[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Emacs opens only first 16384 bytes of file?!
From: |
Ruijie Yu |
Subject: |
Re: Emacs opens only first 16384 bytes of file?! |
Date: |
Sun, 12 Feb 2023 11:55:30 +0800 |
User-agent: |
mu4e 1.8.13; emacs 29.0.60 |
Christoph Groth <christoph@grothesque.org> writes:
> Hello,
>
> I just noticed something that made me doubt my own sanity: With Emacs
> 27.1 (from Debian stable running Debian’s Linux kernel
> 6.0.0-0.deb11.6-amd64) the command
>
> emacs -q -nw /proc/cpuinfo
>
> reproducibly opens cpuinfo only up to a portion of line 272, while the
> entire file is 560 lines long on that machine. I checked on a different
> machine (with same Emacs), and I see the same behavior.
>
> C-u C-x = tells that the file is read up to position 16384 (= 2^14).
Can't reproduce on 28.1 nor 29 (8a18369afdc3). Can you compile 28.1 and
see if the problem goes away?
Since my /proc/cpuinfo is smaller than 16384 bytes, I used the following
steps to try to reproduce the issue:
$ zcat /proc/config.gz > ~/c
$ /path/to/emacs-28.1/src/emacs -Q -nw ~/c
`C-u C-x =' says: "position: 1 of 252720 (0%), column: 0"
> Running M-x revert-buffer loads the whole file...
>
> Is/was this a known issue? I could not find anything on the web.
In the future you might get more responses if you mail to
bug-gnu-emacs@gnu.org.
> ----------------------------------------------------------------
>
> I’m willing to investigate this further, but it would seem very strange
> if Emacs indeed had a bug that prevented it from loading some files
> entirely. Perhaps someone here knows the answer.
>
> Thanks
> Christoph
--
Best,
RY