File _service:extract_file:winptr.patch of Package mvapich2-gnu8

--- a/src/mpid/ch3/src/mpid_rma.c	2019-08-08 18:26:25.000000000 -0500
+++ b/src/mpid/ch3/src/mpid_rma.c	2019-11-05 19:15:49.000000000 -0600
@@ -289,6 +289,7 @@
 
 #ifdef _OSU_MVAPICH_	
     win_comm_ptr = comm_ptr;
+    MPIR_Comm_add_ref(win_comm_ptr);
 #else
     mpi_errno = MPIR_Comm_dup_impl(comm_ptr, &win_comm_ptr);
     if (mpi_errno)
--- a/src/mpid/ch3/src/mpidi_rma.c	2019-11-05 19:16:00.000000000 -0600
+++ b/src/mpid/ch3/src/mpidi_rma.c	2019-11-05 19:18:10.000000000 -0600
@@ -147,7 +147,7 @@
 {
     int mpi_errno = MPI_SUCCESS;
     int in_use;
-    MPID_Comm *comm_ptr;
+    MPID_Comm *comm_ptr = (*win_ptr)->comm_ptr;
     MPIR_Errflag_t errflag = MPIR_ERR_NONE;
     MPIDI_STATE_DECL(MPID_STATE_MPID_WIN_FREE);
 
@@ -178,7 +178,7 @@
             MPIR_ERR_POP(mpi_errno);
     }
 
-    mpi_errno = MPIR_Barrier_impl((*win_ptr)->comm_ptr, &errflag);
+    mpi_errno = MPIR_Barrier_impl(comm_ptr, &errflag);
     if (mpi_errno)
         MPIR_ERR_POP(mpi_errno);
 
@@ -211,12 +211,11 @@
     MPIU_Free((*win_ptr)->rank_mapping);
 #endif /* CHANNEL_PSM */
 
-#ifndef _OSU_MVAPICH_
-    comm_ptr = (*win_ptr)->comm_ptr;
     mpi_errno = MPIR_Comm_free_impl(comm_ptr);
     if (mpi_errno)
         MPIR_ERR_POP(mpi_errno);
-#endif
+
+    (*win_ptr)->comm_ptr = NULL;
 
     if ((*win_ptr)->basic_info_table != NULL)
         MPIU_Free((*win_ptr)->basic_info_table);