bug#38748: 28.0.50; crash on MacOS 10.15.2

[Pieter van Oostrum]

Robert Pluim <rpluim@gmail.com> writes:

>>>>>> On Thu, 9 Jan 2020 14:16:54 +0000, Pip Cet <pipcet@gmail.com> said:
>
>     Pip> On Thu, Jan 9, 2020 at 1:51 PM Andrii Kolomoiets 
> <andreyk.mad@gmail.com> wrote:
>     >> Here is the '~/emacs-crash.el' content:
>     >> (make-frame `((parent-frame . ,(window-frame))))
>     >> (make-frame `((parent-frame . ,(window-frame))))
>     >> (make-frame `((parent-frame . ,(window-frame))))
>     >> (make-frame `((parent-frame . ,(window-frame))))
>     >> (delete-frame)
>     >> (delete-frame)
>     >> (delete-frame)
>     >> (delete-frame)
>     >> (garbage-collect)
>
>     Pip> That sounds like Robert's bug, but not like the one that's related to
>     Pip> the "x = false" thing.
>
>     Pip> Can you try the attached patch?
>
>     Pip> diff --git a/src/nsterm.m b/src/nsterm.m
>     Pip> index 03754e5ae5..c1d1d41117 100644
>     Pip> --- a/src/nsterm.m
>     Pip> +++ b/src/nsterm.m
>     Pip> @@ -1644,6 +1644,7 @@ Hide the window (X11 semantics)
>     Pip>    [view release];
>  
>     Pip>    xfree (f->output_data.ns);
>     Pip> +  f->output_data.ns = NULL;
>  
>     Pip>    unblock_input ();
>     Pip>  }
>
> That has fixed things for me, not been able to crash it with Andrii's
> recipe (I had to increase the number of frames to get it to crash).
>
> Robert

I compiled HEAD with this patch applied, and it still crashed but with the 
other crash cause (in Fmouse_pixel_position).
-- 
Pieter van Oostrum
www: http://pieter.vanoostrum.org/
PGP key: [8DAE142BE17999C4]