Bug #9945: Segmentation fault when defining recursive method

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0]
• Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN

[Soilent (Konstantin x)]

The following code causes segmentation fault, although I expect it to create stack overflow.

a = Object.new                                                                   
a.define_singleton_method(:meth) do
    puts '123'                                                                     
    a.meth                                                                         
  end                                                                              
a.meth

123
123
123
123
[REDUCTED]
123
123
smeth.rb:3: [BUG] Segmentation fault at 0x007fff54fcaff8
ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0]

-- Crash Report log information --------------------------------------------
   See Crash Report log file under the one of following:
     * ~/Library/Logs/CrashReporter
     * /Library/Logs/CrashReporter
     * ~/Library/Logs/DiagnosticReports
     * /Library/Logs/DiagnosticReports
   for more details.

-- Control frame information -----------------------------------------------
c:7086 p:---- s:28337 e:008336 CFUNC  :write
c:7085 p:---- s:28335 e:008334 CFUNC  :puts
c:7084 p:---- s:28333 e:008332 CFUNC  :puts
c:7083 p:0009 s:28329 e:008328 LAMBDA smeth.rb:3 [FINISH]
c:7082 p:0016 s:28325 e:008324 LAMBDA smeth.rb:4 [FINISH]
c:7081 p:0016 s:28321 e:008320 LAMBDA smeth.rb:4 [FINISH]
c:7080 p:0016 s:28317 e:008316 LAMBDA smeth.rb:4 [FINISH]
c:7079 p:0016 s:28313 e:008312 LAMBDA smeth.rb:4 [FINISH]
c:7078 p:0016 s:28309 e:008308 LAMBDA smeth.rb:4 [FINISH]
[REDUCTED]
c:0003 p:0016 s:0009 e:000008 LAMBDA smeth.rb:4 [FINISH]
c:0002 p:0028 s:0005 E:000730 EVAL   smeth.rb:6 [FINISH]
c:0001 p:0000 s:0002 E:000598 TOP    [FINISH]

smeth.rb:6:in `<main>'
smeth.rb:4:in `block in <main>'
[REDUCTED]
smeth.rb:3:in `block in <main>'
smeth.rb:3:in `puts'
smeth.rb:3:in `puts'
smeth.rb:3:in `write'

-- C level backtrace information -------------------------------------------
0   ruby                                0x000000010a5be446 rb_vm_bugreport + 134
1   ruby                                0x000000010a474373 report_bug + 307
2   ruby                                0x000000010a474234 rb_bug + 180
3   ruby                                0x000000010a5415e9 sigsegv + 153
4   libsystem_platform.dylib            0x00007fff8f4aa5aa _sigtramp + 26
5   ruby                                0x000000010a5c8108 rb_mutex_trylock + 8
6   ???                                 0x00007fa210a24f18 0x0 + 140334040502040

-- Other runtime information -----------------------------------------------

* Loaded script: smeth.rb

* Loaded features:

    0 enumerator.so
    1 /Users/Soilent/.rbenv/versions/2.1.2/lib/ruby/2.1.0/x86_64-darwin13.0/enc/encdb.bundle
    2 /Users/Soilent/.rbenv/versions/2.1.2/lib/ruby/2.1.0/x86_64-darwin13.0/enc/trans/transdb.bundle
    3 /Users/Soilent/.rbenv/versions/2.1.2/lib/ruby/2.1.0/x86_64-darwin13.0/rbconfig.rb
    4 /Users/Soilent/.rbenv/versions/2.1.2/lib/ruby/2.1.0/rubygems/compatibility.rb
    5 /Users/Soilent/.rbenv/versions/2.1.2/lib/ruby/2.1.0/rubygems/defaults.rb
    6 /Users/Soilent/.rbenv/versions/2.1.2/lib/ruby/2.1.0/rubygems/deprecate.rb
    7 /Users/Soilent/.rbenv/versions/2.1.2/lib/ruby/2.1.0/rubygems/errors.rb
    8 /Users/Soilent/.rbenv/versions/2.1.2/lib/ruby/2.1.0/rubygems/version.rb
    9 /Users/Soilent/.rbenv/versions/2.1.2/lib/ruby/2.1.0/rubygems/requirement.rb
   10 /Users/Soilent/.rbenv/versions/2.1.2/lib/ruby/2.1.0/rubygems/platform.rb
   11 /Users/Soilent/.rbenv/versions/2.1.2/lib/ruby/2.1.0/rubygems/basic_specification.rb
   12 /Users/Soilent/.rbenv/versions/2.1.2/lib/ruby/2.1.0/rubygems/stub_specification.rb
   13 /Users/Soilent/.rbenv/versions/2.1.2/lib/ruby/2.1.0/rubygems/util/stringio.rb
   14 /Users/Soilent/.rbenv/versions/2.1.2/lib/ruby/2.1.0/rubygems/specification.rb
   15 /Users/Soilent/.rbenv/versions/2.1.2/lib/ruby/2.1.0/rubygems/exceptions.rb
   16 /Users/Soilent/.rbenv/versions/2.1.2/lib/ruby/2.1.0/rubygems/core_ext/kernel_gem.rb
   17 thread.rb
   18 /Users/Soilent/.rbenv/versions/2.1.2/lib/ruby/2.1.0/x86_64-darwin13.0/thread.bundle
   19 /Users/Soilent/.rbenv/versions/2.1.2/lib/ruby/2.1.0/monitor.rb
   20 /Users/Soilent/.rbenv/versions/2.1.2/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb
   21 /Users/Soilent/.rbenv/versions/2.1.2/lib/ruby/2.1.0/rubygems.rb

[NOTE]
You may have encountered a bug in the Ruby interpreter or extension libraries.
Bug reports are welcome.
For details: http://www.ruby-lang.org/bugreport.html

[kernigh (George Koehler)]

My rubies don't reproduce this bug:

$ ruby -v
ruby 2.2.0dev (2014-06-07 trunk 46369) [x86_64-openbsd5.5]
$ ruby21 -v
ruby 2.1.0p0 (2013-12-25 revision 44422) [x86_64-openbsd]

They raise SystemStackError:

123
123
smeth.rb:3: stack level too deep (SystemStackError)

Perhaps this bug only happens with Darwin (Mac OS X)?

[nobu (Nobuyoshi Nakada)]

• Is duplicate of Bug #9454: The define_method(:class) segfault added

[nobu (Nobuyoshi Nakada)]

• Description updated (diff)
• Status changed from Open to Closed

[nagachika (Tomoyuki Chikanaga)]

• Related to Bug #10218: 手続きを再帰するとSegmentation faultが発生する added