Webrick, ldap segfault on Linux

[Berger, Daniel]

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 =3D "ldapt.foo.com"
bool =3D true

if ENV["RAILS_ENV"].downcase =3D=3D "production"
ldap_server =3D "ldap.foo.com"
end

dn =3D "uid=3D#{cuid},ou=3DPeople,dc=3Dfoo,dc=3Dbar,dc=3Dcom"

begin
Timeout.timeout(10){
ldap =3D LDAP::Conn.new(ldap_server) # line 64
ldap.simple_bind(dn, password)
ldap.unbind
}
rescue Timeout::Error
flash[:notice] =3D "Timed out"
bool =3D false
rescue LDAP::ResultError =3D> err
bool =3D 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"=3D>"Login", "action"=3D>"login",
"controller"=3D>"login", "login"=3D>{"cuid"=3D>"djber
ge", "password"=3D>"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