Thank you! George reviewed your patch and adjusted it a bit. We applied it to master and it's pending to the release series (v1.8.x).
Would you mind testing a nightly master snapshot? It should be in tonight's build: http://www.open-mpi.org/nightly/master/ > On Apr 30, 2015, at 12:50 AM, Satish Balay <ba...@mcs.anl.gov> wrote: > > OpenMPI developers, > > We've had issues (memory errors) with OpenMPI - and code in PETSc > library that uses MPI_Win_fence(). > > Vagrind shows memory corruption deep inside OpenMPI function stack. > > I'm attaching a potential patch that appears to fix this issue for us. > [the corresponding valgrind trace is listed in the patch header] > > Perhaps there is a more appropriate fix for this memory corruption. Could > you check on this? > > [Sorry I don't have a pure MPI test code to demonstrate this error - > but a PETSc test example code consistantly reproduces this issue] > > Thanks, > Satish<openmpi-1.8.4.patch> -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/