--- openjdk/hotspot/src/os/linux/vm/os_linux.cpp    Wed Oct 23 15:44:12 2013 -0700

+++ openjdk/hotspot/src/os/linux/vm/os_linux.cpp    Thu Dec 19 16:03:33 2013 +0000

@@ -4797,9 +4797,19 @@ 

   // size.  Add a page for compiler2 recursion in main thread.

   // Add in 2*BytesPerWord times page size to account for VM stack during

   // class initialization depending on 32 or 64 bit VM.

+

+

   os::Linux::min_stack_allowed = MAX2(os::Linux::min_stack_allowed,

             (size_t)(StackYellowPages+StackRedPages+StackShadowPages) * Linux::page_size() +

-                    (2*BytesPerWord COMPILER2_PRESENT(+1)) * Linux::vm_default_page_size());

+                    (2*BytesPerWord COMPILER2_PRESENT(+1)) 

+                       * 

+#ifdef PPC

+                      NOT_ZERO ( Linux::vm_default_page_size() ) 

+                       ZERO_ONLY ( Linux::page_size() )

+#else                   

+                       ( Linux::vm_default_page_size() )

+#endif

+                     );

   size_t threadStackSizeInBytes = ThreadStackSize * K;

   if (threadStackSizeInBytes != 0 &&

​