Subject: Re: gem driver now [kind of] works on G4 macs
To: Dave Huang <>
From: Matt Thomas <>
List: current-users
Date: 05/11/2002 13:52:28
At 01:14 PM 5/11/2002, Dave Huang wrote:
>On Fri, 10 May 2002, Matt Thomas wrote:
> > At this time, I think macppc should switch to gem and move gm into the
> > Attic.
>It seems to be working well for me on my PowerMac G4 Gigabit ethernet
>(connected to a 100BaseTX switch), except I occasionally got these
>messages while running with /usr/src on an NFS filesystem:
>May 11 06:00:53 greyfox /netbsd: gem0: MAC rx fault, status 5
>What's status 5 mean?

My best guess is the GEM_RX_FRAME_COUNT register (which is 16bit)
is overflowing or flipping the MSB.  I just submitted a fix which
should suppress these interrupts/messages.

Matt Thomas               Internet:
3am Software Foundry      WWW URL:
Cupertino, CA             Disclaimer: I avow all knowledge of this message