looking on a solution for http://www.open-mpi.org/community/lists/users/2012/10/20495.php
I noticed that the issue disappears on 1.6.2 with the patch: ---------------------------------------------------------------- --- opal/util/path.c~ 2012-04-03 16:29:52.000000000 +0200 +++ opal/util/path.c 2012-10-30 20:31:43.772749400 +0100 @@ -82,7 +82,7 @@ /* If absolute path is given, return it without searching. */ if( opal_path_is_absolute(fname) ) { - return opal_path_access(fname, "", mode); + return opal_path_access(fname, NULL , mode); } /* Initialize. */ ---------------------------------------------------------------- For what I can see on the function body, the test on path is expecting path to be a null pointer and not a pointer to an empty strings ---------------------------------------------------------------- char *opal_path_access(char *fname, char *path, int mode) { char *fullpath = NULL; struct stat buf; /* Allocate space for the full pathname. */ if (NULL == path) { fullpath = opal_os_path(false, fname, NULL); } else { fullpath = opal_os_path(false, path, fname, NULL); } if (NULL == fullpath) return NULL; ---------------------------------------------------------------- Regards Marco