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bug#22814: 25.0.91; Emacs runs out of file descriptors on OS X
From: |
Michael Albinus |
Subject: |
bug#22814: 25.0.91; Emacs runs out of file descriptors on OS X |
Date: |
Sat, 27 Feb 2016 13:17:50 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) |
Anders Lindgren <andlind@gmail.com> writes:
> Can you debug this?
>
> Not within a reasonable time frame, unfortunately.
I've debugged this on FreeBSD 10. It has larger limits:
--8<---------------cut here---------------start------------->8---
albinus@freebsd10:~/src/emacs-25 % ulimit -u
5749
albinus@freebsd10:~/src/emacs-25 % ulimit -n
28791
--8<---------------cut here---------------end--------------->8---
1. Run unlimited number of file-notify-add-watch:
--8<---------------cut here---------------start------------->8---
(let ((temporary-file-directory file-notify--test-tmpfile))
(while t
(setq file-notify--test-tmpfile1 (file-notify--test-make-temp-name))
(write-region
"any text" nil file-notify--test-tmpfile1 nil 'no-message)
(should (file-notify-add-watch
file-notify--test-tmpfile1 '(change) #'ignore))))
--8<---------------cut here---------------end--------------->8---
--8<---------------cut here---------------start------------->8---
albinus@freebsd10:~/src/emacs-25 % gmake -C test/automated file-notify-tests
SELECTOR='\"09\"'
Test file-notify-test09-sufficient-ressources condition:
(file-error "Opening output file" "Too many open files in system"
"/tmp/file-notify-test-parent11031I_Y/file-notify-test11031BbD")
FAILED 1/2 file-notify-test09-sufficient-ressources
albinus@freebsd10:~/src/emacs-25 % ls /tmp/file-notify-test-parent11031I_Y | wc
-l
20291
--8<---------------cut here---------------end--------------->8---
2. Run limited number of file-notify-add-watch:
--8<---------------cut here---------------start------------->8---
(let ((temporary-file-directory file-notify--test-tmpfile))
(dotimes (_i 10000)
(setq file-notify--test-tmpfile1 (file-notify--test-make-temp-name))
(write-region
"any text" nil file-notify--test-tmpfile1 nil 'no-message)
(should (file-notify-add-watch
file-notify--test-tmpfile1 '(change) #'ignore)))
(read))
--8<---------------cut here---------------end--------------->8---
--8<---------------cut here---------------start------------->8---
albinus@freebsd10:~/src/emacs-25 % gmake -C test/automated file-notify-tests
SELECTOR='\"09\"'
[...]
root@freebsd10:~ # lsof -p 11075 | grep file-notify-test | wc -l
10000
--8<---------------cut here---------------end--------------->8---
Obviously, Emacs keeps an open file descriptor per watched file, as expected.
> -- Anders
Best regards, Michael.
- bug#22814: 25.0.91; Emacs runs out of file descriptors on OS X, (continued)
- bug#22814: 25.0.91; Emacs runs out of file descriptors on OS X, Michael Albinus, 2016/02/27
- bug#22814: 25.0.91; Emacs runs out of file descriptors on OS X, Eli Zaretskii, 2016/02/27
- bug#22814: 25.0.91; Emacs runs out of file descriptors on OS X, Michael Albinus, 2016/02/27
- bug#22814: 25.0.91; Emacs runs out of file descriptors on OS X, Michael Albinus, 2016/02/27
- bug#22814: 25.0.91; Emacs runs out of file descriptors on OS X, Eli Zaretskii, 2016/02/27
- bug#22814: 25.0.91; Emacs runs out of file descriptors on OS X, Michael Albinus, 2016/02/29
- bug#22814: 25.0.91; Emacs runs out of file descriptors on OS X, Eli Zaretskii, 2016/02/29
- bug#22814: 25.0.91; Emacs runs out of file descriptors on OS X, Anders Lindgren, 2016/02/27
- bug#22814: 25.0.91; Emacs runs out of file descriptors on OS X, Eli Zaretskii, 2016/02/27
- bug#22814: 25.0.91; Emacs runs out of file descriptors on OS X, Anders Lindgren, 2016/02/27
- bug#22814: 25.0.91; Emacs runs out of file descriptors on OS X,
Michael Albinus <=
- bug#22814: 25.0.91; Emacs runs out of file descriptors on OS X, Eli Zaretskii, 2016/02/27
- bug#22814: 25.0.91; Emacs runs out of file descriptors on OS X, Michael Albinus, 2016/02/27
- bug#22814: 25.0.91; Emacs runs out of file descriptors on OS X, Eli Zaretskii, 2016/02/27
- bug#22814: 25.0.91; Emacs runs out of file descriptors on OS X, Michael Albinus, 2016/02/27