GNU bug report logs - #66381
29.1; Auto-revert not polling files when notifications are enabled

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Message #29 received at 66381 <at> debbugs.gnu.org (full text, mbox):

From: Daniel Jacobowitz <daniel.jacobowitz <at> gmail.com>
To: Michael Albinus <michael.albinus <at> gmx.de>
Cc: 66381 <at> debbugs.gnu.org, Eli Zaretskii <eliz <at> gnu.org>
Subject: Re: bug#66381: 29.1; Auto-revert not polling files when notifications
 are enabled
Date: Sat, 7 Oct 2023 14:14:45 -0400

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Coming back to my original suggestion: the documentation says that polling
is used even if notifications are enabled. The implementation does not poll
if there's a notification registered. Which behavior is intended?

On Sat, Oct 7, 2023 at 1:59 PM Michael Albinus <michael.albinus <at> gmx.de>
wrote:

> Daniel Jacobowitz <daniel.jacobowitz <at> gmail.com> writes:
>
> Hi Daniel,
>
> > It's /google/src/<censored>/file.txt, with the mount
> > point on /google/src. Mount details:
> >
> > srcfsd /google/src fuse.srcfsd
> >
> rw,nosuid,nodev,relatime,user_id=125,group_id=0,default_permissions,allow_other
> > 0 0
> >
> > There's no stop notification generated, whether I restart or kill the
> > daemon or just umount -l. inotifywait(1) agrees. I've got no idea what
> > parts of this may be local kernel behavior versus FUSE in general, but
> > I would guess that FUSE in general is more likely.
>
> Yes, likely this is due to the srcfsd FUSE type. I don't use it, so I
> cannot test.
>
> Since inotify doesn't deliver IN_IGNORED (and the file-notify `stopped'
> event doesn't appear therefore) we cannot do too much. We have no API
> which sends heartbeat checks on watched file systems; such a check could
> solve the problem. But there are no plans. Your workaround by restarting
> global-auto-revert-mode every night might be the best you could use.
>
> Best regards, Michael.
>


-- 
Thanks,
Daniel

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