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futures: fix lightweight-continuation GC bug

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Merge to 5.1
(cherry picked from commit 7579b48791)
This commit is contained in:
Matthew Flatt 2011-02-05 06:41:09 -07:00 committed by Eli Barzilay
parent e8a0c3c187
commit b32d2eeaac
1 changed files with 2 additions and 0 deletions
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src/racket/src/fun.c
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@ -8516,6 +8516,7 @@ Scheme_Lightweight_Continuation *scheme_capture_lightweight_continuation(Scheme_
lw = (Scheme_Lightweight_Continuation *)storage[0];
lw->stack_slice = stack;
lwc = lw->saved_lwc;
len = lwc->runstack_start - lwc->runstack_end;
runstack_slice = MALLOC_N(Scheme_Object*, len);
@ -8535,6 +8536,7 @@ Scheme_Lightweight_Continuation *scheme_capture_lightweight_continuation(Scheme_
runstack_slice[i] = 0;
}
lwc = lw->saved_lwc;
len = lwc->cont_mark_stack_end - lwc->cont_mark_stack_start;
if (len) {