Bug #8348: ruby hangs randomly in daemonized processes on Debian GNU/kFreeBSD

• Status: Rejected
• Assignee: -
• 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

[JoeKun (Joel Lopes Da Silva)]

=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

[375gnu (Hleb Valoshka)]

Did you run this test on some kind of SMP box? Ruby on Debian GNU/kFreeBSD has problems with fork in SMP environment. It was discussed a bit in debian-bsd maillist but there is still no solution.

[375gnu (Hleb Valoshka)]

JoeKun, can you retest it with the latest Sid (eglibc >= 2.17-91)? It has new implementation of libpthreads, which has fixed bug with ruby's fork().

[375gnu (Hleb Valoshka)]

I've run test myself for 67 times and none of them finished unsuccessfully.

[JoeKun (Joel Lopes Da Silva)]

I can't reproduce this bug with ruby 2.1.3 anymore. Feel free to close it.

[hsbt (Hiroshi SHIBATA)]

• Status changed from Open to Rejected