From: Tanaka Akira <akr@...17n.org>
Date: 2004-09-25T03:45:05+09:00
Subject: [ruby-dev:24336] Array#+ dumps core

次のようにすると core を吐きます。

Z:akr@boron% for i in {6000..7000}
do
echo $i
./ruby -e '
def fin(&block) ObjectSpace.define_finalizer(Object.new, &block) end
x = (1..10).to_a
y = (1..10).to_a
fin { eval "x.replace Array.new(1000)" }
'$i'.times { Object.new }
Object.new
Object.new
Object.new
Object.new
Object.new
Object.new
x + y
' || break
done
6000
6001
...
6429
6430
-e:13: [BUG] Segmentation fault
ruby 1.9.0 (2004-09-24) [i686-linux]

Z:akr@boron% 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/tls/libthread_db.so.1".

Core was generated by `./ruby -e 
def fin(&block) ObjectSpace.define_finalizer(Object.new, &block) end'.
Program terminated with signal 6, Aborted.

warning: current_sos: Can't read pathname for load map: Input/output error

Reading symbols from /lib/tls/libdl.so.2...Reading symbols from /usr/lib/debug//lib/tls/libdl-2.3.2.so...done.
done.
Loaded symbols for /lib/tls/libdl.so.2
Reading symbols from /lib/tls/libcrypt.so.1...Reading symbols from /usr/lib/debug//lib/tls/libcrypt-2.3.2.so...done.
done.
Loaded symbols for /lib/tls/libcrypt.so.1
Reading symbols from /lib/tls/libm.so.6...Reading symbols from /usr/lib/debug//lib/tls/libm-2.3.2.so...done.
done.
Loaded symbols for /lib/tls/libm.so.6
Reading symbols from /lib/tls/libc.so.6...Reading symbols from /usr/lib/debug//lib/tls/libc-2.3.2.so...done.
done.
Loaded symbols for /lib/tls/libc.so.6
Reading symbols from /lib/ld-linux.so.2...Reading symbols from /usr/lib/debug//lib/ld-2.3.2.so...done.
done.
Loaded symbols for /lib/ld-linux.so.2
#0  0x40099ee9 in raise () from /lib/tls/libc.so.6
(gdb) bt
#0  0x40099ee9 in raise () from /lib/tls/libc.so.6
#1  0x4009b781 in abort () from /lib/tls/libc.so.6
#2  0x080d1d16 in rb_bug (fmt=0x0) at error.c:214
#3  0x080afd62 in sigsegv (sig=11) at signal.c:446
#4  <signal handler called>
#5  blk_free (data=0x813a578) at eval.c:7732
#6  0x08071365 in rb_gc_call_finalizer_at_exit () at gc.c:1816
#7  0x080555d2 in ruby_finalize_1 () at eval.c:1397
#8  0x080556eb in ruby_cleanup (ex=0) at eval.c:1434
#9  0x08055831 in ruby_stop (ex=4) at eval.c:1474
#10 0x0805587f in ruby_run () at eval.c:1486
#11 0x08053925 in main (argc=4, argv=0x4, envp=0xbffffa44) at main.c:38
(gdb) 
-- 
[田中 哲][たなか あきら][Tanaka Akira]