From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.33)
	id 1BxTHL-0001PC-AY
	for qemu-devel@nongnu.org; Wed, 18 Aug 2004 12:27:11 -0400
Received: from exim by lists.gnu.org with spam-scanned (Exim 4.33)
	id 1BxTHJ-0001Oh-KS
	for qemu-devel@nongnu.org; Wed, 18 Aug 2004 12:27:11 -0400
Received: from [199.232.76.173] (helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.33) id 1BxTHJ-0001Oe-Gf
	for qemu-devel@nongnu.org; Wed, 18 Aug 2004 12:27:09 -0400
Received: from [217.10.32.17] (helo=comtv.ru)
	by monty-python.gnu.org with esmtp (Exim 4.34) id 1BxTCy-0007G6-Jv
	for qemu-devel@nongnu.org; Wed, 18 Aug 2004 12:22:40 -0400
Received: from av1474.oops ([10.0.66.9] verified)
	by comtv.ru (CommuniGate Pro SMTP 4.1.8)
	with ESMTP id 36076737 for qemu-devel@nongnu.org;
	Wed, 18 Aug 2004 20:15:48 +0400
Date: Wed, 18 Aug 2004 20:23:34 +0400 (MSD)
From: malc <malc@pulsesoft.com>
Subject: Re: [Qemu-devel] Qemu floppy emulation problems - partially solved
In-Reply-To: <Pine.LNX.4.56.0408172241380.1927@hatatitla.NotaMusica.com>
Message-ID: <Pine.LNX.4.55.0408182020580.521@home.oyster.ru>
References: <Pine.LNX.4.56.0408172228020.1927@hatatitla.NotaMusica.com>
	<Pine.LNX.4.56.0408172241380.1927@hatatitla.NotaMusica.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Reply-To: qemu-devel@nongnu.org
List-Id: qemu-devel.nongnu.org
List-Unsubscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/pipermail/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: qemu-devel@nongnu.org

On Tue, 17 Aug 2004, Johannes Martin wrote:

> Hi,
>
> On Tue, 17 Aug 2004, Johannes Martin wrote:
> > Today I noticed in Win98 that Windows would only offer to format a floppy
> > at 180kB. I then booted Win98 with a floppy inserted at boot time and
> > noticed two things:
> > - rather than two 'removable disk drives' Win98 now only reports one
> >   3 1/2" floppy drive (correctly)
> > - I can actually access that floppy and other floppies I insert later
> >   (no disk change problem as with CDs)
>
> update:
> when I 'eject fda' in the Win98 guest, and try to access the floppy, I
> receive hundreds/thousands of
> 	dma: DMA transfer is not read
> and the guest pretty much stalls. 'change fda /dev/zero' gets things
> straight again.

I have changed DMA API with 7th audio patch and by extension had to modify
fdc.c to use it (Jocelyn didn't return calls when i tried to notify him).

So:
  a. I'd suggest using vanilla QEMU when working on fdc for the time being
  b.             getting 7b_aqemu (or later) that tries to keep DMA silent

-- 
mailto:malc@pulsesoft.com