e648 00000004 00000002 00000000 0x0e5fec60: 10b59810 3d5cff58 00000002 00004114
Instructions: (pc=0xb6a72295) 0xb6a72275: 05 01 00 00 0f 86 79 03 00 00 83 fa 02 76 41 8b 0xb6a72285: 57 40 8b 4f 50 8b 47 30 8b 77 38 d3 e2 8b 4f 64 0xb6a72295: 0f b6 44 01 02 31 c2 8b 47 4c 21 c2 8b 47 2c 89 0xb6a722a5: 57 40 21 c1 8b 47 3c 0f b7 04 50 89 45 f0 66 89
Register to memory mapping:
EAX=0x10d00018 is an unknown value EBX=0xb6a7dabc: <offset 0x10abc> in /usr/local/jdk1.6.0_29/jre/lib/i386/libzip.so at 0xb6a6d000 ECX=0x000fbfe6 is an unknown value EDX=0x00000000 is an unknown value ESP=0x0e5febf0 is pointing into the stack for thread: 0x1044dc00 EBP=0x0e5fec18 is pointing into the stack for thread: 0x1044dc00 ESI=0x0eadc098 is an unknown value EDI=0x10458800 is an unknown value
Stack: [0x0e5af000,0x0e600000], sp=0x0e5febf0, free space=318k Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) C [libzip.so+0x5295] double+0x45 C [libzip.so+0x434d] double+0x10d C [libzip.so+0x2585] Java_java_util_zip_Deflater_deflateBytes+0x355 J java.util.zip.Deflater.deflateBytes(J[BII)I
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code) J java.util.zip.Deflater.deflateBytes(J[BII)I J java.util.zip.GZIPOutputStream.finish()V J org.apache.coyote.http11.Http11NioProcessor.actionInternal(Lorg/apache/coyote/ActionCode;Ljava/lang/Object;)V J org.apache.coyote.http11.AbstractHttp11Processor.action(Lorg/apache/coyote/ActionCode;Ljava/lang/Object;)V J org.apache.catalina.connector.Response.finishResponse()V J org.apache.catalina.connector.CoyoteAdapter.service(Lorg/apache/coyote/Request;Lorg/apache/coyote/Response;)V J org.apache.coyote.http11.Http11NioProcessor.process(Lorg/apache/tomcat/util/net/NioChannel;)Lorg/apache/tomcat/util/net/AbstractEndpoint$Handler$SocketState; J org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run()V J java.util.concurrent.ThreadPoolExecutor$Worker.run()V j java.lang.Thread.run()V+11 v ~StubRoutines::call_stub
任何提示表示赞赏。
回答：
这是修补的类，有点像每晚构建的，需要对其进行测试。该JGZipOutputStream班可以在这里找到： 创建使用jzlib
gzip文件
可以在http://www.jcraft.com/jzlib/中找到JZlib
您可以通过在引导程序路径（-Xbootclasspath/a:）中添加一个小jar 或对tomcat本身进行解压缩/ jar进行修补。
额外的好处是java impl。实际上比本地代码快。
/* * Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.coyote.http11.filters;
import java.io.IOException;
import java.io.OutputStream;
import java.util.zip.GZIPOutputStream;
import org.apache.coyote.OutputBuffer;
import org.apache.coyote.Response;
import org.apache.coyote.http11.OutputFilter;
import org.apache.tomcat.util.buf.ByteChunk;
import bestsss.util.JGZipOutputStream;
import com.jcraft.jzlib.JZlib;
/**
* Gzip output filter.
*
* @author Remy Maucherat
*/
public class GzipOutputFilter implements OutputFilter {
/**
* Logger.
*/
protected static org.apache.juli.logging.Log log =
org.apache.juli.logging.LogFactory.getLog(GzipOutputFilter.class);
// ----------------------------------------------------- Instance Variables
/**
* Next buffer in the pipeline.
*/
protected OutputBuffer buffer;
/**
* Compression output stream.
*/
protected OutputStream compressionStream = null;
/**
* Fake internal output stream.
*/
protected OutputStream fakeOutputStream = new FakeOutputStream();
// --------------------------------------------------- OutputBuffer Methods
/**
* Write some bytes.
*
* @return number of bytes written by the filter
*/
@Override
public int doWrite(ByteChunk chunk, Response res)
throws IOException {
if (compressionStream == null) {
compressionStream = new JGZipOutputStream(fakeOutputStream, new byte[Math.min(32768, Math.max(2048, Integer.highestOneBit(chunk.getLength()-1)<<1))]);
}
compressionStream.write(chunk.getBytes(), chunk.getStart(),
chunk.getLength());
return chunk.getLength();
}
@Override
public long getBytesWritten() {
return buffer.getBytesWritten();
}
// --------------------------------------------------- OutputFilter Methods
/**
* Added to allow flushing to happen for the gzip'ed outputstream
*/
public void flush() {
if (compressionStream != null) {
try {
if (log.isDebugEnabled()) {
log.debug("Flushing the compression stream!");
}
compressionStream.flush();
} catch (IOException e) {
if (log.isDebugEnabled()) {
log.debug("Ignored exception while flushing gzip filter", e);
}
}
}
}
/**
* Some filters need additional parameters from the response. All the
* necessary reading can occur in that method, as this method is called
* after the response header processing is complete.
*/
@Override
public void setResponse(Response response) {
// NOOP: No need for parameters from response in this filter
}
/**
* Set the next buffer in the filter pipeline.
*/
@Override
public void setBuffer(OutputBuffer buffer) {
this.buffer = buffer;
}
/**
* End the current request. It is acceptable to write extra bytes using
* buffer.doWrite during the execution of this method.
*/
@Override
public long end()
throws IOException {
if (compressionStream == null) {
compressionStream = new JGZipOutputStream(fakeOutputStream, new byte[128]);
}
compressionStream.close();
return ((OutputFilter) buffer).end();
}
/**
* Make the filter ready to process the next request.
*/
@Override
public void recycle() {
// Set compression stream to null
compressionStream = null;
}
// ------------------------------------------- FakeOutputStream Inner Class
protected class FakeOutputStream
extends OutputStream {
protected ByteChunk outputChunk = new ByteChunk();
protected byte[] singleByteBuffer = new byte[1];
@Override
public void write(int b)
throws IOException {
// Shouldn't get used for good performance, but is needed for
// compatibility with Sun JDK 1.4.0
singleByteBuffer[0] = (byte) (b & 0xff);
outputChunk.setBytes(singleByteBuffer, 0, 1);
buffer.doWrite(outputChunk, null);
}
@Override
public void write(byte[] b, int off, int len)
throws IOException {
outputChunk.setBytes(b, off, len);
buffer.doWrite(outputChunk, null);
}
@Override
public void flush() throws IOException {/*NOOP*/}
@Override
public void close() throws IOException {/*NOOP*/}
}
}
以上是 JVM在libzip.so崩溃 的全部内容， 来源链接： utcz.com/qa/398590.html
