+
+* Device start fails if NIC's max queues > the default number of 128
+
+ mbuf pool size is dependent on the MAX_QUEUES configuration, if NIC's
+ max queue number is larger than 128, device start will fail due to
+ insufficient mbuf.
+
+ Change the default number to make it work as below, just set the number
+ according to the NIC's property. ::
+
+ make EXTRA_CFLAGS="-DMAX_QUEUES=320"
+
+* Option "builtin-net-driver" is incompatible with QEMU
+
+ QEMU vhost net device start will fail if protocol feature is not negotiated.
+ DPDK virtio-user pmd can be the replacement of QEMU.