Hi all, We are working on kernel upgrade task recently [0]. After upgrade the kernel, we find several modules cannot pass build, due to data structure/function api change in kernel. Here is the module list cannot pass build with the new kernel: Mlnx-ofa_kernel Intel-i40e Intel-i40evf Tpmdd Intel-ixgbe drbd openvswitch To fix the build failure, I plan to upgrade these packages to newer version, which supports CentOS 7.6. This upgrade may cause other packages depend on these packages be upgraded also. Take Mlnx-ofa as example, it is bound with DPDK. Per [1], MLNX_OFED 4.5-1.0.1.0 supports CentOS 7.6. Per [2], DPDK should be upgraded to 18.11, while our current DPDK is 17.11, and is bound with OVS. And OVS upgrade may affect Neutron. I need network team to help decide the upgrade strategy of DPDK/OVS. Thanks. [0]: https://storyboard.openstack.org/#!/story/2004521 [1]: http://www.mellanox.com/page/products_dyn?product_family=26&mtag=linux_sw_drivers [2]: https://doc.dpdk.org/guides-18.11/rel_notes/release_18_11.html Best Regards Shuicheng