bug#16051: 24.3.50; Emacs hang - resize frame manually

[martin rudalics]

> FWIW, it aborts because 'row' is 7, whereas matrix->nrows is 5.  From
> these numbers, I'm guessing that the problem happens when Emacs tries
> to redisplay the tool-bar window (which gets taller when you shrink
> the frame width like this).
>
> Some missing block_input somewhere, perhaps?

Maybe I don't get it then because I build without image support.  But I
can't reproduce it on Debian where I have image support.  What is your
oldest build where this abort occurs?

martin