Subject: Re: Problem with Acorn SCSI card running 1.4R
To: Mike Pumford <mpumford@mpc-data.co.uk>
From: Richard Earnshaw <rearnsha@arm.com>
List: port-arm32
Date: 04/13/2000 13:58:36
What was the last working kernel that you used with the card?

I have an updated driver for this card that uses the on-board memory for 
DMA (giving significantly better performance); but I haven't been keeping 
up-to-date with -current recently (My last kernel was built before Xmas).

I believe there is also a small patch that you need to make to make the 
existing driver work too (it's due to the way that the devices attached to 
the SCSI bus are now probed in interrupt mode, IIRC).  I've got a patch, 
but it's at home; I'll try and remember to dig it out.

R.

> 
> I reattached my Acorn SCSI card to my RiscPC last night to be 
> confronted with the following problem. The card is probed correctly and 
> it correctly identifies the devices attached. Unfortunately the kernel 
> stops at this point and refuses to continue booting. The last time I 
> booted my machine with this card in it the SCSI probe was done as soon 
> as the card was attached and I notice that it is now defered until the end 
> of the boot sequence. 
> 
> Is there some modification in the SCSI driver required to support this
> change or should the existing driver continue to work unaltered?
> 
> As kernel can be interrupted at this point it seems like it is waiting 
> for some internal event before the kernel continues booting.
> 
> Any suggestions?
> 
> Mike
> 
> 
>