Subject: Re: UltraDMA performance.
To: Wolfgang Rupprecht <wolfgang@wsrcc.com>
From: Manuel Bouyer <bouyer@antioche.lip6.fr>
List: port-i386
Date: 01/05/2001 18:33:44
On Fri, Jan 05, 2001 at 06:28:37AM -0800, Wolfgang Rupprecht wrote:
> 
> bouyer@asim.lip6.fr (Manuel Bouyer) writes:
> > because pciide doesn't know (yet) that this board can do Ultra/66.
> > The problem is that via uses the same vendor/device ID and revision for
> > both the Ultra/33 and Ultra/66 controllers. We need some trick to detect
> > a Ultra/66 capable one.
> 
> I don't know if this is related, but -current running on the Asus A7v
> which has a Ultra/66 Via chip and Ultra/100 Promise chip will lock up
> solidly (no ddb) if a drive is put on each Ultra/100 Promise channels.

And with only one drive on the promise ?

> 
> One rare time it did let one break into DDB.  I saw:
> 
>         pciide 1:1 bogus intr     <this message repeats at high rate>
>         ...
>         syscall_plain (1f, 1f, 8, bfbfdc7c, bfbfda04)  syscall_plain+0x95

Does something else share interrupt with the promise ?

--
Manuel Bouyer, LIP6, Universite Paris VI.           Manuel.Bouyer@lip6.fr
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