diff --git a/[refs] b/[refs]
index 36e18082e5ba..7b59c61bd339 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9611dc7a8de8a5c6244886dad020995b1a896236
+refs/heads/master: 20bf062c6575e162ede00308ca3a5714ca112009
diff --git a/trunk/arch/x86/mm/memtest.c b/trunk/arch/x86/mm/memtest.c
index c80b9fb95734..8dabbed409ee 100644
--- a/trunk/arch/x86/mm/memtest.c
+++ b/trunk/arch/x86/mm/memtest.c
@@ -9,6 +9,7 @@
 #include <linux/memblock.h>
 
 static u64 patterns[] __initdata = {
+	/* The first entry has to be 0 to leave memtest with zeroed memory */
 	0,
 	0xffffffffffffffffULL,
 	0x5555555555555555ULL,
@@ -110,15 +111,8 @@ void __init early_memtest(unsigned long start, unsigned long end)
 		return;
 
 	printk(KERN_INFO "early_memtest: # of tests: %d\n", memtest_pattern);
-	for (i = 0; i < memtest_pattern; i++) {
+	for (i = memtest_pattern-1; i < UINT_MAX; --i) {
 		idx = i % ARRAY_SIZE(patterns);
 		do_one_pass(patterns[idx], start, end);
 	}
-
-	if (idx > 0) {
-		printk(KERN_INFO "early_memtest: wipe out "
-		       "test pattern from memory\n");
-		/* additional test with pattern 0 will do this */
-		do_one_pass(0, start, end);
-	}
 }