Message #785

From: Brandon Enright <bmenrigh@ucsd.edu>
Subject: Re: [MC4D] The final build?
Date: Tue, 17 Nov 2009 03:02:12 +0000

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On Tue, 17 Nov 2009 02:20:20 +0000
Brandon Enright <bmenrigh@ucsd.edu> wrote:
>
> Hi Melinda,
>
[…snip…]
> I’m running sun-jdk-1.6.0.17 on Linux amd64/x86_64
>
> I’m pretty adept with GDB and troubleshooting compiled applications
> but I don’t know enough about Java to be useful. If you can give me
> the steps to force Java to print a stack trace when it is hung I’d be
> happy to do so. I’m also up for running a special build if you have
> some patches in mind. I may need my hand held through the build phase
> though.

I ended up figuring out how to take a stacktrace (jstack -l <pid>). It
looks like it could be a deadlock. Almost all of the threads are
waiting on various locks.

Rather than clutter the list, I have put the stacktrace here:

http://noh.ucsd.edu/~bmenrigh/jstack_mc4d_4_0.txt

This was taken with the application hung after pressing ^F

Brandon

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