diff -r 58adcb17d304 -r 6e45ffa3bccf hotspot/src/os/solaris/vm/os_solaris.cpp
--- a/hotspot/src/os/solaris/vm/os_solaris.cpp	Mon Oct 04 10:08:29 2010 -0700
+++ b/hotspot/src/os/solaris/vm/os_solaris.cpp	Thu Oct 07 08:06:06 2010 -0700
@@ -4878,18 +4878,17 @@
   // Check minimum allowable stack size for thread creation and to initialize
   // the java system classes, including StackOverflowError - depends on page
   // size.  Add a page for compiler2 recursion in main thread.
-  // Add in BytesPerWord times page size to account for VM stack during
+  // Add in 2*BytesPerWord times page size to account for VM stack during
   // class initialization depending on 32 or 64 bit VM.
-  guarantee((Solaris::min_stack_allowed >=
-    (StackYellowPages+StackRedPages+StackShadowPages+BytesPerWord
-     COMPILER2_PRESENT(+1)) * page_size),
-    "need to increase Solaris::min_stack_allowed on this platform");
+  os::Solaris::min_stack_allowed = MAX2(os::Solaris::min_stack_allowed,
+            (size_t)(StackYellowPages+StackRedPages+StackShadowPages+
+                    2*BytesPerWord COMPILER2_PRESENT(+1)) * page_size);
 
   size_t threadStackSizeInBytes = ThreadStackSize * K;
   if (threadStackSizeInBytes != 0 &&
-    threadStackSizeInBytes < Solaris::min_stack_allowed) {
+    threadStackSizeInBytes < os::Solaris::min_stack_allowed) {
     tty->print_cr("\nThe stack size specified is too small, Specify at least %dk",
-                  Solaris::min_stack_allowed/K);
+                  os::Solaris::min_stack_allowed/K);
     return JNI_ERR;
   }