kern/86029: undefined reference to `_thread_dump_info'

Christopher Sean Morrison brlcad at
Thu Sep 22 05:20:08 PDT 2005

The following reply was made to PR kern/86029; it has been noted by GNATS.

From: Christopher Sean Morrison <brlcad at>
To: Daniel Eischen <deischen at>
Cc: David Xu <davidxu at>, bug-followup at
Subject: Re: kern/86029: undefined reference to `_thread_dump_info'
Date: Thu, 22 Sep 2005 08:16:26 -0400

 On Sep 21, 2005, at 3:07 PM, Daniel Eischen wrote:
 > If you're debugging the threads library, you should be looking
 > at its source.  SIGINFO just calls _thread_dump_info() (which
 > is not exported in libpthread) and does the same thing.  But,
 > SIGINFO was meant more for us to debug the thread library.
 Good to know, sounds like that may be a better solution for this 
 particular situation and esoteric enough to not warrant maintaining the 
 _thread_dump_info() call in order to support older BSD systems that 
 perhaps predate or don't support the SIGINFO behavior.  For what it's 
 worth, this bit of code has in fact been used to debug the threading 
 libraries in the past.
 > I'm going to close this one.  You'll need something that
 > easily regenerates your problem if you file another bug
 > report on it.
 Thanks for your suggestions and insight.

More information about the freebsd-threads mailing list