https://git.ruby-lang.org/ruby.git/commit/?id=beb59c3b45

From beb59c3b4574e2bd6de3484a6cbcbdf6bd8aac48 Mon Sep 17 00:00:00 2001
From: Kazuhiro NISHIYAMA <zn@m...>
Date: Wed, 8 Jan 2020 12:26:48 +0900
Subject: Add GC guard

Try to fix infrequent error:

https://rubyci.org/logs/rubyci.s3.amazonaws.com/solaris10-sunc/ruby-master/log/20200108T010004Z.fail.html.gz
```
  1) Error:
DRbTests::TestDRbSSLCore#test_02_basic_object:
RangeError: "348" is recycled object
    (drbssl://localhost:58371) /export/home/users/chkbuild/cb-sunc/tmp/build/20200108T010004Z/ruby/lib/drb/drb.rb:366:in `_id2ref'
    (drbssl://localhost:58371) /export/home/users/chkbuild/cb-sunc/tmp/build/20200108T010004Z/ruby/lib/drb/drb.rb:366:in `to_obj'
    (drbssl://localhost:58371) /export/home/users/chkbuild/cb-sunc/tmp/build/20200108T010004Z/ruby/lib/drb/drb.rb:1537:in `to_obj'
    (drbssl://localhost:58371) /export/home/users/chkbuild/cb-sunc/tmp/build/20200108T010004Z/ruby/lib/drb/drb.rb:1856:in `to_obj'
    (drbssl://localhost:58371) /export/home/users/chkbuild/cb-sunc/tmp/build/20200108T010004Z/ruby/lib/drb/drb.rb:620:in `recv_request'
    (drbssl://localhost:58371) /export/home/users/chkbuild/cb-sunc/tmp/build/20200108T010004Z/ruby/lib/drb/drb.rb:931:in `recv_request'
    (drbssl://localhost:58371) /export/home/users/chkbuild/cb-sunc/tmp/build/20200108T010004Z/ruby/lib/drb/drb.rb:1665:in `init_with_client'
    (drbssl://localhost:58371) /export/home/users/chkbuild/cb-sunc/tmp/build/20200108T010004Z/ruby/lib/drb/drb.rb:1677:in `setup_message'
    (drbssl://localhost:58371) /export/home/users/chkbuild/cb-sunc/tmp/build/20200108T010004Z/ruby/lib/drb/drb.rb:1641:in `perform'
    (drbssl://localhost:58371) /export/home/users/chkbuild/cb-sunc/tmp/build/20200108T010004Z/ruby/lib/drb/drb.rb:1734:in `block (2 levels) in main_loop'
    (drbssl://localhost:58371) /export/home/users/chkbuild/cb-sunc/tmp/build/20200108T010004Z/ruby/lib/drb/drb.rb:1730:in `loop'
    (drbssl://localhost:58371) /export/home/users/chkbuild/cb-sunc/tmp/build/20200108T010004Z/ruby/lib/drb/drb.rb:1730:in `block in main_loop'
    /export/home/users/chkbuild/cb-sunc/tmp/build/20200108T010004Z/ruby/test/drb/drbtest.rb:163:in `test_02_basic_object'
```

diff --git a/test/drb/ut_drb.rb b/test/drb/ut_drb.rb
index b1306d0..f05d3f8 100644
--- a/test/drb/ut_drb.rb
+++ b/test/drb/ut_drb.rb
@@ -69,7 +69,7 @@ class DRbEx https://github.com/ruby/ruby/blob/trunk/test/drb/ut_drb.rb#L69
     private def priv; 3; end
   end
   def basic_object
-    BO.new
+    @basic_object = BO.new
   end
 
   def unknown_class
-- 
cgit v0.10.2


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