--- Python-3.0.1.orig/Modules/mmapmodule.c	2009-02-02 21:41:29.000000000 +0100
+++ Python-3.0.1/Modules/mmapmodule.c	2009-03-01 22:01:38.000000000 +0100
@@ -509,7 +509,11 @@
 #ifdef MREMAP_MAYMOVE
 		newmap = mremap(self->data, self->size, new_size, MREMAP_MAYMOVE);
 #else
-		newmap = mremap(self->data, self->size, new_size, 0);
+#if defined(__NetBSD__)
+                newmap = mremap(self->data, self->size, self->data, new_size, 0);
+#else
+                newmap = mremap(self->data, self->size, new_size, 0);
+#endif /* __NetBSD__ */
 #endif
 		if (newmap == (void *)-1)
 		{