From: qdot@SAFe-mail.net
To: axboe@suse.de
Cc: linux-ide@vger.kernel.org
Subject: Re: Problem: DMA on PIIX4 controller for LiteON 851S DVDRW Drive
Date: Mon, 14 Jun 2004 12:13:46 -0400 [thread overview]
Message-ID: <N1-QP6XU55g@SAFe-mail.net> (raw)
From: Jens Axboe <axboe@suse.de>
> On Mon, Jun 14 2004, qdot@SAFe-mail.net wrote:
> > Hi
> >
> > Sorry to bother you with such a question but I got into some sort of trouble with DMA settings on PIIX4 controller for LiteON 851S DVDRW Drive on Linux 2.6.6 (vanilla).
> >
> > When dma has been setup (either using bios, boot parameters or hdparm) on first access to drive system ends up with:
> >
> > Jun 14 11:50:10 valkyrie hdc: cdrom_decode_status: status=0x51 { DriveReady SeekCom
> > plete Error }
> > Jun 14 11:50:10 valkyrie hdc: cdrom_decode_status: error=0x40LastFailedSense 0x04
>
> Looks like a hardware error (the sense indicates so), it might just not
> like dma.
Rather not hardware error. Works slowly, but reliably without DMA. Works with DMA on other controllers well. Works on usb-storage enclosure.
Tomasz Mloduchowski
next reply other threads:[~2004-06-14 16:13 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-14 16:13 qdot [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-06-14 15:17 Problem: DMA on PIIX4 controller for LiteON 851S DVDRW Drive qdot
2004-06-14 15:21 ` Jens Axboe
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