[lustre-discuss] lctl ping issue on 2.7.19

Colin Faber cfaber at gmail.com
Sat Nov 11 13:21:15 PST 2017


What's your current configuration look like? modprobe settings on clients /

Also, which version of the built-in driver are you using?


On Nov 11, 2017 8:37 AM, "john casu" <john at chiraldynamics.com> wrote:

Have a bizarre issue, where I can lctl ping between clients and lctl ping
between servers
but cannot ping between a client and a server.

on my server, I see the following error that seems to explain the issue:
Nov 10 09:19:01 mds1 kernel: LNet:
Can't accept conn from at o2ib (version 12): max_frags 256 too
large (32 wanted)

Does anyone have any advice on how to simply resolve this?

I'm running 3.10.0-514.10.2.el7_lustre.x86_64 on the server (centos 7.2
base) and
3.10.0-514.10.2.el7_lustre.x86_64 on the client (centos 7.3 base)
also using built in IB drivers.

-john c.
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