Re: say where attempt to write backup file was

[Richard Stallman]

    >     So should the call to message in backup-buffer be wrapped in
    >     (let ((resize-mini-windows 'grow-only)
    >      (max-mini-window-height 1.0))
    >   ...)

    > Would you please verify that this succeeds in avoiding
    > problems in the cases of concern, and then send a patch?

    It doesn't solve it in my case (a minibuffer-only frame).

I think there is no easy way to cope with that case; the only thing
that could do it is a feature to automatically grow a frame.

The question is whether that change does handle the cases we could
reasonably hope to handle without far-reaching changes (which we
couldn't make now).