[Lustre-discuss] 1.8.1(-ish) client vs. 1.6.7.2 server

[Robin Humble]

I get a ferocious set of error messages when I mount a 1.6.7.2
filesystem on a b_release_1_8_1 client.
is this expected?

  Lustre: 13800:0:(o2iblnd_cb.c:459:kiblnd_rx_complete()) Rx from 10.8.30.244 at o2ib failed: 5
  Lustre: 13799:0:(o2iblnd_cb.c:459:kiblnd_rx_complete()) Rx from 10.8.30.244 at o2ib failed: 5
  Lustre: 615:0:(o2iblnd_cb.c:2384:kiblnd_reconnect()) 10.8.30.244 at o2ib: retrying (version negotiation), 12, 11, queue_dep: 8, max_frag: 256, msg_size: 4096
  Lustre: MGC10.8.30.244 at o2ib: Reactivating import
  Lustre: 13797:0:(o2iblnd_cb.c:459:kiblnd_rx_complete()) Rx from 10.8.30.245 at o2ib failed: 5
  Lustre: 13798:0:(o2iblnd_cb.c:459:kiblnd_rx_complete()) Rx from 10.8.30.245 at o2ib failed: 5
  Lustre: 615:0:(o2iblnd_cb.c:2384:kiblnd_reconnect()) 10.8.30.245 at o2ib: retrying (version negotiation), 12, 11, queue_dep: 8, max_frag: 256, msg_size: 4096
  Lustre: Client system-client has started
  Lustre: 13798:0:(o2iblnd_cb.c:459:kiblnd_rx_complete()) Rx from 10.8.30.201 at o2ib failed: 5
  ... last message repeated 17 times ...
  Lustre: 615:0:(o2iblnd_cb.c:2384:kiblnd_reconnect()) 10.8.30.201 at o2ib: retrying (version negotiation), 12, 11, queue_dep: 8, max_frag: 256, msg_size: 4096
  Lustre: 615:0:(o2iblnd_cb.c:2384:kiblnd_reconnect()) 10.8.30.202 at o2ib: retrying (version negotiation), 12, 11, queue_dep: 8, max_frag: 256, msg_size: 4096
  Lustre: 13798:0:(o2iblnd_cb.c:459:kiblnd_rx_complete()) Rx from 10.8.30.203 at o2ib failed: 5
  Lustre: 615:0:(o2iblnd_cb.c:2384:kiblnd_reconnect()) 10.8.30.203 at o2ib: retrying (version negotiation), 12, 11, queue_dep: 8, max_frag: 256, msg_size: 4096
  Lustre: 615:0:(o2iblnd_cb.c:2384:kiblnd_reconnect()) 10.8.30.204 at o2ib: retrying (version negotiation), 12, 11, queue_dep: 8, max_frag: 256, msg_size: 4096
  Lustre: 13797:0:(o2iblnd_cb.c:459:kiblnd_rx_complete()) Rx from 10.8.30.205 at o2ib failed: 5
  Lustre: 615:0:(o2iblnd_cb.c:2384:kiblnd_reconnect()) 10.8.30.205 at o2ib: retrying (version negotiation), 12, 11, queue_dep: 8, max_frag: 256, msg_size: 4096
  Lustre: 615:0:(o2iblnd_cb.c:2384:kiblnd_reconnect()) 10.8.30.206 at o2ib: retrying (version negotiation), 12, 11, queue_dep: 8, max_frag: 256, msg_size: 4096
  Lustre: 615:0:(o2iblnd_cb.c:2384:kiblnd_reconnect()) 10.8.30.207 at o2ib: retrying (version negotiation), 12, 11, queue_dep: 8, max_frag: 256, msg_size: 4096
  Lustre: 615:0:(o2iblnd_cb.c:2384:kiblnd_reconnect()) 10.8.30.208 at o2ib: retrying (version negotiation), 12, 11, queue_dep: 8, max_frag: 256, msg_size: 4096
  Lustre: 13800:0:(o2iblnd_cb.c:459:kiblnd_rx_complete()) Rx from 10.8.30.208 at o2ib failed: 5

looks like it succeeds in the end, but only after a struggle.

I don't have any problems with 1.8.1 <-> 1.8.1 or 1.6.7.2 <-> 1.6.7.2.

servers are rhel5 x86_64 2.6.18-92.1.26.el5 1.6.7.2 + bz18793 (group
quota fix).
client is rhel5 x86_64 patched 2.6.18-128.1.16.el5-b_release_1_8_1 from
cvs 20090712131220 + bz18793 again.

BTW, should I be using cvs tag v1_8_1_RC1 instead of b_release_1_8_1?
I'm confused about which is closest to the final 1.8.1 :-/

cheers,
robin
--
Dr Robin Humble, HPC Systems Analyst, NCI National Facility