From owner-freebsd-stable  Fri Jul 26 14:49:31 2002
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Date: Fri, 26 Jul 2002 14:49:27 -0700 (PDT)
From: Jesse Gross <jesse_gross@yahoo.com>
Subject: Re: READ_BIG problems 
To: Ian Dowse <iedowse@maths.tcd.ie>
Cc: John Baldwin <jhb@FreeBSD.org>, stable@FreeBSD.org,
	Mark Hartley <mark@work.drapple.com>,
	John Prince <johnp@lodgenet.com>, Hans Ottevanger <hansot@iae.nl>
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Bingo.

The new patch works great. It fixed the problem that I was having
completely.

I should note that I also had the previous patch applied.hw.ata.ata_dma
and hw.ata.atapi_dma were both set to their default values (1 and 0
respectively).

If I can do anything else let me know.

Jesse Gross

--- Ian Dowse <iedowse@maths.tcd.ie> wrote:
> In message <20020726134201.72747.qmail@web14107.mail.yahoo.com>,
> Jesse Gross wr
> ites:
> >No luck.
> >
> >The patch didn't seem to make any difference.
> 
> Thanks to everybody for trying. Below is another patch that
> apparently
> does help - I got Hans to try it, and he says that it seemed to work.
> 
> Does this makes a difference for anybody else?
> 
> Ian
> 
> Index: atapi-cd.c
> ===================================================================
> RCS file: /home/iedowse/CVS/src/sys/dev/ata/atapi-cd.c,v
> retrieving revision 1.48.2.16
> diff -u -r1.48.2.16 atapi-cd.c
> --- atapi-cd.c	27 Mar 2002 19:48:37 -0000	1.48.2.16
> +++ atapi-cd.c	26 Jul 2002 14:22:37 -0000
> @@ -266,7 +266,7 @@
>      dev = make_dev(&acd_cdevsw, dkmakeminor(cdp->lun, 0, 0),
>  		   UID_ROOT, GID_OPERATOR, 0644, "acd%d", cdp->lun);
>      dev->si_drv1 = cdp;
> -    dev->si_iosize_max = 252 * DEV_BSIZE;
> +    dev->si_iosize_max = 64 * DEV_BSIZE;
>      dev->si_bsize_phys = 2048; /* XXX SOS */
>      cdp->dev = dev;
>      cdp->device->flags |= ATA_D_MEDIA_CHANGED;
> 
> 
> 


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