Bug #14273
Updated by nobu (Nobuyoshi Nakada) about 6 years ago
```ruby ``` def foo(x) unless x while !x return nil end end end foo(nil) ``` ``` (irb):18: [BUG] Stack consistency error (sp: 100, bp: 101) ruby 2.5.0p0 (2017-12-25 revision 61468) [x86_64-darwin17] -- Crash Report log information -------------------------------------------- See Crash Report log file under the one of following: * ~/Library/Logs/DiagnosticReports * /Library/Logs/DiagnosticReports for more details. Don't forget to include the above Crash Report log file in bug reports. -- Control frame information ----------------------------------------------- c:0020 p:0013 s:0100 e:000100 ------ (irb):18 c:0019 p:0005 s:0096 e:000095 EVAL (irb):22 [FINISH] c:0018 p:---- s:0093 e:000092 CFUNC :eval c:0017 p:0021 s:0085 e:000084 METHOD /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb/workspace.rb:85 c:0016 p:0021 s:0077 e:000075 METHOD /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb/context.rb:380 c:0015 p:0017 s:0070 e:000069 BLOCK /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb.rb:491 c:0014 p:0025 s:0060 e:000059 METHOD /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb.rb:621 c:0013 p:0008 s:0054 e:000053 BLOCK /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb.rb:488 c:0012 p:0102 s:0049 e:000048 BLOCK /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb/ruby-lex.rb:246 [FINISH] c:0011 p:---- s:0045 e:000044 CFUNC :loop c:0010 p:0006 s:0041 e:000040 BLOCK /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb/ruby-lex.rb:232 [FINISH] c:0009 p:---- s:0038 e:000037 CFUNC :catch c:0008 p:0012 s:0033 e:000032 METHOD /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb/ruby-lex.rb:231 c:0007 p:0029 s:0029 E:000690 METHOD /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb.rb:487 c:0006 p:0005 s:0025 e:000024 BLOCK /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb.rb:428 [FINISH] c:0005 p:---- s:0022 e:000021 CFUNC :catch c:0004 p:0063 s:0017 E:0007f8 METHOD /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb.rb:427 c:0003 p:0102 s:0012 e:000011 METHOD /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb.rb:383 c:0002 p:0019 s:0006 e:000005 EVAL /Users/cody/.rubies/ruby-2.5.0/bin/irb:11 [FINISH] c:0001 p:0000 s:0003 E:0000d0 (none) [FINISH] -- Ruby level backtrace information ---------------------------------------- /Users/cody/.rubies/ruby-2.5.0/bin/irb:11:in `<main>' /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb.rb:383:in `start' /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb.rb:427:in `run' /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb.rb:427:in `catch' /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb.rb:428:in `block in run' /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb.rb:487:in `eval_input' /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb/ruby-lex.rb:231:in `each_top_level_statement' /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb/ruby-lex.rb:231:in `catch' /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb/ruby-lex.rb:232:in `block in each_top_level_statement' /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb/ruby-lex.rb:232:in `loop' /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb/ruby-lex.rb:246:in `block (2 levels) in each_top_level_statement' /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb.rb:488:in `block in eval_input' /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb.rb:621:in `signal_status' /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb.rb:491:in `block (2 levels) in eval_input' /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb/context.rb:380:in `evaluate' /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb/workspace.rb:85:in `evaluate' /Users/cody/.rubies/ruby-2.5.0/lib/ruby/2.5.0/irb/workspace.rb:85:in `eval' (irb):22:in `irb_binding' (irb):18:in `foo' -- C level backtrace information ------------------------------------------- 0 ruby 0x0000000103409dd7 rb_vm_bugreport + 135 1 ruby 0x000000010328eca8 rb_bug + 472 2 ruby 0x00000001033e78d3 vm_exec_core + 15955 3 ruby 0x00000001033f7b8e vm_exec + 142 4 ruby 0x0000000103405fda eval_string_with_cref + 1418 5 ruby 0x00000001033f385e rb_f_eval + 334 6 ruby 0x00000001033fd2be vm_call_cfunc + 286 7 ruby 0x00000001033e6a24 vm_exec_core + 12196 8 ruby 0x00000001033f7b8e vm_exec + 142 9 ruby 0x00000001034052b4 invoke_block_from_c_bh + 372 10 ruby 0x0000000103406323 loop_i + 35 11 ruby 0x00000001032991a7 rb_rescue2 + 311 12 ruby 0x00000001033fd2be vm_call_cfunc + 286 13 ruby 0x00000001033e5f84 vm_exec_core + 9476 14 ruby 0x00000001033f7b8e vm_exec + 142 15 ruby 0x00000001034052b4 invoke_block_from_c_bh + 372 16 ruby 0x00000001034062be catch_i + 78 17 ruby 0x00000001033f49dd vm_catch_protect + 173 18 ruby 0x00000001033f5092 rb_f_catch + 66 19 ruby 0x00000001033fd2be vm_call_cfunc + 286 20 ruby 0x00000001033e5f84 vm_exec_core + 9476 21 ruby 0x00000001033f7b8e vm_exec + 142 22 ruby 0x00000001034052b4 invoke_block_from_c_bh + 372 23 ruby 0x00000001034062be catch_i + 78 24 ruby 0x00000001033f49dd vm_catch_protect + 173 25 ruby 0x00000001033f5092 rb_f_catch + 66 26 ruby 0x00000001033fd2be vm_call_cfunc + 286 27 ruby 0x00000001033e5f84 vm_exec_core + 9476 28 ruby 0x00000001033f7b8e vm_exec + 142 29 ruby 0x00000001032989d1 ruby_exec_internal + 177 30 ruby 0x00000001032988c8 ruby_run_node + 56 31 ruby 0x000000010321e11f main + 79 ```