> -----Original Message-----
> From: Zhang, Qi Z
> Sent: Saturday, May 4, 2019 5:30 PM
> To: Xing, Beilei <beilei.x...@intel.com>; Lu, Wenzhuo
> <wenzhuo...@intel.com>; Yang, Qiming <qiming.y...@intel.com>; Ananyev,
> Konstantin <konstantin.anan...@intel.com>
> Cc: dev@dpdk.org; Zhang, Qi Z <qi.z.zh...@intel.com>
> Subject: [PATCH 0/3] fix invalid Tx threshhold setup
>
> When tx_free_thresh + tx_rs_thresh > nb_desc, it is possible that an
> outdated DD status be checked as tx_next_dd, then segment fault happen
> due to free a NULL mbuf pointer.
>
> The issue usually happens with an aggresive tx_free_thresh, for example:
>
> ./testpmd -c 0x3 -n 4 -- -i --rxq=16 --txq=16 --rxd=1024 --txd=1024 --
> txfreet=1020
>
> The patchset fix this issue on i40e, ixgbe and ice.
>
> Qi Zhang (3):
> net/i40e: fix invalid Tx threshold setup
> net/ice: fix invalid Tx threshold setup
> net/ixgbe: fix invalid Tx threshold setup
>
> drivers/net/i40e/i40e_rxtx.c | 19 +++++++++++++++++--
> drivers/net/ice/ice_rxtx.c | 21 ++++++++++++++++++---
> drivers/net/ixgbe/ixgbe_rxtx.c | 19 +++++++++++++++++--
> 3 files changed, 52 insertions(+), 7 deletions(-)
>
> --
> 2.13.6
Acked-by: Beilei Xing <beilei.x...@intel.com>
