https://bugs.dpdk.org/show_bug.cgi?id=559
Bug ID: 559
Summary: [dpdk-20.11]loopback_virtio_user_server_mode: failed
to start virtio-user with Virtio user server mode
Product: DPDK
Version: 20.11
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: vhost/virtio
Assignee: dev@dpdk.org
Reporter: xix.zh...@intel.com
Target Milestone: ---
steps:
x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1,2,3 -n 4
--file-prefix=virtio_88751_20201016012549 --no-pci --vdev
net_virtio_user0,mac=00:01:02:03:04:05,path=vhost-net,server=1,queues=1,packed_vq=1,in_order=0,mrg_rxbuf=1
-- -i --rxq=1 --txq=1 --no-numa
Actual results：
EAL: Detected 112 lcore(s)
EAL: Detected 2 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/virtio_88751_20201016012549/mp_socket
EAL: Selected IOVA mode 'VA'
EAL: Probing VFIO support...
EAL: VFIO support initialized
virtio_user_pmd_probe(): unable to determine backend type for path vhost-net
vdev_probe(): failed to initialize net_virtio_user0 device
EAL: Bus (vdev) probe failed.
testpmd: No probed ethernet devices
Interactive-mode selected
Fail: input rxq (1) can't be greater than max_rx_queues (0) of port 0
EAL: Error - exiting with code: 1
Cause: rxq 1 invalid - must be >= 0 && <= 0
root@virtio220:~/dpdk# rm -rf x86_64-native-linuxapp-gcc/
root@virtio220:~/dpdk# git reset --hard
86e71eb290bae5b7877ff706b28e7f29be0e40a2
HEAD is now at 86e71eb29 net/virtio: introduce DMA ops
Expect results:
Start virtio normally
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