This patch fixes the kernel soft lockup issue with vxlan configuration where the tunneled packet is sent on the same bridge where vxlan port is attched to. It detects the loop in vxlan xmit functionb and drops if loop is detected.
Signed-off-by: Neelakantam Gaddam <[email protected]> --- datapath/linux/compat/vxlan.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/datapath/linux/compat/vxlan.c b/datapath/linux/compat/vxlan.c index 287dad2..00562fa 100644 --- a/datapath/linux/compat/vxlan.c +++ b/datapath/linux/compat/vxlan.c @@ -1115,7 +1115,8 @@ static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev, goto tx_error; } - if (rt->dst.dev == dev) { + if ((rt->dst.dev == dev) || + (OVS_CB(skb)->input_vport->dev == rt->dst.dev)) { netdev_dbg(dev, "circular route to %pI4\n", &dst->sin.sin_addr.s_addr); dev->stats.collisions++; @@ -1174,7 +1175,8 @@ static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev, goto tx_error; } - if (ndst->dev == dev) { + if ((ndst->dev == dev) || + (OVS_CB(skb)->input_vport->dev == ndst->dev)) { netdev_dbg(dev, "circular route to %pI6\n", &dst->sin6.sin6_addr); dst_release(ndst); -- 1.8.3.1 _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
