From: Tanaka Akira <akr@...17n.org>
Date: 2005-01-01T00:00:05+09:00
Subject: [ruby-dev:25373] Module#autoload? dumps core

次のようにすると core を吐きます。

% ./ruby -ve '
module M
end
M.autoload(:X, "English")
ds = []
ObjectSpace.each_object(Data) {|o| ds << o }
require "English"
p ds
M.autoload?(:X)
class << ds[0]; p self end
'
ruby 1.9.0 (2004-12-31) [i686-linux]
[#<Data:0x401c773c>]
-e:10: [BUG] Segmentation fault
ruby 1.9.0 (2004-12-31) [i686-linux]

zsh: abort (core dumped)  ./ruby -ve 
% gdb ruby core 
GNU gdb 6.1-debian
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i386-linux"...Using host libthread_db library "/lib/libthread_db.so.1".

Core was generated by `./ruby -ve 
module M
end
M.autoload(:X, "English")
ds = []
ObjectSpace.each_obj'.
Program terminated with signal 6, Aborted.
Reading symbols from /lib/libdl.so.2...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /lib/libcrypt.so.1...done.
Loaded symbols for /lib/libcrypt.so.1
Reading symbols from /lib/libm.so.6...done.
Loaded symbols for /lib/libm.so.6
Reading symbols from /lib/libc.so.6...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/ld-linux.so.2...done.
Loaded symbols for /lib/ld-linux.so.2
#0  0x4009e6b1 in kill () from /lib/libc.so.6
(gdb) bt
#0  0x4009e6b1 in kill () from /lib/libc.so.6
#1  0x4009e435 in raise () from /lib/libc.so.6
#2  0x4009f978 in abort () from /lib/libc.so.6
#3  0x080d5ad6 in rb_bug (fmt=0x0) at error.c:214
#4  0x080b2a92 in sigsegv (sig=11) at signal.c:446
#5  <signal handler called>
#6  st_lookup (table=0x0, key=7425, value=0xbfffe888) at st.c:258
#7  0x08054693 in search_method (klass=1075602696, id=7425, origin=0xbfffe8b4) at eval.c:380
#8  0x080546e9 in rb_get_method_body (klassp=0xbfffe910, idp=0xbfffe8f4, noexp=0xbfffe8f8) at eval.c:401
#9  0x0805ecfa in rb_call (klass=1075607356, recv=1075607356, mid=7425, argc=1, argv=0xbfffe928, scope=1) at eval.c:5757
#10 0x080598ca in rb_eval (self=1075607356, n=0x0) at ruby.h:635
#11 0x0805b6ed in module_setup (module=1075607356, n=0x401c77c8) at eval.c:3917
#12 0x0805aa70 in rb_eval (self=1075673536, n=0x0) at eval.c:3853
#13 0x08055e9d in ruby_exec_internal () at eval.c:1470
#14 0x08055eb6 in ruby_exec () at eval.c:1488
#15 0x08055f00 in ruby_run () at eval.c:1505
#16 0x08053f05 in main (argc=0, argv=0x0, envp=0xbffff8f4) at main.c:38
(gdb) 

まぁ、飽きたのでこんなところで。
-- 
[田中 哲][たなか あきら][Tanaka Akira]