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

[martin rudalics]

> I think `window--adjust-process-windows' finishes without error.  My
> impression is that it's something that it does that causes the hang
> later.  When I use debug-on-quit, window--adjust-process-windows is not
> in the Lisp backtrace.
>
> When I trace 'window--adjust-process-windows', I don't see unnaturally
> many calls of that function, so it also doesn't seem to be part of some
> kind of infloop.

All it does is call 'set-process-window-size' and I see no way either
how that could cause a hang.  BTW can you trigger the hang without
'w3m-message' involved?

martin