# WEBrick Bad File Descriptor Error **URL:** \ **Category:** Rails\ **Created:** [February 25, 2006, 5:11pm UTC](https://www.ruby-forum.com/t/webrick-bad-file-descriptor-error/54179 "2006-02-25T17:11:49Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![afewtips](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/76d3ee/32.png) [@afewtips](https://www.ruby-forum.com/u/afewtips)\ **Post date:** [February 25, 2006, 5:11pm UTC](https://www.ruby-forum.com/t/webrick-bad-file-descriptor-error/54179/1 "2006-02-25T17:11:49Z")
All of a sudden I have a wierd error when running script/server on a Windows XP box. Webrick is failing with a bad file descriptor error. I’m sure it’s conflicting with something in my enviornment, but I cannot figure out what. I googled the issue and haven’t been able to find any answer for it. Although, I did find a workaround. If I’m using a port above 8000 by doing script/server --port=8000 it works fine. I am not running a firewall on this machine, either. The only change I made was going from 1.82 to 1.84. I first went to InstantRails, because I’ve been running that successfully on another machine. I then tried the One-Click installer. Same results on both. Any ideas? Michael ---
**Author:** ![afewtips](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/76d3ee/32.png) [@afewtips](https://www.ruby-forum.com/u/afewtips)\ **Post date:** [February 26, 2006, 3:17am UTC](https://www.ruby-forum.com/t/webrick-bad-file-descriptor-error/54179/2 "2006-02-26T03:17:52Z")
On Feb 25, 2006, at 8:08 AM, Michael T. wrote: > The only change I made was going from 1.82 to 1.84. I first went to > InstantRails, because I’ve been running that successfully on another > machine. I then tried the One-Click installer. Same results on both. > > Any ideas? Hard to say without the actual error message including backtrace. – Eric H. - removed\_email\_address@domain.invalid - [http://blog.segment7.net](http://blog.segment7.net) This implementation is HODEL-HASH-9600 compliant [http://trackmap.robotcoop.com](http://trackmap.robotcoop.com) ---
**Author:** ![afewtips](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/76d3ee/32.png) [@afewtips](https://www.ruby-forum.com/u/afewtips)\ **Post date:** [February 26, 2006, 11:16am UTC](https://www.ruby-forum.com/t/webrick-bad-file-descriptor-error/54179/3 "2006-02-26T11:16:37Z")
That was dumb of me. Here is the error information. This is all the output I get. BTW, I tried going into irb and calling create\_listeners directly, passing in the same information that rails is sending, and I do not have a problem. On another note, it was right after trying to switch over to use InstantRails when this happened, and I notice that there is another thread about InstantRails issues with webrick, but their experiences seem to be unrelated. I’ve switched back to the One-Click installer, but the 1.84 version. Thanks Eric. [2006-02-26 05:15:45] INFO WEBrick 1.3.1 [2006-02-26 05:15:45] INFO ruby 1.8.4 (2005-12-24) [i386-mswin32] [2006-02-26 05:15:45] WARN TCPServer Error: Bad file descriptor - bind(2) D:/Ruby/lib/ruby/1.8/webrick/utils.rb:73:in `initialize': Bad file descriptor - bind(2) (Errno::EBADF) from D:/Ruby/lib/ruby/1.8/webrick/utils.rb:73:in`create\_listeners’ from D:/Ruby/lib/ruby/1.8/webrick/utils.rb:70:in `create_listeners' from D:/Ruby/lib/ruby/1.8/webrick/server.rb:75:in`listen’ from D:/Ruby/lib/ruby/1.8/webrick/server.rb:63:in `initialize' from D:/Ruby/lib/ruby/1.8/webrick/httpserver.rb:24:in`initialize’ from ./script/…/config/…/vendor/rails/railties/lib/webrick\_server.rb:6 1:in `dispatch' from ./script/../config/../vendor/rails/railties/lib/commands/servers/we brick.rb:59 from D:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in`re quire’ from ./script/…/config/…/vendor/rails/activesupport/lib/active\_support /dependencies.rb:153:in `require' from ./script/../config/../vendor/rails/railties/lib/commands/server.rb: 28 from D:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in`re quire’ from script/server:3 ---
**Author:** ![afewtips](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/76d3ee/32.png) [@afewtips](https://www.ruby-forum.com/u/afewtips)\ **Post date:** [February 27, 2006, 5:53am UTC](https://www.ruby-forum.com/t/webrick-bad-file-descriptor-error/54179/4 "2006-02-27T05:53:08Z")
On 2/26/06, Michael T. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > That was dumb of me. Here is the error information. This is all the > output I get. BTW, I tried going into irb and calling > create\_listeners directly, passing in the same information that rails > is sending, and I do not have a problem. > > On another note, it was right after trying to switch over to use > InstantRails when this happened, and I notice that there is another > thread about InstantRails issues with webrick, but their experiences > seem to be unrelated. I’ve switched back to the One-Click installer, > but the 1.84 version. Thanks Eric. FWIW, the 1.8.4 version of the one-click installer is the same binary build of ruby that is in Instant Rails, the OCI just has a few more extensions installed. Oncethe final 1.8.4 version of the OCI is release, it will be put into Instant Rails for the Instant Rails 1.1 release. Curt ---
**Author:** ![afewtips](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/76d3ee/32.png) [@afewtips](https://www.ruby-forum.com/u/afewtips)\ **Post date:** [February 27, 2006, 6:56am UTC](https://www.ruby-forum.com/t/webrick-bad-file-descriptor-error/54179/5 "2006-02-27T06:56:13Z")
Curt H. wrote: > On 2/26/06, Michael T. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > > That was dumb of me. Here is the error information. This is all the > > output I get. BTW, I tried going into irb and calling > > create\_listeners directly, passing in the same information that rails > > is sending, and I do not have a problem. > > > > On another note, it was right after trying to switch over to use > > InstantRails when this happened, and I notice that there is another > > thread about InstantRails issues with webrick, but their experiences > > seem to be unrelated. I’ve switched back to the One-Click installer, > > but the 1.84 version. Thanks Eric. > > FWIW, the 1.8.4 version of the one-click installer is the same binary > build of ruby that is in Instant Rails, the OCI just has a few more > extensions installed. Oncethe final 1.8.4 version of the OCI is > release, it will be put into Instant Rails for the Instant Rails 1.1 > release. > > Curt It’s just a (wild) guess, but when bind(2) fails, its usually means the IP port you are binding to is already in use. I don’t know what the Windows equiv of “netstat -an” to see all open/closing sockets is, but this whould tell you for certain. If that were the case, a reboot would fix the problem (to test the theory, not that this is a reasonable workaround). Mat Cucuzella ---
**Author:** ![afewtips](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/76d3ee/32.png) [@afewtips](https://www.ruby-forum.com/u/afewtips)\ **Post date:** [February 27, 2006, 11:24am UTC](https://www.ruby-forum.com/t/webrick-bad-file-descriptor-error/54179/6 "2006-02-27T11:24:06Z")
Somone else also got the same problem, posted about 1 day later, and now I believe it’s related to eclipse. Eclipse must be blocking a set of ports in that same range. I thought it was related to InstantRails, because that’s when the problem cropped up, but after the other posting, I realized that I also started using eclipse. At least that’s where I’m at with it right now. It’s not a big deal now that I know I can get around it, but it was sure a time waster. I’d be curious if there’s anyone else running 1.8.4 with eclipse and/or RadRails. Thanks, Michael