[ruby-dev:47247] [ruby-trunk - Bug #953] 深い入れ子の配列の取り扱いで落ちる

Issue #953 has been updated by naruse (Yui NARUSE).


SystemStackError になることを確認しました

%  ./ruby -v nest.rb
ruby 2.1.0dev (2013-04-11 trunk 40238) [x86_64-freebsd9.1]
nest.rb:5: stack level too deep (SystemStackError)
----------------------------------------
Bug #953: 深い入れ子の配列の取り扱いで落ちる
https://bugs.ruby-lang.org/issues/953#change-38445

Author: tadf (tadayoshi funaba)
Status: Closed
Priority: Normal
Assignee: ko1 (Koichi Sasada)
Category: 
Target version: 2.0.0
ruby -v: ruby 1.9.1 (2008-12-30 patchlevel-5000 trunk 21202) [i686-linux]


=begin
 以下のスクリプトを実行すると Segmentation fault で落ちました。
 
 $ cat ./nest.rb 
 a = [0]
 10000.times do
   a = [a]
 end
 p a
 
 $ ./ruby -v ./nest.rb 
 ruby 1.9.1 (2008-12-30 patchlevel-5000 trunk 21202) [i686-linux]
 Segmentation fault
 
 (gdb) bt
 #0  0x08111407 in vm_get_ruby_level_next_cfp (th=0x81ae758, cfp=0xb7c734a8)
     at vm.c:131
 #1  0x0811159b in rb_sourceline () at vm.c:757
 #2  0x0814ead7 in rb_bug (fmt=0x81737d3 "Segmentation fault") at error.c:230
 #3  0x080d49e6 in sigsegv (sig=11, info=0x82152fc, ctx=0x821537c)
     at signal.c:600
 #4  <signal handler called>
 #5  frame_func_id (cfp=0xb7c734a8) at eval.c:730
 #6  0x0812696a in rb_exec_recursive (func=0x812d040 <inspect_ary>, 
     obj=135994660, arg=0) at thread.c:3237
 #7  0x0812d01a in rb_ary_inspect (ary=4) at array.c:1574
 #8  0x0811d854 in vm_call0 (th=0x81ae758, klass=136124880, recv=135994660, 
     id=760, oid=760, argc=0, argv=0x0, body=0x81d1818, nosuper=0)
     at vm_eval.c:70
 #9  0x0811ddb2 in rb_funcall (recv=<value optimized out>, mid=760, n=0)
     at vm_eval.c:248
 #10 0x080840aa in rb_inspect (obj=135994660) at object.c:312
 #11 0x0812d0f3 in inspect_ary (ary=135994500, dummy=0, recur=0) at array.c:1550
 #12 0x08126b5f in rb_exec_recursive (func=0x812d040 <inspect_ary>, 
     obj=135994500, arg=0) at thread.c:3273
 #13 0x0812d01a in rb_ary_inspect (ary=4) at array.c:1574
 #14 0x0811d854 in vm_call0 (th=0x81ae758, klass=136124880, recv=135994500, 
     id=760, oid=760, argc=0, argv=0x0, body=0x81d1818, nosuper=0)
 ---Type <return> to continue, or q <return> to quit---
=end



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