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Date:      Mon, 13 Dec 2004 08:08:56 -0800 (PST)
From:      Nick Johnson <freebsd@spatula.net>
To:        Joris Verschoor <j.verschoor@nefli.nl>
Cc:        freebsd-java@freebsd.org
Subject:   Re: FreeBSD 5.3-RELEASE + JDK1.4 native in a Jail -> hangs 99% cpu on kserel
Message-ID:  <20041213080605.U85397@turing.morons.org>
In-Reply-To: <41BDBC4B.40505@nefli.nl>
References:  <41BDBC4B.40505@nefli.nl>

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On Mon, 13 Dec 2004, Joris Verschoor wrote:

> Is there anything I can do to provide more information, for example a
> dump when it's stuck?

kill -3 on the Java process should cause it to do a thread/stack dump,
which may prove useful.

Another thing you can try is running java with -Xrunhprof:depth=8, though
note that this will have a significant impact to performance.  It will,
however, produce stack traces (of depth 8 in this case) for each thread
when you kill the JVM normally (not with kill -9).

   Nick

-- 
"The aptly-named morons.org is an obscenity-laced screed..."
	-- Robert P. Lockwood, Catholic League director of research
Nick Johnson, version 2.1                             http://web.morons.org/



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