diff -dwup3 -x *svn* -r c:\dev\openib\ofw\gen1\branches\mlx4_30\trunk\hw\mlx4\kernel\l2w\l2w_umem.c .\hw\mlx4\kernel\l2w\l2w_umem.c
--- c:\dev\openib\ofw\gen1\branches\mlx4_30\trunk\hw\mlx4\kernel\l2w\l2w_umem.c	Thu Mar 29 00:15:27 2012
+++ .\hw\mlx4\kernel\l2w\l2w_umem.c	Thu May 24 13:05:42 2012
@@ -152,7 +152,7 @@ int ib_umem_map(
 	}
 
 	*kva = (volatile u32 *)MmMapLockedPagesSpecifyCache( p_mdl, 
-		KernelMode, MmNonCached, NULL, FALSE, NormalPagePriority );
+		KernelMode, MmCached, NULL, FALSE, NormalPagePriority );
 	if (*kva == NULL) {
 		L2W_PRINT(TRACE_LEVEL_ERROR ,L2W ,"MmMapLockedPagesSpecifyCache failed\n");
 		rc = -EFAULT;