[ruby-core:60466] [ruby-trunk - Bug #9461] Segfault

Issue #9461 has been updated by Usaku NAKAMURA.

Backport changed from 1.9.3: UNKNOWN, 2.0.0: UNKNOWN, 2.1: UNKNOWN to 1.9.3: DONTNEED, 2.0.0: DONTNEED, 2.1: UNKNOWN

----------------------------------------
Bug #9461: Segfault
https://bugs.ruby-lang.org/issues/9461#change-44931

* Author: Agis Anastasopoulos
* Status: Closed
* Priority: Normal
* Assignee: Koichi Sasada
* Category: core
* Target version: current: 2.2.0
* ruby -v: ruby 2.1.0p0 (2013-12-25 revision 44422) [x86_64-darwin12.0]
* Backport: 1.9.3: DONTNEED, 2.0.0: DONTNEED, 2.1: UNKNOWN
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The following causes a segfault in 2.1.0, but works fine in 2.0 and 1.9:

    module A
      def require(_)
        super
      end
    end

    class Object
      include A
    end

    ['foo'].map(&method(:require))

Stack trace: 

    [BUG] Segmentation fault at 0x00000000000018
    ruby 2.1.0p0 (2013-12-25 revision 44422) [x86_64-darwin12.0]
    -- 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:0005 p:0010 s:0015 e:000012 METHOD test.rb:3 [FINISH]
    c:0004 p:---- s:0009 e:000008 IFUNC
    c:0003 p:---- s:0007 e:000006 CFUNC  :map
    c:0002 p:0033 s:0004 E:001308 EVAL   test.rb:11 [FINISH]
    c:0001 p:0000 s:0002 E:002488 TOP    [FINISH]
    test.rb:11:in `<main>'
    test.rb:11:in `map'
    test.rb:3:in `require'
    -- C level backtrace information -------------------------------------------
    0   ruby                                0x00000001002ea5ed rb_vm_bugreport + 141
    1   ruby                                0x00000001001b571d report_bug + 285
    2   ruby                                0x00000001001b55f3 rb_bug + 179
    3   ruby                                0x0000000100273d69 sigsegv + 153
    4   libsystem_c.dylib                   0x00007fff8396590a _sigtramp + 26
    5   ruby                                0x00000001002d8435 rb_method_entry_get_without_cache + 181
    6   ???                                 0x0000000100a080f0 0x0 + 4305486064
    -- Other runtime information -----------------------------------------------
    * Loaded script: test.rb
    * Loaded features:
    0 enumerator.so
    1 enc/encdb.so
    2 enc/trans/transdb.so
    3 /Users/agis/.rvm/rubies/ruby-2.1.0/lib/ruby/2.1.0/x86_64-darwin12.0/rbconfig.rb
    4 /Users/agis/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/compatibility.rb
    5 /Users/agis/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/defaults.rb
    6 /Users/agis/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/deprecate.rb
    7 /Users/agis/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/errors.rb
    8 /Users/agis/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/version.rb
    9 /Users/agis/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/requirement.rb
    10 /Users/agis/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/platform.rb
    11 /Users/agis/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/basic_specification.rb
    12 /Users/agis/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/stub_specification.rb
    13 /Users/agis/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/util/stringio.rb
    14 /Users/agis/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/specification.rb
    15 /Users/agis/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/exceptions.rb
    16 /Users/agis/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_gem.rb
    17 thread.rb
    18 thread.so
    19 /Users/agis/.rvm/rubies/ruby-2.1.0/lib/ruby/2.1.0/monitor.rb
    20 /Users/agis/.rvm/rubies/ruby-2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb
    21 /Users/agis/.rvm/rubies/ruby-2.1.0/lib/ruby/site_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
    Abort trap: 6



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