From: "Lever, Charles" Subject: RE: Data coherency trouble with multiple clients, on2.6.14-rc5 Date: Wed, 26 Oct 2005 08:27:57 -0700 Message-ID: <044B81DE141D7443BCE91E8F44B3C1E288E5A5@exsvl02.hq.netapp.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: Return-path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.92] helo=mail.sourceforge.net) by sc8-sf-list2.sourceforge.net with esmtp (Exim 4.30) id 1EUnCA-0001M2-LB for nfs@lists.sourceforge.net; Wed, 26 Oct 2005 08:28:06 -0700 Received: from mx1.netapp.com ([216.240.18.38]) by mail.sourceforge.net with esmtp (Exim 4.44) id 1EUnCA-0005OL-7h for nfs@lists.sourceforge.net; Wed, 26 Oct 2005 08:28:06 -0700 To: "Trond Myklebust" , "Charles Duffy" Sender: nfs-admin@lists.sourceforge.net Errors-To: nfs-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: Discussion of NFS under Linux development, interoperability, and testing. List-Post: List-Help: List-Subscribe: , List-Archive: > > The client mount options are: = noac,nocto,sync,hard,intr,rw,nfsvers=3D3 > > The server exports flags are:=20 > (rw,no_root_squash,sync,no_wdelay,insecure) > >=20 > > Various combinations of the above mount options make no difference. > > I've also tried with a 2.6.14-rc5 server, and the problem persists. >=20 > It sounds like you are really looking for the O_DIRECT (i.e. uncached) > file I/O mode. i agree that O_DIRECT is the right solution. however, even with "noac" i would expect mr. duffy's workload to behave correctly most of the time. sounds like he is able to make it fail very easily. ------------------------------------------------------- This SF.Net email is sponsored by the JBoss Inc. Get Certified Today * Register for a JBoss Training Course Free Certification Exam for All Training Attendees Through End of 2005 Visit http://www.jboss.com/services/certification for more information _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs