Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263583AbTKFOC7 (ORCPT ); Thu, 6 Nov 2003 09:02:59 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263598AbTKFOC6 (ORCPT ); Thu, 6 Nov 2003 09:02:58 -0500 Received: from ns.suse.de ([195.135.220.2]:974 "EHLO Cantor.suse.de") by vger.kernel.org with ESMTP id S263583AbTKFOBb (ORCPT ); Thu, 6 Nov 2003 09:01:31 -0500 Date: Thu, 6 Nov 2003 14:52:11 +0100 From: Jens Axboe To: Nick Piggin Cc: "Prakash K. Cheemplavam" , linux-kernel@vger.kernel.org Subject: Re: 2.9test9-mm1 and DAO ATAPI cd-burning corrupt Message-ID: <20031106135211.GB1194@suse.de> References: <20031106130030.GC1145@suse.de> <3FAA4737.3060906@cyberone.com.au> <20031106130553.GD1145@suse.de> <3FAA4880.8090600@cyberone.com.au> <20031106131141.GE1145@suse.de> <3FAA4D48.6040709@gmx.de> <20031106133136.GA477@suse.de> <3FAA5043.8060907@gmx.de> <20031106134713.GA798@suse.de> <3FAA52A3.9030000@cyberone.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3FAA52A3.9030000@cyberone.com.au> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1656 Lines: 55 On Fri, Nov 07 2003, Nick Piggin wrote: > > > Jens Axboe wrote: > > >On Thu, Nov 06 2003, Prakash K. Cheemplavam wrote: > > > >>>>>Heh indeed, maybe because the archs I use are still at 100. Looks > >>>>>suspiciously like it's loosing timer interrupts, which would indeed > >>>>>point to PIO. > >>>>> > >>>>> > >>>>bash-2.05b# hdparm -I /dev/hdc > >>>> > >>> > >>>-i please > >>> > >>bash-2.05b# hdparm -i /dev/hdc > >> > >>/dev/hdc: > >> > >>Model=LITE-ON LTR-16102B, FwRev=OS0K, SerialNo= > >>Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic } > >>RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0 > >>BuffType=unknown, BuffSize=0kB, MaxMultSect=0 > >>(maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0 > >>IORDY=yes, tPIO={min:227,w/IORDY:120}, tDMA={min:120,rec:120} > >>PIO modes: pio0 pio1 pio2 pio3 pio4 > >>DMA modes: mdma0 mdma1 *mdma2 > >>AdvancedPM=no > >> > >>* signifies the current active mode > >> > >>The same: dma is active. > >> > > > >Indeed, so you are ysing multiword mode 2. Can you try and do a dd from > >the drive, while doing a vmstat 1? Also, does that show the jerky > >behaviour? > > > > AFAIK, Prakash cannot reproduce this bad behaviour with mm1, only mm2 (is > this right, Prakash?). So its something there (don't forget Andrew merges > the latest bk with his releases too). I'm not aware of anything in that area that could explain the change. -- Jens Axboe - 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/