unofficial mirror of bug-gnu-emacs@gnu.org 
 help / color / mirror / code / Atom feed
From: Eli Zaretskii <eliz@gnu.org>
To: Mark H Weaver <mhw@netris.org>
Cc: 46978@debbugs.gnu.org
Subject: bug#46978: 27.1; Shell mode performs extremely poorly in Linux-libre 5.10.20
Date: Sun, 07 Mar 2021 08:39:21 +0200	[thread overview]
Message-ID: <83o8fvtqli.fsf@gnu.org> (raw)
In-Reply-To: <87ft17it4a.fsf@netris.org> (message from Mark H Weaver on Sat, 06 Mar 2021 21:39:54 -0500)

> From: Mark H Weaver <mhw@netris.org>
> Date: Sat, 06 Mar 2021 21:39:54 -0500
> 
> Mark H Weaver <mhw@netris.org> writes:
> 
> > I've skimmed the list of changes between Linux 5.10.19 and 5.10.20, and
> > found these two commits that might be relevant:
> >
> > tty: implement read_iter
> > <https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.20&id=41c6f6b926d0e712d0321f8a8f6511fea748e814>
> >
> > tty: convert tty_ldisc_ops 'read()' function to take a kernel pointer
> > <https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.20&id=279e54536ddbb4dbd337fca74926b68651160043>
> >
> > These changes are also included in Linux-libre 5.11.3 (the newest
> > release), but I haven't yet tried that version.
> >
> > I'm currently building a variant of Linux-libre 5.10.20 with these two
> > commits reverted, to see if that makes the problem go away, and I will
> > report back when I have those results.
> 
> Reverting the two commits cited above fixes the problem.

So does this mean this isn't an Emacs issue, but the issue with that
kernel?  Or is there still something you'd like us to look into on the
Emacs side?

Thanks.






  reply	other threads:[~2021-03-07  6:39 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-06 23:54 bug#46978: 27.1; Shell mode performs extremely poorly in Linux-libre 5.10.20 Mark H Weaver
2021-03-07  2:39 ` Mark H Weaver
2021-03-07  6:39   ` Eli Zaretskii [this message]
2021-03-07  8:50     ` Mark H Weaver
2021-03-07 11:30       ` Eli Zaretskii
2021-03-08  4:58         ` Mark H Weaver
2021-03-08 13:37           ` Eli Zaretskii

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.gnu.org/software/emacs/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=83o8fvtqli.fsf@gnu.org \
    --to=eliz@gnu.org \
    --cc=46978@debbugs.gnu.org \
    --cc=mhw@netris.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).