diff --git openjdk.orig/jdk/src/hotspot/share/runtime/os.cpp openjdk/jdk/src/hotspot/share/runtime/os.cpp

--- openjdk.orig/src/hotspot/share/runtime/os.cpp

+++ openjdk/src/hotspot/share/runtime/os.cpp

@@ -1368,7 +1368,7 @@

 }

 void os::set_memory_serialize_page(address page) {

-  int count = log2_intptr(sizeof(class JavaThread)) - log2_int(64);

+  int count = log2_intptr((uintptr_t) sizeof(class JavaThread)) - log2_int(64);

   _mem_serialize_page = (volatile int32_t *)page;

   // We initialize the serialization page shift count here

   // We assume a cache line size of 64 bytes