2.1.91 SMP and aic7xxx

[Robert G. Brown]

On Thu, 2 Apr 1998, Attila Karpati wrote:

> Hello!
> 
> I don't know this is an aic7xxx or SMP problem.
> The kernel version 2.1.91 compiled with SMP support with the supplied aic 
> driver boots and works fine on a one-processor machine but stops while 
> scanning the SCSI bus on a dual PPRO machine.
> 
> On the dual system the BIOS assigns interrupt 11 to the card. After 
> initializing the IO-APIC the card has interrupt 17. There are no further 
> kernel messages after 'scsi0: Scanning channel A for devices.'.
> 
> The dual machine has an onboard 7880 controller, the single processor machine 
> has an Adaptec 9440UW card with a 7881 controller.

I had exactly the same problem (as have several other folks).  Try
rearranging the cards on your PCI bus.  I know it shouldn't matter, but
I think that it matters.  When I rearranged, it booted and worked
precisely as advertised where before it hung just as you describe
(11->17 on an onboard aic7881U on the P6DLS mobo).  No other change.

   rgb

Robert G. Brown	                       http://www.phy.duke.edu/~rgb/
Duke University Dept. of Physics, Box 90305
Durham, N.C. 27708-0305
Phone: 1-919-660-2567  Fax: 919-660-2525     email:rgb at phy.duke.edu




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