> On Oct 28, 2015, at 3:30 PM, Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx> wrote: > > On Wed, Oct 28, 2015 at 2:56 PM, Chuck Lever <chuck.lever@xxxxxxxxxx> wrote: >> Hi- >> >> I’m beginning to try Kerberos with NFS/RDMA. I get this complaint >> from GSSD: >> >> Oct 28 13:10:02 manet rpc.gssd[2549]: WARNING: unrecognized >> protocol, 'rdma', requested for connection to server >> klimt-ib.1015granger.net for user with uid 0 >> >> Should I change the kernel NFS client to tell GSSD it’s using >> TCP, or should I change GSSD to recognize RDMA as another form >> of TCP? >> > > gssd expects to be able to connect to the IP address that we pass in > the upcall. If we can guarantee that IP address can always be resolved > in a TCP connection attempt, then let's lie, and call it TCP. NFS/RDMA still requires IPoIB to provide IP addresses that resolve to GUIDs, so I think we can make that guarantee. Still, do you prefer the kernel to lie, or for GSSD to lie? Changing GSSD might be more future-proof. —- Chuck Lever -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
