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Date:      Wed, 16 Jun 2004 11:13:39 -0500
From:      Dan Nelson <dnelson@allantgroup.com>
To:        Liam Foy <liamfoy@sepulcrum.org>
Cc:        hackers@freebsd.org
Subject:   Re: libpthread problem
Message-ID:  <20040616161338.GA7743@dan.emsphone.com>
In-Reply-To: <20040616144127.0d92076d.liamfoy@sepulcrum.org>
References:  <20040616144127.0d92076d.liamfoy@sepulcrum.org>

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In the last episode (Jun 16), Liam Foy said:
> Hey guys, I seen to get this error on certain applications, such as
> xmms and beep-media-player:
> 
> Fatal error 'Spinlock called when not threaded.' at line 83 in file /usr/src/lib/libpthread/thread/thr_spinlock.c (errno = 0)
> Segmentation fault (core dumped)

That means that the program was linked with two threading libraries
(usually libc_r and libpthread), and unfortunately, they are not smart
enough to only initialize one or the other so they step on each others'
data.  Run "ldd -a" on your binary, determine which file depends on
libc_r, and rebuild the port providing that file.

A workaround would be to add a libmap.conf entry remapping libc_r to
libpthread globally.  See the libmap.conf manpage for examples.

-- 
	Dan Nelson
	dnelson@allantgroup.com



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