GNU bug report logs - #39164
27.0.60; Intermittent crash on MacOS 10.14 in setup_process_coding_systems

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Package: emacs;

Reported by: Justin Guenther <jguenther <at> gmail.com>

Date: Fri, 17 Jan 2020 19:02:01 UTC

Severity: normal

Merged with 40023, 40555

Found in versions 27.0.60, 26.3, 27.0.90

Fixed in version 27.1

Done: Robert Pluim <rpluim <at> gmail.com>

Bug is archived. No further changes may be made.

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Message #29 received at 39164 <at> debbugs.gnu.org (full text, mbox):

From: Robert Pluim <rpluim <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: tomekowal <at> gmail.com, jguenther <at> gmail.com, 39164 <at> debbugs.gnu.org,
 mituharu <at> math.s.chiba-u.ac.jp
Subject: Re: bug#39164: 27.0.60; Intermittent crash on MacOS 10.14 in
 setup_process_coding_systems
Date: Tue, 28 Jan 2020 08:59:35 +0100

>>>>> On Mon, 27 Jan 2020 20:19:07 +0200, Eli Zaretskii <eliz <at> gnu.org> said:

    >> Date: Mon, 27 Jan 2020 22:26:10 +0900
    >> From: mituharu <at> math.s.chiba-u.ac.jp
    >> Cc: "Eli Zaretskii" <eliz <at> gnu.org>,
    >> jguenther <at> gmail.com,
    >> "Tomasz Kowal" <tomekowal <at> gmail.com>,
    >> 39164 <at> debbugs.gnu.org
    >> 
    >> This is a variant of Bug#24325: Crash - fd larger than FD_SETSIZE.
    >> Some functions in the Core Foundation framework on macOS
    >> call setrlimit for RLIMIT_NOFILE in order to increase the limit of
    >> the maximum number of open files for the process:
    >> 
    >> https://opensource.apple.com/source/CF/CF-1153.18/CFSocket.c.auto.html
    >> 
    >> So the fix for Bug#24325 doesn't work in this case.

    Eli> Thanks.

    Eli> So I guess one possible solution would be to see that fd is beyond
    Eli> FD_SETSIZE, and if so, call getrlimit to see if the limit was bumped
    Eli> up, and if so, reallocate the arrays used by process.c?  Would that
    Eli> make sense?

This will break {p}select, no? Thatʼs defined to only work up to
FD_SETSIZE.

Robert
This bug report was last modified 5 years and 35 days ago.

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