In article <200712120739.lBC7diBA002174 / ci.ruby-lang.org>,
  matz / ruby-lang.org writes:

> matz	2007-12-12 16:39:43 +0900 (Wed, 12 Dec 2007)
>
>   New Revision: 14199
>
>   Modified files:
>     trunk/ChangeLog
>     trunk/io.c
>
>   Log:
>     * io.c (rb_io_check_readable): set default external encoding to
>       STDIN.
>     
>     * io.c (io_enc_str): associate encoding to output string.

これにより、test-all が SEGV します。
http://www.rubyist.net/~akr/chkbuild/debian-sarge/ruby-trunk/log/20071212T170901.txt.gz

In article <200712121227.lBCCRetX002566 / ci.ruby-lang.org>,
  matz / ruby-lang.org writes:

> matz	2007-12-12 21:27:39 +0900 (Wed, 12 Dec 2007)
>
>   New Revision: 14200
>
>   Modified files:
>     trunk/ChangeLog
>     trunk/eval_method.ci
>
>   Log:
>     * eval_method.ci (rb_alias): no need to skip aliasing when new
>       equals to old.  [ruby-core:13990]

さらにこれにより、test-all が動かなくなっています。
http://www.rubyist.net/~akr/chkbuild/debian-sarge/ruby-trunk/log/20071212T213401.txt.gz
-- 
[田中 哲][たなか あきら][Tanaka Akira]