[ruby-dev:42964] [Ruby 1.9-Bug#4238] GC.stress 下で OptionParser で設定のない引数をパースさせると core

チケット #4238 が更新されました。 (by Tomoyuki Chikanaga)


Ubuntu 上で gcc-4.3.3, -O3 つきでビルドした ruby で再現しました。
再現コードを削ってみたところ以下でも起きました。

% cat bug4238.rb
def a(&blk)
  blk.call do |i| p i end
end

GC.stress = true
a(&([0,1].method(:each)))

% ./ruby-trunk -v bug4238.rb
ruby 1.9.3dev (2011-01-06 trunk 30474) [i686-linux]
0
bug4238.rb:2: [BUG] Segmentation fault
ruby 1.9.3dev (2011-01-06 trunk 30474) [i686-linux]

-- Control frame information -----------------------------------------------
c:0009 p:0012 s:0024 b:0022 l:000658 d:000021 BLOCK  bug4238.rb:2
c:0008 p:---- s:0019 b:0019 l:000018 d:000018 FINISH
c:0007 p:---- s:0017 b:0017 l:000016 d:000016 CFUNC  :each
c:0006 p:---- s:0015 b:0015 l:000408 d:000014 IFUNC
c:0005 p:---- s:0013 b:0013 l:000012 d:000012 CFUNC  :call
c:0004 p:0012 s:0010 b:0010 l:001e10 d:001e10 METHOD bug4238.rb:2
c:0003 p:0056 s:0006 b:0006 l:000bdc d:000e34 EVAL   bug4238.rb:6
c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH
c:0001 p:0000 s:0002 b:0002 l:000bdc d:000bdc TOP

-- Ruby level backtrace information ----------------------------------------
bug4238.rb:6:in `<main>'
bug4238.rb:2:in `a'
bug4238.rb:2:in `call'
bug4238.rb:2:in `each'
bug4238.rb:2:in `block in a'

-- C level backtrace information -------------------------------------------
Unexpected directory number 1 in ./ruby-trunk
Unexpected directory number 1 in ./ruby-trunk
Unexpected directory number 1 in ./ruby-trunk
Unexpected directory number 1 in ./ruby-trunk
Unexpected directory number 1 in ./ruby-trunk
./ruby-trunk [0x8172505] vm_dump.c:797
./ruby-trunk [0x81b4d71] error.c:249
./ruby-trunk(rb_bug+0x28) [0x81b4e08] error.c:266
./ruby-trunk [0x80feed5] signal.c:624
[0xb78d0410]
./ruby-trunk [0x8168524] vm_insnhelper.c:1344
./ruby-trunk [0x8168ecc] vm.c:1150
./ruby-trunk(rb_yield+0x4f) [0x817073f] vm.c:591
./ruby-trunk(rb_ary_each+0x41) [0x81838e1] array.c:1474
./ruby-trunk [0x816a271] vm_eval.c:79
./ruby-trunk(rb_method_call+0x151) [0x805f1f1] proc.c:1431
./ruby-trunk [0x805f4b1] proc.c:1816
./ruby-trunk [0x81610f1] vm_insnhelper.c:729
./ruby-trunk [0x816f1f6] vm.c:607
./ruby-trunk [0x8061e05] proc.c:559
./ruby-trunk [0x815cb3d] vm_insnhelper.c:316
./ruby-trunk [0x8161eb9] vm_insnhelper.c:403
./ruby-trunk [0x81636ac] insns.def:1010
./ruby-trunk [0x8168ecc] vm.c:1150
./ruby-trunk(rb_iseq_eval_main+0x1da) [0x816922a] vm.c:1391
./ruby-trunk [0x805b772] eval.c:225
./ruby-trunk(ruby_run_node+0x32) [0x805d242] eval.c:272
./ruby-trunk [0x805ab40] main.c:38
/lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe5) [0xb76f2775]
./ruby-trunk [0x805aa41] ../sysdeps/i386/elf/start.S:119

----------------------------------------
http://redmine.ruby-lang.org/issues/show/4238

----------------------------------------
http://redmine.ruby-lang.org