From owner-freebsd-stable@FreeBSD.ORG Tue Apr 28 12:00:48 2009 Return-Path: Delivered-To: freebsd-stable@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2422C106567A for ; Tue, 28 Apr 2009 12:00:48 +0000 (UTC) (envelope-from gavin@FreeBSD.org) Received: from mail-gw0.york.ac.uk (mail-gw0.york.ac.uk [144.32.128.245]) by mx1.freebsd.org (Postfix) with ESMTP id AE02F8FC15 for ; Tue, 28 Apr 2009 12:00:47 +0000 (UTC) (envelope-from gavin@FreeBSD.org) Received: from mail-gw7.york.ac.uk (mail-gw7.york.ac.uk [144.32.129.30]) by mail-gw0.york.ac.uk (8.13.6/8.13.6) with ESMTP id n3SC0aLZ011869; Tue, 28 Apr 2009 13:00:36 +0100 (BST) Received: from buffy-128.york.ac.uk ([144.32.128.160] helo=buffy.york.ac.uk) by mail-gw7.york.ac.uk with esmtps (TLSv1:AES256-SHA:256) (Exim 4.68) (envelope-from ) id 1LylzI-0002f3-AH; Tue, 28 Apr 2009 13:00:36 +0100 Received: from buffy.york.ac.uk (localhost [127.0.0.1]) by buffy.york.ac.uk (8.14.3/8.14.3) with ESMTP id n3SC0a8R087021; Tue, 28 Apr 2009 13:00:36 +0100 (BST) (envelope-from gavin@FreeBSD.org) Received: (from ga9@localhost) by buffy.york.ac.uk (8.14.3/8.14.3/Submit) id n3SC0ZDF087020; Tue, 28 Apr 2009 13:00:35 +0100 (BST) (envelope-from gavin@FreeBSD.org) X-Authentication-Warning: buffy.york.ac.uk: ga9 set sender to gavin@FreeBSD.org using -f From: Gavin Atkinson To: Martin Schmidt In-Reply-To: References: Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Tue, 28 Apr 2009 13:00:35 +0100 Message-Id: <1240920035.85945.7.camel@buffy.york.ac.uk> Mime-Version: 1.0 X-Mailer: Evolution 2.22.2 FreeBSD GNOME Team Port X-York-MailScanner: Found to be clean X-York-MailScanner-From: gavin@freebsd.org Cc: freebsd-stable@FreeBSD.org Subject: RE: 7.1-STABLE Sun Mar 29 01:06:46 ADT 2009 Locks up ... X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Apr 2009 12:00:48 -0000 On Fri, 2009-04-24 at 20:39 +0200, Martin Schmidt wrote: > Hi Marc and List, > > i had similar issues with FreeBSD 7.2-PRERELEASE. Server (zfs,nfs) > seems to hang in intervals of about 8 hours. > kernel is still there but no connections can be made to nfs/ssh and > login on local console doesn't seem to > work due to incredible slowness. breaking to the debugger takes a > moment but works. > (compiling kernel with WITNESS didnt help) > > the server had been solid before with 7 stable kernel from around 19 > October 2008. > > I now added these lines to /boot/loader.conf > > hw.pci.enable_msi=0 > hw.pci.enable_msix=0 > > to disable Message Signaled Interrupts. Which are used by the 3ware > twa driver and igb network driver on our server. If you are willing to test further on your server, it may be helpful if you could determine which of those two lines in loader.conf fixes the problem for you. It would also be useful to provide a dmesg from the machine when both msi and msix are enabled. FWIW, looking at the "vmstat -i" output it appears that only the igb driver that are using MSI/MSIX, unless you have a reason to suspect otherwise? Gavin