On Mon, Apr 3, 2023 at 5:05 AM Kal Conley kal.conley@dectris.com wrote:

This change fixes flakiness in the BIDIRECTIONAL test:

# [is_pkt_valid] expected length [60], got length [90]
not ok 1 FAIL: SKB BUSY-POLL BIDIRECTIONAL

When IPv6 is enabled, the interface will periodically send MLDv1 and MLDv2 packets. These packets can cause the BIDIRECTIONAL test to fail since it uses VETH0 for RX.

For other tests, this was not a problem since they only receive on VETH1 and IPv6 was already disabled on VETH0.

Fixes: a89052572ebb ("selftests/bpf: Xsk selftests framework") Signed-off-by: Kal Conley kal.conley@dectris.com

---

Can you please resubmit with [PATCH bpf-next] tag, so BPF CI can test it against the bpf-next tree. Thanks.

tools/testing/selftests/bpf/test_xsk.sh | 1 + 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/bpf/test_xsk.sh b/tools/testing/selftests/bpf/test_xsk.sh index b077cf58f825..377fb157a57c 100755 --- a/tools/testing/selftests/bpf/test_xsk.sh +++ b/tools/testing/selftests/bpf/test_xsk.sh @@ -116,6 +116,7 @@ setup_vethPairs() { ip link add ${VETH0} numtxqueues 4 numrxqueues 4 type veth peer name ${VETH1} numtxqueues 4 numrxqueues 4 if [ -f /proc/net/if_inet6 ]; then echo 1 > /proc/sys/net/ipv6/conf/${VETH0}/disable_ipv6

•           echo 1 > /proc/sys/net/ipv6/conf/${VETH1}/disable_ipv6
    fi
    if [[ $verbose -eq 1 ]]; then
            echo "setting up ${VETH1}"
  

-- 2.39.2