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clear stack_end.

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* cont.c (cont_save_thread): clear only `stack_end`. Clearing tells
  GC mark function to ignore this macine stack (not allocated yet).
  `stack_start` will be used by machine stack store/restore phase
  (on FIBER_USE_NATIVE == 0), so that only `stack_end` is cleared.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59829 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
ko1 2017-09-10 17:30:16 +00:00
parent d446f15c97
commit 525532ff43
1 changed files with 2 additions and 4 deletions
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6
cont.c
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@ -485,16 +485,14 @@ cont_save_thread(rb_context_t *cont, rb_thread_t *th)
/* save thread context */
sth->ec = th->ec;
#if FIBER_USE_NATIVE
/* saved_thread->machine.stack_(start|end) should be NULL */
/* saved_thread->machine.stack_end should be NULL */
/* because it may happen GC afterward */
sth->ec.machine.stack_start = NULL;
sth->ec.machine.stack_end = NULL;
#ifdef __ia64
sth->ec.machine.register_stack_start = NULL;
sth->ec.machine.register_stack_end = NULL;
#endif
#endif
}
static void