6811384: MacroAssembler::serialize_memory may touch next page on amd64

Reviewed-by: kvn, phh, twisti
2009-03-01 20:49:46 -08:00 · 2009-03-01 20:49:46 -08:00 · 48d4a43c2a
commit 48d4a43c2a
parent 05d1de7727
1 changed files with 2 additions and 1 deletions
--- a/hotspot/src/cpu/x86/vm/assembler_x86.cpp
+++ b/hotspot/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