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bug#14473: 24.3; emacs locks up when eshell attempts to display a dialog
From: |
Joseph Mingrone |
Subject: |
bug#14473: 24.3; emacs locks up when eshell attempts to display a dialog |
Date: |
Thu, 03 Oct 2019 12:48:57 -0300 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (berkeley-unix) |
Eli Zaretskii <eliz@gnu.org> writes:
>> From: Stefan Kangas <stefan@marxist.se>
>> Date: Mon, 30 Sep 2019 17:47:48 +0200
>> Cc: 14473@debbugs.gnu.org
>> Joseph Mingrone <jrm@ftfl.ca> writes:
>> > When working in Eshell, if a dialog such as
>> > http://www.freebsd.org/doc/en/books/handbook/install/dist-set2.png is to
>> > be displayed, Emacs will lock up and the processor will stay at 100%
>> > until Emacs is killed. This also happens when starting with Emacs -Q.
>> Are you still seeing this on a modern version of Emacs? If yes, could
>> you please provide a recipe for how to reproduce it, starting from
>> "emacs -Q"?
>> (BTW, the link above is dead.)
> You can still find it in the Internet Archive:
>
> https://web.archive.org/web/20130801011654/http://www.freebsd.org/doc/en/books/handbook/install/dist-set2.png
It's still a problem (26.3 and 2019-09-15 master-branch build) in that the
dialog is not displayed, but the Emacs process no longer consumes 100% CPU.
Here is a simple recipe to reproduce the problem. It assumes the FreeBSD ports
tree is installed in the default location, which is /usr/ports.
1. emacs -Q
2. M-x eshell
3. cd /usr/ports/editors/emacs
4. sudo make config
Instead of the dialog displaying, eshell becomes unusable (blank screen and no
keys will return the prompt). Trying to exit by hitting TAB/Enter reports
Completion function pcomplete-completions-at-point uses a deprecated calling
convention
Warning: pcomplete-completions-at-point failed to return valid completion data!
You can switch buffers and kill the eshell process now though.
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- bug#14473: 24.3; emacs locks up when eshell attempts to display a dialog,
Joseph Mingrone <=