Subject: Re: Ultra 5 w/hme + current spews messages
To: Jarle Greipsland <jarle@uninett.no>
From: Jason Wright <jason@thought.net>
List: port-sparc64
Date: 10/10/2001 11:09:11
On Wed, Oct 10, 2001 at 02:02:59PM +0200, Jarle Greipsland wrote:
> I now suspect that
> there is some sort of hidden interdependency between the
> console/serial port code and the network (hme) driver.  Any
> ideas?

Most likely this is because the number of rx descriptors in use is
pretty small (32, I believe) and the console is the prom console.
Calling the prom console requires everything else be stopped while it
does its work, so rx interrupts aren't processed quickly enough.

For what it's worth, RCVFIFO interrupts aren't interesting and NORXD
isn't worth spewing to the console (printing stuff like that only
makes the situation worse, when ifp->if_ierrors++ would do the trick).

--Jason L. Wright