[korganizer] [Bug 425920] New: Runaway memory usage at startup

[Glen Whitney]

https://bugs.kde.org/show_bug.cgi?id=425920

            Bug ID: 425920
           Summary: Runaway memory usage at startup
           Product: korganizer
           Version: 5.15.0
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: major
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: whitney+kde at mynote.space
  Target Milestone: ---

Created attachment 131253
  --> https://bugs.kde.org/attachment.cgi?id=131253&action=edit
standard output when running "korganizer" from the terminal prompt

KOrganizer uses an unlimited amount of memory, increasing up to and beyond 30GB
(at which point it essentially hangs my system). This memory usage was tracked
by LXTask 0.1.9; KOrganizer produced no graphical output during the memory
buildup. (It did produce a bit of text to stdout, which I attach below in case
it is of value.)


STEPS TO REPRODUCE
1. This is a OpenSUSE Tumbleweed system, kept regularly updated, mostly running
XFCE with a few various apps from other desktops thrown in -- but without the
full KDE  installed.
2. (It is probably worth noting that an earlier point, I did have KDE on the
system, and tried KOrganizer using several calendars with at least hundreds of
events, _maybe_ a thousand or two. However, I not only uninstalled KDE, I also
deleted .kde*, .config/korga*, .config/akonadi*, .local/share/korg*, and
.local/share/akonadi* -- so I certainly _attempted_ to restore KOrganizer to a
"clean install" state. Of course, possibly I did not succeed, and if there are
any suggestions of other files/configuration to eliminate to ameliorate the
runaway memory usage, I would be glad to hear.)
3. Installed korganizer via "sudo zypper install korganizer."
4. Verified outcome of installation via "korganizer --version", which prints
"korganizer 5.15.0 (20.08.0)"

OBSERVED RESULT
Starting korganizer from the shell produces the attached output to stdout; no
window is shown; memory usage as reported by LXTask grows rapidly into the
multiple gigabytes, bringing the machine to its knees after approximately five
minutes.

EXPECTED RESULT
KOrganizer would start up, and display a window with its normal functions,
using a reasonably normal amount of memory -- hopefully less than a few
gigabytes.


SOFTWARE/OS VERSIONS
Linux: OpenSUSE Tumbleweed, running Linux 5.8.0-1
KDE Plasma Version: n/a; installed korganizer a la carte using zypper
KDE Frameworks Version: (not sure/how to check? -- whatever Tumbleweed is
currently distributing)
Qt Version:  (ditto)

ADDITIONAL INFORMATION
This and Okular are the only KDE applications I have reinstalled after removing
KDE entirely from the system a few months ago. (KOrganizer was definitely my
favorite KDE app and I wanted to see if I could perhaps use it in an ecosystem
of mainly non-KDE items. I installed Okular because there are few good
PDF-processing applications available on Linux, and it runs without notable
difficulty.) I am happy to provide further information if anyone reading this
can suggest specific experiments to try or commands to post the output of.
Thanks!

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