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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=15497 deadlock in threadpool Summary: deadlock in threadpool Product: Tomcat 4 Version: 4.1.12 Platform: PC OS/Version: Windows NT/2K Status: NEW Severity: Critical Priority: Other Component: Catalina AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] I think I have found a possible deadlock in Tomcat 4.1.12 and 4.1.14 using JDk 1.4.1 Here is the thread dump of the vm: "Thread-15" daemon prio=5 tid=0x0AE6E520 nid=0x10c0 in Object.wait() [c71f000..c71fd88] at java.lang.Object.wait(Native Method) - waiting on <05289758> (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable) at java.lang.Object.wait(Object.java:426) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run (ThreadPool.java:512) - locked <05289758> (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable) at java.lang.Thread.run(Thread.java:536) "Thread-14" daemon prio=5 tid=0x0AE72D90 nid=0x9f0 in Object.wait() [c6df000..c6dfd88] at java.lang.Object.wait(Native Method) - waiting on <052897C0> (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable) at java.lang.Object.wait(Object.java:426) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run (ThreadPool.java:512) - locked <052897C0> (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable) at java.lang.Thread.run(Thread.java:536) "Thread-9" daemon prio=5 tid=0x0AEE38E8 nid=0x1134 in Object.wait() [c55f000..c55fd88] at java.lang.Object.wait(Native Method) - waiting on <039BF8B8> (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable) at java.lang.Object.wait(Object.java:426) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run (ThreadPool.java:512) - locked <039BF8B8> (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable) at java.lang.Thread.run(Thread.java:536) "MonitorRunnable" daemon prio=5 tid=0x0B694950 nid=0xca8 in Object.wait() [c4df000..c4dfd88] at java.lang.Object.wait(Native Method) - waiting on <037A6708> (a org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable) at org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable.run (ThreadPool.java:423) - locked <037A6708> (a org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable) at java.lang.Thread.run(Thread.java:536) "Thread-6" daemon prio=5 tid=0x0B693DC0 nid=0x908 in Object.wait() [c49f000..c49fd88] at java.lang.Object.wait(Native Method) - waiting on <037B2880> (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable) at java.lang.Object.wait(Object.java:426) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run (ThreadPool.java:512) - locked <037B2880> (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable) at java.lang.Thread.run(Thread.java:536) "Thread-5" daemon prio=5 tid=0x0B6933D0 nid=0xe4c in Object.wait() [c45f000..c45fd88] at java.lang.Object.wait(Native Method) - waiting on <037B28E8> (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable) at java.lang.Object.wait(Object.java:426) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run (ThreadPool.java:512) - locked <037B28E8> (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable) at java.lang.Thread.run(Thread.java:536) "HostConfig[localhost]" daemon prio=5 tid=0x0B6923E8 nid=0x1044 waiting on condition [c39f000..c39fd88] at java.lang.Thread.sleep(Native Method) at org.apache.catalina.startup.HostConfig.threadSleep (HostConfig.java:985) at org.apache.catalina.startup.HostConfig.run(HostConfig.java:1009) at java.lang.Thread.run(Thread.java:536) "StandardManager[/webdav]" daemon prio=5 tid=0x0AE40E98 nid=0x9d4 waiting on condition [c35f000..c35fd88] at java.lang.Thread.sleep(Native Method) at org.apache.catalina.session.StandardManager.threadSleep (StandardManager.java:780) at org.apache.catalina.session.StandardManager.run (StandardManager.java:839) at java.lang.Thread.run(Thread.java:536) "StandardManager[]" daemon prio=5 tid=0x0AE40200 nid=0x112c waiting on condition [c2df000..c2dfd88] at java.lang.Thread.sleep(Native Method) at org.apache.catalina.session.StandardManager.threadSleep (StandardManager.java:780) at org.apache.catalina.session.StandardManager.run (StandardManager.java:839) at java.lang.Thread.run(Thread.java:536) "Thread-2" daemon prio=5 tid=0x0AD67230 nid=0x11b8 waiting on condition [c25f000..c25fd88] at java.lang.Thread.sleep(Native Method) at com.sap.mw.jco.JCO$PoolManager$TimeoutChecker.run(JCO.java:3001) "StandardManager[/adstar]" daemon prio=5 tid=0x0AD84670 nid=0x1330 waiting on condition [bedf000..bedfd88] at java.lang.Thread.sleep(Native Method) at org.apache.catalina.session.StandardManager.threadSleep (StandardManager.java:780) at org.apache.catalina.session.StandardManager.run (StandardManager.java:839) at java.lang.Thread.run(Thread.java:536) "StandardManager[/manager]" daemon prio=5 tid=0x0AC92CD0 nid=0x13ec waiting on condition [be9f000..be9fd88] at java.lang.Thread.sleep(Native Method) at org.apache.catalina.session.StandardManager.threadSleep (StandardManager.java:780) at org.apache.catalina.session.StandardManager.run (StandardManager.java:839) at java.lang.Thread.run(Thread.java:536) "StandardManager[/admin]" daemon prio=5 tid=0x0B62BCA0 nid=0xdbc waiting on condition [be5f000..be5fd88] at java.lang.Thread.sleep(Native Method) at org.apache.catalina.session.StandardManager.threadSleep (StandardManager.java:780) at org.apache.catalina.session.StandardManager.run (StandardManager.java:839) at java.lang.Thread.run(Thread.java:536) "Signal Dispatcher" daemon prio=10 tid=0x00848D60 nid=0x1038 waiting on condition [0..0] "Finalizer" daemon prio=9 tid=0x0023FD28 nid=0xeec in Object.wait() [aa8f000..aa8fd88] at java.lang.Object.wait(Native Method) - waiting on <02E25148> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:111) - locked <02E25148> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:127) at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159) "Reference Handler" daemon prio=10 tid=0x0023E8A0 nid=0x10d8 in Object.wait() [a a4f000..aa4fd88] at java.lang.Object.wait(Native Method) - waiting on <02E251B0> (a java.lang.ref.Reference$Lock) at java.lang.Object.wait(Object.java:426) at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:113) - locked <02E251B0> (a java.lang.ref.Reference$Lock) "main" prio=5 tid=0x00235570 nid=0xa8c runnable [6f000..6fc3c] at java.net.PlainSocketImpl.socketAccept(Native Method) at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:353) - locked <03818C18> (a java.net.PlainSocketImpl) at java.net.ServerSocket.implAccept(ServerSocket.java:439) at java.net.ServerSocket.accept(ServerSocket.java:410) at org.apache.catalina.core.StandardServer.await (StandardServer.java:526) at org.apache.catalina.startup.Catalina.start(Catalina.java:521) at org.apache.catalina.startup.Catalina.execute(Catalina.java:400) at org.apache.catalina.startup.Catalina.process(Catalina.java:180) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:203) "VM Thread" prio=5 tid=0x0023D668 nid=0x1274 runnable "VM Periodic Task Thread" prio=10 tid=0x00847B68 nid=0x1388 waiting on condition "Suspend Checker Thread" prio=10 tid=0x00848780 nid=0xdec runnable -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
