Le jeudi 02 janvier 2014 à 16:33 +0000, Hefty, Sean a écrit : > > After reading quickly the thread, I still believe that's sound like a > > kernel regression which broke existing userspace applications. > > > > So a patch must be applied on the kernel to fix that regression. > > When AF_IB was added to the kernel, corresponding changes were added to the > librdmacm. > Those changes to the librdmacm are the cause of the issue. >
I was missing this part, the original message was misleading for me. So it's the combination of librdmacm >= 1.0.17 and kernel >= 3.10+ which is affected by the problem reported. > The kernel rdma cm previously supported a single 'query' call. > With AF_IB, it supports the original call, plus 3 additional calls. > The problem is the librdmacm using the newer query calls. > > > Introducing AF_IB must not have changed the behavor for existing > > applications. Existing applications must not need a new librdmacm when > > they don't use newer kernel extensions. > > An older version of the librdmacm that does NOT support AF_IB should work > fine. > Thanks for clarifying this for me. Regards. -- Yann Droneaud OPTEYA -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
