RX pps not shown since Kernel update (netlink module)

[Hauke Lampe]

In Ubuntu Jammy, the netlink module does not record incoming pps anymore. Downgrading bmon from 1:4.0-8 to 1:4.0-6 did not change the output.

Kernel: 5.15.0-50-generic

# lsb_release -rd
Description: Ubuntu 22.04.1 LTS
Release: 22.04

# bmon -i netlink:notc -o ascii -p e*
Interfaces RX bps pps % TX bps pps %
  eth0 0 0 0 0
Interfaces RX bps pps % TX bps pps %
  eth0 135.67KiB 0 134.03KiB 1.50K
Interfaces RX bps pps % TX bps pps %
  eth0 136.84KiB 0 135.21KiB 1.51K

The proc module shows pps in both directions:
# bmon -i proc -o ascii
Interfaces RX bps pps % TX bps pps %
  lo 0 0 0 0
  eth0 0 0 0 0
Interfaces RX bps pps % TX bps pps %
  lo 0 0 0 0
  eth0 145.77KiB 1.62K 144.76KiB 1.61K
Interfaces RX bps pps % TX bps pps %
  lo 0 0 0 0
  eth0 137.48KiB 1.54K 136.40KiB 1.52K

It does work in Focal:

Kernel: 5.4.0-131-generic

# lsb_release -rd
Description: Ubuntu 20.04.5 LTS
Release: 20.04

# bmon -i netlink:notc -o ascii -p e*
Interfaces RX bps pps % TX bps pps %
  eth0 0 0 0 0
Interfaces RX bps pps % TX bps pps %
  eth0 3.29MiB 9.95K 3.95MiB 10.14K
Interfaces RX bps pps % TX bps pps %
  eth0 3.23MiB 9.44K 3.62MiB 9.62K