#1111237 qbittorrent-nox: memory usage climbs past 4gb downloading single torrent

Package:
qbittorrent-nox
Source:
qbittorrent-nox
Description:
bittorrent client based on libtorrent-rasterbar (without X support)
Submitter:
Ruly Tazil
Date:
2025-08-16 00:01:02 UTC
Severity:
normal
#1111237#5
Date:
2025-08-15 23:59:59 UTC
From:
To:
Dear Maintainer,

I was previously using Debian 12 and the stable version of qbittorrent-nox from there 4.x. I run qbittorrent-nox in an LXC in proxmox.
The LXC is allocated 2gb ram, and 512MB swap. If I restore a backup from then, Deb 12 qbt 4.x, I can see memory usage barely climbs
when downloading torrents.

upgraded to Deb 13, along w/new qbttorrent-nox.

When I download a torrent, the OOM killer kills the qbittorrent service.
I check the memory usage on the container with free -h and it shows no memory available.
If I watch the memory usage with top, it shows qbittorrent-nox memory usage going up to 100% before oom kills it.

When I check the log on the host, running
dmesg -T | grep -i qbittorrent

it shows that qbittorrent-nox is being killed, but with anon-rss:26xxxkB I forget the exact amount, but ~26 mB.

Honestly I'm not sure what's going on. It seems like it's only using 26mB, but the container is running out of memory.




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