bug#34179: 27.0.50; message hangs when buffer with process visible

[Michael Heerdegen]

martin rudalics <rudalics@gmx.at> writes:

> Probably good to know.  Meanwhile, please try the attached patch which
> should "cure" the underlying problem (it's the same as for Bug#34138).

So far, that seems to be good, but this:

> It does not cure another problem I found this way based on your
> scenario:
>
>   With emacs -Q do M-x shell, C-x 5 2, and M-: (message "A\nB").
>
> Here with emacs 25 this grows the minibuffer window and displays the
> two lines
>
> A
> B
>
> in it.  With emacs 26 it shortly resizes the minibuffer window and
> then displays "A\nB" in it.  With patched master it displays
>
> Eval: (message "A\nB")
>
> with the cursor at the beginning of the minibuffer.

I'm seeing too.


Thanks,

Michael.