Cherry-pick from:

--------------------------
|From 2977194 Mon Sep 17 00:00:00 2001
|From: Ralph Castain <[email protected]>
|Date: Tue, 15 Nov 2016 19:27:26 -0700
|Subject: [PATCH] Fix debugger attach and cospawn of debugger daemons for the
| STAT debugger. Add ability to test the support minus the actual debugger.
|
|Fixes open-mpi#2411
|
|Signed-off-by: Ralph Castain <[email protected]>
|---

(cherry picked from commit 5cb312a425d55bf2e1e343d9d9c3c35fa428128a)

Author: gpaulsen

orte/mca/schizo/base/schizo_base_stubs.c

@@ -114,6 +114,11 @@ int orte_schizo_base_setup_fork(orte_job_t *jdata,
     int rc;
     orte_schizo_base_active_module_t *mod;
 
+    /* if no personality was specified, then nothing to do */
+    if (NULL == jdata->personality) {
+        return ORTE_SUCCESS;
+    }
+
     OPAL_LIST_FOREACH(mod, &orte_schizo_base.active_modules, orte_schizo_base_active_module_t) {
         if (NULL != mod->module->setup_fork) {
             rc = mod->module->setup_fork(jdata, context);
@@ -167,6 +172,11 @@ int orte_schizo_base_get_remaining_time(uint32_t *timeleft)
     int rc;
     orte_schizo_base_active_module_t *mod;
 
+    /* if no personality was specified, then nothing to do */
+    if (NULL == jdata->personality) {
+        return ORTE_SUCCESS;
+    }
+
     OPAL_LIST_FOREACH(mod, &orte_schizo_base.active_modules, orte_schizo_base_active_module_t) {
         if (NULL != mod->module->get_remaining_time) {
             rc = mod->module->get_remaining_time(timeleft);