To pinpoint what goes wrong in an NS Emacs, you can edit "nsterm.h" and
uncomment the line defining the NSTRACE_ENABLED macro. If you run Emacs
from a terminal window, you will get debug output of all relevant functions
called, hopefully this will tell you what went wrong.

    -- Anders

On Sat, Feb 4, 2017 at 7:54 PM, Artemio González López <artemiog@mac.com>
wrote:

> Emacs 25.1 (as well as 25.1.1rc) crashes at start under the latest
> developer beta of macOS (10.12.4 beta 1), producing the error message
>
> 2017-01-25 23:50:19.458 Emacs-x86_64-10_9[864:21038] Error -
> planarGetBytes count (65536) is not a multiple of
> bytesPerRow (96).
>
> I've already reported this as a possible bug, but would like to check if
> anybody has a pointer as to what maybe the problem and how to fix it.  Any
> help would be appreciated.
>
> Artemio
>
> artemiog@mac.com
>