On Tue, 8 Apr 2025 22:33:56 +0000 "Lombardo, Ed" <ed.lomba...@netscout.com> wrote:
> Hi Dmitry, > I added mbuf refcnt check at the point where we get the packets from DPDK > rte_eth_rx_burst() and I am finding many mbufs refcnt set to 2 when I expect > them to be 1. This is more evidence that something has gone wrong within > DPDK and the mempool management, perhaps, and I don't know how my setup went > into this state. I changed the traffic type from Telnet to Enterprise > traffic and rte_eth_tx_burst() no longer accepts mbufs. Not likely a DPDK bug. More likely you are having application problems. Have you tried enabling things like RTE_LIBRTE_MBUF_DEBUG and RTE_LIBRTE_MEMPOOL_DEBUG and RTE_ENABLE_ASSERT? Also using a current version of DPDK, address sanitizer, and latest GCC or CLANG can uncover issues with use after free.
