--- a/hotspot/src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp	Thu Jan 19 13:00:11 2012 -0800
+++ b/hotspot/src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp	Thu Jan 19 17:20:39 2012 -0800
@@ -391,7 +391,7 @@
   __ call(Runtime1::entry_for(Runtime1::handle_exception_from_callee_id), relocInfo::runtime_call_type);
   __ delayed()->nop();
   __ should_not_reach_here();
-  assert(code_offset() - offset <= exception_handler_size, "overflow");
+  guarantee(code_offset() - offset <= exception_handler_size, "overflow");
   __ end_a_stub();
 
   return offset;
@@ -474,8 +474,7 @@
   AddressLiteral deopt_blob(SharedRuntime::deopt_blob()->unpack());
   __ JUMP(deopt_blob, G3_scratch, 0); // sethi;jmp
   __ delayed()->nop();
-  assert(code_offset() - offset <= deopt_handler_size, "overflow");
-  debug_only(__ stop("should have gone to the caller");)
+  guarantee(code_offset() - offset <= deopt_handler_size, "overflow");
   __ end_a_stub();
 
   return offset;

--- a/hotspot/src/cpu/sparc/vm/c1_LIRAssembler_sparc.hpp	Thu Jan 19 13:00:11 2012 -0800
+++ b/hotspot/src/cpu/sparc/vm/c1_LIRAssembler_sparc.hpp	Thu Jan 19 17:20:39 2012 -0800
@@ -69,7 +69,7 @@
 #else
          call_stub_size = 20,
 #endif // _LP64
-         exception_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(10*4),
-         deopt_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(10*4) };
+         exception_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(128),
+         deopt_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(64)  };
 
 #endif // CPU_SPARC_VM_C1_LIRASSEMBLER_SPARC_HPP

--- a/hotspot/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp	Thu Jan 19 13:00:11 2012 -0800
+++ b/hotspot/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp	Thu Jan 19 17:20:39 2012 -0800
@@ -406,7 +406,7 @@
   // search an exception handler (rax: exception oop, rdx: throwing pc)
   __ call(RuntimeAddress(Runtime1::entry_for(Runtime1::handle_exception_from_callee_id)));
   __ should_not_reach_here();
-  assert(code_offset() - offset <= exception_handler_size, "overflow");
+  guarantee(code_offset() - offset <= exception_handler_size, "overflow");
   __ end_a_stub();
 
   return offset;
@@ -490,8 +490,7 @@
 
   __ pushptr(here.addr());
   __ jump(RuntimeAddress(SharedRuntime::deopt_blob()->unpack()));
-
-  assert(code_offset() - offset <= deopt_handler_size, "overflow");
+  guarantee(code_offset() - offset <= deopt_handler_size, "overflow");
   __ end_a_stub();
 
   return offset;