On Tue, Nov 15, 2022 at 2:49 PM Eli Zaretskii <firstname.lastname@example.org
> That's because 4 programs are writing at the same time to the same
> device. The OS in most cases succeeds in separating the outputs, but
> that is not guaranteed.
Ok, though I had never seen such a thing before in many, many emacs compilations and bootstrappings.