On 03/11/15 18:01, Justin Clift wrote: > On 10 Mar 2015, at 11:09, Bart Van Assche <bart.vanassche at sandisk.com> wrote: >> Hello, >> >> Sorry but I will not be able to attend this meeting because at that time I will be on a plane. But I have been thinking further about how to provide SCST RPMs for CentOS. How about using the approach documented on http://wiki.centos.org/HowTos/BuildingKernelModules (weak updates) and taking the risk that the IB drivers may break if an update introduces an RDMA ABI change ? > > The "take a risk X might break" bit doesn't really sound suitable > for the CentOS audience. > > That being said... how often does the RDMA ABI change? If it's > once every X years, then it might be live-able (with sufficient > catches/warning so users aren't affected). (back from traveling - sorry for the delay in replying) Hello Justin, So far I have only seen the RDMA ABI change between RHEL releases (e.g. from 7.0 to 7.1) but not yet due to a kernel update. Which of course is no guarantee that a change of the RDMA API will never happen in the future between kernel releases ... Bart.