On Thu, 6 Oct 2022 06:08:59 +0000 Dattu Gundu <[email protected]> wrote:
> Hi, > > I am observing the below errors during the bootup of Azure VM. > > I understand these errors started popping from DPDK 20.11.1 due to extended > ack support was added in Linux version 4.17 > And used for diagnosing the TAP config in kernel. > > Is it because we are trying to delete the qdisc before they are created ? > And looks like the failure is per queue. > > Am I missing any packages ? > > How to avoid these errors ? > If they are not serious, is there a way to suppress them ? > > net_vdev_netvsc: probably using routed NetVSC interface "s0p0" (index 7) > tap_nl_dump_ext_ack(): Cannot delete qdisc with handle of zero > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > net_vdev_netvsc: probably using routed NetVSC interface "s1p0" (index 8) > tap_nl_dump_ext_ack(): Cannot delete qdisc with handle of zero > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid > > Currently using below kernel: > 5.4.17 > x86_64 > GNU/Linux > #3 SMP PREEMPT Thu Aug 18 05:23:39 UTC 2022 > > Thanks, > Raghava Dattu. If possible use netvsc PMD and not the older vdev_netvsc/failsafe/tap stuff. Are you sure your kernel has all the necessary qdisc to run the failsafe/tap device. It needs to have flower, mirred, mqprio, etc.
