Subject: Re: DMA and interrupt errors on DS10?
To: Brad Beck <>
From: Jarkko Teppo <>
List: port-alpha
Date: 02/15/2005 15:00:09
On Tue, Feb 15, 2005 at 04:12:18AM +0100, Brad Beck wrote:
> For the record, I get the same errors on my PWS 600au MiataGL.  I get 
> numerous 'stray irq' messages until it downgrades to PIO mode 4.  The 
> root and other system partitions are mounted from 2 SCSI disks connected 
> to the onboard controller.   1 Western Digital 80GB HDD is the primary 
> master IDE drive (no slave) and mounts /home on /dev/wd0a.   1 Toshiba 
> CD-ROM is the secondary master IDE drive (also no slave).
> I've swapped everything possible at the hardware level in 
> troubleshooting this.  It is most certainly not a hardware issue.

I had similar problems with an Alphastation 500/500 (and AS 600, AS 1000)
with hpt366 (hotrod) and a controller based on sil 0680. Instead of stray
interrupts I got lost interrupts.

... and so on. IIRC I never got any combination to work really well before
the AS500 went kaput.