[dolphin] [Bug 423187] Dolphin freezes when opening rclone or other FUSE mounts

[Jens]

https://bugs.kde.org/show_bug.cgi?id=423187

Jens <jens-bugs.kde.org at spamfreemail.de> changed:

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--- Comment #23 from Jens <jens-bugs.kde.org at spamfreemail.de> ---
I am having this issue as well with a Synology NAS which is not available all
the time (it automatically shuts down at midnight and is only woken up via WOL
on demand). The NAS shares are in fstab, as user mounts.
But if I do not umount all shares of this NAS before it shuts down, every
File/Open dialog, and Dolphin, will freeze for minutes, on every file system
access.

"sudo umount -a -t cifs -l" on the command line fixes this, but is a dirty
workaround.

We need to uncouple all KIO accesses to mounts which *may* be unresponsive
(i.e. user mounts?) from the thread that controls the UI. It must be possible
to move away from an unresponsive folder inside Dolphin or a file dialog window
*without* having to wait for a timeout - and even so, the timeouts should not
be minutes long.

Can I help debug this somehow, provide strace logs or test?
I am using KDE Neon 24.04 with all KDE updates applied, so should be fairly
recent.

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