Issue #8348 has been reported by JoeKun (Joel Lopes Da Silva).

----------------------------------------
Bug #8348: ruby hangs randomly in daemonized processes on Debian GNU/kFreeBSD
https://bugs.ruby-lang.org/issues/8348

Author: JoeKun (Joel Lopes Da Silva)
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 
ruby -v: ruby 2.0.0p0 (2013-02-24 revision 39474) [x86_64-kfreebsd9.0-gnu]
Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN


=begin
Ruby scripts that use Process.daemon seem to hang randomly on Debian GNU/kFreeBSD.

Steps to reproduce:

(1) Install Debian GNU/kFreeBSD Wheezy
(2) Install rvm: (({curl -L https://get.rvm.io | bash -s stable}))
(3) Install any dependencies recommended by rvm
(4) Install ruby 2.0: (({rvm install 2.0.0 --patch /path/to/ruby-2.0.0-p0_missing_declarations_GNU_kFreeBSD.diff}))
(5) Run: (({ruby test_ruby_daemonized_process_hang_kfreebsd.rb}))

The script never actually finishes, and hangs soon after using Process.daemon.
=end


-- 
http://bugs.ruby-lang.org/