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Date: Mon, 5 Jul 2004 20:03:37 -0700 (PDT)
From: peter lageotakes <plageotakes@yahoo.com>
To: Warren Block <wblock@wonkity.com>,
	Rickard "Borgmäster" <doktorn@sub.nu>
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cc: freebsd-questions@freebsd.org
Subject: Re: Hard drive problem... S-ATA/ATA and DMA error messages
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--- Warren Block <wblock@wonkity.com> wrote:
> On Tue, 6 Jul 2004, Rickard [ISO-8859-1] Borgmäster
> wrote:
> 
> > atapci1: <VIA 8237 ATA133 controller> port
> 0xfc00-0xfc0f at device 15.1 on
> > pci0
> > ata0: at 0x1f0 irq 14 on atapci1
> > ata1: at 0x170 irq 15 on atapci1
> > [...]
> > ad0: 156334MB <Maxtor 6Y160P0> [317632/16/63] at
> ata0-master UDMA133
> > ad4: DMA limited to UDMA33, non-ATA66 cable or
> device
> > ad4: 152627MB <ST3160023AS> [310101/16/63] at
> ata2-master UDMA33
> >
> > How come FreeBSD kernel thinks my S-ATA disk is
> only capable of UDMA/33?
> 
> FreeBSD 4.x doesn't have specific support for the
> VIA 8237, and so 
> doesn't properly realize that it should be able to
> do the faster DMA 
> modes.
> 
> > Next thing is that I today tried to move ~70GB of
> data from ad0
> > (ATA/UDMA133) to ad4 (S-ATA) disk. During the cp
> process I got these
> > messages:
> > Jul  5 15:13:18 <kern.crit> studsboll /kernel:
> ad0s1e: hard error reading
> > fsbn 390440063 of 195220000-195220255 (ad0s1 bn
> 390440063; cn 24303 tn 196
> > sn 20) trying PIO mode
> > Jul  5 15:13:18 <kern.crit> studsboll /kernel:
> ad0: DMA problem fallback
> > to PIO mode
> 
> My MSI motherboard with the same VIA 8237 does the
> same thing.
> 
> -CURRENT (5.x) does have support for SATA, and may
> (probably does) 
> work with the 8237.  (I haven't tried it on this
> motherboard.)
> 
> -Warren Block * Rapid City, South Dakota USA>
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> 
Should this be issued as a PR?  According to the
hardware notes for 4.10:
http://www.freebsd.org/releases/4.10R/hardware-i386.html
"VIA 8233, 8235 ATA133, 8237 SATA150".

Pete

=====
ESCape with VI. Cheese A La mode.


		
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