From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from tyke.pjc.net (public1-leed3-6-cust141.leed.broadband.ntl.com [80.0.5.141]) by dsl2.external.hp.com (Postfix) with ESMTP id A60D0488B for ; Mon, 15 Jul 2002 08:23:57 -0600 (MDT) Received: from patrick by tyke.pjc.net with local (Exim 3.35 #1 (Debian)) id 17U6lY-0007QG-00 for ; Mon, 15 Jul 2002 15:23:56 +0100 Date: Mon, 15 Jul 2002 15:23:56 +0100 From: Patrick Caulfield To: parisc-linux@lists.parisc-linux.org Subject: Re: [parisc-linux] O_DIRECT on devices Message-ID: <20020715142356.GN808@tykepenguin.com> References: <20020711082259.GF822@tykepenguin.com> <20020715034632.E27706@parcelfarce.linux.theplanet.co.uk> <20020715074219.18CD54861@dsl2.external.hp.com> <20020715122919.F27706@parcelfarce.linux.theplanet.co.uk> <20020715135757.GM808@tykepenguin.com> <20020715151013.N27706@parcelfarce.linux.theplanet.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 In-Reply-To: <20020715151013.N27706@parcelfarce.linux.theplanet.co.uk> Sender: parisc-linux-admin@lists.parisc-linux.org Errors-To: parisc-linux-admin@lists.parisc-linux.org List-Help: List-Post: List-Subscribe: , List-Id: parisc-linux developers list List-Unsubscribe: , List-Archive: On Mon, Jul 15, 2002 at 03:10:13PM +0100, Matthew Wilcox wrote: > On Mon, Jul 15, 2002 at 02:57:57PM +0100, Patrick Caulfield wrote: > > My machine isn't SMP but could a similar bug cause the problem to occur between > > the CPU and the DMA controller of the SCSI card ? > > you're on a C110, right? that has a ccio IOC so you shouldn't have any > problems, unless there's a driver bug. and the symbios driver gets a > lot of testing ;-) yes. > what we could be seeing on your machine is incoherency between user & > kernel space. ah OK. makes sense. patrick