From 75c86d83590e77202087068ab852b52932c489dc Mon Sep 17 00:00:00 2001
From: never <unknown>
Date: Sun, 1 Mar 2009 20:49:46 -0800
Subject: [PATCH] 6811384: MacroAssembler::serialize_memory may touch next page
 on amd64 Reviewed-by: kvn, phh, twisti

---
 src/cpu/x86/vm/assembler_x86.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/cpu/x86/vm/assembler_x86.cpp b/src/cpu/x86/vm/assembler_x86.cpp
index d6433f0e1..e36823ccd 100644
--- a/src/cpu/x86/vm/assembler_x86.cpp
+++ b/src/cpu/x86/vm/assembler_x86.cpp
@@ -6463,7 +6463,8 @@ void MacroAssembler::serialize_memory(Register thread, Register tmp) {
   Address index(noreg, tmp, Address::times_1);
   ExternalAddress page(os::get_memory_serialize_page());
 
-  movptr(ArrayAddress(page, index), tmp);
+  // Size of store must match masking code above
+  movl(as_Address(ArrayAddress(page, index)), tmp);
 }
 
 // Calls to C land
-- 
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