Return-Path: Received: from linuxhacker.ru ([217.76.32.60]:54396 "EHLO fiona.linuxhacker.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933333AbcIFQ3l (ORCPT ); Tue, 6 Sep 2016 12:29:41 -0400 Subject: Re: 4.6, 4.7 slow ifs export with more than one client. Mime-Version: 1.0 (Apple Message framework v1283) Content-Type: text/plain; charset=us-ascii From: Oleg Drokin In-Reply-To: <1473177653.13234.22.camel@redhat.com> Date: Tue, 6 Sep 2016 12:29:33 -0400 Cc: linux-nfs@vger.kernel.org Message-Id: <3362C9C5-7F87-462C-B1C4-D704B45B84BE@linuxhacker.ru> References: <6C329B27-111A-4B16-84F4-7357940EBC01@linuxhacker.ru> <1473172215.13234.8.camel@redhat.com> <1473175124.13234.16.camel@redhat.com> <05AA5CE8-143C-4CB7-AFF0-36BE495AA328@linuxhacker.ru> <1473177653.13234.22.camel@redhat.com> To: Jeff Layton Sender: linux-nfs-owner@vger.kernel.org List-ID: On Sep 6, 2016, at 12:00 PM, Jeff Layton wrote: > > Shrug...feel free to propose a better scheme for generating unique ids > if you can think of one. Unfortunately, there are always cases when > these mechanisms for getting a persistent+unique id break down. > > That's the reason that nfs provides an interface to allow setting a > uniquifier from userland via module param. Fair enough, though I guess module parameter is not really a super convenient place for it when you run off nfs-root. I guess you were not really enticed with the mac address idea too ;) Anyway, thank you very much for your help, now I have some better idea of what's going on and what to try next.