> Date: Tue, 30 May 2006 18:34:41 -0400 (EDT) > From: "Brian W. Barrett" <brbar...@open-mpi.org> > Subject: Re: [OMPI devel] memory_malloc_hooks.c and dlclose() > To: Open MPI Developers <de...@open-mpi.org> > Message-ID: <pine.lnx.4.64.0605301833150.21...@milliways.osl.iu.edu> > Content-Type: text/plain; charset="us-ascii" > > On Mon, 22 May 2006, Neil Ludban wrote: > > > I'm getting a core dump when using openmpi-1.0.2 with the MPI extensions > > we're developing for the MATLAB interpreter. This same build of openmpi > > is working great with C programs and our extensions for gnu octave. The > > machine is AMD64 running Linux: > > > > Linux kodos 2.6.9-5.ELsmp #1 SMP Wed Jan 5 19:29:47 EST 2005 x86_64 x86_64 > > x86_64 GNU/Linux > > > > I believe there's a bug in that opal_memory_malloc_hooks_init() links > > itself into the __free_hook chain during initialization, but then it > > never unlinks itself at shutdown. In the interpreter environment, > > libopal.so is dlclose()d and unmapped from memory long before the > > interpreter is done with dynamic memory. A quick check of the nightly > > trunk snapshot reveals some function name changes, but no new shutdown > > code. > > Can you try the attached patch and see if it solves your problem? I think > it will, but I don't have a great way of testing your exact situation. > > Thanks, > > Brian > > -- > Brian Barrett > Graduate Student, Open Systems Lab, Indiana University > http://www.osl.iu.edu/~brbarret/
Problem solved! Thanks- -Neil
