Bug#986905: systemd armhf: Attaching egress BPF program to cgroup failed

[Ryutaroh Matsumoto]

Control: retitle -1 systemd user instance: Attaching egress BPF program to cgroup failed with Invalid argument

> Currently, to trigger this issue, I need task-xfce-desktop (on every arch.).
> I believe that this can be reproduced without task-xfce-desktop,
> and will try to find a reproduction procedure with CUI in a weekend...

A minimal reproduction procedure of 986905 is as follows:
1. Install dbus-user-session, pulseaudio and libpam-systemd.
2. Add "DefaultIPAccounting=yes" to /etc/systemd/user.conf (reload systemd if necessary)
3. Login as a non-root user of UID >= 1000.
4. journalctl -b -g BPF as root.

Best regards, Ryutaroh