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bug#23002: 25.0.92; sluggish M-x
From: |
Leo Liu |
Subject: |
bug#23002: 25.0.92; sluggish M-x |
Date: |
Sun, 13 Mar 2016 12:01:56 +0800 |
1. start a NEW GUI Emacs with `emacs -q' and go to the *Scratch* buffer
2. M-x emacs-lisp-mode RET
The cursor stays in the minibuffer (see the screenshot; long enough for
me to take a screenshot) for a few seconds before the message "You can
run the command ‘emacs-lisp-mode’ with M-x e-li-mo RET".
If you repeat `M-x emacs-lisp-mode RET' the delay is gone but it will
come back at some point.
This bug makes M-x very sluggish and annoying to use. I have experienced
it since switching to 25.0.x but didn't find a simple way to reproduce
it until just now.
It surfaced because of this commit:
d94bc77ec77dea298063f182cc8a6548b6ccce81 is the first bad commit
commit d94bc77ec77dea298063f182cc8a6548b6ccce81
Author: Stefan Monnier
Date: Mon Nov 3 17:27:26 2014 -0500
* lisp/simple.el (execute-extended-command--last-typed): New var.
(read-extended-command): Set it.
Don't complete obsolete commands.
(execute-extended-command--shorter-1)
(execute-extended-command--shorter): New functions.
(execute-extended-command): Use them to suggest shorter names.
(indicate-copied-region, deactivate-mark): Use region-active-p.
:040000 040000 de3e26b5d09fab83741601a4e7207ff0d12aea00
a1a28e7b2b13fe63d4f9442dd54a321f287548fc M etc
:040000 040000 6db42693d65c3b986164cab0545862e24303d346
00945565cec8df9a4cf92806e3485b67c1143f8e M lisp
m-x bug.png
Description: PNG image
- bug#23002: 25.0.92; sluggish M-x,
Leo Liu <=
- bug#23002: 25.0.92; sluggish M-x, Drew Adams, 2016/03/13
- bug#23002: 25.0.92; sluggish M-x, Eli Zaretskii, 2016/03/13
- bug#23002: 25.0.92; sluggish M-x, Leo Liu, 2016/03/14
- bug#23002: 25.0.92; sluggish M-x, YAMAMOTO Mitsuharu, 2016/03/15
- bug#23002: 25.0.92; sluggish M-x, Leo Liu, 2016/03/15
- bug#23002: 25.0.92; sluggish M-x, Stefan Monnier, 2016/03/15
- bug#23002: 25.0.92; sluggish M-x, YAMAMOTO Mitsuharu, 2016/03/15
- bug#23002: 25.0.92; sluggish M-x, Stefan Monnier, 2016/03/15
- bug#23002: 25.0.92; sluggish M-x, Leo Liu, 2016/03/20