Forum: Ruby Webrick, ldap segfault on Linux

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F3b7b8756d0c7f71cc7460cc33aefaee?d=identicon&s=25 Berger, Daniel (Guest)
on 2006-02-06 19:10
(Received via mailing list)
Hi all,

Although this is happening in a Rails app, this is mainly a Ruby issue.
I hit this issue on Solaris 10 with 1.8.2 but it went away with 1.8.4.
However, when I moved the app over to a Linux box (kernel 2.6.8), it
reared its ugly head again, even when using Ruby 1.8.4.  I tried using a
Ruby built with and without --enable-pthread.  Didn't make a difference
either way.

./app/models/user.rb:64: [BUG] Segmentation fault
ruby 1.8.4 (2005-12-24) [i686-linux]

Aborted

# user.rb (from /app/models)
require "ldap"
require "timeout"

class User < A
   ...
   def self.login(cuid, password)
      ldap_server = "ldapt.foo.com"
      bool = true

      if ENV["RAILS_ENV"].downcase == "production"
         ldap_server = "ldap.foo.com"
      end

      dn = "uid=#{cuid},ou=People,dc=foo,dc=bar,dc=com"

      begin
         Timeout.timeout(10){
            ldap = LDAP::Conn.new(ldap_server) # line 64
            ldap.simple_bind(dn, password)
            ldap.unbind
         }
      rescue Timeout::Error
         flash[:notice] = "Timed out"
         bool = false
      rescue LDAP::ResultError => err
         bool = false
      end

      return bool
   end
end

The development log shows nothing special for the last entry:

Processing LoginController#login (for 1.2.3.4 at 2006-02-06 11:39:23)
[POST]
  Parameters: {"commit"=>"Login", "action"=>"login",
"controller"=>"login", "login"=>{"cuid"=>"djber
ge", "password"=>"XXX"}}

Anyone else hit this?  I can't find the core file, otherwise I would
attach it.  I could probably generate one on my desktop Solaris box with
Ruby 1.8.2 and post it if that would help.  Let me know.

Regards,

Dan
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