今日、cvs update したら、rb_thread_schedule で core を吐くようになったのですが、
何か思い当たるかたはいますか?

# のべつまくなしにとあるプログラム - アンテナ - を起動していて、今の所、
# 3回 core を吐いています。

% gdb =ruby core
GNU gdb 5.3-debian
Copyright 2002 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"...
Core was generated by `ruby ./samidare -v'.
Program terminated with signal 11, Segmentation fault.
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/lib/ruby/site_ruby/1.8/i686-linux/xtemplate_ext.so...done.
Loaded symbols for /home/akr/ruby/lib/ruby/site_ruby/1.8/i686-linux/xtemplate_ext.so
Reading symbols from /home/akr/ruby/lib/ruby/1.8/i686-linux/stringio.so...done.
Loaded symbols for /home/akr/ruby/lib/ruby/1.8/i686-linux/stringio.so
Reading symbols from /home/akr/ruby/lib/ruby/1.8/i686-linux/syck.so...done.
Loaded symbols for /home/akr/ruby/lib/ruby/1.8/i686-linux/syck.so
Reading symbols from /home/akr/ruby/lib/ruby/1.8/i686-linux/iconv.so...done.
Loaded symbols for /home/akr/ruby/lib/ruby/1.8/i686-linux/iconv.so
Reading symbols from /home/akr/ruby/lib/ruby/1.8/i686-linux/socket.so...done.
Loaded symbols for /home/akr/ruby/lib/ruby/1.8/i686-linux/socket.so
Reading symbols from /home/akr/ruby/lib/ruby/1.8/i686-linux/zlib.so...done.
Loaded symbols for /home/akr/ruby/lib/ruby/1.8/i686-linux/zlib.so
Reading symbols from /usr/lib/libz.so.1...done.
Loaded symbols for /usr/lib/libz.so.1
Reading symbols from /home/akr/ruby/lib/ruby/1.8/i686-linux/fcntl.so...done.
Loaded symbols for /home/akr/ruby/lib/ruby/1.8/i686-linux/fcntl.so
Reading symbols from /lib/libnss_files.so.2...done.
Loaded symbols for /lib/libnss_files.so.2
Reading symbols from /lib/libnss_dns.so.2...done.
Loaded symbols for /lib/libnss_dns.so.2
Reading symbols from /lib/libresolv.so.2...done.
Loaded symbols for /lib/libresolv.so.2
Reading symbols from /usr/lib/gconv/EUC-JP.so...done.
Loaded symbols for /usr/lib/gconv/EUC-JP.so
Reading symbols from /usr/lib/gconv/libJIS.so...done.
Loaded symbols for /usr/lib/gconv/libJIS.so
#0  0x08062e1b in rb_thread_schedule () at eval.c:8618
8618            if (!found && th->status <= THREAD_RUNNABLE) {
(gdb) p found
$1 = 0
(gdb) p th
$2 = 0x60
(gdb) where
#0  0x08062e1b in rb_thread_schedule () at eval.c:8618
#1  0x08058c1e in rb_eval (self=1076515068, n=0x402a6484) at eval.c:3653
#2  0x080571d4 in rb_eval (self=1076515068, n=0x402a6344) at eval.c:3001
#3  0x08059d47 in rb_yield_0 (val=1076977948, self=1076515068, klass=0, flags=2, avalue=2) at eval.c:4190
#4  0x08064900 in rb_thread_yield (arg=1076977948, th=0x8b436b0) at eval.c:9551
#5  0x08064671 in rb_thread_start_0 (fn=0x8064864 <rb_thread_yield>, arg=0x4031611c, th=0x8b436b0) at eval.c:9466
#6  0x080649ee in rb_thread_start (klass=1075622216, args=1076977948) at eval.c:9590
#7  0x0805b77e in rb_call0 (klass=1075622196, recv=1075622216, id=5001, oid=5001, argc=0, argv=0x0, body=0x401cb0bc, 
    nosuper=0) at eval.c:4805
#8  0x0805c1d6 in rb_call (klass=1075622196, recv=1075622216, mid=5001, argc=0, argv=0x0, scope=0) at eval.c:5154
#9  0x08057140 in rb_eval (self=1076515068, n=0x402a64d4) at eval.c:2991
#10 0x0805638c in rb_eval (self=1076515068, n=0x402a6308) at eval.c:2719
#11 0x08057c3a in rb_eval (self=1076515068, n=0x402a5ed0) at eval.c:3172
#12 0x08056940 in rb_eval (self=1076515068, n=0x402a5cf0) at eval.c:2847
#13 0x0805bd89 in rb_call0 (klass=1076514868, recv=1076515068, id=10681, oid=10681, argc=0, argv=0xbffdb5a8, 
    body=0x402a5cf0, nosuper=0) at eval.c:5061
#14 0x0805c1d6 in rb_call (klass=1076514868, recv=1076515068, mid=10681, argc=2, argv=0xbffdb5a0, scope=0) at eval.c:5154
#15 0x08057140 in rb_eval (self=1077057188, n=0x402a59e4) at eval.c:2991
#16 0x080604e7 in block_pass (self=1077057188, node=0x402a59f8) at eval.c:7230
#17 0x08056216 in rb_eval (self=1077057188, n=0x402a5a98) at eval.c:2705
#18 0x0805bd89 in rb_call0 (klass=1075637536, recv=1077057188, id=10681, oid=10681, argc=0, argv=0xbffdc308, 
    body=0x402a5a98, nosuper=0) at eval.c:5061
#19 0x0805c1d6 in rb_call (klass=1075637536, recv=1077057188, mid=10681, argc=2, argv=0xbffdc300, scope=1) at eval.c:5154
#20 0x0805733c in rb_eval (self=1077057188, n=0x40351dc0) at eval.c:3005
#21 0x0805638c in rb_eval (self=1077057188, n=0x4035180c) at eval.c:2719
#22 0x08059d47 in rb_yield_0 (val=1076981408, self=1077057188, klass=0, flags=0, avalue=2) at eval.c:4190
#23 0x080566f4 in rb_eval (self=1077057068, n=0x403482c0) at eval.c:2794
#24 0x0805678e in rb_eval (self=1077057068, n=0x40348220) at eval.c:2804
#25 0x08059d47 in rb_yield_0 (val=1080038344, self=1077057068, klass=0, flags=0, avalue=0) at eval.c:4190
#26 0x08059f21 in rb_yield (val=1080038344) at eval.c:4243
#27 0x080b94ae in rb_ary_each (ary=1080038024) at array.c:817
#28 0x0805b7b1 in rb_call0 (klass=1075607376, recv=1080038024, id=3825, oid=3825, argc=0, argv=0x0, body=0x401c732c, 
    nosuper=0) at eval.c:4811
#29 0x0805c1d6 in rb_call (klass=1075607376, recv=1080038024, mid=3825, argc=0, argv=0x0, scope=0) at eval.c:5154
#30 0x08057140 in rb_eval (self=1077057068, n=0x403483c4) at eval.c:2991
#31 0x0805638c in rb_eval (self=1077057068, n=0x403481e4) at eval.c:2719
#32 0x08059d47 in rb_yield_0 (val=11, self=1077057068, klass=0, flags=0, avalue=0) at eval.c:4190
#33 0x08059f21 in rb_yield (val=11) at eval.c:4243
#34 0x080b94ae in rb_ary_each (ary=1076981768) at array.c:817
---Type <return> to continue, or q <return> to quit---
#35 0x0805b7b1 in rb_call0 (klass=1075607376, recv=1076981768, id=3825, oid=3825, argc=0, argv=0x0, body=0x401c732c, 
    nosuper=0) at eval.c:4811
#36 0x0805c1d6 in rb_call (klass=1075607376, recv=1076981768, mid=3825, argc=0, argv=0x0, scope=0) at eval.c:5154
#37 0x08057140 in rb_eval (self=1077057068, n=0x4034843c) at eval.c:2991
#38 0x0805638c in rb_eval (self=1077057068, n=0x403480a4) at eval.c:2719
#39 0x0805678e in rb_eval (self=1077057068, n=0x40347ff0) at eval.c:2804
#40 0x08059d47 in rb_yield_0 (val=1076982128, self=1077057068, klass=0, flags=0, avalue=0) at eval.c:4190
#41 0x08059f21 in rb_yield (val=1076982128) at eval.c:4243
#42 0x080b94ae in rb_ary_each (ary=1076983228) at array.c:817
#43 0x0805b7b1 in rb_call0 (klass=1075607376, recv=1076983228, id=3825, oid=3825, argc=0, argv=0x0, body=0x401c732c, 
    nosuper=0) at eval.c:4811
#44 0x0805c1d6 in rb_call (klass=1075607376, recv=1076983228, mid=3825, argc=0, argv=0x0, scope=0) at eval.c:5154
#45 0x08057140 in rb_eval (self=1077057068, n=0x403484c8) at eval.c:2991
#46 0x0805638c in rb_eval (self=1077057068, n=0x40347fb4) at eval.c:2719
#47 0x0805678e in rb_eval (self=1077057068, n=0x4034852c) at eval.c:2804
#48 0x0805bd89 in rb_call0 (klass=1077068768, recv=1077057068, id=28857, oid=28857, argc=0, argv=0xbffe0b44, 
    body=0x4034852c, nosuper=0) at eval.c:5061
#49 0x0805c1d6 in rb_call (klass=1077068768, recv=1077057068, mid=28857, argc=1, argv=0xbffe0b40, scope=0) at eval.c:5154
#50 0x08057140 in rb_eval (self=1077057188, n=0x403524b4) at eval.c:2991
#51 0x0805638c in rb_eval (self=1077057188, n=0x403517e4) at eval.c:2719
#52 0x08056940 in rb_eval (self=1077057188, n=0x40352658) at eval.c:2847
#53 0x0805bd89 in rb_call0 (klass=1077069868, recv=1077057188, id=28729, oid=28729, argc=0, argv=0xbffe1be8, 
    body=0x40352658, nosuper=0) at eval.c:5061
#54 0x0805c1d6 in rb_call (klass=1077069868, recv=1077057188, mid=28729, argc=2, argv=0xbffe1be0, scope=1) at eval.c:5154
#55 0x0805733c in rb_eval (self=1077057188, n=0x40353a58) at eval.c:3005
#56 0x0805638c in rb_eval (self=1077057188, n=0x40353954) at eval.c:2719
#57 0x0805bd89 in rb_call0 (klass=1077069868, recv=1077057188, id=28465, oid=28465, argc=0, argv=0xbffe27b4, 
    body=0x40353954, nosuper=0) at eval.c:5061
#58 0x0805c1d6 in rb_call (klass=1077069868, recv=1077057188, mid=28465, argc=1, argv=0xbffe27b0, scope=0) at eval.c:5154
#59 0x08057140 in rb_eval (self=1077057768, n=0x40358788) at eval.c:2991
#60 0x0805638c in rb_eval (self=1077057768, n=0x403585a8) at eval.c:2719
#61 0x08059d47 in rb_yield_0 (val=1077057188, self=1077057768, klass=0, flags=0, avalue=0) at eval.c:4190
#62 0x08059f21 in rb_yield (val=1077057188) at eval.c:4243
#63 0x080b94ae in rb_ary_each (ary=1077057228) at array.c:817
#64 0x0805b7b1 in rb_call0 (klass=1075607376, recv=1077057228, id=3825, oid=3825, argc=0, argv=0x0, body=0x401c732c, 
    nosuper=0) at eval.c:4811
#65 0x0805c1d6 in rb_call (klass=1075607376, recv=1077057228, mid=3825, argc=0, argv=0x0, scope=0) at eval.c:5154
#66 0x08057140 in rb_eval (self=1077057768, n=0x40358828) at eval.c:2991
#67 0x0805638c in rb_eval (self=1077057768, n=0x40358878) at eval.c:2719
---Type <return> to continue, or q <return> to quit---
#68 0x0805bd89 in rb_call0 (klass=1077070708, recv=1077057768, id=28465, oid=28465, argc=0, argv=0xbffe40e4, 
    body=0x40358878, nosuper=0) at eval.c:5061
#69 0x0805c1d6 in rb_call (klass=1077070708, recv=1077057768, mid=28465, argc=1, argv=0xbffe40e0, scope=1) at eval.c:5154
#70 0x0805733c in rb_eval (self=1077057768, n=0x40358fa8) at eval.c:3005
#71 0x0805638c in rb_eval (self=1077057768, n=0x40358df0) at eval.c:2719
#72 0x0805bd89 in rb_call0 (klass=1077070708, recv=1077057768, id=22593, oid=22593, argc=0, argv=0xbffe4cb4, 
    body=0x40358df0, nosuper=0) at eval.c:5061
#73 0x0805c1d6 in rb_call (klass=1077070708, recv=1077057768, mid=22593, argc=1, argv=0xbffe4cb0, scope=0) at eval.c:5154
#74 0x08057140 in rb_eval (self=1077070708, n=0x40359a70) at eval.c:2991
#75 0x0805bd89 in rb_call0 (klass=1077070688, recv=1077070708, id=22593, oid=22593, argc=0, argv=0xbffe53c4, 
    body=0x40359a70, nosuper=0) at eval.c:5061
#76 0x0805c1d6 in rb_call (klass=1077070688, recv=1077070708, mid=22593, argc=1, argv=0xbffe53c0, scope=0) at eval.c:5154
#77 0x08057140 in rb_eval (self=1076984528, n=0x4035bb40) at eval.c:2991
#78 0x08056f76 in rb_eval (self=1076984528, n=0x4035bb2c) at eval.c:2986
#79 0x08058199 in rb_eval (self=1076984528, n=0x4035bb18) at eval.c:3343
#80 0x08056c65 in rb_eval (self=1076984528, n=0x4035bac8) at eval.c:2940
#81 0x0805720e in rb_eval (self=1076984528, n=0x4035ba8c) at eval.c:3001
#82 0x0805bd89 in rb_call0 (klass=1076147528, recv=1076984528, id=2961, oid=2961, argc=0, argv=0xbffe70e8, 
    body=0x4035ba8c, nosuper=0) at eval.c:5061
#83 0x0805c1d6 in rb_call (klass=1076147528, recv=1076984528, mid=2961, argc=2, argv=0xbffe70e0, scope=1) at eval.c:5154
#84 0x0805c479 in rb_funcall2 (recv=1076984528, mid=2961, argc=2, argv=0xbffe70e0) at eval.c:5229
#85 0x0805e633 in rb_obj_call_init (obj=1076984528, argc=2, argv=0xbffe70e0) at eval.c:6288
#86 0x0807ec9f in rb_class_new_instance (argc=2, argv=0xbffe70e0, klass=1076147528) at object.c:767
#87 0x08073479 in rb_io_s_new (argc=2, argv=0xbffe70e0, klass=1076147528) at io.c:2919
#88 0x0805b77e in rb_call0 (klass=1075596296, recv=1076147528, id=3361, oid=3361, argc=2, argv=0xbffe70e0, 
    body=0x401c4bb8, nosuper=0) at eval.c:4805
#89 0x0805c1d6 in rb_call (klass=1075596296, recv=1076147528, mid=3361, argc=2, argv=0xbffe70e0, scope=0) at eval.c:5154
#90 0x08057140 in rb_eval (self=1077100688, n=0x40260ce0) at eval.c:2991
#91 0x08057d02 in rb_eval (self=1077100688, n=0x40260ccc) at eval.c:3192
#92 0x08059d47 in rb_yield_0 (val=61, self=1077100688, klass=0, flags=0, avalue=0) at eval.c:4190
#93 0x080566f4 in rb_eval (self=1076515068, n=0x402a5ed0) at eval.c:2794
#94 0x08056940 in rb_eval (self=1076515068, n=0x402a5cf0) at eval.c:2847
#95 0x0805bd89 in rb_call0 (klass=1076514868, recv=1076515068, id=10681, oid=10681, argc=0, argv=0xbffe8798, 
    body=0x402a5cf0, nosuper=0) at eval.c:5061
#96 0x0805c1d6 in rb_call (klass=1076514868, recv=1076515068, mid=10681, argc=2, argv=0xbffe8790, scope=0) at eval.c:5154
#97 0x08057140 in rb_eval (self=1077100688, n=0x402a59e4) at eval.c:2991
#98 0x080604e7 in block_pass (self=1077100688, node=0x402a59f8) at eval.c:7230
#99 0x08056216 in rb_eval (self=1077100688, n=0x402a5a98) at eval.c:2705
#100 0x0805bd89 in rb_call0 (klass=1075637536, recv=1077100688, id=10681, oid=10681, argc=0, argv=0xbffe94f4, 
---Type <return> to continue, or q <return> to quit---
    body=0x402a5a98, nosuper=0) at eval.c:5061
#101 0x0805c1d6 in rb_call (klass=1075637536, recv=1077100688, mid=10681, argc=1, argv=0xbffe94f0, scope=1) at eval.c:5154
#102 0x0805733c in rb_eval (self=1077100688, n=0x40260e48) at eval.c:3005
#103 0x0805638c in rb_eval (self=1077100688, n=0x40260c7c) at eval.c:2719
#104 0x0805bd89 in rb_call0 (klass=1076137628, recv=1077100688, id=12929, oid=12929, argc=0, argv=0xbffea0d4, 
    body=0x40260c7c, nosuper=0) at eval.c:5061
#105 0x0805c1d6 in rb_call (klass=1076137628, recv=1077100688, mid=12929, argc=1, argv=0xbffea0d0, scope=1) at eval.c:5154
#106 0x0805733c in rb_eval (self=1077100688, n=0x40262644) at eval.c:3005
#107 0x0805bd89 in rb_call0 (klass=1076137628, recv=1077100688, id=2961, oid=2961, argc=0, argv=0xbffeaad4, 
    body=0x40262644, nosuper=0) at eval.c:5061
#108 0x0805c1d6 in rb_call (klass=1076137628, recv=1077100688, mid=2961, argc=5, argv=0xbffeaac0, scope=1) at eval.c:5154
#109 0x0805c479 in rb_funcall2 (recv=1077100688, mid=2961, argc=5, argv=0xbffeaac0) at eval.c:5229
#110 0x0805e633 in rb_obj_call_init (obj=1077100688, argc=5, argv=0xbffeaac0) at eval.c:6288
#111 0x0807ec9f in rb_class_new_instance (argc=5, argv=0xbffeaac0, klass=1076137628) at object.c:767
#112 0x0805b77e in rb_call0 (klass=1075637496, recv=1076137628, id=7273, oid=3361, argc=5, argv=0xbffeaac0, 
    body=0x401cdb64, nosuper=0) at eval.c:4805
#113 0x0805c1d6 in rb_call (klass=1075637496, recv=1076137628, mid=7273, argc=5, argv=0xbffeaac0, scope=0) at eval.c:5154
#114 0x08057140 in rb_eval (self=1077101628, n=0x40297a74) at eval.c:2991
#115 0x08057d02 in rb_eval (self=1077101628, n=0x40297a10) at eval.c:3192
#116 0x0805bd89 in rb_call0 (klass=1076133188, recv=1077101628, id=20697, oid=20697, argc=0, argv=0x0, body=0x40297a10, 
    nosuper=0) at eval.c:5061
#117 0x0805c1d6 in rb_call (klass=1076133188, recv=1077101628, mid=20697, argc=0, argv=0x0, scope=2) at eval.c:5154
#118 0x080573ac in rb_eval (self=1077101628, n=0x40297e5c) at eval.c:3011
#119 0x08056940 in rb_eval (self=1077101628, n=0x40297d58) at eval.c:2847
#120 0x0805bd89 in rb_call0 (klass=1076133188, recv=1077101628, id=5001, oid=5001, argc=0, argv=0x0, body=0x40297d58, 
    nosuper=0) at eval.c:5061
#121 0x0805c1d6 in rb_call (klass=1076133188, recv=1077101628, mid=5001, argc=0, argv=0x0, scope=0) at eval.c:5154
#122 0x08057140 in rb_eval (self=1076133188, n=0x4029c128) at eval.c:2991
#123 0x080604e7 in block_pass (self=1076133188, node=0x4029c13c) at eval.c:7230
#124 0x08056216 in rb_eval (self=1076133188, n=0x4029c2b8) at eval.c:2705
#125 0x0805bd89 in rb_call0 (klass=1076133148, recv=1076133188, id=5001, oid=5001, argc=0, argv=0xbffecfa8, 
    body=0x4029c2b8, nosuper=0) at eval.c:5061
#126 0x0805c1d6 in rb_call (klass=1076133148, recv=1076133188, mid=5001, argc=2, argv=0xbffecfa0, scope=0) at eval.c:5154
#127 0x08057140 in rb_eval (self=1077115708, n=0x401ffab4) at eval.c:2991
#128 0x0805638c in rb_eval (self=1077115708, n=0x401fe7e0) at eval.c:2719
#129 0x08057c3a in rb_eval (self=1077115708, n=0x401fe68c) at eval.c:3172
#130 0x0805bd89 in rb_call0 (klass=1076539408, recv=1077115708, id=15201, oid=15201, argc=0, argv=0xbffee05c, 
    body=0x401fe68c, nosuper=0) at eval.c:5061
#131 0x0805c1d6 in rb_call (klass=1076539408, recv=1077115708, mid=15201, argc=3, argv=0xbffee050, scope=1) at eval.c:5154
---Type <return> to continue, or q <return> to quit---
#132 0x0805733c in rb_eval (self=1077115708, n=0x40200b30) at eval.c:3005
#133 0x0805bd89 in rb_call0 (klass=1076539408, recv=1077115708, id=15209, oid=15209, argc=0, argv=0xbffee778, 
    body=0x40200b30, nosuper=0) at eval.c:5061
#134 0x0805c1d6 in rb_call (klass=1076539408, recv=1077115708, mid=15209, argc=2, argv=0xbffee770, scope=0) at eval.c:5154
#135 0x08057140 in rb_eval (self=1076493868, n=0x4021bc28) at eval.c:2991
#136 0x0805678e in rb_eval (self=1076493868, n=0x401a08f8) at eval.c:2804
#137 0x0805bd89 in rb_call0 (klass=1076315648, recv=1076493868, id=15121, oid=15121, argc=0, argv=0xbffef378, 
    body=0x401a08f8, nosuper=0) at eval.c:5061
#138 0x0805c1d6 in rb_call (klass=1076315648, recv=1076493868, mid=15121, argc=2, argv=0xbffef370, scope=1) at eval.c:5154
#139 0x0805733c in rb_eval (self=1076493868, n=0x401a9818) at eval.c:3005
#140 0x08057c3a in rb_eval (self=1076493868, n=0x401b56b8) at eval.c:3172
#141 0x0805bd89 in rb_call0 (klass=1076315648, recv=1076493868, id=15081, oid=15081, argc=1, argv=0xbffeff64, 
    body=0x401b56b8, nosuper=0) at eval.c:5061
#142 0x0805c1d6 in rb_call (klass=1076315648, recv=1076493868, mid=15081, argc=2, argv=0xbffeff60, scope=0) at eval.c:5154
#143 0x08057140 in rb_eval (self=1077115708, n=0x40204064) at eval.c:2991
#144 0x080604e7 in block_pass (self=1077115708, node=0x4020408c) at eval.c:7230
#145 0x08056216 in rb_eval (self=1077115708, n=0x4020426c) at eval.c:2705
#146 0x0805bd89 in rb_call0 (klass=1076314948, recv=1077115708, id=7273, oid=7273, argc=1, argv=0xbfff0cc0, 
    body=0x4020426c, nosuper=0) at eval.c:5061
#147 0x0805c1d6 in rb_call (klass=1076314948, recv=1077115708, mid=7273, argc=1, argv=0xbfff0cc0, scope=0) at eval.c:5154
#148 0x08057140 in rb_eval (self=1077115708, n=0x40203cf4) at eval.c:2991
#149 0x0805638c in rb_eval (self=1077115708, n=0x402038a8) at eval.c:2719
#150 0x0805bd89 in rb_call0 (klass=1076314948, recv=1077115708, id=7249, oid=7249, argc=0, argv=0xbfff1894, 
    body=0x402038a8, nosuper=0) at eval.c:5061
#151 0x0805c1d6 in rb_call (klass=1076314948, recv=1077115708, mid=7249, argc=1, argv=0xbfff1890, scope=0) at eval.c:5154
#152 0x08057140 in rb_eval (self=1080161144, n=0x401b7ddc) at eval.c:2991
#153 0x08059d47 in rb_yield_0 (val=401, self=1080161144, klass=0, flags=0, avalue=0) at eval.c:4190
#154 0x080566f4 in rb_eval (self=1076515068, n=0x402a5ed0) at eval.c:2794
#155 0x08056940 in rb_eval (self=1076515068, n=0x402a5cf0) at eval.c:2847
#156 0x0805bd89 in rb_call0 (klass=1076514868, recv=1076515068, id=10681, oid=10681, argc=0, argv=0xbfff2a88, 
    body=0x402a5cf0, nosuper=0) at eval.c:5061
#157 0x0805c1d6 in rb_call (klass=1076514868, recv=1076515068, mid=10681, argc=2, argv=0xbfff2a80, scope=0) at eval.c:5154
#158 0x08057140 in rb_eval (self=1080161144, n=0x402a59e4) at eval.c:2991
#159 0x080604e7 in block_pass (self=1080161144, node=0x402a59f8) at eval.c:7230
#160 0x08056216 in rb_eval (self=1080161144, n=0x402a5a98) at eval.c:2705
#161 0x0805bd89 in rb_call0 (klass=1075637536, recv=1080161144, id=10681, oid=10681, argc=0, argv=0xbfff37e4, 
    body=0x402a5a98, nosuper=0) at eval.c:5061
#162 0x0805c1d6 in rb_call (klass=1075637536, recv=1080161144, mid=10681, argc=1, argv=0xbfff37e0, scope=1) at eval.c:5154
#163 0x0805733c in rb_eval (self=1080161144, n=0x401b7e90) at eval.c:3005
---Type <return> to continue, or q <return> to quit---
#164 0x0805638c in rb_eval (self=1080161144, n=0x401b7dc8) at eval.c:2719
#165 0x08057c3a in rb_eval (self=1080161144, n=0x401b7d3c) at eval.c:3172
#166 0x0805678e in rb_eval (self=1080161144, n=0x401b87dc) at eval.c:2804
#167 0x0805bd89 in rb_call0 (klass=1077287888, recv=1080161144, id=6529, oid=6529, argc=0, argv=0xbfff4d54, 
    body=0x401b87dc, nosuper=0) at eval.c:5061
#168 0x0805c1d6 in rb_call (klass=1077287888, recv=1080161144, mid=6529, argc=1, argv=0xbfff4d50, scope=1) at eval.c:5154
#169 0x0805733c in rb_eval (self=1080161144, n=0x401b93d0) at eval.c:3005
#170 0x08056675 in rb_eval (self=1080161144, n=0x401b93bc) at eval.c:2778
#171 0x08057bf4 in rb_eval (self=1080161144, n=0x401b986c) at eval.c:3166
#172 0x0805bd89 in rb_call0 (klass=1077287888, recv=1080161144, id=10585, oid=10585, argc=0, argv=0x0, body=0x401b986c, 
    nosuper=0) at eval.c:5061
#173 0x0805c1d6 in rb_call (klass=1077287888, recv=1080161144, mid=10585, argc=0, argv=0x0, scope=0) at eval.c:5154
#174 0x08057140 in rb_eval (self=1077285408, n=0x402218e4) at eval.c:2991
#175 0x08059d47 in rb_yield_0 (val=1080161144, self=1077285408, klass=0, flags=0, avalue=0) at eval.c:4190
#176 0x080566f4 in rb_eval (self=1080261564, n=0x401a3ad0) at eval.c:2794
#177 0x08056da7 in rb_eval (self=1080261564, n=0x401a3aa8) at eval.c:2970
#178 0x08056047 in rb_eval (self=1080261564, n=0x401a3a30) at eval.c:2643
#179 0x08059d47 in rb_yield_0 (val=1077301168, self=1080261564, klass=0, flags=2, avalue=2) at eval.c:4190
#180 0x08064900 in rb_thread_yield (arg=1077301168, th=0x88ae0c8) at eval.c:9551
#181 0x08064671 in rb_thread_start_0 (fn=0x8064864 <rb_thread_yield>, arg=0x40364fb0, th=0x88ae0c8) at eval.c:9466
#182 0x080649ae in rb_thread_initialize (thread=1077301228, args=1077301168) at eval.c:9580
#183 0x0805b77e in rb_call0 (klass=1075622216, recv=1077301228, id=2961, oid=2961, argc=0, argv=0x0, body=0x401cb0e4, 
    nosuper=0) at eval.c:4805
#184 0x0805c1d6 in rb_call (klass=1075622216, recv=1077301228, mid=2961, argc=0, argv=0x0, scope=1) at eval.c:5154
#185 0x0805c479 in rb_funcall2 (recv=1077301228, mid=2961, argc=0, argv=0x0) at eval.c:5229
#186 0x0805e633 in rb_obj_call_init (obj=1077301228, argc=0, argv=0x0) at eval.c:6288
#187 0x08064935 in rb_thread_s_new (argc=0, argv=0x0, klass=1075622216) at eval.c:9564
#188 0x0805b77e in rb_call0 (klass=1075622196, recv=1075622216, id=3361, oid=3361, argc=0, argv=0x0, body=0x401cb10c, 
    nosuper=0) at eval.c:4805
#189 0x0805c1d6 in rb_call (klass=1075622196, recv=1075622216, mid=3361, argc=0, argv=0x0, scope=0) at eval.c:5154
#190 0x08057140 in rb_eval (self=1080261564, n=0x401a3c24) at eval.c:2991
#191 0x0805638c in rb_eval (self=1080261564, n=0x401a3a08) at eval.c:2719
#192 0x08056fcf in rb_eval (self=1080261564, n=0x401a39cc) at eval.c:2987
#193 0x08059d47 in rb_yield_0 (val=11, self=1080261564, klass=0, flags=0, avalue=0) at eval.c:4190
#194 0x08059f21 in rb_yield (val=11) at eval.c:4243
#195 0x0807cb8e in int_dotimes (num=17) at numeric.c:1775
#196 0x0805b7b1 in rb_call0 (klass=1075619176, recv=17, id=5393, oid=5393, argc=0, argv=0x0, body=0x401ca4a0, nosuper=0)
    at eval.c:4811
#197 0x0805c1d6 in rb_call (klass=1075619176, recv=17, mid=5393, argc=0, argv=0x0, scope=0) at eval.c:5154
---Type <return> to continue, or q <return> to quit---
#198 0x08057140 in rb_eval (self=1080261564, n=0x401a3c88) at eval.c:2991
#199 0x0805638c in rb_eval (self=1080261564, n=0x401a4084) at eval.c:2719
#200 0x0805bd89 in rb_call0 (klass=1075631916, recv=1080261564, id=11505, oid=11505, argc=0, argv=0x0, body=0x401a4084, 
    nosuper=0) at eval.c:5061
#201 0x0805c1d6 in rb_call (klass=1075631916, recv=1080261564, mid=11505, argc=0, argv=0x0, scope=0) at eval.c:5154
#202 0x08057140 in rb_eval (self=1077285408, n=0x40221ab0) at eval.c:2991
#203 0x0805638c in rb_eval (self=1077285408, n=0x40221b00) at eval.c:2719
#204 0x08055a2a in rb_eval (self=1077285408, n=0x402207a0) at eval.c:2455
#205 0x08059d47 in rb_yield_0 (val=1076993128, self=1077285408, klass=0, flags=0, avalue=0) at eval.c:4190
#206 0x080566f4 in rb_eval (self=1077285408, n=0x401a0524) at eval.c:2794
#207 0x08059d47 in rb_yield_0 (val=1076993288, self=1077285408, klass=0, flags=0, avalue=2) at eval.c:4190
#208 0x080566f4 in rb_eval (self=1077285408, n=0x401a2a90) at eval.c:2794
#209 0x08059d47 in rb_yield_0 (val=1076993348, self=1077285408, klass=0, flags=0, avalue=0) at eval.c:4190
#210 0x08059f21 in rb_yield (val=1076993348) at eval.c:4243
#211 0x0805aad0 in rb_ensure (b_proc=0x8059f08 <rb_yield>, data1=1076993348, e_proc=0x80712a0 <io_close>, data2=1076993348)
    at eval.c:4614
#212 0x08072273 in rb_io_s_open (argc=2, argv=0xbfffb7e0, klass=1075592476) at io.c:2270
#213 0x0805b77e in rb_call0 (klass=1075596296, recv=1075592476, id=7273, oid=7273, argc=2, argv=0xbfffb7e0, 
    body=0x401c4b90, nosuper=0) at eval.c:4805
#214 0x0805c1d6 in rb_call (klass=1075596296, recv=1075592476, mid=7273, argc=2, argv=0xbfffb7e0, scope=0) at eval.c:5154
#215 0x08057140 in rb_eval (self=1077285408, n=0x401a2b58) at eval.c:2991
#216 0x0805638c in rb_eval (self=1077285408, n=0x401a29b4) at eval.c:2719
#217 0x08056940 in rb_eval (self=1077285408, n=0x401a3120) at eval.c:2847
#218 0x08056940 in rb_eval (self=1077285408, n=0x401a25cc) at eval.c:2847
#219 0x08059d47 in rb_yield_0 (val=1, self=1077285408, klass=0, flags=0, avalue=0) at eval.c:4190
#220 0x08059f21 in rb_yield (val=1) at eval.c:4243
#221 0x0807cb8e in int_dotimes (num=3) at numeric.c:1775
#222 0x0805b7b1 in rb_call0 (klass=1075619176, recv=3, id=5393, oid=5393, argc=0, argv=0x0, body=0x401ca4a0, nosuper=0)
    at eval.c:4811
#223 0x0805c1d6 in rb_call (klass=1075619176, recv=3, mid=5393, argc=0, argv=0x0, scope=0) at eval.c:5154
#224 0x08057140 in rb_eval (self=1077285408, n=0x401a3300) at eval.c:2991
#225 0x0805638c in rb_eval (self=1077285408, n=0x401a3508) at eval.c:2719
#226 0x0805bd89 in rb_call0 (klass=1077287828, recv=1077285408, id=11569, oid=11569, argc=0, argv=0xbfffda98, 
    body=0x401a3508, nosuper=0) at eval.c:5061
#227 0x0805c1d6 in rb_call (klass=1077287828, recv=1077285408, mid=11569, argc=2, argv=0xbfffda90, scope=1) at eval.c:5154
#228 0x0805733c in rb_eval (self=1077285408, n=0x401a095c) at eval.c:3005
#229 0x0805638c in rb_eval (self=1077285408, n=0x401a0484) at eval.c:2719
#230 0x0805bd89 in rb_call0 (klass=1077287828, recv=1077285408, id=11745, oid=11745, argc=0, argv=0xbfffe664, 
    body=0x401a0484, nosuper=0) at eval.c:5061
---Type <return> to continue, or q <return> to quit---
#231 0x0805c1d6 in rb_call (klass=1077287828, recv=1077285408, mid=11745, argc=1, argv=0xbfffe660, scope=1) at eval.c:5154
#232 0x0805733c in rb_eval (self=1077285408, n=0x4022357c) at eval.c:3005
#233 0x0805638c in rb_eval (self=1077285408, n=0x4022393c) at eval.c:2719
#234 0x0805bd89 in rb_call0 (klass=1077287828, recv=1077285408, id=5049, oid=5049, argc=0, argv=0x0, body=0x4022393c, 
    nosuper=0) at eval.c:5061
#235 0x0805c1d6 in rb_call (klass=1077287828, recv=1077285408, mid=5049, argc=0, argv=0x0, scope=0) at eval.c:5154
#236 0x08057140 in rb_eval (self=1075632736, n=0x401be36c) at eval.c:2991
#237 0x08053420 in eval_node (self=1075632736, node=0x401be36c) at eval.c:1204
#238 0x080538d6 in ruby_exec () at eval.c:1369
#239 0x0805392d in ruby_run () at eval.c:1390
#240 0x08051e26 in main (argc=3, argv=0xbffff994, envp=0xbffff9a4) at main.c:50
(gdb) 
-- 
[田中 哲][たなか あきら][Tanaka Akira]