On Fri, Jan 05, 2001 at 06:54:33PM +0900, Bang Jun-Young wrote:
> With Quantum Fireball, it failed with infamous "lost interrupt" error and
> downgraded UDMA mode from 2 to 1 during kernel pciide initialization. With
> an Maxtor drive, it got even worse; it never displayed error messages, 
> and whenever I tried to compile something I got number of "unknown 
> opcode(?)" errors.

The data read from disk were bad ?

> 
> I have more question with my A7V: why does pciide driver set UDMA mode to
> 2 for my drive which is capable of UDMA mode 4? Connected to Promise 

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.

But your controller seems to be something different again (rev 0x10 instead
of 0x6), I'll have to look at this.

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