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small bugfix in traverseBlackHoleQueue()
[ghc-hetmet.git]
/
rts
/
sm
/
MarkWeak.c
diff --git
a/rts/sm/MarkWeak.c
b/rts/sm/MarkWeak.c
index
96b4f67
..
3d80357
100644
(file)
--- a/
rts/sm/MarkWeak.c
+++ b/
rts/sm/MarkWeak.c
@@
-341,7
+341,11
@@
traverseBlackholeQueue (void)
}
}
evacuate((StgClosure **)&t);
- if (prev) prev->_link = t;
+ if (prev) {
+ prev->_link = t;
+ } else {
+ blackhole_queue = t;
+ }
// no write barrier when on the blackhole queue,
// because we traverse the whole queue on every GC.
flag = rtsTrue;