[dpdk-dev] [PATCH] net/i40e: fix unexpected mbuf free in vPMD

Bruce Richardson bruce.richardson at intel.com
Tue Oct 10 10:48:08 CEST 2017

+Roger Melton

On Tue, Oct 10, 2017 at 09:22:05AM -0400, Qi Zhang wrote:
> vPMD tx does not set sw_ring's mbuf to NULL after free it.
> So to prevent same mbuf be free again, we need more carefully
> check in i40e_tx_queue_release_mbufs.
> Fixes: b4669bb95038 ("i40e: add vector Tx")
> Cc: stable at dpdk.org
> Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
> ---
> v2:
> - fix at i40e_tx_queue_release_mbufs so no performance impact.
This patch also supercedes this one, http://dpdk.org/dev/patchwork/patch/29814/
Roger, can you please confirm that this alternative fix works in your
testing and that your patch is no longer necessary too.


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