diff --git a/kernel/devobj.c b/kernel/devobj.c
index f371ec58..e4dad383 100644
--- a/kernel/devobj.c
+++ b/kernel/devobj.c
@@ -181,19 +181,21 @@ static void devobj_release(struct memobj *memobj)
 	memobj_unlock(&obj->memobj);
 
 	if (free_obj) {
-		int error;
-		ihk_mc_user_context_t ctx;
+		if (!(free_obj->memobj.flags & MF_HOST_RELEASED)) {
+			int error;
+			ihk_mc_user_context_t ctx;
 
-		ihk_mc_syscall_arg0(&ctx) = PAGER_REQ_UNMAP;
-		ihk_mc_syscall_arg1(&ctx) = handle;
-		ihk_mc_syscall_arg2(&ctx) = 1;
+			ihk_mc_syscall_arg0(&ctx) = PAGER_REQ_UNMAP;
+			ihk_mc_syscall_arg1(&ctx) = handle;
+			ihk_mc_syscall_arg2(&ctx) = 1;
 
-		error = syscall_generic_forwarding(__NR_mmap, &ctx);
-		if (error) {
-			kprintf("devobj_release(%p %lx):"
-					"release failed. %d\n",
-					free_obj, handle, error);
-			/* through */
+			error = syscall_generic_forwarding(__NR_mmap, &ctx);
+			if (error) {
+				kprintf("devobj_release(%p %lx):"
+						"release failed. %d\n",
+						free_obj, handle, error);
+				/* through */
+			}
 		}
 
 		if (obj->pfn_table) {
diff --git a/kernel/fileobj.c b/kernel/fileobj.c
index 08a2d877..70f11efb 100644
--- a/kernel/fileobj.c
+++ b/kernel/fileobj.c
@@ -294,6 +294,9 @@ static void fileobj_release(struct memobj *memobj)
 	obj->sref -= free_sref;
 	free_handle = obj->handle;
 	memobj_unlock(&obj->memobj);
+	if (obj->memobj.flags & MF_HOST_RELEASED) {
+		free_sref = 0; // don't call syscall_generic_forwarding
+	}
 
 	if (free_obj) {
 		dkprintf("%s: release obj 0x%lx cref: %d, free_obj: 0x%lx, %s\n",
diff --git a/kernel/include/memobj.h b/kernel/include/memobj.h
index ba23678c..24650de4 100644
--- a/kernel/include/memobj.h
+++ b/kernel/include/memobj.h
@@ -36,6 +36,7 @@ enum {
 	MF_ZEROFILL = 0x0010,
 	MF_REG_FILE = 0x1000,
 	MF_DEV_FILE = 0x2000,
+	MF_HOST_RELEASED = 0x80000000,
 	MF_END
 };
 
diff --git a/kernel/process.c b/kernel/process.c
index f390fe23..7607b8d5 100644
--- a/kernel/process.c
+++ b/kernel/process.c
@@ -2186,6 +2186,9 @@ free_all_process_memory_range(struct process_vm *vm)
 
 	ihk_mc_spinlock_lock_noirq(&vm->memory_range_lock);
 	list_for_each_entry_safe(range, next, &vm->vm_range_list, list) {
+		if (range->memobj) {
+			range->memobj->flags |= MF_HOST_RELEASED;
+		}
 		error = free_process_memory_range(vm, range);
 		if (error) {
 			ekprintf("free_process_memory(%p):"