bug#26241: 25.1; Re: emacsclient in 25 branch: error opening any file

[frederik]

On Fri, Mar 24, 2017 at 08:04:33PM -0400, npostavs@users.sourceforge.net wrote:
> frederik@ofb.net writes:
> 
> > You could instrument 'emacsclient' to produce a stack trace, with an
> > option analogous to --debug-init. It would be useful for future bugs
> > as well. "Wrong type argument" is better than nothing, but we agree
> > that it's not very useful.
> 
> Could you try setting debug-on-signal to t after you get Emacs into this
> state?  You should then get a backtrace in the running Emacs.

I'm not familiar with that variable. Could I also set it in ~/.emacs?