bug#25883: 25.2; Frequent, but not reproducible, crash on startup

[Eli Zaretskii]

> From: John Wiegley <jwiegley@gmail.com>
> Cc: bug-gnu-emacs@gnu.org
> Date: Sun, 26 Feb 2017 12:37:48 -0800
> 
> Once I'm in the debugger, how do I obtain the buffer text for you?

At the debugger prompt, type "source etc/emacs-buffer.gdb" and use the
commands defined there.  The commentary at the beginning of the file
is a good starting point.