From owner-freebsd-fs@FreeBSD.ORG Thu Mar 5 16:10:29 2009 Return-Path: Delivered-To: freebsd-fs@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E3E9F1065670 for ; Thu, 5 Mar 2009 16:10:29 +0000 (UTC) (envelope-from weldon@excelsus.com) Received: from mx0.excelsus.net (emmett.excelsus.com [74.93.113.252]) by mx1.freebsd.org (Postfix) with ESMTP id 7F9078FC13 for ; Thu, 5 Mar 2009 16:10:29 +0000 (UTC) (envelope-from weldon@excelsus.com) Received: (qmail 28880 invoked by uid 89); 5 Mar 2009 15:43:47 -0000 Received: from unknown (HELO localhost) (127.0.0.1) by localhost.excelsus.com with SMTP; 5 Mar 2009 15:43:47 -0000 Date: Thu, 5 Mar 2009 10:43:46 -0500 (EST) From: Weldon S Godfrey 3 To: Mark Linimon In-Reply-To: <200903051530.n25FU87g023142@freefall.freebsd.org> Message-ID: <20090305103355.B17525@emmett.excelsus.com> References: <200903051530.n25FU87g023142@freefall.freebsd.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: freebsd-fs@FreeBSD.org Subject: Re: kern/132068: [zfs] page fault when using ZFS over NFS on 7.1-RELEASE/amd64 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Mar 2009 16:10:30 -0000 If memory serves me right, sometime around 3:30pm, Mark Linimon told me: > The following reply was made to PR kern/132068; it has been noted by GNATS. > > From: Mark Linimon > To: bug-followup@FreeBSD.org > Cc: > Subject: Re: kern/132068: [zfs] page fault when using ZFS over NFS on > 7.1-RELEASE/amd64 > Date: Thu, 5 Mar 2009 09:29:39 -0600 > > ----- Forwarded message from Edward Fisk <7ogcg7g02@sneakemail.com> ----- > > To: freebsd-bugs@FreeBSD.org > From: Edward Fisk <7ogcg7g02@sneakemail.com> > Subject: Re: kern/132068: [zfs] page fault when using ZFS over NFS on > 7.1-RELEASE/amd64 > > kern/129174 looks like a similar problem, altohugh there's not much > useful information there > > ----- End forwarded message ----- > _______________________________________________ Are you using v3 NFS or v2? Switching to v2 has made things MUCH more stable for me, however, I still loose stability with ZIL enabled (even if prefetch is disabled)(and ZIL disabled is NOT desirable as I know the potential client side corruption with that, but so far I haven't run into that). I currently have ZIL and prefetch disabled. I currently limit ARC to 2GB as well and set kmem to 4GB (I currently am using FreeBSD 8) I am up to about 1.5 weeks without a panic now. The system does a constant 80-120Mb/s in read and 30Mb/s write/s during the day and has 9 NFS clients. Weldon