* backport r32669 from trunk.

* proc.c (struct METHOD), gc.c (gc_marks), vm_method.c
  (rb_gc_mark_unlinked_live_method_entries): fix SEGV bug.
  rb_method_entry_t was free'd even when the method is still on the
  stack if it is BMETHOD (i.e., Method#call).  This is because
  rb_method_entry_t is embedded in struct METHOD.  This commit
  separates them and marks the live method entries.
  See [ruby-core:38449] in detail.  fix [Bug #5047] [ruby-core:38171]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@32728 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 0 deletions

diff --git a/gc.c b/gc.c
index beb697700e..8c33323e9b 100644
--- a/gc.c
+++ b/gc.c
@@ -2461,6 +2461,8 @@ gc_marks(rb_objspace_t *objspace)
 
     rb_gc_mark_parser();
 
+    rb_gc_mark_unlinked_live_method_entries(th->vm);
+
     /* gc_mark objects whose marking are not completed*/
     while (!MARK_STACK_EMPTY) {
 	if (mark_stack_overflow) {