Subject: Re: Sun3/50 SCSI DMA problem - new kernel ready
To: Brett Glass <Brett_Glass@ccgate.infoworld.com>
From: Jason Thorpe <thorpej@nas.nasa.gov>
List: port-sun3
Date: 02/16/1996 16:29:23
On Fri, 16 Feb 96 16:02:42 PST
"Brett Glass" <Brett_Glass@ccgate.infoworld.com> wrote:
> I noticed the serial problem too. In fact, I thought it was a bug in the
> SCSI stuff at first.
>
> What might be happening? Could DMA be causing additional interrupt latency?
> Or could it be that the interrupt service code is somehow neglecting the
> serial ports?
Worth noting, the sun3 zs driver is a little different in -current than
in 1.1.
--------------------------------------------------------------------------
Jason R. Thorpe thorpej@nas.nasa.gov
NASA Ames Research Center Home: 408.866.1912
NAS: M/S 258-6 Work: 415.604.0935
Moffett Field, CA 94035 Pager: 415.428.6939