Embedded FreeBSD Presentation...

[John-Mark Gurney]

marty fouts wrote this message on Mon, May 15, 2006 at 14:45 -0700:
> On 5/14/06, Eduardo <nec556 at retena.com> wrote:
> 
> >Is this really possible:? Sorry for be a bit unoptimist, but in the
> >embeded space the o.s.must follow some rules that freebsd (nor linux,
> >*bsd, windows, etc..) can't:
> 
> The word "embedded" has come to include a wide range of small devices
> that are nearly as powerful as desktop systems were ten years ago.
> I've built cell phone operating systems around Linux, and currently
> have one of these http://www.embeddedarm.com/epc/ts7200-spec-h.html
> running NetBSD.

Ahhh, do you know of an ethernet issue with this board?  On certain
small packets I get:
epe0: ed_stat: 0x92000009
mbuf: 0xcb433300 len: 80, next: 0, 2<pkthdr>, 00-00-5a-99-78-c4-00-d0-69-40-04-fa-08-00-45-00-00-42-15-24-00-00-40-11-e4-00-c0-a8-00-35-c0-a8-00-01-f7-e9-00-35-00-2e-52-80-88-bc-01-00-00-01-00-00-00-00-00-00-07-64-79-6e-61-6d-31-34-08-66-75-6e-6b-74-68-61-74-03-63-6f-6d-00-00-1c-00-01
epe0: ed_stat: 0x92000009
mbuf: 0xcb432700 len: 80, next: 0, 2<pkthdr>, 00-a0-c9-31-30-5e-00-d0-69-40-04-fa-08-00-45-00-00-42-15-2f-00-00-40-11-e3-e8-c0-a8-00-35-c0-a8-00-0e-d0-1b-00-35-00-2e-7a-41-88-bc-01-00-00-01-00-00-00-00-00-00-07-64-79-6e-61-6d-31-34-08-66-75-6e-6b-74-68-61-74-03-63-6f-6d-00-00-1c-00-01

The first line is the TX status register indicating a carrier loss and
a underrun...  The second is the data packet..  it's a reverse dns query
iirc...  I'm at 100mbit and full duplex, so a collision shouldn't of
happened...

The wierd part is that this is durning boot up while running w/ a nfs
mounted root..  I can also read/write about 2meg/sec over nfs w/o any
issue, but do a simple 80 byte dns query, or try to send an icmp packet,
and I get the above...

-- 
  John-Mark Gurney				Voice: +1 415 225 5579

     "All that I will do, has been done, All that I have, has not."