`Warn libxdp: Can't use dispatcher without a working bpffs`

[Jimmy-Z]

Warn libxdp: Can't use dispatcher without a working bpffs
Info libxdp: Falling back to loading single prog without dispatcher

it still works fine though.

tested on both ubuntu 24.04 (6.17.0-1014-oracle #14~24.04.1-Ubuntu) and debian trixie (6.12.90+deb13.1-amd64)

I'm using mimic 0.7.1 on ubuntu and 0.7.0 on debian.

[hack3ric]

Seems your bpffs is not mounted by default. It's for loading multiple XDP programs onto the same interface. If you don't need it, it's fine as is. We can probably add an auto mount though.

[hack3ric]

OK no, it's because the mimic user created in systemd scripts cannot access /sys/fs/bpf, which is mode 0700. So let me find a way to cleanly solve the permission issue.