Subject: Re: 'wdc0:0:0: lost interrupt' on tibook since PMAP changes
To: Markus W Kilbinger <kilbi@rad.rwth-aachen.de>
From: Manuel Bouyer <bouyer@antioche.lip6.fr>
List: port-macppc
Date: 06/20/2001 22:18:36
On Tue, Jun 19, 2001 at 09:54:09PM +0200, Markus W Kilbinger wrote:
Content-Description: message body text
> >>>>> "Manuel" == Manuel Bouyer <bouyer@antioche.lip6.fr> writes:
> 
>     Manuel> Can you post the dmesg;
> 
> Here it is; it from yesterdays -current soucres with wdc_obio.c 1.12:
> 

OK, thanks. I can't make much sense of these values with what I know of the
chip.
How old it this machine ?
Maybe this controller support UltraDMA modes ? Do you have any way to check
this ?
With a working kernel, what speed does
dd if=/dev/rwd0d of=/dev/null bs=64k count=2000
gives ?

You can also try the small program attached, it'll give a better idea of the
IDE bus speed.
Just type:
/usr/bin/time ./tst /dev/rwd0d 2000

--
Manuel Bouyer <bouyer@antioche.eu.org>
--