> -----Original Message----- > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Vincent Li > Sent: Thursday, May 05, 2016 12:21 AM > To: dev at dpdk.org > Subject: [dpdk-dev] virtio still blindly take over virtio device managed > by kernel > > Hi, > > I am running the dpdk git repo which already had commit ac5e1d838dc > (virtio: skip error when probing kernel managed device), but in my > test, it seems still taking control of the kernel managed virtio > device and segmentation fault, here is the example: > > # ./tools/dpdk_nic_bind.py --status > > Network devices using DPDK-compatible driver > ============================================ > 0000:00:07.0 'Virtio network device' drv=igb_uio unused= > 0000:00:08.0 'Virtio network device' drv=igb_uio unused= > > Network devices using kernel driver > =================================== > 0000:00:03.0 'Virtio network device' if= drv=virtio-pci unused=igb_uio > > #./x86_64-native-linuxapp-gcc/app/testpmd -c 0xf -n 4 -- -i > EAL: Detected 4 lcore(s) > EAL: Probing VFIO support... > EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using > unreliable clock cycles ! > EAL: PCI device 0000:00:03.0 on NUMA socket -1 > EAL: probe driver: 1af4:1000 rte_virtio_pmd > PMD: vtpci_init(): trying with legacy virtio pci. > Segmentation fault (core dumped) > > if I blacklist 0000:00:03.0 from testpmd, testpmd works: > > # ./x86_64-native-linuxapp-gcc/app/testpmd -c 0xf -n 4 -b 0000:00:03.0 - > - -i > EAL: Detected 4 lcore(s) > EAL: Probing VFIO support... > EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using > unreliable clock cycles ! > EAL: PCI device 0000:00:03.0 on NUMA socket -1 > EAL: PCI device 0000:00:07.0 on NUMA socket -1 > EAL: probe driver: 1af4:1000 rte_virtio_pmd > PMD: virtio_read_caps(): no modern virtio pci device found. > PMD: vtpci_init(): trying with legacy virtio pci. > EAL: PCI device 0000:00:08.0 on NUMA socket -1 > EAL: probe driver: 1af4:1000 rte_virtio_pmd > PMD: virtio_read_caps(): no modern virtio pci device found. > PMD: vtpci_init(): trying with legacy virtio pci. > Interactive-mode selected > Configuring Port 0 (socket 0) > rte_eth_dev_config_restore: port 0: MAC address array not supported > Port 0: 52:54:00:EA:6E:3E > Configuring Port 1 (socket 0) > rte_eth_dev_config_restore: port 1: MAC address array not supported > Port 1: 52:54:00:24:06:DB > Checking link statuses... > Port 0 Link Up - speed 10000 Mbps - full-duplex > Port 1 Link Up - speed 10000 Mbps - full-duplex > Done > testpmd>
Hi Vincent: Thanks for the info. Will check tomorrow to see what breaks this.
