GNU bug report logs -
#72641
31.0.50; "Unlocking file: Invalid argument" when deleting lock file on network file system
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Reported by: Michal Nazarewicz <mina86 <at> mina86.com>
Date: Thu, 15 Aug 2024 16:03:02 UTC
Severity: normal
Merged with 70973
Found in versions 29.1, 31.0.50
Done: Paul Eggert <eggert <at> cs.ucla.edu>
Bug is archived. No further changes may be made.
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Your bug report
#72641: 31.0.50; "Unlocking file: Invalid argument" when deleting lock file on network file system
which was filed against the emacs package, has been closed.
The explanation is attached below, along with your original report.
If you require more details, please reply to 72641 <at> debbugs.gnu.org.
--
72641: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=72641
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems
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On 2024-08-18 14:15, Michal Nazarewicz wrote:
> On Sat, Aug 17 2024, Paul Eggert wrote:
>> Yes, it's definitely a file system bug, and I don't see any good way
>> for Emacs to work around it.
>
> Yeah, I think this bug can be close. Though if you think the patch I’ve
> sent makes sense, I can push it to master as well.
>
OK, closing the bug report, as the patch you sent in
<https://bugs.gnu.org/72641#16> is problematic for the reasons discussed
in <https://bugs.gnu.org/72641#19>.
[Message part 3 (message/rfc822, inline)]
[Sending this again as a new bug report since #70973 is archived].
On Thu, May 16 2024, Eli Zaretskii wrote:
> I'm not sure we should silently sweep these rare and special cases
> under the carpet. The warning is just a warning, and manually
> deleting the lock file fixes even that.
>
> So I'm not sure we should do anything here, as long as the conclusion
> is that this happened due to a system crash in an opportune moment.
I’m getting the same warning on Linux with Emacs 31.0.50 and it’s not
caused by a crash.
emacs> M-x find-file RET /o/foo RET blah RET
cli> $ ls -l /o/.#foo
cli> -rw------- 1 mpn mpn 0 2024-08-15 16:30 /o/.#foo
emacs> M-x save-buffer RET
emacs> ⛔ Warning (unlock-file): Unlocking file: Invalid argument, /o/foo, ignored
cli> $ ls -l /o/.#foo /o/foo
cli> -rw------- 1 mpn mpn 5 2024-08-15 16:31 /o/foo
cli> -rw------- 1 mpn mpn 0 2024-08-15 16:30 /o/.#foo
The problem appears to be that /o is a network file-system which does
not support symbolic links:
$ mount |grep /o
//192.168.x.x/data on /o type cifs (rw,relatime,vers=3.0,cache=strict,username=mpn,uid=1000,forceuid,gid=1000,forcegid,addr=192.168.x.x,file_mode=0600,dir_mode=0700,soft,nounix,serverino,mapposix,reparse=nfs,rsize=4194304,wsize=4194304,bsize=1048576,retrans=1,echo_interval=60,actimeo=1,closetimeo=1,_netdev)
$ ln -s /o/foo /o/f
ln: failed to create symbolic link '/o/f': Input/output error
I guess Emacs notices that when it tries to create a lock file and falls
back to creating a file, but then it assumes it’s a symlink when trying
to remove it.
---------- >8 ------------------------------------------------------
In GNU Emacs 31.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
3.24.43, cairo version 1.18.0) of 2024-08-12 built on erwin
Repository revision: 5d69e2916458148159d7f21257f3c4863b868690
Repository branch: HEAD
Windowing system distributor 'The X.Org Foundation', version 11.0.12101011
System Description: Debian GNU/Linux trixie/sid
Configured using:
'configure --prefix=/usr/local --disable-acl
--enable-link-time-optimization --with-native-compilation=aot
--without-dbus --without-gconf --without-gpm --without-gsettings
--without-pop --without-selinux --without-systemd
--without-toolkit-scroll-bars --with-x --with-x-toolkit=gtk3
--with-xinput2 --with-xml2 'CFLAGS=-O2 -mtune=native -march=native
-fstack-protector' 'CPPFLAGS=-O2 -mtune=native -march=native
-fstack-protector' 'CXXFLAGS=-O2 -mtune=native -march=native
-fstack-protector''
Configured features:
CAIRO FREETYPE GIF GLIB GMP GNUTLS HARFBUZZ JPEG LIBXML2 MODULES
NATIVE_COMP NOTIFY INOTIFY PDUMPER PNG SECCOMP SOUND THREADS TIFF WEBP
X11 XDBE XIM XINPUT2 XPM GTK3 ZLIB
Important settings:
value of $LC_COLLATE: C
value of $LANG: en_GB.utf8
locale-coding-system: utf-8-unix
Major mode: Rust
Minor modes in effect:
server-mode: t
flyspell-mode: t
auto-dim-other-buffers-mode: t
global-auto-revert-mode: t
icomplete-mode: t
global-num3-mode: t
num3-mode: t
global-whitespace-mode: t
whitespace-mode: t
global-flyspell-mode: t
delete-selection-mode: t
windmove-mode: t
tooltip-mode: t
global-eldoc-mode: t
eldoc-mode: t
show-paren-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
tool-bar-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
minibuffer-regexp-mode: t
column-number-mode: t
line-number-mode: t
auto-fill-function: do-auto-fill
transient-mark-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
Load-path shadows:
/home/mpn/.config/emacs/elpa/transient-20210525.1141/transient hides /usr/local/share/emacs/31.0.50/lisp/transient
~/.config/emacs/custom hides /usr/local/share/emacs/31.0.50/lisp/custom
Features:
(shadow emacsbug mm-archive parse-time iso8601 mule-util image-mode exif
wdired dired-aux pp network-stream nsm mailalias smtpmail textsec
uni-scripts idna-mapping ucs-normalize uni-confusable textsec-check qp
sort mail-extr notmuch notmuch-tree notmuch-jump notmuch-hello wid-edit
notmuch-show notmuch-print notmuch-crypto notmuch-mua notmuch-message
notmuch-draft notmuch-maildir-fcc notmuch-address notmuch-company
notmuch-parser format-spec notmuch-wash diff-mode track-changes coolj
goto-addr icalendar notmuch-tag crm notmuch-lib notmuch-compat pcase
hl-line mm-view mml-smime smime gnutls dig gnus-alias rot13 message
sendmail yank-media puny dired dired-loaddefs rfc822 mml mml-sec epa
derived epg rfc6068 epg-config gnus-util mm-decode mm-bodies mm-encode
mail-parse rfc2231 rfc2047 rfc2045 mm-util ietf-drums mail-prsvr
mailabbrev mail-utils gmm-utils mailheader calc-alg calc-ext calc-menu
calc calc-loaddefs calc-macs project dabbrev auto-package-update
easy-mmode dash rust-utils rust-mode rust-rustfmt rust-playpen
rust-compile rust-cargo time-date mc-hide-unmatched-lines-mode
mc-mark-more mc-cycle-cursors multiple-cursors-core rect misearch
multi-isearch conf-mode pulse color descr-text server flyspell form-feed
init sgml-mode facemenu dom auto-dim-other-buffers face-remap autorevert
filenotify comp comp-cstr cl-extra help-mode warnings comp-run
comp-common rx icomplete num3-mode disp-table whitespace compile
text-property-search comint ansi-osc ansi-color ring ispell remember
advice browse-kill-ring delsel ffap thingatpt windmove diary-lib
diary-loaddefs cal-menu calendar cal-loaddefs
auto-dim-other-buffers-autoloads avy-autoloads
browse-kill-ring-autoloads csv-mode-autoloads evil-autoloads
gnu-elpa-keyring-update-autoloads gnus-alias-autoloads finder-inf
markdown-mode-autoloads notmuch-autoloads protobuf-mode-autoloads
sed-mode-autoloads info vterm-autoloads package browse-url url url-proxy
url-privacy url-expand url-methods url-history url-cookie
generate-lisp-file url-domsuf url-util mailcap url-handlers url-parse
auth-source cl-seq eieio eieio-core cl-macs icons password-cache json
subr-x map byte-opt gv bytecomp byte-compile url-vars cl-loaddefs cl-lib
early-init rmc iso-transl tooltip cconv eldoc paren electric uniquify
ediff-hook vc-hooks lisp-float-type elisp-mode mwheel term/x-win x-win
term/common-win x-dnd touch-screen tool-bar dnd fontset image regexp-opt
fringe tabulated-list replace newcomment text-mode lisp-mode prog-mode
register page tab-bar menu-bar rfn-eshadow isearch easymenu timer select
scroll-bar mouse jit-lock font-lock syntax font-core term/tty-colors
frame minibuffer nadvice seq simple cl-generic indonesian philippine
cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech
european ethiopic indian cyrillic chinese composite emoji-zwj charscript
charprop case-table epa-hook jka-cmpr-hook help abbrev obarray oclosure
cl-preloaded button loaddefs theme-loaddefs faces cus-face macroexp
files window text-properties overlay sha1 md5 base64 format env
code-pages mule custom widget keymap hashtable-print-readable backquote
threads inotify dynamic-setting font-render-setting cairo gtk x-toolkit
xinput2 x multi-tty move-toolbar make-network-process native-compile
emacs)
Memory information:
((conses 16 667368 1514832) (symbols 48 33066 15)
(strings 32 118043 64516) (string-bytes 1 3468194) (vectors 16 66157)
(vector-slots 8 1624733 757680) (floats 8 247 2757)
(intervals 56 57621 24687) (buffers 984 58))
---------- 8< ------------------------------------------------------
--
Best regards
ミハウ “𝓶𝓲𝓷𝓪86” ナザレヴイツ
«If at first you don’t succeed, give up skydiving»
This bug report was last modified 277 days ago.
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