On Wed 30 Jan 2019 at 10:15, Alan Mackenzie <acm@muc.de> wrote:

> It seems to be a Linux problem, at least at my end.
>
> I see the bug with kernel versions 4.19.17 and 4.19.13.
> I don't see the bug with versions 4.18.19 and 4.19.10.
>
> It seems some incompatibility between Emacs and Linux was introduced in
> one of the kernels 4.19.1[123].

I'm on kernel 4.14.95, so if it is a Linux issue, it's been backported.