Webrick在第一页加载时出现分段错误崩溃

Question

我正在尝试在我的开发环境（Ubuntu 14.04）上运行Ruby on Rails应用程序。 rails s不报告错误和使用WEBrick似乎正常启动：但是

$ rails s 
=> Booting WEBrick 
=> Rails 3.2.13 application starting in development on http://0.0.0.0:3000 
=> Call with -d to detach 
=> Ctrl-C to shutdown server 
[2015-04-30 08:52:32] INFO WEBrick 1.3.1 
[2015-04-30 08:52:32] INFO ruby 1.9.3 (2014-11-13) [x86_64-linux] 
[2015-04-30 08:52:32] INFO WEBrick::HTTPServer#start: pid=15523 port=3000 

，我曾经尝试通过Web浏览器使用WEBrick，出现以下错误崩溃来访问应用程序：

/home/desousa/.rvm/rubies/ruby-1.9.3-p551/lib/ruby/1.9.1/webrick/server.rb:98: [BUG] Segmentation fault 
ruby 1.9.3p551 (2014-11-13 revision 48407) [x86_64-linux] 

-- Control frame information ----------------------------------------------- 
c:0016 p:---- s:0060 b:0060 l:000059 d:000059 CFUNC :select 
c:0015 p:0106 s:0053 b:0053 l:000043 d:000052 BLOCK /home/desousa/.rvm/rubies/ruby-1.9.3-p551/lib/ruby/1.9.1/webrick/server.rb:98 
c:0014 p:0007 s:0047 b:0047 l:000046 d:000046 METHOD /home/desousa/.rvm/rubies/ruby-1.9.3-p551/lib/ruby/1.9.1/webrick/server.rb:22 
c:0013 p:0063 s:0044 b:0044 l:000043 d:000043 METHOD /home/desousa/.rvm/rubies/ruby-1.9.3-p551/lib/ruby/1.9.1/webrick/server.rb:89 
c:0012 p:0118 s:0039 b:0039 l:000038 d:000038 METHOD /home/desousa/.rvm/gems/ruby-1.9.3-p551/gems/rack-1.4.5/lib/rack/handler/webrick.rb:13 
c:0011 p:0294 s:0034 b:0034 l:002200 d:002200 METHOD /home/desousa/.rvm/gems/ruby-1.9.3-p551/gems/rack-1.4.5/lib/rack/server.rb:268 
c:0010 p:0231 s:0028 b:0028 l:0011a0 d:0011a0 METHOD /home/desousa/.rvm/gems/ruby-1.9.3-p551/gems/railties-3.2.13/lib/rails/commands/server.rb:70 
c:0009 p:0063 s:0024 b:0024 l:000015 d:000023 BLOCK /home/desousa/.rvm/gems/ruby-1.9.3-p551/gems/railties-3.2.13/lib/rails/commands.rb:55 
c:0008 p:---- s:0021 b:0021 l:000020 d:000020 FINISH 
c:0007 p:---- s:0019 b:0019 l:000018 d:000018 CFUNC :tap 
c:0006 p:0702 s:0016 b:0016 l:000015 d:000015 TOP /home/desousa/.rvm/gems/ruby-1.9.3-p551/gems/railties-3.2.13/lib/rails/commands.rb:50 
c:0005 p:---- s:0012 b:0012 l:000011 d:000011 FINISH 
c:0004 p:---- s:0010 b:0010 l:000009 d:000009 CFUNC :require 
c:0003 p:0061 s:0006 b:0006 l:0016e8 d:001838 EVAL script/rails:6 
c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH 
c:0001 p:0000 s:0002 b:0002 l:0016e8 d:0016e8 TOP 

-- Ruby level backtrace information ---------------------------------------- 
script/rails:6:in `<main>' 
script/rails:6:in `require' 
/home/desousa/.rvm/gems/ruby-1.9.3-p551/gems/railties-3.2.13/lib/rails/commands.rb:50:in `<top (required)>' 
/home/desousa/.rvm/gems/ruby-1.9.3-p551/gems/railties-3.2.13/lib/rails/commands.rb:50:in `tap' 
/home/desousa/.rvm/gems/ruby-1.9.3-p551/gems/railties-3.2.13/lib/rails/commands.rb:55:in `block in <top (required)>' 
/home/desousa/.rvm/gems/ruby-1.9.3-p551/gems/railties-3.2.13/lib/rails/commands/server.rb:70:in `start' 
/home/desousa/.rvm/gems/ruby-1.9.3-p551/gems/rack-1.4.5/lib/rack/server.rb:268:in `start' 
/home/desousa/.rvm/gems/ruby-1.9.3-p551/gems/rack-1.4.5/lib/rack/handler/webrick.rb:13:in `run' 
/home/desousa/.rvm/rubies/ruby-1.9.3-p551/lib/ruby/1.9.1/webrick/server.rb:89:in `start' 
/home/desousa/.rvm/rubies/ruby-1.9.3-p551/lib/ruby/1.9.1/webrick/server.rb:22:in `start' 
/home/desousa/.rvm/rubies/ruby-1.9.3-p551/lib/ruby/1.9.1/webrick/server.rb:98:in `block in start' 
/home/desousa/.rvm/rubies/ruby-1.9.3-p551/lib/ruby/1.9.1/webrick/server.rb:98:in `select' 

-- C level backtrace information ------------------------------------------- 
SEGV received in SEGV handler 
Aborted (core dumped) 

的软件版本我我在这个项目中使用：

$ ruby -v 
ruby 1.9.3p551 (2014-11-13 revision 48407) [x86_64-linux] 

$ rails -v 
Rails 3.2.13 

这可能是什么原因？或者我能理解其原因吗？

Answer 1

我对Webrick也有一些问题，导致segementation故障。我只在一个特定的ubuntu盒子上有过这个，但是我没有在其他ubuntu盒子上使用完全相同的设置发生同样的错误。最近我用thin解决了它。要做到这一点添加到您的Gemfile：

gem 'thin' 

然后运行

bundle install 
rails server