[ruby-dev:25132] DBM#select dumps core

次のようにすると core を吐きます。

% ./ruby -rdbm -e '
d = DBM.open("/tmp/db", 0644, DBM::NEWDB)
100.times {|i| d[i.to_s] = i.to_s }
d.select {|a| d.close; p a }
'
["59", "59"]
zsh: floating point exception (core dumped)  ./ruby -rdbm -e 
% 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 -rdbm -e 
d = DBM.open("/tmp/db", 0644, DBM::NEWDB)
100.times {|i| d[i.t'.
Program terminated with signal 8, Arithmetic exception.
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/head-ruby/lib/ruby/1.9/i686-linux/dbm.so...done.
Loaded symbols for /home/akr/ruby/head-ruby/lib/ruby/1.9/i686-linux/dbm.so
Reading symbols from /usr/lib/libgdbm_compat.so.3...done.
Loaded symbols for /usr/lib/libgdbm_compat.so.3
Reading symbols from /usr/lib/libgdbm.so.3...done.
Loaded symbols for /usr/lib/libgdbm.so.3
#0  0x401e6b57 in _gdbm_findkey () from /usr/lib/libgdbm.so.3
(gdb) bt
#0  0x401e6b57 in _gdbm_findkey () from /usr/lib/libgdbm.so.3
#1  0x401e5717 in gdbm_nextkey () from /usr/lib/libgdbm.so.3
#2  0x4001e3b9 in dbm_nextkey () from /usr/lib/libgdbm_compat.so.3
#3  0x40019a70 in fdbm_select (obj=1075601816) at dbm.c:235
#4  0x0806acc1 in call_cfunc (func=0x40019980 <fdbm_select>, recv=1075605896, len=0, argc=135529384, argv=0x0)
    at eval.c:5413
#5  0x0805e9c2 in rb_call0 (klass=1075608436, recv=1075605896, id=3745, oid=2102017802, argc=0, argv=0x0, body=0x401c79a8, 
    nosuper=0) at eval.c:5551
#6  0x0805ec88 in rb_call (klass=1075608436, recv=1075605896, mid=3745, argc=0, argv=0x0, scope=0) at eval.c:5773
#7  0x0805982a in rb_eval (self=1075673536, n=0x7d4a3f0a) at ruby.h:635
#8  0x08058bd9 in rb_eval (self=1075673536, n=0x7d4a3f0a) at eval.c:2919
#9  0x08055dfd in ruby_exec_internal () at eval.c:1470
#10 0x08055e16 in ruby_exec () at eval.c:1488
#11 0x08055e60 in ruby_run () at eval.c:1505
#12 0x08053e65 in main (argc=2102017802, argv=0x7d4a3f0a, envp=0xbffff928) at main.c:38
(gdb) 
-- 
[田中 哲][たなか あきら][Tanaka Akira]