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| author | Ben Gamari <ben@smart-cactus.org> | 2022-12-04 16:18:47 -0500 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2023-03-08 15:02:30 -0500 |
| commit | bd9cd84bbbb51f21c7b2b478e1f5971e2659b9fd (patch) | |
| tree | e25e5e5338a04bd3ced0b85cab0c8e2ec12ff80f | |
| parent | 532262b95b2eaa685a22279a8e54cc2e379e21ef (diff) | |
| download | haskell-bd9cd84bbbb51f21c7b2b478e1f5971e2659b9fd.tar.gz | |
nonmoving: Add missing no-op in busy-wait loop
| -rw-r--r-- | rts/sm/NonMovingMark.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/rts/sm/NonMovingMark.c b/rts/sm/NonMovingMark.c index a6ce3678bc..e4c1c57d36 100644 --- a/rts/sm/NonMovingMark.c +++ b/rts/sm/NonMovingMark.c @@ -1310,8 +1310,11 @@ mark_closure (MarkQueue *queue, const StgClosure *p0, StgClosure **origin) goto done; case WHITEHOLE: - while (*(StgInfoTable* volatile*) &p->header.info == &stg_WHITEHOLE_info); - // busy_wait_nop(); // FIXME + while (*(StgInfoTable* volatile*) &p->header.info == &stg_WHITEHOLE_info) +#if defined(PARALLEL_GC) + busy_wait_nop() +#endif + ; goto try_again; default: |