bug#21542: 25.0.50; emacs_backtrace.txt

[Eli Zaretskii]

> Date: Thu, 24 Sep 2015 08:12:14 -0700 (PDT)
> From: Drew Adams <drew.adams@oracle.com>
> 
> > FWIW, here's the translation of the backtrace:
> > 
> > ?? ??:0
> > ?? ??:0
> > ?? ??:0
> > ?? ??:0
> > w32_backtrace at w32fns.c:9386
> > 
> > (Glenn seems to be right.  Nothing can be done with this)
> 
> FWIW, I keep getting this crash.  And similar crashes with a build
> from a month ago.  And they seem to be random in occurrence.

Any hope of a reproducible recipe?