Subject: bug#75569: 30.0.93; Large /proc/* file are read incompletely

From: Daniel Mendler <[email-masked]>
Date: Sun, 19 Jan 2025 11:58:26 +0100

Eli Zaretskii <[email-masked]> writes:

>> Date: Sat, 18 Jan 2025 09:35:34 -0800
>> Cc: [email-masked]
>> From: Paul Eggert <[email-masked]>
>> 
>> 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