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From Maduranga Kannangara <madura...@koodos.com>
Subject Re: Tomcat does not shutdown properly and kill -3 does not work!
Date Wed, 06 Aug 2008 16:10:32 GMT
Peter and all,

Earlier was from my MAC. This thread dump is from RedHat (production
server).

Your help is much appreciated.


Attaching to process ID 12649, please wait...
Debugger attached successfully.
Client compiler detected.
JVM version is 1.5.0_09-b01
Thread 12649: (state = BLOCKED)


Thread 17512: (state = IN_NATIVE)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException:
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 17507: (state = IN_NATIVE)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException:
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 16161: (state = IN_NATIVE)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException:
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 16144: (state = IN_NATIVE)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException:
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 15426: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException:
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 15416: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException:
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 15409: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException:
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 15398: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException:
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 15388: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException:
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 15377: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException:
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 15368: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException:
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 15365: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException:
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 15355: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException:
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 15351: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException:
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 14373: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException:
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 12706: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException:
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 12701: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException:
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 12700: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException:
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 12699: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException:
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 12698: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException:
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 12691: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException: 
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs 
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 12690: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException: 
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs 
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 12681: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException: 
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs 
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 12680: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException: 
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs 
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 12679: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException: 
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs 
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 12678: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException: 
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs 
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 12677: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException: 
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs 
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 12676: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException: 
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs 
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 12675: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException: 
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t(LinuxDebuggerLocal.java:437)
        at 
sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at 
sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrame
Guess(LinuxX86JavaThreadPDAccess.java:75)
        at 
sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
        at 
sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs 
failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSe
t0(Native Method)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLo
cal.java:34)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterS
etTask.doit(LinuxDebuggerLocal.java:431)
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.run(LinuxDebuggerLocal.java:109)


Thread 12674: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException: 
sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at 
sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerTh
read.execute(LinuxDebuggerLocal.java:134)
        at sun.jvm.hotspot.debugger.li

Thanks
Muds


On 6/8/08 11:58, "Maduranga Kannangara" <maduranga@koodos.com> wrote:

> Thanks a lot Peter! I got a thread dump using "jstack 704" (PID was 704)
> I think I need a little more of your help to find out where exactly going
> wrong. Below is my dump and thanks a lot for your time.
> 
> MadurangaMAC:bin Maduranga$ jstack 704
> Attaching to process ID 704, please wait...
> Debugger attached successfully.
> Server compiler detected.
> JVM version is 1.5.0_13-119
> Thread t@59395: (state = BLOCKED)
> 
> 
> Thread t@62211: (state = BLOCKED)
>  - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
>  - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)
>  - org.apache.jk.common.ChannelSocket.accept(org.apache.jk.core.MsgContext)
> @bci=20, line=306 (Interpreted frame)
>  - org.apache.jk.common.ChannelSocket.acceptConnections() @bci=72, line=666
> (Interpreted frame)
>  - 
> org.apache.jk.common.ChannelSocket$SocketAcceptor.runIt(java.lang.Object[])
> @bci=4, line=876 (Interpreted frame)
>  - org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run() @bci=167,
> line=689 (Interpreted frame)
>  - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)
> 
> 
> Thread t@63491: (state = BLOCKED)
>  - java.lang.Thread.sleep(long) @bci=0 (Interpreted frame)
>  - 
> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(java.lang.Object
> []) @bci=23, line=62 (Interpreted frame)
>  - org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run() @bci=167,
> line=689 (Interpreted frame)
>  - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)
> 
> 
> Thread t@63747: (state = BLOCKED)
>  - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
>  - java.util.TimerThread.mainLoop() @bci=201, line=509 (Interpreted frame)
>  - java.util.TimerThread.run() @bci=1, line=462 (Interpreted frame)
> 
> 
> Thread t@64003: (state = BLOCKED)
>  - java.lang.Thread.sleep(long) @bci=0 (Interpreted frame)
>  - org.quartz.core.QuartzSchedulerThread.run() @bci=870, line=420
> (Interpreted frame)
> 
> 
> Thread t@64259: (state = BLOCKED)
>  - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
>  - org.quartz.simpl.SimpleThreadPool$WorkerThread.run() @bci=44, line=523
> (Interpreted frame)
> 
> 
> Thread t@64515: (state = BLOCKED)
>  - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
>  - org.quartz.simpl.SimpleThreadPool$WorkerThread.run() @bci=44, line=523
> (Interpreted frame)
> 
> 
> Thread t@64771: (state = BLOCKED)
>  - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
>  - org.quartz.simpl.SimpleThreadPool$WorkerThread.run() @bci=44, line=523
> (Interpreted frame)
> 
> 
> Thread t@65795: (state = BLOCKED)
>  - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
>  - org.quartz.simpl.SimpleThreadPool$WorkerThread.run() @bci=44, line=523
> (Interpreted frame)
> 
> 
> Thread t@66051: (state = BLOCKED)
>  - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
>  - org.quartz.simpl.SimpleThreadPool$WorkerThread.run() @bci=44, line=523
> (Interpreted frame)
> 
> 
> Thread t@66307: (state = BLOCKED)
>  - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
>  - org.quartz.simpl.SimpleThreadPool$WorkerThread.run() @bci=44, line=523
> (Interpreted frame)
> 
> 
> Thread t@66563: (state = BLOCKED)
>  - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
>  - org.quartz.simpl.SimpleThreadPool$WorkerThread.run() @bci=44, line=523
> (Interpreted frame)
> 
> 
> Thread t@66819: (state = BLOCKED)
>  - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
>  - org.quartz.simpl.SimpleThreadPool$WorkerThread.run() @bci=44, line=523
> (Interpreted frame)
> 
> 
> Thread t@67075: (state = BLOCKED)
>  - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
>  - org.quartz.simpl.SimpleThreadPool$WorkerThread.run() @bci=44, line=523
> (Interpreted frame)
> 
> 
> Thread t@67331: (state = BLOCKED)
>  - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
>  - org.quartz.simpl.SimpleThreadPool$WorkerThread.run() @bci=44, line=523
> (Interpreted frame)
> 
> 
> Thread t@67587: (state = BLOCKED)
> 
> 
> Thread t@67843: (state = BLOCKED)
>  - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
>  - java.lang.ref.ReferenceQueue.remove(long) @bci=44, line=116 (Interpreted
> frame)
>  - java.lang.ref.ReferenceQueue.remove() @bci=2, line=132 (Interpreted
> frame)
>  - java.lang.ref.Finalizer$FinalizerThread.run() @bci=3, line=159
> (Interpreted frame)
> 
> 
> Thread t@68099: (state = BLOCKED)
>  - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
>  - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)
>  - java.lang.ref.Reference$ReferenceHandler.run() @bci=46, line=116
> (Interpreted frame)
> 
> 
> Thanks again
> Muds
> 
> 
> On 6/8/08 11:27, "Peter Crowther" <Peter.Crowther@melandra.com> wrote:
> 
>>> From: Maduranga Kannangara [mailto:maduranga@koodos.com]
>>> What I need simply is a clean shutdown on Tomcat :-)
>> 
>> Yes.  In order to *get* that clean shutdown, you need to find out what's
>> preventing it :-).
>> 
>> One common problem is that something in your webapp has created a thread and
>> not marked it as a daemon thread
>> 
(http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Thread.html#setDaemon(bool>> 
e
>> an) - yes, I know that's probably for the wrong Java version, but the problem
>> still stands).  The JVM won't exit while that thread's still alive, so the
>> notion of trying to shut down Tomcat then getting a thread dump after that
>> point is a very good one.
>> 
>> Hmm.  You're on a 1.5 JDK on Linux.  That means you should be able to use
>> jstack to get a thread dump - might be worth a try.  I don't think we can 
>> help
>> you much more on this list until we have some idea of what's keeping the JVM
>> running!
>> 
>>                 - Peter
>> 
>> ---------------------------------------------------------------------
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>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: users-help@tomcat.apache.org
>> 
> 
> 
> ---------------------------------------------------------------------
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