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author | GHC GitLab CI <ghc-ci@gitlab-haskell.org> | 2020-12-10 03:55:51 +0000 |
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committer | Ben Gamari <ben@smart-cactus.org> | 2020-12-31 15:52:34 -0500 |
commit | 5b62aa0d252bf7030230b0e81c5025253faef5f1 (patch) | |
tree | dcb585039d1fac1a52bd85ea2039d33fcb56c947 | |
parent | 191a9d82fe462ae45dc2b13f89fa6a8a3dbfa9ff (diff) | |
download | haskell-5b62aa0d252bf7030230b0e81c5025253faef5f1.tar.gz |
nonmoving: Add comments to nonmovingResurrectThreads
(cherry picked from commit 65b702f131a0629a4ff8440754bd1a17f9860e54)
-rw-r--r-- | rts/sm/NonMovingMark.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/rts/sm/NonMovingMark.c b/rts/sm/NonMovingMark.c index f6272282a8..658d743ca1 100644 --- a/rts/sm/NonMovingMark.c +++ b/rts/sm/NonMovingMark.c @@ -1929,6 +1929,8 @@ void nonmovingTidyThreads () } } +// Mark threads which appear to be dead but still need to be properly torn down +// by resurrectThreads. void nonmovingResurrectThreads (struct MarkQueue_ *queue, StgTSO **resurrected_threads) { StgTSO *next; @@ -1940,6 +1942,9 @@ void nonmovingResurrectThreads (struct MarkQueue_ *queue, StgTSO **resurrected_t case ThreadComplete: continue; default: + // The thread may be, e.g., deadlocked in which case we must ensure + // it isn't swept since resurrectThreads will need to throw it an + // exception. markQueuePushClosure_(queue, (StgClosure*)t); t->global_link = *resurrected_threads; *resurrected_threads = t; |