[ESS] Anyone tried Emacs 27.1 pretest with Windows 10 ?

[Martin Maechler]

>>>>> Stephen Eglen via ESS-help 
>>>>>     on Wed, 06 May 2020 12:23:23 +0100 writes:

    > Good idea Phil.  Also, Kevin -- does it crash with earlier
    > versions of R?  R 4.0.0 just came out so wondering if that
    > is an additional degree of freedom for bugs to creep in.

    > Stephen

indeed, changing more than one thing at a time..

OTOH, as a co-author of R 4.0.0 which I have been using in
its prereleases for many months with ESS,
I have never noticed different buggy behavior of ESS between it
and R 3.6.x

But I do observe bad ESS behavior, something bringing emacs to a
crawl or having to kill it... I think it is related to running
several R sessions (in several ESS buffers) and several [M-x
shell] generated shells inside the same ESS and partly having
many lines (100'000s) in such buffers.

I strongly suspect it is related to the (mis)feature that ESS is
monitoring things not only *R* buffers but also in *shell* buffers.
.. I think part of current modern ESS work under the assumption
the ESS user is working on *one* R project / package at a time,
rather than as me, compiling R, hacking R, hacking 3 different R
packages all in the same emacs instance.

Martin




    > On Wed, May 06 2020, Phillip Lord via ESS-help wrote:

    >> If you having problems please do send a bug report in. It
    >> would be unfortunate if 27.1 came out buggy.
    >> 
    >> Phil
    >> 
    >> Kevin Wright via ESS-help <ess-help using r-project.org>
    >> writes:
    >> 
    >>> I've tried the latest Emacs 27.1 pre-test on Windows 10
    >>> with ESS.  I've been getting freezes of Emacs when I'm
    >>> working with R code buffers.  Happens sporadically, but
    >>> locks up Emacs so that I have to kill the process.
    >>> 
    >>> Anybody else tried Emacs 27.1 ?
    >>> 
    >>> --
    >>> Kevin Wright
    >>> 
    >>> [[alternative HTML version deleted]]
    >>> 
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    >> 
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