* gc.c (gc_mark_roots): should mark the VM object itself to mark

  singleton class of the VM object.
  Before this patch, we only set mark bit for the VM object and
  invoke mark function separately.
  [Bug #12583]

* test/ruby/test_gc.rb: add a test.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55663 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/gc.c b/gc.c
index ebfb037c1e..e72006898c 100644
--- a/gc.c
+++ b/gc.c
@@ -4694,7 +4694,7 @@ gc_mark_roots(rb_objspace_t *objspace, const char **categoryp)
     MARK_CHECKPOINT("vm");
     SET_STACK_END;
     rb_vm_mark(th->vm);
-    if (th->vm->self) gc_mark_set(objspace, th->vm->self);
+    if (th->vm->self) gc_mark(objspace, th->vm->self);
 
     MARK_CHECKPOINT("finalizers");
     mark_tbl(objspace, finalizer_table);