From: Eric Wong <normalperson@...>
Date: 2012-04-25T03:25:54+09:00
Subject: [ruby-core:44600] Re: [ruby-trunk - Bug #6341] SIGSEGV: Thread.new { fork { GC.start } }.join

KOSAKI Motohiro <kosaki.motohiro@gmail.com> wrote:
> (4/24/12 6:55 AM), Yusuke Endoh wrote:
> >2012/4/24, KOSAKI Motohiro<kosaki.motohiro@gmail.com>:
> >>Do you want raise NotImplementError on _all_ platform?
> >
> >My answer is yes, if the problem occurs actually.
> >
> >>So, one option is, fork after thread.new raise
> >>an exception on all platform.
> >
> >Looks good.
> 
> okey. at first, I'd like to add a warnings and observe how much apps
> makes whiny.

Shouldn't the presence of the GVL allow Thread.new + fork to be safe in
pure Ruby code?  Also, the async-signal-safe requirement for fork() may
be dropped in future versions of POSIX:
http://austingroupbugs.net/view.php?id=62