diff -r 12d91eb0f579 -r 3b3d12e645e7 src/os/solaris/vm/os_solaris.cpp
--- a/src/os/solaris/vm/os_solaris.cpp	Thu Mar 11 14:41:29 2010 -0500
+++ b/src/os/solaris/vm/os_solaris.cpp	Fri Mar 12 10:42:16 2010 -0500
@@ -2698,6 +2698,14 @@
   }
 }
 
+bool os::create_stack_guard_pages(char* addr, size_t size) {
+  return os::commit_memory(addr, size);
+}
+
+bool os::remove_stack_guard_pages(char* addr, size_t size) {
+  return os::uncommit_memory(addr, size);
+}
+
 // Change the page size in a given range.
 void os::realign_memory(char *addr, size_t bytes, size_t alignment_hint) {
   assert((intptr_t)addr % alignment_hint == 0, "Address should be aligned.");