From: Tanaka Akira <akr@...17n.org>
Date: 2004-05-20T14:59:56+09:00
Subject: [ruby-dev:23550] Socket.new(Socket::AF_INET, Socket::SOCK_STREAM, 0) dumps core with ruby-1.8.2

次のように、1.8.2 で
  Socket.new(Socket::AF_INET, Socket::SOCK_STREAM, 0)
とすると core を吐きます。

% ./ruby -rsocket -e 'Socket.new(Socket::AF_INET, Socket::SOCK_STREAM, 0)'
-e:1: [BUG] Segmentation fault
ruby 1.8.2 (2004-05-17) [i686-linux]

zsh: abort (core dumped)  ./ruby -rsocket -e 'Socket.new(Socket::AF_INET, Socket::SOCK_STREAM, 0)'
% 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 -rsocket -e Socket.new(Socket::AF_INET, Socket::SOCK_STREAM, 0)'.
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
Reading symbols from /home/akr/ruby/ruby/.prefix-1.8/lib/ruby/1.8/i686-linux/socket.so...done.
Loaded symbols for /home/akr/ruby/ruby/.prefix-1.8/lib/ruby/1.8/i686-linux/socket.so
#0  0x4009d721 in kill () from /lib/libc.so.6
(gdb) bt
#0  0x4009d721 in kill () from /lib/libc.so.6
#1  0x4009d4c5 in raise () from /lib/libc.so.6
#2  0x4009e9e8 in abort () from /lib/libc.so.6
#3  0x080cada6 in rb_bug (fmt=0x0) at error.c:208
#4  0x080ab112 in sigsegv (sig=11) at signal.c:443
#5  <signal handler called>
#6  setup_domain_and_type (domain=5, dv=0xbfffecc8, type=3, tv=0xbfffeccc) at socket.c:1739
#7  0x401dd136 in sock_initialize (sock=4, domain=4, type=4, protocol=1) at socket.c:1827
#8  0x08067d92 in call_cfunc (func=0x401dd0f0 <sock_initialize>, recv=1075602780, len=0, argc=135214400, argv=0xbffff198)
    at eval.c:5390
#9  0x0805bf22 in rb_call0 (klass=1075603940, recv=1075602780, id=2961, oid=4, argc=3, argv=0xbffff198, body=0x401c69bc, 
    nosuper=0) at eval.c:5512
#10 0x0805c778 in rb_call (klass=1075603940, recv=1075602780, mid=2961, argc=3, argv=0xbffff198, scope=1) at eval.c:5733
#11 0x0805cb2e in rb_funcall2 (recv=0, mid=4, argc=4, argv=0x4) at ruby.h:631
#12 0x0805f228 in rb_obj_call_init (obj=4, argc=4, argv=0x4) at eval.c:7160
#13 0x08083a3c in rb_class_new_instance (argc=4, argv=0x4, klass=4) at object.c:1546
#14 0x08067d5a in call_cfunc (func=0x8077310 <rb_io_s_new>, recv=1075603940, len=0, argc=135214400, argv=0xbffff198)
    at eval.c:5378
#15 0x0805bf22 in rb_call0 (klass=1075632720, recv=1075603940, id=3369, oid=4, argc=3, argv=0xbffff198, body=0x401cda00, 
    nosuper=0) at eval.c:5512
#16 0x0805c778 in rb_call (klass=1075632720, recv=1075603940, mid=3369, argc=3, argv=0xbffff198, scope=0) at eval.c:5733
#17 0x080579b0 in rb_eval (self=1075669520, n=0x4) at ruby.h:631
#18 0x08053e4b in ruby_exec () at eval.c:1454
#19 0x08053e90 in ruby_run () at eval.c:1475
#20 0x08052035 in main (argc=4, argv=0x4, envp=0xbffff968) at main.c:50
(gdb) 

1.9 や 1.8.1 は問題ありません。

% ruby -v -rsocket -e 'Socket.new(Socket::AF_INET, Socket::SOCK_STREAM, 0)'
ruby 1.9.0 (2004-05-19) [i686-linux]
% ruby-1.8.1 -v -rsocket -e 'Socket.new(Socket::AF_INET, Socket::SOCK_STREAM, 0)'
ruby 1.8.1 (2003-12-25) [i686-linux]
-- 
[田中 哲][たなか あきら][Tanaka Akira]