Subject: Re: le0: overflow
To: NetBSD/sparc Discussion List <>
From: Greg A. Woods <woods@most.weird.com>
List: port-sparc
Date: 12/17/1998 20:25:56
[ On Thu, December 17, 1998 at 14:47:40 (-0700), Tim Rightnour wrote: ]
> Subject: Re: le0: overflow
>
> That would explain his lossage with NFS, however my lossage is with X, and I
> thought X used tcp.  If X is udp as well, then I suppose that answers the
> question completely.

Hmm....  X11 does normally use TCP (listening on port 6000).

Are you seeing the problem only with remote X11 clients, or only with
local ones, or both?

I'm sitting here in front of a diskless Sparc-1 with 16MB RAM, and I've
never seen an overflow error from the le driver with 1.3.1 or 1.3.2, not
even when the transceiver falls off (is knocked off by the cats).

I've even gone back to running my NFS mounts over UDP so that the system
doesn't instantly crash when an NFS server reboots too.

Mind you I've only got a bwtwo frame buffer, so this CPU doesn't have to
do much work, even for X11.  I should probably even run rc5des on it!  ;-)

It would appear that the local interface "short circuit" routes to the
loopback interface actually work in 1.3.x -- I always use a fully
qualified domain name as my DISPLAY, and yet there's lots of traffic on
my loopback interface (this machine is basically only an X Terminal):

20:15 [5] $ uptime
 8:19PM  up 20 days, 19:32, 2 users, load averages: 0.71, 0.46, 0.34
20:16 [6] $ netstat -in
Name  Mtu   Network       Address              Ipkts Ierrs    Opkts Oerrs  Coll
le0   1500  <Link>        08:00:20:08:34:2f 13232340    13 13164008   315 31813
le0   1500  204.92.254    204.92.254.3      13232340    13 13164008   315 31813
le0   1500  204.29.161.16 204.29.161.162    13241876    13 13174012   315 31830
lo0   32976 <Link>                           1630328     0  1630328     0     0
lo0   32976 127           127.0.0.1          1630328     0  1630328     0     0
[[....]]

I can't believe netstat still truncates data from columns, even with -n!!!

So many things still to fix....

-- 
							Greg A. Woods

+1 416 218-0098      VE3TCP      <gwoods@acm.org>      <robohack!woods>
Planix, Inc. <woods@planix.com>; Secrets of the Weird <woods@weird.com>