https://bugs.kde.org/show_bug.cgi?id=444631
Bug ID: 444631
Summary: Freezes with Dolphin and Kate, system slowdown,
eventual kwin crash
Product: plasmashell
Version: 5.23.1
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: k...@davidedmundson.co.uk
Reporter: friedmann.christop...@gmail.com
CC: plasma-b...@kde.org
Target Milestone: 1.0
SUMMARY
This is strange and I wasn't sure which component to file this under. When
moving or copying files, especially into or within ~/.local/share/applications,
Dolphin will usually freeze until ~/.cache is deleted. The freezes occur both
when copying/cutting & pasting from Dolphin's context menu, and when using mv
or cp from the terminal while Dolphin is open. Kate started randomly freezing
around the same time, but this is much more random and I haven't been able to
figure out under what circumstances it happens. In both cases, /var/logs/warn
shows entries regarding ksycoca's database being corrupted. If left alone, kwin
eventually crashes, otherwise deleting ~/.cache sets things back to normal.
Other applications generally remain responsive, but new applications can't be
opened.
STEPS TO REPRODUCE
1. Move or copy a file via Dolphin's context menu or using mv/cp in the
terminal
2.
3.
OBSERVED RESULT
Dolphin freezes, system performance slows down until eventually kwin crashes.
Log shows something like this:
2021-10-27T20:16:51.728325+03:00 no-bueno kstart5[3027]: kf.service.sycoca:
Couldn't lock
"/home/chris/.cache/ksycoca5_en_Jqcej_lUhG54bWkXI2aMdZrI3EA=.lock"
2021-10-27T20:16:51.938125+03:00 no-bueno dolphin[2915]: kf.service.sycoca:
QThread(0x563b67155050) error detected in factory 0x563b6745d700
2021-10-27T20:16:51.938318+03:00 no-bueno dolphin[2915]: kf.service.sycoca:
ERROR: KSycoca database corruption!
2021-10-27T20:16:55.527783+03:00 no-bueno dolphin[2915]: Could not remove our
own lock file
"/home/chris/.cache/ksycoca5_en_Jqcej_lUhG54bWkXI2aMdZrI3EA=.lock" maybe
permissions changed meanwhile?
2021-10-27T20:16:59.671443+03:00 no-bueno kded5[2014]: kf.service.sycoca:
QThread(0x55f1a233bcc0) error detected in factory 0x55f1a49046e0
2021-10-27T20:16:59.671646+03:00 no-bueno kded5[2014]: kf.service.sycoca:
ERROR: KSycoca database corruption!
EXPECTED RESULT
Normal file moving operations.
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma: OpenSuse Tumbleweed (20211027 snapshot)
(available in About System)
KDE Plasma Version: 5.23.1
KDE Frameworks Version: 5.87.0
Qt Version: 5.15.2
ADDITIONAL INFORMATION
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