Thanks for the info.
We haven't had the problem again so far, so we will leave it as is (the
deadlock can should occur after a restart, so we can monitor it)
I may look into the fix on my development pc and let you know.

Glen.

2007/2/21, Remy Maucherat <[EMAIL PROTECTED]>:

Glen Vermeylen wrote:
> Hello all,
>
> We've seen strange behaviour on production (tomcat 5.5.20/java 6):
> immediately after restart no-one could login. Using jconsole we saw that
> there was a deadlock in the classloader.
> Today I've also had the problem on development (tomcat 6.0.9/ java 6).
> Its a
> shame I was using tomcat 6.0.9 instead of 5.5.20, but it seems the two
> problems are the same.
> The problem occurs sometimes when multiple browsers are trying to
> connect to
> the server while it is still starting up.
> I've tried to reproduce the problem on both 5.5.20 and 6.0.9 by trying
to
> start multiple browsers during application startup, but I cannot trigger
> the
> deadlock again.
> Using jconsole I saw there were 2 httpthreads locking eachother.
>
> Below are the stacktraces of both threads (I also have screenshots of
> jconsole showing the threads the deadlocks-screen).
>
> I couldn't find the problem myself, so I turn to this list for help.

Please test the patch if you can.

Rémy

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