yzb81 created DIRMINA-995:
-----------------------------
Summary: Deadlock when using SSL and proxy
Key: DIRMINA-995
URL: https://issues.apache.org/jira/browse/DIRMINA-995
Project: MINA
Issue Type: Bug
Components: Filter
Affects Versions: 2.0.7
Environment: JRE 1.6, Linux
Reporter: yzb81
I write a SSL client to connect server through SOCKS5 proxy, then meet a
deadlock.
Maybe the reason of deadlock is I write data to a IoSession in my main thread,
but now this session is reading data from socket.
Found one Java-level deadlock:
=============================
"NioProcessor-7":
waiting to lock monitor 0x0940a8a8 (object 0x98732818, a
org.apache.mina.filter.ssl.SslHandler),
which is held by "Thread-102"
"Thread-102":
waiting to lock monitor 0x09e8128c (object 0x9873d750, a
org.apache.mina.proxy.handlers.socks.Socks5LogicHandler),
which is held by "NioProcessor-7"
Java stack information for the threads listed above:
===================================================
"NioProcessor-7":
at org.apache.mina.filter.ssl.SslFilter.filterWrite(SslFilter.java:576)
- waiting to lock <0x98732818> (a org.apache.mina.filter.ssl.SslHandler)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.callPreviousFilterWrite(DefaultIoFilterChain.java:482)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1400(DefaultIoFilterChain.java:47)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.filterWrite(DefaultIoFilterChain.java:775)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.filterWrite(DefaultIoFilterChain.java:705)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.callPreviousFilterWrite(DefaultIoFilterChain.java:482)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.fireFilterWrite(DefaultIoFilterChain.java:475)
at
org.apache.mina.core.session.AbstractIoSession.write(AbstractIoSession.java:494)
at
org.apache.mina.core.session.AbstractIoSession.write(AbstractIoSession.java:439)
at xxx.xxxProxyHandler.messageReceived(xxxProxyHandler.java:74)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:690)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:417)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:47)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:765)
at
org.apache.mina.filter.ssl.SslHandler.flushScheduledEvents(SslHandler.java:322)
at
org.apache.mina.filter.ssl.SslFilter.messageReceived(SslFilter.java:497)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:417)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:47)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:765)
at
org.apache.mina.proxy.filter.ProxyFilter.messageReceived(ProxyFilter.java:153)
- locked <0x9873d750> (a
org.apache.mina.proxy.handlers.socks.Socks5LogicHandler)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:417)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:47)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:765)
at
org.apache.mina.core.filterchain.IoFilterAdapter.messageReceived(IoFilterAdapter.java:109)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:417)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.fireMessageReceived(DefaultIoFilterChain.java:410)
at
org.apache.mina.core.polling.AbstractPollingIoProcessor.read(AbstractPollingIoProcessor.java:710)
at
org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:664)
at
org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:653)
at
org.apache.mina.core.polling.AbstractPollingIoProcessor.access$600(AbstractPollingIoProcessor.java:67)
at
org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:1124)
at
org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown
Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
"Thread-102":
at
org.apache.mina.proxy.filter.ProxyFilter.writeData(ProxyFilter.java:209)
- waiting to lock <0x9873d750> (a
org.apache.mina.proxy.handlers.socks.Socks5LogicHandler)
at
org.apache.mina.proxy.filter.ProxyFilter.filterWrite(ProxyFilter.java:192)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.callPreviousFilterWrite(DefaultIoFilterChain.java:482)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1400(DefaultIoFilterChain.java:47)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.filterWrite(DefaultIoFilterChain.java:775)
at
org.apache.mina.filter.ssl.SslHandler.flushScheduledEvents(SslHandler.java:316)
- locked <0x98732818> (a org.apache.mina.filter.ssl.SslHandler)
at org.apache.mina.filter.ssl.SslFilter.filterWrite(SslFilter.java:609)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.callPreviousFilterWrite(DefaultIoFilterChain.java:482)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1400(DefaultIoFilterChain.java:47)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.filterWrite(DefaultIoFilterChain.java:775)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.filterWrite(DefaultIoFilterChain.java:705)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.callPreviousFilterWrite(DefaultIoFilterChain.java:482)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.fireFilterWrite(DefaultIoFilterChain.java:475)
at
org.apache.mina.core.session.AbstractIoSession.write(AbstractIoSession.java:494)
at
org.apache.mina.core.session.AbstractIoSession.write(AbstractIoSession.java:439)
at xxx.run(xxx.java:219)
at java.lang.Thread.run(Unknown Source)
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