bug#18851: 24.4; emacs cannot be started if the current directory has been removed

[Eli Zaretskii]

> From: Glenn Morris <rgm@gnu.org>
> Cc: Vincent Lefevre <vincent@vinc17.net>,  18851@debbugs.gnu.org,  Eli 
> Zaretskii <eliz@gnu.org>
> Date: Thu, 11 Jun 2015 20:39:04 -0400
> 
> Stefan Monnier wrote:
> 
> >> IMHO, if the current directory no longer exists, the default-directory
> >> of *scratch* can be nil.
> >
> > Yes, that seems to be the right fix for this problem.
> > Of course a default-directory set to nil can cause problems down the
> > road, but these are either unavoidable or should likely be fixable.
> 
> I installed something along these lines. Now:
>     
>     mkdir /tmp/foo
>     cd /tmp/foo
>     rmdir /tmp/foo
>     emacs -Q
> 
> works for me ~ 10% of the time. The rest of the time it segfaults.

It doesn't segfault for me.  Can you show a backtrace?