--- a/src/cpu/x86/vm/sharedRuntime_x86_64.cpp	Tue Dec 17 22:37:03 2013 +0100
+++ b/src/cpu/x86/vm/sharedRuntime_x86_64.cpp	Wed Dec 18 00:00:24 2013 +0100
@@ -3542,6 +3542,10 @@
 
   // 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()));
@@ -3560,9 +3564,6 @@
   // 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
@@ -3738,6 +3739,10 @@
 
   // 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()));
@@ -3745,27 +3750,16 @@
   }
 
   // Load address of array of frame pcs into rcx (address*)
-  __ movptr(rcx,
-            Address(rdi,
-                    Deoptimization::UnrollBlock::frame_pcs_offset_in_bytes()));
+  __ movptr(rcx, Address(rdi, Deoptimization::UnrollBlock::frame_pcs_offset_in_bytes()));
 
   // Trash the return pc
   __ addptr(rsp, wordSize);
 
   // Load address of array of frame sizes into rsi (intptr_t*)
-  __ movptr(rsi, Address(rdi,
-                         Deoptimization::UnrollBlock::
-                         frame_sizes_offset_in_bytes()));
+  __ movptr(rsi, Address(rdi, Deoptimization::UnrollBlock:: frame_sizes_offset_in_bytes()));
 
   // Counter
-  __ movl(rdx, Address(rdi,
-                       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()));
+  __ movl(rdx, Address(rdi, Deoptimization::UnrollBlock:: number_of_frames_offset_in_bytes())); // (int)
 
   // 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
@@ -3775,9 +3769,7 @@
   const Register sender_sp = r8;
 
   __ mov(sender_sp, rsp);
-  __ movl(rbx, Address(rdi,
-                       Deoptimization::UnrollBlock::
-                       caller_adjustment_offset_in_bytes())); // (int)
+  __ movl(rbx, Address(rdi, Deoptimization::UnrollBlock:: caller_adjustment_offset_in_bytes())); // (int)
   __ subptr(rsp, rbx);
 
   // Push interpreter frames in a loop