[OMPI devel] locked memory consumption with openib and spawn

[Eugene Loh]

In the test suite, we have an ibm/dynamic/loop_spawn test that looks 
like this:

    for (...) {
        loop_spawn spawns loop_child
        parent and child execute MPI_Intercomm_merge
        parent and child execute MPI_Comm_free
        parent and child execute MPI_Comm_disconnect
    }
If the openib BTL is involved and you run long enough, it appears that 
you run out of locked memory.  Does anyone have a sense for whether that 
is expected or it shows a resource leak?