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diff src/share/vm/runtime/os.cpp @ 477:24fda36852ce

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6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE Summary: Make reguard_stack change access to RW, not execute and use os::protect_memory with the new parameter when change needed to X. Reviewed-by: acorn, jcoomes
author coleenp
date Wed, 10 Dec 2008 15:14:29 -0800
parents d95b224e9f17
children 773234c55e8c
line wrap: on
line diff
--- a/src/share/vm/runtime/os.cpp	Tue Dec 09 09:55:39 2008 -0500
+++ b/src/share/vm/runtime/os.cpp	Wed Dec 10 15:14:29 2008 -0800
@@ -932,8 +932,9 @@
   // the mutator thread if such case is encountered. See bug 6546278 for details.
   Thread::muxAcquire(&SerializePageLock, "serialize_thread_states");
   os::protect_memory((char *)os::get_memory_serialize_page(),
-                     os::vm_page_size(), MEM_PROT_READ, /*is_committed*/true );
-  os::unguard_memory((char *)os::get_memory_serialize_page(), os::vm_page_size());
+                     os::vm_page_size(), MEM_PROT_READ);
+  os::protect_memory((char *)os::get_memory_serialize_page(),
+                     os::vm_page_size(), MEM_PROT_RW);
   Thread::muxRelease(&SerializePageLock);
 }