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Mark RCLASS_INCLUDER

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Since 4d8f76286beefbb8f7fba2479f6d0a0b4a47304c, we need to dereference
the includer field on iclasses, so we need to mark it to make sure
it's alive.

Sometimes during compaction we crash because the field is dangling,
though I have a hard time constructing such a situation. See
http://ci.rvm.jp/results/trunk@ruby-iga/3947725
This commit is contained in:
Alan Wu 2022-05-05 16:30:56 -04:00
parent 7448afccb3
commit cae85c528c
Notes: git 2022-05-06 06:37:32 +09:00 
Merged: https://github.com/ruby/ruby/pull/5890
1 changed files with 4 additions and 0 deletions
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4
gc.c
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@ -6994,6 +6994,10 @@ gc_mark_children(rb_objspace_t *objspace, VALUE obj)
gc_mark(objspace, RCLASS_SUPER(obj));
}
if (!RCLASS_EXT(obj)) break;
if (RCLASS_INCLUDER(obj)) {
gc_mark(objspace, RCLASS_INCLUDER(obj));
}
mark_m_tbl(objspace, RCLASS_CALLABLE_M_TBL(obj));
cc_table_mark(objspace, obj);
break;