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Application Freeze occasionally [message #1102123]

Thu, 05 September 2013 07:48

Ramesh Pank
Messages: 1
Registered: September 2013

Junior Member

Hello,

This is related to a forum topic earlier - http://www.eclipse.org/forums/index.php/t/378202/
There has been no resolution to that and we also face the same issue now. From the thread locks below I notice a deadlock with the UIThread. There are no errors on the server logs. We use JBOSS EAP6 and RAP1.4. Anyone who faced the same issue or know of any actions that could help me identify the root cause is greatly appreciated.

Deadlock Detection:

Found one Java-level deadlock:
=============================

"Thread-5338":
waiting to lock Monitor@0x00007fcf3455e8d0 (Object@0x00000007b9840650, a java/lang/Object),
which is held by "UIThread [qOPWJHhgYk1JbITv-IKJoq+y]"
"UIThread [qOPWJHhgYk1JbITv-IKJoq+y]":
waiting to lock Monitor@0x00007fcf480016e0 (Object@0x00000007b988c380, a com/speedware/imodernize/rapclient/StatusThread),
which is held by "Thread-5338"

Found a total of 1 deadlock.

Thread 3169: (state = BLOCKED)
- sun.misc.Unsafe.park(boolean, long) @bci=0 (Compiled frame; information may be imprecise)
- java.util.concurrent.locks.LockSupport.parkNanos(java.lang.Object, long) @bci=20, line=196 (Interpreted frame)
- java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(java.util.concurrent.SynchronousQueue$TransferStack$SNode, boolean, long) @bci=174, line=424 (Compiled frame)
- java.util.concurrent.SynchronousQueue$TransferStack.transfer(java.lang.Object, boolean, long) @bci=102, line=323 (Interpreted frame)
- java.util.concurrent.SynchronousQueue.poll(long, java.util.concurrent.TimeUnit) @bci=11, line=874 (Interpreted frame)
- java.util.concurrent.ThreadPoolExecutor.getTask() @bci=62, line=955 (Compiled frame)
- java.util.concurrent.ThreadPoolExecutor$Worker.run() @bci=23, line=917 (Compiled frame)
- java.lang.Thread.run() @bci=11, line=662 (Interpreted frame)

Thread 25461: (state = BLOCKED)
- java.lang.Object.wait(long) @bci=0 (Interpreted frame)
- com.speedware.imodernize.rapclient.StatusThread.run() @bci=24, line=41 (Interpreted frame)

Attachment: jboss-tdump1.log
(Size: 154.34KB, Downloaded 6 times)

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Re: Application Freeze occasionally [message #1103071 is a reply to message #1102123]

Fri, 06 September 2013 06:54

Ivan Furnadjiev
Messages: 1561
Registered: July 2009

Senior Member

Hi,
I have no answer to your question, but what is this thread -
com/speedware/imodernize/rapclient/StatusThread?
Best,
Ivan

On 9/5/2013 6:06 PM, Ramesh Pank wrote:
> Hello,
>
> This is related to a forum topic earlier - http://www.eclipse.org/forums/index.php/t/378202/
> There has been no resolution to that and we also face the same issue now. From the thread locks below I notice a deadlock with the UIThread. There are no errors on the server logs. We use JBOSS EAP6 and RAP1.4. Anyone who faced the same issue or know of any actions that could help me identify the root cause is greatly appreciated.
>
> Deadlock Detection:
>
> Found one Java-level deadlock:
> =============================
>
> "Thread-5338":
> waiting to lock Monitor@0x00007fcf3455e8d0 (Object@0x00000007b9840650, a java/lang/Object),
> which is held by "UIThread [qOPWJHhgYk1JbITv-IKJoq+y]"
> "UIThread [qOPWJHhgYk1JbITv-IKJoq+y]":
> waiting to lock Monitor@0x00007fcf480016e0 (Object@0x00000007b988c380, a com/speedware/imodernize/rapclient/StatusThread),
> which is held by "Thread-5338"
>
> Found a total of 1 deadlock.
>
> Thread 3169: (state = BLOCKED)
> - sun.misc.Unsafe.park(boolean, long) @bci=0 (Compiled frame; information may be imprecise)
> - java.util.concurrent.locks.LockSupport.parkNanos(java.lang.Object, long) @bci=20, line=196 (Interpreted frame)
> - java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(java.util.concurrent.SynchronousQueue$TransferStack$SNode, boolean, long) @bci=174, line=424 (Compiled frame)
> - java.util.concurrent.SynchronousQueue$TransferStack.transfer(java.lang.Object, boolean, long) @bci=102, line=323 (Interpreted frame)
> - java.util.concurrent.SynchronousQueue.poll(long, java.util.concurrent.TimeUnit) @bci=11, line=874 (Interpreted frame)
> - java.util.concurrent.ThreadPoolExecutor.getTask() @bci=62, line=955 (Compiled frame)
> - java.util.concurrent.ThreadPoolExecutor$Worker.run() @bci=23, line=917 (Compiled frame)
> - java.lang.Thread.run() @bci=11, line=662 (Interpreted frame)
>
>
> Thread 25461: (state = BLOCKED)
> - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
> - com.speedware.imodernize.rapclient.StatusThread.run() @bci=24, line=41 (Interpreted frame)
>

--
Ivan Furnadjiev

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