Subject: Re: UDMA problems with 1.4
To: Michael C. Richardson <mcr@sandelman.ottawa.on.ca>
From: Todd Whitesel <toddpw@best.com>
List: port-i386
Date: 01/24/2000 23:02:58
> pciide0:0:0: lost interrupt
>         type: ata
>         c_bcount: 3072
>         c_skip: 0
> pciide0:0:0: Bus-Master DMA error: missing interrupt, status=0x60
> wd0: transfer error, downgrading to DMA mode 2

I get errors like this on my ALi SuperIO machines, which use
the same controller (M1543) and CD-ROM (Mitsumi 16x ATAPI).

On i386 it recovers like the above.

On arm32 (CATS ATX motherboard) it errno's the syscall, so I can't
actually use the CD-ROM drive on that machine.

I must apologize to Manuel here, as I've had these problems with 1.4.1 up
through 19991223-current (after which those machines went to 1.4.2_ALPHA)
and I've been too lazy to file a proper PR on this.

Todd Whitesel
toddpw @ best.com