diff --git a/ompi/mca/coll/portals4/coll_portals4_allreduce.c b/ompi/mca/coll/portals4/coll_portals4_allreduce.c
index 935ce6cd9d3..ec94c428175 100644
--- a/ompi/mca/coll/portals4/coll_portals4_allreduce.c
+++ b/ompi/mca/coll/portals4/coll_portals4_allreduce.c
@@ -343,15 +343,38 @@ allreduce_kary_tree_top(const void *sendbuf, void *recvbuf, int count,
 static int
 allreduce_kary_tree_bottom(ompi_coll_portals4_request_t *request)
 {
+    int ret;
+
     if (request->u.allreduce.is_optim) {
         PtlAtomicSync();
 
         if (request->u.allreduce.child_nb) {
-            PtlCTFree(request->u.allreduce.ack_ct_h);
+            ret = PtlCTFree(request->u.allreduce.ack_ct_h);
+            if (PTL_OK != ret) {
+                opal_output_verbose(1, ompi_coll_base_framework.framework_output,
+                        "%s:%d: PtlCTFree failed: %d\n",
+                        __FILE__, __LINE__, ret);
+                return OMPI_ERROR;
+            }
         }
 
-        PtlMEUnlink(request->u.allreduce.data_me_h);
-        PtlCTFree(request->u.allreduce.trig_ct_h);
+        do {
+            ret = PtlMEUnlink(request->u.allreduce.data_me_h);
+        } while (PTL_IN_USE == ret);
+        if (PTL_OK != ret) {
+            opal_output_verbose(1, ompi_coll_base_framework.framework_output,
+                    "%s:%d: PtlMEUnlink failed: %d\n",
+                    __FILE__, __LINE__, ret);
+            return OMPI_ERROR;
+        }
+
+        ret = PtlCTFree(request->u.allreduce.trig_ct_h);
+        if (PTL_OK != ret) {
+            opal_output_verbose(1, ompi_coll_base_framework.framework_output,
+                    "%s:%d: PtlCTFree failed: %d\n",
+                    __FILE__, __LINE__, ret);
+            return OMPI_ERROR;
+        }
     }
 
     return (OMPI_SUCCESS);
diff --git a/ompi/mca/coll/portals4/coll_portals4_barrier.c b/ompi/mca/coll/portals4/coll_portals4_barrier.c
index 9d5c4f3c164..58294dedf4b 100644
--- a/ompi/mca/coll/portals4/coll_portals4_barrier.c
+++ b/ompi/mca/coll/portals4/coll_portals4_barrier.c
@@ -206,7 +206,9 @@ barrier_hypercube_bottom(ompi_coll_portals4_request_t *request)
     int ret;
 
     /* cleanup */
-    ret = PtlMEUnlink(request->u.barrier.data_me_h);
+    do {
+        ret = PtlMEUnlink(request->u.barrier.data_me_h);
+    } while (PTL_IN_USE == ret);
     if (PTL_OK != ret) {
         opal_output_verbose(1, ompi_coll_base_framework.framework_output,
                 "%s:%d: PtlMEUnlink failed: %d\n",
diff --git a/ompi/mca/coll/portals4/coll_portals4_component.c b/ompi/mca/coll/portals4/coll_portals4_component.c
index 1be495861c0..d632340ee26 100644
--- a/ompi/mca/coll/portals4/coll_portals4_component.c
+++ b/ompi/mca/coll/portals4/coll_portals4_component.c
@@ -285,7 +285,9 @@ portals4_close(void)
     mca_coll_portals4_component.data_md_h = PTL_INVALID_HANDLE;
 
     if (!PtlHandleIsEqual(mca_coll_portals4_component.finish_me_h, PTL_INVALID_HANDLE)) {
-        ret = PtlMEUnlink(mca_coll_portals4_component.finish_me_h);
+        do {
+            ret = PtlMEUnlink(mca_coll_portals4_component.finish_me_h);
+        } while (PTL_IN_USE == ret);
         if (PTL_OK != ret) {
             opal_output_verbose(1, ompi_coll_base_framework.framework_output,
                     "%s:%d: PtlMEUnlink failed: %d\n",
@@ -293,7 +295,9 @@ portals4_close(void)
         }
     }
     if (!PtlHandleIsEqual(mca_coll_portals4_component.unex_me_h, PTL_INVALID_HANDLE)) {
-        ret = PtlMEUnlink(mca_coll_portals4_component.unex_me_h);
+        do {
+            ret = PtlMEUnlink(mca_coll_portals4_component.unex_me_h);
+        } while (PTL_IN_USE == ret);
         if (PTL_OK != ret) {
             opal_output_verbose(1, ompi_coll_base_framework.framework_output,
                     "%s:%d: PtlMEUnlink failed: %d\n",
diff --git a/ompi/mca/coll/portals4/coll_portals4_gather.c b/ompi/mca/coll/portals4/coll_portals4_gather.c
index 45ff4c07728..5bd60b7613e 100644
--- a/ompi/mca/coll/portals4/coll_portals4_gather.c
+++ b/ompi/mca/coll/portals4/coll_portals4_gather.c
@@ -460,7 +460,9 @@ cleanup_gather_handles(ompi_coll_portals4_request_t *request)
     /**********************************/
     /* Cleanup Gather Handles             */
     /**********************************/
-    ret = PtlMEUnlink(request->u.gather.gather_meh);
+    do {
+        ret = PtlMEUnlink(request->u.gather.gather_meh);
+    } while (PTL_IN_USE == ret);
     if (PTL_OK != ret) { ret = OMPI_ERROR; line = __LINE__; goto err_hdlr; }
 
     ret = PtlCTFree(request->u.gather.gather_cth);
@@ -484,7 +486,9 @@ cleanup_sync_handles(ompi_coll_portals4_request_t *request)
     /**********************************/
     /* Cleanup Sync Handles             */
     /**********************************/
-    ret = PtlMEUnlink(request->u.gather.sync_meh);
+    do {
+        ret = PtlMEUnlink(request->u.gather.sync_meh);
+    } while (PTL_IN_USE == ret);
     if (PTL_OK != ret) { ret = OMPI_ERROR; line = __LINE__; goto err_hdlr; }
 
     ret = PtlCTFree(request->u.gather.sync_cth);
diff --git a/ompi/mca/coll/portals4/coll_portals4_reduce.c b/ompi/mca/coll/portals4/coll_portals4_reduce.c
index 1a55a5c3f70..e9b6b159a94 100644
--- a/ompi/mca/coll/portals4/coll_portals4_reduce.c
+++ b/ompi/mca/coll/portals4/coll_portals4_reduce.c
@@ -340,24 +340,38 @@ reduce_kary_tree_top(const void *sendbuf, void *recvbuf, int count,
 static int
 reduce_kary_tree_bottom(ompi_coll_portals4_request_t *request)
 {
+    int ret, line;
+
     if (request->u.reduce.is_optim) {
         PtlAtomicSync();
 
         if (request->u.reduce.use_ack_ct_h) {
-            PtlCTFree(request->u.reduce.ack_ct_h);
+            ret = PtlCTFree(request->u.reduce.ack_ct_h);
+            if (PTL_OK != ret) { ret = OMPI_ERROR; line = __LINE__; goto err_hdlr; }
         }
 
         if (request->u.reduce.child_nb) {
-            PtlMEUnlink(request->u.reduce.data_me_h);
+            do {
+                ret = PtlMEUnlink(request->u.reduce.data_me_h);
+            } while (PTL_IN_USE == ret);
+            if (PTL_OK != ret) { ret = OMPI_ERROR; line = __LINE__; goto err_hdlr; }
         }
 
-        PtlCTFree(request->u.reduce.trig_ct_h);
+        ret = PtlCTFree(request->u.reduce.trig_ct_h);
+        if (PTL_OK != ret) { ret = OMPI_ERROR; line = __LINE__; goto err_hdlr; }
 
         if (request->u.reduce.free_buffer) {
             free(request->u.reduce.free_buffer);
         }
     }
     return (OMPI_SUCCESS);
+
+err_hdlr:
+    opal_output(ompi_coll_base_framework.framework_output,
+                "%s:%4d:%4d\tError occurred ret=%d",
+                __FILE__, __LINE__, line, ret);
+
+    return ret;
 }
 
 
diff --git a/ompi/mca/coll/portals4/coll_portals4_scatter.c b/ompi/mca/coll/portals4/coll_portals4_scatter.c
index d1cfbbaa0d2..94262c13598 100644
--- a/ompi/mca/coll/portals4/coll_portals4_scatter.c
+++ b/ompi/mca/coll/portals4/coll_portals4_scatter.c
@@ -253,14 +253,8 @@ cleanup_scatter_handles(ompi_coll_portals4_request_t *request)
     /**********************************/
     do {
         ret = PtlMEUnlink(request->u.scatter.scatter_meh);
-        if (PTL_IN_USE == ret) {
-            opal_output(ompi_coll_base_framework.framework_output,
-                        "%s:%4d: scatter_meh still in use (ret=%d, rank %2d)",
-                        __FILE__, __LINE__, ret, request->u.scatter.my_rank);
-            continue;
-        }
-        if (PTL_OK != ret) { ret = OMPI_ERROR; line = __LINE__; goto err_hdlr; }
-    } while (ret == PTL_IN_USE);
+    } while (PTL_IN_USE == ret);
+    if (PTL_OK != ret) { ret = OMPI_ERROR; line = __LINE__; goto err_hdlr; }
 
     ret = PtlCTFree(request->u.scatter.scatter_cth);
     if (PTL_OK != ret) { ret = OMPI_ERROR; line = __LINE__; goto err_hdlr; }
@@ -292,14 +286,8 @@ cleanup_sync_handles(ompi_coll_portals4_request_t *request)
     /**********************************/
     do {
         ret = PtlMEUnlink(request->u.scatter.sync_meh);
-        if (PTL_IN_USE == ret) {
-            opal_output(ompi_coll_base_framework.framework_output,
-                        "%s:%4d: sync_meh still in use (ret=%d, rank %2d)",
-                        __FILE__, __LINE__, ret, request->u.scatter.my_rank);
-            continue;
-        }
-        if (PTL_OK != ret) { ret = OMPI_ERROR; line = __LINE__; goto err_hdlr; }
-    } while (ret == PTL_IN_USE);
+    } while (PTL_IN_USE == ret);
+    if (PTL_OK != ret) { ptl_ret = ret; ret = OMPI_ERROR; line = __LINE__; goto err_hdlr; }
 
     ret = PtlCTFree(request->u.scatter.sync_cth);
     if (PTL_OK != ret) { ptl_ret = ret; ret = OMPI_ERROR; line = __LINE__; goto err_hdlr; }