From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Guntsche Subject: Re: [PATCH] barrier support for other md/raid levels Date: Sat, 19 Sep 2009 10:58:30 +0200 Message-ID: <20090919085830.GA84671@trillian.comsick.at> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline Sender: linux-raid-owner@vger.kernel.org To: linux-raid List-Id: linux-raid.ids >For what it's worth, I use XFS on one of my arrays, and whenever >mounting it, I get this error: > >[ 2212.567725] Filesystem "dm-0": Disabling barriers, trial barrier >write failed > >So I guess you could use XFS to run your tests. Just FYI, starting with 2.6.30 or 31-rcx you no longer get that message on a xfs->lvm->raid-5 setup. I am not sure if this is because lvm says it supports barriers or an XFS issue. This does not seem to be an uncommon setup so getting this working in the long run would be nice. Kind regards, Michael