From: Eric Wong <normalperson@...>
Date: 2012-02-03T08:39:09+09:00
Subject: [ruby-core:42334] Re: [RFC/PATCH] reinit signal_thread_list_lock atfork

KOSAKI Motohiro <kosaki.motohiro@gmail.com> wrote:
> 2012/2/2 Eric Wong <normalperson@yhbt.net>:
> > OK, then is there any chance this could be th->interrupt_lock can be
> > held by the main thread?
> 
> It's possible. OK, we might need to reinitialize it.

I pushed this out just in case:
  http://bogomips.org/ruby.git/patch/?id=418827f4e41a618d91