From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261373AbVGQUTw (ORCPT ); Sun, 17 Jul 2005 16:19:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261386AbVGQUTw (ORCPT ); Sun, 17 Jul 2005 16:19:52 -0400 Received: from grendel.digitalservice.pl ([217.67.200.140]:44003 "HELO mail.digitalservice.pl") by vger.kernel.org with SMTP id S261373AbVGQUTv (ORCPT ); Sun, 17 Jul 2005 16:19:51 -0400 From: "Rafael J. Wysocki" To: Andrew Morton Subject: Re: 2.6.13-rc3-mm1: mount problems w/ 3ware on dual Opteron Date: Sun, 17 Jul 2005 22:20:06 +0200 User-Agent: KMail/1.8.1 Cc: linux-kernel@vger.kernel.org References: <20050715013653.36006990.akpm@osdl.org> In-Reply-To: <20050715013653.36006990.akpm@osdl.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200507172220.07299.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Friday, 15 of July 2005 10:36, Andrew Morton wrote: > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.13-rc3/2.6.13-rc3-mm1/ > > (http://www.zip.com.au/~akpm/linux/patches/stuff/2.6.13-rc3-mm1.gz until > kernel.org syncs up) Apparently, mount does not work with partitions located on a 3ware RAID (8006-2PL controller) in a dual-Opteron box (64-bit kernel). If the kernel is configured with preemption and NUMA, it cannot mount any "real" filesystems and the output of "mount" is the following: rootfs on / type ext3 (rw) /dev/root on / type ext3 (rw) proc on /proc type proc (rw,nodiratime) sysfs on /sys type sysfs (rw) tmpfs on /dev/shm type tmpfs (rw) (hand-copied from the screen). I have tried some other combinations (ie. preemption w/o NUMA, NUMA w/o preemption etc.) and it seems that it works better with CONFIG_PREEMPT_NONE set, although even it this case some filesystems are mounted read-only. The mainline kernels (ie. -rc3 and -rc3-git[1-4]) have no such problems. Greets, Rafael -- - Would you tell me, please, which way I ought to go from here? - That depends a good deal on where you want to get to. -- Lewis Carroll "Alice's Adventures in Wonderland"