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From: Gavin Atkinson <gavin@FreeBSD.org>
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To: Lin Jui-Nan Eric <ericlin@tamama.org>
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Cc: stable@FreeBSD.org, Alfred Perlstein <alfred@FreeBSD.org>
Subject: Re: Process stuck in STOP state
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On Fri, 26 Dec 2008, Lin Jui-Nan Eric wrote:

> Hi,
>
> Full back-trace is located here:
> http://aqua.pixnet.tw/~jnlin/textdump/event3/1226/

Did you get anywhere with this?  If not, and you are willing to 
recompile your kernel to include WITNESS, can you (in addition to 
the above output) get the output of "show alllocks" next time it happens?

Gavin