From: "Dan Williams" Subject: Re: 64k Page size + ext3 errors Date: Mon, 28 Jul 2008 01:04:39 -0700 Message-ID: References: <576234.24141.qm@web81307.mail.mud.yahoo.com> <65201.98.240.208.105.1217209925.squirrel@sandeen.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: "tirumalareddy marri" , linux-raid@vger.kernel.org, linux-ext4@vger.kernel.org To: sandeen@sandeen.net Return-path: Received: from wr-out-0506.google.com ([64.233.184.225]:53360 "EHLO wr-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752349AbYG1IEk (ORCPT ); Mon, 28 Jul 2008 04:04:40 -0400 Received: by wr-out-0506.google.com with SMTP id 69so3704858wri.5 for ; Mon, 28 Jul 2008 01:04:39 -0700 (PDT) In-Reply-To: <65201.98.240.208.105.1217209925.squirrel@sandeen.net> Content-Disposition: inline Sender: linux-ext4-owner@vger.kernel.org List-ID: On Sun, Jul 27, 2008 at 6:52 PM, wrote: >> I am using HW accelerated XOR engine for RAID-5 . I am seeing EXT3-fs >> errors when I use 64K page size. When I use 4K page size I don't see any >> issue. As many of you know, we will get better performance when we store >> bigger files like videos. > > Do you think it is specific to the filesystem on raid-5? Have you tested > w/o md? I'd be a little surprised if the problem is at the raid layer (so > cc'ing the ext3/4 list), but maybe you tested that already. > > Which arch is it, and which kernel? How big is the filesystem? With full > geometry information it might be easier for someone to reproduce & debug. > Marri, can you post your XOR driver the problem may be there. Thanks, Dan