merges r29885 from trunk into ruby_1_9_2.

--
* vm.c (rb_thread_mark): should mark self in conrol
  frames.  [ruby-core:33289]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@30265 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/vm.c b/vm.c
index e235314b99..f7dbb178e2 100644
--- a/vm.c
+++ b/vm.c
@@ -1650,6 +1650,7 @@ rb_thread_mark(void *ptr)
 	    while (cfp != limit_cfp) {
 		rb_iseq_t *iseq = cfp->iseq;
 		rb_gc_mark(cfp->proc);
+		rb_gc_mark(cfp->self);
 		if (iseq) {
 		    rb_gc_mark(RUBY_VM_NORMAL_ISEQ_P(iseq) ? iseq->self : (VALUE)iseq);
 		}