pthread_mutexattr_settype assertion from PulseAudio with Amarok 2.2

[Matt]

Does anyone know if the root cause of the "Assertion
‘pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE) == 0′
failed at pulsecore/mutex-posix.c:52, function pa_mutex_new().
Aborting." error discussed at:

http://miwi.bsdcrew.de/2009/07/firefox-35-in-ports/

was ever determined?  I'm seeing this same error when trying to update
the amarok-kde4 port to version 2.2 and the only discussion I can find
related to this issue is at
http://lists.freebsd.org/pipermail/freebsd-gnome/2009-July/022732.html
and I don't see a resolution.

Relevant data about my system:
- All ports built in Tinderbox with "WITH_DEBUG=yes" set
- Tinderbox jail is 8-STABLE from 2009-09-10 16:42:33
- Tinderbox ports were updated 2009-09-14 12:59:10
- System where ports are installed is same host running the Tinderbox.
 "uname -a" states (sanitized) "FreeBSD <hostname> 8.0-RC1 FreeBSD
8.0-RC1 #0: Mon Sep 21 09:46:16 CDT 2009
root@<hostname>:/usr/obj/usr/src/sys/CUSTOM  i386"
- pkg_info list available at http://freebsd-gnome.pastebin.com/m1b0d9c9f

I can't seem to get any usable core dumps from the system, but I can
provide ktrace or other output if anyone is interested.

Thank you,
Matt