So, did some more testing.
1) Tried two different ports for binding interface on the 4-port-NIC:
again kernel panic
2) Compiled mainline 5.14-rc1 (2021-07-11) kernel from kernel.org: again
kernel panic with either two ports on the 4-port-NIC
3) Added another 2-port-NIC into server:
06:01.0 Ethernet controller: Intel Corporation 82546EB Gigabit Ethernet
Controller (Copper) (rev 03)
06:01.1 Ethernet controller: Intel Corporation 82546EB Gigabit Ethernet
Controller (Copper) (rev 03)
driver: e1000
version: 7.3.21-k8-NAPI
When configuring a two port bonding interface on this Intel NIC there is
no kernel panic neither with 5.14-rc1 nor 4.19.0-17-amd64.
For me it seems there is an issue with the bnx2 driver used for the
Broadcom Limited NetXtreme II BCM5709 Gigabit Ethernet (rev 20).
Cheers,
spi
