| Index: src/objects.cc | 
| diff --git a/src/objects.cc b/src/objects.cc | 
| index 844e86327e0c4ad9f2fa4b5a7ba5bab81871cfdd..98009e6548b3c63e771c3512e22ac99b5aa12501 100644 | 
| --- a/src/objects.cc | 
| +++ b/src/objects.cc | 
| @@ -13982,8 +13982,6 @@ void Code::Relocate(intptr_t delta) { | 
|  | 
|  | 
| void Code::CopyFrom(const CodeDesc& desc) { | 
| -  DCHECK(Marking::Color(this) == Marking::WHITE_OBJECT); | 
| - | 
| // copy code | 
| CopyBytes(instruction_start(), desc.buffer, | 
| static_cast<size_t>(desc.instr_size)); | 
| @@ -14007,21 +14005,22 @@ void Code::CopyFrom(const CodeDesc& desc) { | 
| RelocInfo::Mode mode = it.rinfo()->rmode(); | 
| if (mode == RelocInfo::EMBEDDED_OBJECT) { | 
| Handle<Object> p = it.rinfo()->target_object_handle(origin); | 
| -      it.rinfo()->set_target_object(*p, SKIP_WRITE_BARRIER, SKIP_ICACHE_FLUSH); | 
| +      it.rinfo()->set_target_object(*p, UPDATE_WRITE_BARRIER, | 
| +                                    SKIP_ICACHE_FLUSH); | 
| } else if (mode == RelocInfo::CELL) { | 
| Handle<Cell> cell  = it.rinfo()->target_cell_handle(); | 
| -      it.rinfo()->set_target_cell(*cell, SKIP_WRITE_BARRIER, SKIP_ICACHE_FLUSH); | 
| +      it.rinfo()->set_target_cell(*cell, UPDATE_WRITE_BARRIER, | 
| +                                  SKIP_ICACHE_FLUSH); | 
| } else if (RelocInfo::IsCodeTarget(mode)) { | 
| // rewrite code handles in inline cache targets to direct | 
| // pointers to the first instruction in the code object | 
| Handle<Object> p = it.rinfo()->target_object_handle(origin); | 
| Code* code = Code::cast(*p); | 
| it.rinfo()->set_target_address(code->instruction_start(), | 
| -                                     SKIP_WRITE_BARRIER, | 
| -                                     SKIP_ICACHE_FLUSH); | 
| +                                     UPDATE_WRITE_BARRIER, SKIP_ICACHE_FLUSH); | 
| } else if (RelocInfo::IsRuntimeEntry(mode)) { | 
| Address p = it.rinfo()->target_runtime_entry(origin); | 
| -      it.rinfo()->set_target_runtime_entry(p, SKIP_WRITE_BARRIER, | 
| +      it.rinfo()->set_target_runtime_entry(p, UPDATE_WRITE_BARRIER, | 
| SKIP_ICACHE_FLUSH); | 
| } else if (mode == RelocInfo::CODE_AGE_SEQUENCE) { | 
| Handle<Object> p = it.rinfo()->code_age_stub_handle(origin); | 
|  |