From: Hidetoshi NAGAI <nagai@...>
Date: 2008-08-03T02:38:00+09:00
Subject: [ruby-dev:35741] (ruby1.9) "irb -r tk" causes SEGV, but "irb -r tcltklib -r tk" doesn't

永井＠知能．九工大です．

報告のみですみませんが，標題のように ruby 1.9 の irb で SEGV します．

下記のログのように，irb のプロンプトから "require 'tk'" を
実行した場合には SEGV しません．
コマンドライン引数で "-r tk" を付けて読み込むようにすると SEGV します．
ですが，コマンドライン引数を "-r tcltklib -r tk" というようにして，
tk.rb の先頭で require している tcltklib.so を
先に読み込んでおくようにすると問題なく動きます．

=======================================================================
$ ruby19 --version
ruby 1.9.0 (2008-08-02 revision 0) [i686-linux]
$ irb19
irb(main):001:0> require 'tk'
=> true
irb(main):002:0> exit
$ irb19 -r tcltklib -r tk
irb(main):001:0> exit
$ irb19 -r tk
/usr/local/lib/ruby/1.9.0/tk/event.rb:451: [BUG] Segmentation fault
ruby 1.9.0 (2008-08-02 revision 0) [i686-linux]

-- control frame ----------
c:0018 p:---- s:0056 b:0056 l:000055 d:000055 CFUNC  :_define_attribute_aliases
c:0017 p:2046 s:0052 b:0052 l:002110 d:002110 CLASS  /usr/local/lib/ruby/1.9.0/tk/event.rb:451
c:0016 p:0015 s:0049 b:0049 l:000048 d:000048 CLASS  /usr/local/lib/ruby/1.9.0/tk/event.rb:16
c:0015 p:0035 s:0047 b:0047 l:000046 d:000046 TOP    /usr/local/lib/ruby/1.9.0/tk/event.rb:15
c:0014 p:---- s:0045 b:0045 l:000044 d:000044 FINISH :set_encoding
c:0013 p:0006 s:0043 b:0042 l:000041 d:000041 CLASS  /usr/local/lib/ruby/1.9.0/tk.rb:913
c:0012 p:0063 s:0040 b:0040 l:000039 d:000039 TOP    /usr/local/lib/ruby/1.9.0/tk.rb:912
c:0011 p:---- s:0031 b:0031 l:000030 d:000030 FINISH :set_encoding
c:0010 p:---- s:0029 b:0029 l:000028 d:000028 CFUNC  :require
c:0009 p:0017 s:0025 b:0025 l:000018 d:000024 BLOCK  /usr/local/lib/ruby/1.9.0/irb/init.rb:249
c:0008 p:---- s:0024 b:0024 l:000023 d:000023 FINISH :===
c:0007 p:---- s:0022 b:0022 l:000021 d:000021 CFUNC  :each
c:0006 p:0011 s:0019 b:0019 l:000018 d:000018 METHOD /usr/local/lib/ruby/1.9.0/irb/init.rb:247
c:0005 p:0071 s:0015 b:0015 l:000014 d:000014 METHOD /usr/local/lib/ruby/1.9.0/irb/init.rb:20
c:0004 p:0041 s:0011 b:0011 l:000010 d:000010 METHOD /usr/local/lib/ruby/1.9.0/irb.rb:53
c:0003 p:0033 s:0006 b:0006 l:000005 d:000005 TOP    /usr/local/bin/irb19:12
c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH :private_class_method
c:0001 p:0000 s:0002 b:0002 l:000001 d:000001 TOP    <dummy toplevel>:17
---------------------------
DBG> : "/usr/local/lib/ruby/1.9.0/tk/event.rb:451:in `_define_attribute_aliases'"
DBG> : "/usr/local/lib/ruby/1.9.0/tk/event.rb:451:in `<class:Event>'"
DBG> : "/usr/local/lib/ruby/1.9.0/tk/event.rb:16:in `<module:TkEvent>'"
DBG> : "/usr/local/lib/ruby/1.9.0/tk/event.rb:15:in `<top (required)>'"
DBG> : "/usr/local/lib/ruby/1.9.0/tk.rb:913:in `<module:TkComm>'"
DBG> : "/usr/local/lib/ruby/1.9.0/tk.rb:912:in `<top (required)>'"
DBG> : "/usr/local/lib/ruby/1.9.0/irb/init.rb:249:in `require'"
DBG> : "/usr/local/lib/ruby/1.9.0/irb/init.rb:249:in `block in load_modules'"
DBG> : "/usr/local/lib/ruby/1.9.0/irb/init.rb:247:in `each'"
DBG> : "/usr/local/lib/ruby/1.9.0/irb/init.rb:247:in `load_modules'"
DBG> : "/usr/local/lib/ruby/1.9.0/irb/init.rb:20:in `setup'"
DBG> : "/usr/local/lib/ruby/1.9.0/irb.rb:53:in `start'"
DBG> : "/usr/local/bin/irb19:12:in `<main>'"
-- backtrace of native function call (Use addr2line) --
0x80e01b3
0x810079a
0x81007c6
0x80b2f85
0xb7f3502d
0xffffe440
0x80d5143
0x80d518b
0x80dee28
0x80d6905
0xb7a1ee32
0x80df3b7
0x80df509
0x80ddc5a
0x80d97ad
0x80dc7e8
0x80dcb52
0x810307b
0x81038eb
0x80d052b
0x80d05b9
0x80de3e0
0x80dc0c0
0x80dc7e8
0x80dcb52
0x810307b
0x81038eb
0x80df3b7
0x80df509
0x80ddc5a
0x80d97ad
0x80dc7e8
0x80d8714
0x80d6b6a
0x80e8d57
0x80df3b7
0x80df509
0x80ddc5a
0x80d97ad
0x80dc7e8
0x80dcb52
0x805a0ed
0x805a151
0x8058dc6
0xb7d9ec1f
0x8058ce9
-------------------------------------------------------
アボートしました
=======================================================================
-- 
永井 秀利  (nagai@ai.kyutech.ac.jp)
九州工業大学 大学院情報工学研究院 知能情報工学研究系