Hi,

with a file chroot, mini-buildd mounts the tmpfs filesystems with
default options, which, on a 4 GB system, creates the tmpfs with  GB
size regardless of how much swaqp space is available. For big packages,
this is not enough, especially on systemd that build multiple arches,
since the builds run concurrently.

There should be the possibility to make the tmpfses larger, either
globally in the web frontend, or on a per-package basis via magic
commments.

Greetings
Marc