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Date: Sat, 22 Mar 2008 00:07:01 +0100
From: Kris Kennaway <kris@FreeBSD.org>
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To: Gary Stanley <gary@velocity-servers.net>
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Cc: freebsd-threads@FreeBSD.org
Subject: Re: Process stuck in STOP state
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Gary Stanley wrote:
> Hello. Please CC me replies as I'm not subscribed to this list.
> 
> I upgraded a machine from 6 to 7 recently, and I'm using libkse for mono 
> 1.1.13.4. At least 1 time a day the process is stuck in
> the STOP state and is unkillable. procctl doesn't help, gdb won't attach 
> to the process and ktrace/truss don't display any data.
> 
> This only occurs on FreeBSD7 with libkse, I haven't tried libthr yet.

You likely want to use libthr, it is the way forward for threading on 
FreeBSD.  libkse support was already removed from FreeBSD 8.  Use 
libmap.conf to switch your applications to libthr.

Kris