Please see the https://reviews.freebsd.org/D33154, igb driver doesn't honor the interface capabilities like vlanhwtag, vlan* and etc now. If you want, you can apply the patches from D33154
Regards, Özkan KIRIK On Tue, Dec 7, 2021 at 12:06 PM Marek Zarychta <zarych...@plan-b.pwste.edu.pl> wrote: > > W dniu 7.12.2021 o 10:00, Zhenlei Huang pisze: > >> Can you please disable all vlan hardware offloading features and repeat > >> the test again? > >> ifconfig igb0 -vlanmtu -vlanhwtag -vlanhwfilter -vlanhwtso -vlanhwcsum > > Disabling the capabilities listed above doesn't solve the issue, but > > assigning mtu 8996 to VLAN children does. > > Reproduced on the most recent 13-STABLE (13-n248421-3b936a8c889) while > > testing the fix[1] > > > > Try disabling all vlan hardware offloading features in rc.conf. > > > > ifconfig_igb0="mtu 9000 -vlanmtu -vlanhwtag -vlanhwfilter -vlanhwtso > > -vlanhwcsum up" > > ifconfig_igb1="mtu 9000 -vlanmtu -vlanhwtag -vlanhwfilter -vlanhwtso > > -vlanhwcsum up" > > It doesn't change anything. I am using workaround since the early > transition to 13 branch, but recently conducted small investigation and > finally submitted the PR[1] > > [1] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=260260 > > -- > Marek Zarychta
