GNU bug report logs - #54126
29.0.50; C-x x g doesn't always correctly revert SSHFS files

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Message #22 received at 54126 <at> debbugs.gnu.org (full text, mbox):

From: Michael Albinus <michael.albinus <at> gmx.de>
To: Philipp Stephani <p.stephani2 <at> gmail.com>
Cc: 54126 <at> debbugs.gnu.org
Subject: Re: bug#54126: 29.0.50; C-x x g doesn't always correctly revert
 SSHFS files
Date: Fri, 18 Mar 2022 18:53:11 +0100

Philipp Stephani <p.stephani2 <at> gmail.com> writes:

Hi Philipp,

>> Another cache might come from sshfs itself. Tramp calls sshfs like
>> "sshfs localhost:/ /tmp/tramp.sshfs.localhost -C -o idmap=user,reconnect".
>> See tramp-mount-args settings in tramp-sshfs.el, line 33-34. You might
>> try to add other options, like "-o no_readahead" or "-o sync_readdir",
>> see sshfs(1). Don't forget to unmount the sshfs mount point, before you
>> start a new Emacs session with changed options.
>
> I'll play around with that, thanks for the hint.
> If this turns out to be the problem, then caching should probably be
> disabled by default, because sequential consistency is more important
> than potential speed-ups.

This is fixed already in git master, see my other message. The trick was
to set "-o dir_cache=no", which disables the sshfs directory cache.

Best regards, Michael.

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