Issue #3976 has been updated by Hiroshi Nakamura.

Status changed from Feedback to Third Party's Issue

It looks like ruby-debug19 issue. Please see https://redmine.ruby-lang.org/issues/3826#note-6
I close this as duplicated.
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Bug #3976: ruby/1.9.1/webrick/server.rb:90: [BUG] Segmentation fault
http://redmine.ruby-lang.org/issues/3976

Author: Fris Sony
Status: Third Party's Issue
Priority: Normal
Assignee: Hiroshi Nakamura
Category: 
Target version: 1.9.3
ruby -v: ruby 1.9.2p0 (2010-08-18) [i386-mingw32]


=begin
 Installed Ruby 1.9.2p0 (from http://rubyforge.org/frs/download.php/72170/rubyinstaller-1.9.2-p0.exe)
 on Windows 7 x64.
 Create a simple Rails (2.3.8) app using mysql, and debuggin through NetBeans 6.9.
 A few times the app worked fine and suddenly on refreshing a page the bug appeared.
 Never seen this bug when using JRuby 1.5.1 which comes with NetBeans 6.9.
 Bug data:
 
 Processing AboutController#index (for 127.0.0.1 at 2010-10-22 13:18:37) [GET]
 Rendering template within layouts/application
 Rendering about/index
 Completed in 9ms (View: 5, DB: 0) | 200 OK [http://localhost/]
 host/]
   SQL (1.0ms)   SET NAMES 'utf8'
   SQL (4.9ms)   SET SQL_AUTO_IS_NULL=0
 
 
 Processing AboutController#index (for 127.0.0.1 at 2010-10-22 13:18:44) [GET]
 Rendering template within layouts/application
 Rendering about/index
 Completed in 9ms (View: 6, DB: 6) | 200 OK [http://localhost/]
 lhost/]
 C:/dev/Ruby192/lib/ruby/1.9.1/webrick/server.rb:90: [BUG] Segmentation fault
 ruby 1.9.2p0 (2010-08-18) [i386-mingw32]
 
 -- control frame ----------
 c:0019 p:---- s:0083 b:0083 l:000082 d:000082 CFUNC  :select
 c:0018 p:0106 s:0076 b:0076 l:00181c d:00237c BLOCK  C:/dev/Ruby192/lib/ruby/1.9.1/webrick/server.rb:90
 c:0017 p:0007 s:0070 b:0070 l:000069 d:000069 METHOD C:/dev/Ruby192/lib/ruby/1.9.1/webrick/server.rb:22
 c:0016 p:0063 s:0067 b:0067 l:00181c d:00181c METHOD C:/dev/Ruby192/lib/ruby/1.9.1/webrick/server.rb:81
 c:0015 p:0126 s:0062 b:0062 l:001db0 d:001db0 METHOD C:/dev/Ruby192/lib/ruby/gems/1.9.1/gems/rack-1.1.0/lib/rack/handler/webrick.rb:14
 c:0014 p:0806 s:0056 b:0056 l:0007c0 d:0007c0 TOP    C:/dev/Ruby192/lib/ruby/gems/1.9.1/gems/rails-2.3.8/lib/commands/server.rb:111
 c:0013 p:---- s:0045 b:0045 l:000044 d:000044 FINISH
 c:0012 p:---- s:0043 b:0043 l:000042 d:000042 CFUNC  :require
 c:0011 p:0013 s:0039 b:0039 l:000038 d:000038 METHOD <internal:lib/rubygems/custom_require>:29
 c:0010 p:0038 s:0034 b:0034 l:000033 d:000033 TOP    D:/myapp-src/script/server:3
 c:0009 p:---- s:0032 b:0032 l:000031 d:000031 FINISH
 c:0008 p:---- s:0030 b:0030 l:000029 d:000029 CFUNC  :debug_load
 c:0007 p:0166 s:0024 b:0024 l:000023 d:000023 METHOD C:/dev/Ruby192/lib/ruby/gems/1.9.1/gems/ruby-debug-ide-0.4.9/lib/ruby-debug-ide.rb:119
 c:0006 p:0421 s:0019 b:0019 l:00023c d:00023c TOP    C:/dev/Ruby192/lib/ruby/gems/1.9.1/gems/ruby-debug-ide-0.4.9/bin/rdebug-ide:87
 c:0005 p:---- s:0013 b:0013 l:000012 d:000012 FINISH
 c:0004 p:---- s:0011 b:0011 l:000010 d:000010 CFUNC  :load
 c:0003 p:0127 s:0007 b:0007 l:0022a4 d:002530 EVAL   C:/dev/Ruby192/bin/rdebug-ide:19
 c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH
 c:0001 p:0000 s:0002 b:0002 l:0022a4 d:0022a4 TOP   
 ---------------------------
 -- Ruby level backtrace information ----------------------------------------
 C:/dev/Ruby192/bin/rdebug-ide:19:in `<main>'
 C:/dev/Ruby192/bin/rdebug-ide:19:in `load'
 C:/dev/Ruby192/lib/ruby/gems/1.9.1/gems/ruby-debug-ide-0.4.9/bin/rdebug-ide:87:in `<top (required)>'
 C:/dev/Ruby192/lib/ruby/gems/1.9.1/gems/ruby-debug-ide-0.4.9/lib/ruby-debug-ide.rb:119:in `debug_program'
 C:/dev/Ruby192/lib/ruby/gems/1.9.1/gems/ruby-debug-ide-0.4.9/lib/ruby-debug-ide.rb:119:in `debug_load'
 D:/myapp-src/script/server:3:in `<top (required)>'
 <internal:lib/rubygems/custom_require>:29:in `require'
 <internal:lib/rubygems/custom_require>:29:in `require'
 C:/dev/Ruby192/lib/ruby/gems/1.9.1/gems/rails-2.3.8/lib/commands/server.rb:111:in `<top (required)>'
 C:/dev/Ruby192/lib/ruby/gems/1.9.1/gems/rack-1.1.0/lib/rack/handler/webrick.rb:14:in `run'
 C:/dev/Ruby192/lib/ruby/1.9.1/webrick/server.rb:81:in `start'
 C:/dev/Ruby192/lib/ruby/1.9.1/webrick/server.rb:22:in `start'
 C:/dev/Ruby192/lib/ruby/1.9.1/webrick/server.rb:90:in `block in start'
 C:/dev/Ruby192/lib/ruby/1.9.1/webrick/server.rb:90:in `select'
 
 [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.
 Please contact the application's support team for more information.
=end



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