Subject: bug#7044: 24.0.50; Emacs crashes after calling ediff-regions-linewise

From: Chong Yidong <[email-masked]>
Date: Sat, 02 Oct 2010 21:00:06 -0400

Juanma Barranquero <[email-masked]> writes:

>   Fmarker_position (current_buffer->mark)
>
> returns nil, and so beg is assigned XINT (nil), which is a bug.
>
> Now, shouldn't current_buffer->mark_active be nil if the mark points
> nowhere?

No; it's possible that the buffer-local variable mark-active has been
set but the actual marker hasn't been assigned yet.  This was an
oversight on my part, and I've now checked in a fix.

Thanks.