[dolphin] [Bug 460094] New: Dolphin Freeze while opening nfs mount with several restricted folders

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=460094

            Bug ID: 460094
           Summary: Dolphin Freeze while opening nfs mount with several
                    restricted folders
    Classification: Applications
           Product: dolphin
           Version: 22.04.1
          Platform: Fedora RPMs
                OS: Linux
            Status: REPORTED
          Severity: crash
          Priority: NOR
         Component: panels: folders
          Assignee: dolphin-bugs-null at kde.org
          Reporter: rasmus.oltrogge at energymeteo.de
                CC: kfm-devel at kde.org
  Target Milestone: ---

Created attachment 152629
  --> https://bugs.kde.org/attachment.cgi?id=152629&action=edit
Notification pop-ups

SUMMARY
Dolphin and Taskbar freezes completely for several seconds (even minutes
sometimes)

STEPS TO REPRODUCE
1. mount nfs point with several folders without having even read rights on them
(except for the one you have access to) (it is a nfs4 mountpoint. maybe it is
related to that)
2. try opening mountpoint via Dolphin
3. await several notifications, that it was not able to open the folders
4. then everything works again

OBSERVED RESULT
- fan speed increases (due to higher CPU load?)
- Dolphin freezes for a few seconds
- Taskbar, Application Starter, Widgets etc. freeze until...
- ...several notifications pop up, that the filesystem does not respond.
- then it works again

EXPECTED RESULT
- no freeze while opening mountpoint with several access restricted folders
- immediate opening of the mountpoint
(- maybe even hiding the folders, the user does not have access to?)

SOFTWARE/OS VERSIONS
Linux/KDE Plasma:  Fedora 36
KDE Plasma Version: 5.25.5
KDE Frameworks Version: 5.98.0
Qt Version: 5.15.6

ADDITIONAL INFORMATION
maybe similar to 412724

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