Issue #8634 has been reported by phasis68 (Heesob Park).

----------------------------------------
Bug #8634: Segfault with sprintf of force_encoding('UTF-16LE') on Windows
https://bugs.ruby-lang.org/issues/8634

Author: phasis68 (Heesob Park)
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 
ruby -v: ruby 2.1.0dev (2013-07-14 trunk 41961) [i386-mingw32]
Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN


The revision r41937 raised segfault in test_m17n.rb

http://ci.rubyinstaller.org/job/ruby-trunk-x64-test-all/1590/console

Here is a simplified test case.

C:\work>ruby -e 'p("%s".force_encoding("UTF-16LE")%"test")'
-e:1: [BUG] Segmentation fault
ruby 2.1.0dev (2013-07-14 trunk 41961) [i386-mingw32]

-- Control frame information -----------------------------------------------
c:0003 p:---- s:0008 e:000007 CFUNC  :p
c:0002 p:0015 s:0004 E:0007e4 EVAL   -e:1 [FINISH]
c:0001 p:0000 s:0002 E:0022b4 TOP    [FINISH]

-e:1:in `<main>'
-e:1:in `p'

-- C level backtrace information -------------------------------------------
C:\Windows\SysWOW64\ntdll.dll(ZwWaitForSingleObject+0x15) [0x7701F8B1]
C:\Windows\syswow64\kernel32.dll(WaitForSingleObjectEx+0x43) [0x75151194]
C:\Windows\syswow64\kernel32.dll(WaitForSingleObject+0x12) [0x75151148]
c:\usr\local\bin\msvcrt-ruby210.dll(rb_vm_bugreport+0xa7) [0x6D3811B7]
c:\usr\local\bin\msvcrt-ruby210.dll(rb_name_err_mesg_new+0x69d) [0x6D2435AD]
c:\usr\local\bin\msvcrt-ruby210.dll(rb_bug+0x2e) [0x6D2443AE]
c:\usr\local\bin\msvcrt-ruby210.dll(rb_check_safe_str+0x110) [0x6D305760] 
 [0x00401866]
C:\Windows\SysWOW64\ntdll.dll(RtlKnownExceptionFilter+0xb7) [0x770774DF]

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

* Loaded script: -e

* Loaded features:

    0 enumerator.so
    1 c:/usr/local/lib/ruby/2.1.0/i386-mingw32/enc/encdb.so
    2 c:/usr/local/lib/ruby/2.1.0/i386-mingw32/enc/cp949.so
    3 c:/usr/local/lib/ruby/2.1.0/i386-mingw32/enc/trans/transdb.so
    4 c:/usr/local/lib/ruby/2.1.0/i386-mingw32/rbconfig.rb
    5 c:/usr/local/lib/ruby/2.1.0/rubygems/compatibility.rb
    6 c:/usr/local/lib/ruby/2.1.0/rubygems/defaults.rb
    7 c:/usr/local/lib/ruby/2.1.0/rubygems/deprecate.rb
    8 c:/usr/local/lib/ruby/2.1.0/rubygems/errors.rb
    9 c:/usr/local/lib/ruby/2.1.0/rubygems/version.rb
   10 c:/usr/local/lib/ruby/2.1.0/rubygems/requirement.rb
   11 c:/usr/local/lib/ruby/2.1.0/rubygems/platform.rb
   12 c:/usr/local/lib/ruby/2.1.0/rubygems/basic_specification.rb
   13 c:/usr/local/lib/ruby/2.1.0/rubygems/stub_specification.rb
   14 c:/usr/local/lib/ruby/2.1.0/rubygems/specification.rb
   15 c:/usr/local/lib/ruby/2.1.0/rubygems/exceptions.rb
   16 c:/usr/local/lib/ruby/2.1.0/i386-mingw32/enc/utf_16le.so
   17 c:/usr/local/lib/ruby/2.1.0/i386-mingw32/enc/trans/utf_16_32.so
   18 c:/usr/local/lib/ruby/2.1.0/rubygems/core_ext/kernel_gem.rb
   19 c:/usr/local/lib/ruby/2.1.0/thread.rb
   20 c:/usr/local/lib/ruby/2.1.0/monitor.rb
   21 c:/usr/local/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb
   22 c:/usr/local/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


This application has requested the Runtime to terminate it in an unusual way.



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