GNU bug report logs - #75569
30.0.93; Large /proc/* file are read incompletely

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From: Daniel Mendler <mail <at> daniel-mendler.de>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: Paul Eggert <eggert <at> cs.ucla.edu>, 75569 <at> debbugs.gnu.org, juri <at> linkov.net
Subject: bug#75569: 30.0.93; Large /proc/* file are read incompletely
Date: Sun, 19 Jan 2025 11:58:26 +0100

Eli Zaretskii <eliz <at> gnu.org> writes:

>> Date: Sat, 18 Jan 2025 09:35:34 -0800
>> Cc: 75569 <at> debbugs.gnu.org
>> From: Paul Eggert <eggert <at> cs.ucla.edu>
>> 
>> On 2025-01-18 02:44, Eli Zaretskii wrote:
>> >> In other words, when reading a file Emacs should treat st_size as merely
>> >> a heuristic, not as authoritative.
>> > But does it do that now?  Regular files whose size changes as we read
>> > them are pretty rare, so maybe we almost never bump into them.
>> 
>> No, it doesn't do it now, and that's the main bug here. Fix that, and 
>> this other stuff isn't needed (and likely gets simplified away).
>
> Patches welcome, then.
>
> For now, I've installed a fix that Juri tested, to fix the regression.

Thank you! Are you going to install the fix on the emacs-30 branch if
this is a regression, or has it been broken in 29 too?

Daniel

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