--- old/src/cpu/x86/vm/sharedRuntime_x86_64.cpp	2013-11-15 12:02:05.601446173 +0100
+++ new/src/cpu/x86/vm/sharedRuntime_x86_64.cpp	2013-11-15 12:02:05.431513444 +0100
@@ -3471,6 +3471,10 @@
 
   // rsp should be pointing at the return address to the caller (3)
 
+  // Pick up the initial fp we should save
+  // restore rbp before stack bang because if stack overflow is thrown it needs to be pushed (and preserved)
+  __ movptr(rbp, Address(rdi, Deoptimization::UnrollBlock::initial_info_offset_in_bytes()));
+
   // Stack bang to make sure there's enough room for these interpreter frames.
   if (UseStackBanging) {
     __ movl(rbx, Address(rdi, Deoptimization::UnrollBlock::total_frame_sizes_offset_in_bytes()));
@@ -3489,9 +3493,6 @@
   // Load counter into rdx
   __ movl(rdx, Address(rdi, Deoptimization::UnrollBlock::number_of_frames_offset_in_bytes()));
 
-  // Pick up the initial fp we should save
-  __ movptr(rbp, Address(rdi, Deoptimization::UnrollBlock::initial_info_offset_in_bytes()));
-
   // Now adjust the caller's stack to make up for the extra locals
   // but record the original sp so that we can save it in the skeletal interpreter
   // frame and the stack walking of interpreter_sender will get the unextended sp
@@ -3663,6 +3664,12 @@
 
   // rsp should be pointing at the return address to the caller (3)
 
+  // Pick up the initial fp we should save
+  // restore rbp before stack bang because if stack overflow is thrown it needs to be pushed (and preserved)
+  __ movptr(rbp,
+            Address(rdi,
+                    Deoptimization::UnrollBlock::initial_info_offset_in_bytes()));
+
   // Stack bang to make sure there's enough room for these interpreter frames.
   if (UseStackBanging) {
     __ movl(rbx, Address(rdi ,Deoptimization::UnrollBlock::total_frame_sizes_offset_in_bytes()));
@@ -3687,11 +3694,6 @@
                        Deoptimization::UnrollBlock::
                        number_of_frames_offset_in_bytes())); // (int)
 
-  // Pick up the initial fp we should save
-  __ movptr(rbp,
-            Address(rdi,
-                    Deoptimization::UnrollBlock::initial_info_offset_in_bytes()));
-
   // Now adjust the caller's stack to make up for the extra locals but
   // record the original sp so that we can save it in the skeletal
   // interpreter frame and the stack walking of interpreter_sender