threads/76513: libpthread is not working

Daniel Eischen deischen at
Thu Jan 20 13:20:28 PST 2005

The following reply was made to PR threads/76513; it has been noted by GNATS.

From: Daniel Eischen <deischen at>
To: justin at
Cc: FreeBSD-gnats-submit at, <freebsd-threads at>
Subject: Re: threads/76513: libpthread is not working
Date: Thu, 20 Jan 2005 16:17:55 -0500 (EST)

 > >Description:
 > 	libpthread is crashing when multiple threads are working inside of a loop
 > 	that is thread-safe inside of my ray-tracer.  When I set libmap to use libc_r
 > 	instead of libpthread everything just works.  Using libpthread with just 1 thread
 > 	also works just fine.
 > >How-To-Repeat:
 > 	Cannoy paste my example code, not open source, try making a simple
 > 	multithreaded program using libpthread.
 You're going to need to provide more information than that.
 We have many multithreaded programs using libpthread, so
 the How-To-Repeat isn't very helpful.
 There were also bugs in 5.3-release that have been fixed since,
 so you can also try updating to -stable or -current.
 Also, if you are using nvidia provided drivers, they are
 not thread-safe with libpthread.

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