--- vmem_mmap.c.orig	2014-10-06 15:04:33.000000000 -0400
+++ vmem_mmap.c	2014-10-06 15:08:36.000000000 -0400
@@ -48,7 +48,7 @@
 #define	FREE_PROT	PROT_NONE
 
 #define	ALLOC_FLAGS	MAP_PRIVATE | MAP_ANON
-#define	FREE_FLAGS	MAP_PRIVATE | MAP_ANON | MAP_NORESERVE
+#define	FREE_FLAGS	MAP_PRIVATE | MAP_ANON
 
 #ifdef MAP_ALIGN
 #define	CHUNKSIZE	(64*1024)	/* 64 kilobytes */