diff --git a/src/mca/ptl/sm/src/ptl_sm.c b/src/mca/ptl/sm/src/ptl_sm.c
index 16836333c7..ae98d8379d 100644
--- a/src/mca/ptl/sm/src/ptl_sm.c
+++ b/src/mca/ptl/sm/src/ptl_sm.c
@@ -165,22 +165,38 @@ int mca_ptl_sm_add_procs(
      * data structure.  This will reside in shared memory */
 
     /* Create backing file */
-    memset(&(file_name[0]),0,PATH_MAX);
-    if( (strlen(ompi_process_info.job_session_dir) +
+    len=strlen(ompi_process_info.job_session_dir) +
             strlen(ompi_system_info.nodename)+
             /* length of fixed-string name part */
-            23 ) >= PATH_MAX ) {
-            ompi_output(0, "mca_ptl_sm_add_procs: name of backing file too long \n");
+            23;
+    memset(&(file_name[0]),0,PATH_MAX);
+    if( PATH_MAX <= len ) {
+            ompi_output(0, "mca_ptl_sm_add_procs: name of backing file too long %ld \n",
+                    len);
             return_code=OMPI_ERROR;
             goto CLEANUP;
     }
-    sprintf(&(file_name[0]),"%s/shared_mem_ptl_module.%s",
+    mca_ptl_sm_component.sm_resouce_ctl_file= (char *)
+        malloc(len+1);
+    if( NULL == mca_ptl_sm_component.sm_resouce_ctl_file ){
+        return_code=OMPI_ERR_OUT_OF_RESOURCE;
+        goto CLEANUP;
+    }
+    memset(mca_ptl_sm_component.sm_resouce_ctl_file,0,len+1);
+    sprintf(mca_ptl_sm_component.sm_resouce_ctl_file,
+            "%s/shared_mem_ptl_module.%s",
             ompi_process_info.job_session_dir,
             ompi_system_info.nodename);
     size=sizeof(mca_ptl_sm_module_resource_t);
+    /* debug */
+    fprintf(stderr," AAA %s \n",
+            mca_ptl_sm_component.sm_resouce_ctl_file);
+    fflush(stderr);
+    /* end debug */
     if(NULL == 
-            (mca_common_sm_mmap = 
-             mca_common_sm_mmap_init(size, &(file_name[0]),
+            (mca_ptl_sm_component.resource_ctl = 
+             mca_common_sm_mmap_init(size,
+                 mca_ptl_sm_component.sm_resouce_ctl_file,
                  sizeof(mca_ptl_sm_module_resource_t), 8 ))) 
     {
         ompi_output(0, "mca_ptl_sm_add_procs: unable to create shared memory PTL coordinating strucure\n");
diff --git a/src/mca/ptl/sm/src/ptl_sm.h b/src/mca/ptl/sm/src/ptl_sm.h
index 8298ee4154..4e46659597 100644
--- a/src/mca/ptl/sm/src/ptl_sm.h
+++ b/src/mca/ptl/sm/src/ptl_sm.h
@@ -38,6 +38,11 @@ struct mca_ptl_sm_component_t {
     char* sm_mpool_name;                  /**< name of shared memory pool module */
     mca_mpool_base_module_t* sm_mpool; /**< shared memory pool */
     void* sm_mpool_base;                  /**< base address of shared memory pool */
+    char* sm_resouce_ctl_file;     /**< name of shared memory file used 
+                                            to coordinate resource usage */
+    mca_ptl_sm_module_resource_t *resource_ctl;
+                                          /**< shared memory coordination data.
+                                            Resides in shared memory */
     ompi_free_list_t sm_send_requests;    /**< free list of sm send requests -- sendreq + sendfrag */
     ompi_free_list_t sm_send_frags;       /**< free list of sm send fragments */
     ompi_free_list_t sm_recv_frags;       /**< free list of sm recv fragments */