https://bugs.kde.org/show_bug.cgi?id=500769
Bug ID: 500769
Summary: Very high memory usage and lockup of entire system
Classification: Applications
Product: okular
Version: 24.12.2
Platform: Flatpak
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: PDF backend
Assignee: okular-devel@kde.org
Reporter: boredsquir...@secure.mailbox.org
Target Milestone: ---
I assume this is an Okular bug.
1. I startup my system, Fedora Kinoite 41
2. I open firefox, it loads a lot of tabs. I open dolphin and open 2 PDFs, 11MB
and 22MB
3. the desktop locks up and nothing works anymore, not even switching to a
different TTY, I need to hard reboot.
I thought this was a kernel bug but I didnt even upgrade it. I was able to
reproduce this when only opening a single 11MB document too.
I rebooted, opened FF, dolphin, but launched Okular Flatpak from Konsole. Then
I slowly opened one document, no crash but my fan started spinning a lot. no
terminal output or errors.
I opened the second one, so 30MB on disk, no idea how much in RAM.
But I checked and Okular uses 6GB RAM, and took pretty long to settle down from
12% CPU or more.
One of the PDFs: https://doi.org/10.1007/978-0-387-34445-4
Operating System: Fedora Linux 41
KDE Plasma Version: 6.3.1
KDE Frameworks Version: 6.11.0
Qt Version: 6.8.2
Kernel Version: 6.12.15-200.fc41.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 8 × 11th Gen Intel® Core™ i7-1165G7 @ 2.80GHz
Memory: 31.2 GiB of RAM
Graphics Processor: Mesa Intel® Iris® Xe Graphics
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