Date: Wed, 22 Jan 1997 16:03:17 -0800 (PST) From: Doug White <dwhite@gdi.uoregon.edu> To: Dan Nelson <dnelson@emsphone.com> Cc: hackers@FreeBSD.ORG Subject: Re: Erroneous Ierrs from vx0 Message-ID: <Pine.BSI.3.94.970122155805.7369D-100000@localhost> In-Reply-To: <Mutt.19970122155123.dan@dan.emsphone.com>
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On Wed, 22 Jan 1997, Dan Nelson wrote: > In the last episode (Jan 22), Doug White said: > > Hello! > > > > I just purchased a 3com Etherlink XL PCI ethenet card and it's working > > great on 2.2-BETA, except for one thing: > > > > gdi,ttyp1,~,12>netstat -i > > Name Mtu Network Address Ipkts Ierrs Opkts OerrsColl > > vx0 1500 <Link> 00.a0.24.ba.13.f8 76188 44915 23649 00 > > vx0 1500 128.223.170/2 gdi 76188 44915 23649 00 > > > I had similar problems just last week trying to NFS mount an SCO disk > onto a FreeBSD machine, both P6/200's. The SCO box had a PCI Intel > EtherExpress Pro/100, the BSD box had a PCI 3c905 Fast Etherlink > XL/100. I would only get the first 2 frags from the 8k NFS > transactions. NFS's retries failed, since it would resend the whole 8k > packet over (and, of course, only the first 2 frags would make it to > the BSD box). A "netstat -i" on the BSD end gave me lots of ierrs, but > I saw no console messages. > > Seems the vx0 driver doesn't print error messages unless you go into > debugging mode. Do an "ifconfig vx0 debug" to enable them, and watch > all the "RX overrun"/"packet overrun"/"fifo underrun" messages spew > out. I tried that and guess what: Jan 22 15:57:09 gdi /kernel: vx0: packet overrun Jan 22 15:57:40 gdi last message repeated 474 times Jan 22 15:58:02 gdi last message repeated 274 times So much for getting a card discounted :( I bought this through my office pretty cheap. > I swapped the 3com card with an Intel EE Pro/100B (fxp driver) and my > problems disappeared. I suspect one of the DEC chipset cards would do > fine also. It's finding one that isn't the silly new chipset now....Noticed that the place I'm buying a new MB from has a Kingston 21140 card, I'll try that one. > I've noticed that when I run 3Com's DOS config program that the card > reports 5K of receive buffers and 3K of send buffers. Is this really > all there is on the card? If so, I can understand the NFS problem, but > I can't believe a 100mbit card woud have such small buffers. I'll have to poke that. I wonder how bad it is on the Win95 boxes that these normally go into. Doug White | University of Oregon Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major
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