Hi, I was going through the openvswitch+dpdk tutorial and wanted to add a virtual function (VF) to a bridge as a dpdk interface.
I can bind the VF to the vfio-pci driver successfully with dpdk-devbind.py, but as soon as I add the interface to an ovs bridge (in netdev mode), openvswitch goes in segmentation fault and continuously tries to restart itself. I'm running openvswitch 2.8.1 and dpdk 17.11 on Debian jessie with Linux kernel 4.6. Is this a known problem? Is there a fix? I have the same issue with VFs bound to igb_uio, whereas with real physical interfaces it works just fine. Here are the relevant lines from ovs-vswitchd.log: 2018-01-10T15:53:26.949Z|00157|dpdk|INFO|PMD: igbvf_dev_configure(): VF can't disable HW CRC Strip 2018-01-10T15:53:26.949Z|00158|netdev_dpdk|ERR|Interface 0.extra2 MTU (1500) setup error: Operation not supported 2018-01-10T15:53:26.949Z|00159|netdev_dpdk|ERR|Interface 0.extra2(rxq:1 txq:1) configure error: Operation not supported 2018-01-10T15:53:27.333Z|00066|daemon_unix(monitor)|ERR|fork child died before signaling startup (killed (Segmentation fault)) 2018-01-10T15:53:27.333Z|00067|daemon_unix(monitor)|WARN|23 crashes: pid 21413 died, killed (Segmentation fault), core dumped, waiting until 10 seconds since last restart 2018-01-10T15:53:33.333Z|00068|daemon_unix(monitor)|ERR|23 crashes: pid 21413 died, killed (Segmentation fault), core dumped, restarting Thanks! Riccardo
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