Hi Martin,
> -----Original Message----- > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Martin Weiser > Sent: Wednesday, July 29, 2015 4:07 PM > To: Zhang, Helin; olivier.matz at 6wind.com > Cc: dev at dpdk.org > Subject: [dpdk-dev] Issue with non-scattered rx in ixgbe and i40e when mbuf > private area size is odd > > Hi Helin, Hi Olivier, > > we are seeing an issue with the ixgbe and i40e drivers which we could > track down to our setting of the private area size of the mbufs. > The issue can be easily reproduced with the l2fwd example application > when a small modification is done: just set the priv_size parameter in > the call to the rte_pktmbuf_pool_create function to an odd number like > 1. In our tests this causes every call to rte_eth_rx_burst to return 32 > (which is the setting of nb_pkts) nonsense mbufs although no packets are > received on the interface and the hardware counters do not report any > received packets.
