| Index: src/flag-definitions.h | 
| diff --git a/src/flag-definitions.h b/src/flag-definitions.h | 
| index cb12c253935a259699aedb9898bbb294891f3a20..72356e7f45a0f1b0eefde991ea0b528a91d72554 100644 | 
| --- a/src/flag-definitions.h | 
| +++ b/src/flag-definitions.h | 
| @@ -690,7 +690,7 @@ | 
| "at most try this many times to finalize incremental marking") | 
| DEFINE_BOOL(concurrent_sweeping, true, "use concurrent sweeping") | 
| DEFINE_BOOL(parallel_compaction, true, "use parallel compaction") | 
| -DEFINE_BOOL(parallel_pointer_update, true, | 
| +DEFINE_BOOL(parallel_pointer_update, false, | 
| "use parallel pointer update during compaction") | 
| DEFINE_BOOL(trace_incremental_marking, false, | 
| "trace progress of the incremental marking") | 
|  |