From: Eli Zaretskii <eliz@gnu.org>
To: Robert Pluim <rpluim@gmail.com>
Cc: holger@pirk.name, 40023@debbugs.gnu.org
Subject: bug#40023: 26.3; Emacs crashes when creating process if many file handles are in use (e.g., when using ccls)
Date: Wed, 11 Mar 2020 18:17:02 +0200 [thread overview]
Message-ID: <83fteeamtd.fsf@gnu.org> (raw)
In-Reply-To: <m2v9navrep.fsf@gmail.com> (message from Robert Pluim on Wed, 11 Mar 2020 16:32:14 +0100)
> From: Robert Pluim <rpluim@gmail.com>
> Date: Wed, 11 Mar 2020 16:32:14 +0100
> Cc: 40023@debbugs.gnu.org
>
> >>>>> On Wed, 11 Mar 2020 13:50:22 +0000, Holger Pirk <holger@pirk.name> said:
>
> Holger> I have spent some time digging around the code and couldn't quite figure
> Holger> out the logic behind the `fd < FD_SETSIZE`-assert. I suspect the CCLS
> Holger> opens files without going through emacs' infrastructure which leads to
> Holger> high file descriptors which emacs cannot handle. I would say that CCLS
> Holger> is, in part, to blame but emacs shouldn't simply crash.
>
> Emacs is limited by the limits of select, which supports a maximum of
> FD_SETSIZE file descriptors, which on macOS is 1024
>
> At least on macOS, itʼs possible to increase that value to eg 8192 by
> setting FD_SETSIZE, which might alleviate this, but then you'd
> probably run into the 'ulimit -n' maximum, so you'd have to remember
> to increase that.
Wasn't this fixed lately by Yamamoto-san?
next prev parent reply other threads:[~2020-03-11 16:17 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-11 13:50 bug#40023: 26.3; Emacs crashes when creating process if many file handles are in use (e.g., when using ccls) Holger Pirk
2020-03-11 15:32 ` Robert Pluim
2020-03-11 16:17 ` Eli Zaretskii [this message]
2020-03-11 16:45 ` Holger Pirk
2020-03-12 7:27 ` Robert Pluim
2020-03-12 7:26 ` Robert Pluim
2020-03-12 15:11 ` Eli Zaretskii
2020-03-12 15:24 ` Robert Pluim
2020-03-12 15:50 ` Eli Zaretskii
2020-03-12 16:46 ` Robert Pluim
2020-03-19 10:41 ` Robert Pluim
2020-03-19 14:36 ` Eli Zaretskii
2020-04-11 18:15 ` bug#40023: 26.3 " Mattias Engdegård
2020-04-11 19:02 ` Eli Zaretskii
2020-04-12 10:19 ` Michael Albinus
2020-04-14 13:58 ` Robert Pluim
2020-04-14 16:02 ` Mattias Engdegård
2020-04-14 16:14 ` Robert Pluim
2020-04-14 16:23 ` Eli Zaretskii
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