Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751627AbWLVXqj (ORCPT ); Fri, 22 Dec 2006 18:46:39 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753280AbWLVXqj (ORCPT ); Fri, 22 Dec 2006 18:46:39 -0500 Received: from post-25.mail.nl.demon.net ([194.159.73.195]:59941 "EHLO post-25.mail.nl.demon.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751627AbWLVXqi (ORCPT ); Fri, 22 Dec 2006 18:46:38 -0500 Message-ID: <458C6E56.3070700@edsons.demon.nl> Date: Sat, 23 Dec 2006 00:46:30 +0100 From: Rudy Zijlstra User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-GB; rv:1.7.12) Gecko/20050923 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Peter Zijlstra CC: Trond Myklebust , nfs , Linux Kernel Mailing List Subject: Re: [NFS] Kernel BUG References: <458BC8AE.2030507@edsons.demon.nl> <1166794920.32117.42.camel@twins> In-Reply-To: <1166794920.32117.42.camel@twins> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1390 Lines: 48 Peter Zijlstra wrote: >On Fri, 2006-12-22 at 12:59 +0100, Rudy Zijlstra wrote: > > >>Hi, >> >>I have a system where whenever i trigger a ongoing consistent NFS load i >>get the following kernel BUG: >> >>---------- >>kernel BUG at mm/truncate.c:311! >> >> > >Lotsa changes there: >try these: > http://client.linux-nfs.org/Linux-2.6.x/2.6.19/linux-2.6.19-NFS_ALL.dif > >And: > http://lkml.org/lkml/2006/12/19/279 > > > Thanks, i have now a 2.6.19.1 patched with the above NFS_ALL patchset running under load since about 17:00 and still going strong. So seems to have solved the problem! Also, performance seems to have significantly increased. I am testing this with MythTv with the storage over NFS. With HD LiveTV (which is what i use to test this), this translates into about 43Mbps total load, from almost 15Mbps video stream which is present 3x on the ethernet: 1/ from card to NFS disk 2/ read from NFS disk 3/ stream to viewer app. Doing this with HD streams before the patch set resulted in regular picture hickups. No hickups visible anymore (that i have seen, i have not been present all this time). Regards, Rudy - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/