Replying to myself, this looks to be the same problem as was reported by Sven earlier this week: http://www.spinics.net/lists/linux-nfs/msg37454.html Happy to assist in debugging and getting this resolved. Richard > Some details: > > Client: debian unstable "Sid", kernel 3.9.0 (nfs-common=1.2.8-4) > Server: debian 7.0 "Wheezy", nfs-common=1.2.6-3 > > When upgrading the server to 3.9.0-rc1, it's giving access denied > When upgrading the server to 3.9.0 or 3.9.5, it's locking > > There is no error on the server, but the logfile on the client mentions > the following: > > rpc.gssd[1930]: ERROR: GSS-API: error in gss_free_lucid_sec_context(): > GSS_S_NO_CONTEXT (No context has been established) - Unknown error > Jun 8 21:22:42 dell rpc.gssd[1930]: WARN: failed to free lucid sec > context -- 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