qBittorrent consuming nearly all system resources

[adrianjbone]

qBittorrent & operating system versions

qBittorrent: v5.0.0 (64bit)
Operating system: Linux lancaster 6.11.2-amd64 #1 SMP PREEMPT_DYNAMIC Kali 6.11.2-1kali1 (2024-10-15) x86_64 GNU/Linux
Qt: 6.6.2
Libtorrent: 2.0.10.0

What is the problem?

Qbittorrent is consuming all available memory. 4.5GB + 4.6GB reserve memory + 34.8GB virtual memory - according to the output of 'top'. Also consuming 70% of CPU. I do not have root access to see the output of anything in /var/log, but there is this line repeated about 20 times in the output of dmesg

[217717.241685] systemd-journald[527]: Under memory pressure, flushing caches.

Steps to reproduce

To reproduce I opened qBittorrent and didn't touch it. There were 6 torrents seeding, totalling around 30GB in size. I checked how it was going after around 20 minutes and it was consuming resources again as described above

Additional context

Log(s) & preferences file(s)

qbittorrent.log
watched_folders.json
categories.json

[qBittUser]

Can you reproduce with newer qBittorrent v5.0.2 even with libtorrent v1.2.19+?

[HanabishiRecca]

Looks like a duplicate of #21502.

[adrianjbone]

Its difficult for me to reproduce without root, my apologies. My only device to use has a broken laptop screen and I've lost root with a careless recursive chown command.. external monitor doesnt work early enough in the boot process to see BIOS options to start reinstall. Anyway with this also being a duplicate I'm happy for it to be closed or deleted or whatever is appropriate