Thread (7 messages) 7 messages, 5 authors, 2000-12-29

Re: Neighbour Table Overflow on NFS Server

From: Navin Boppuri <hidden>
Date: 2000-12-29 12:33:43

Hello,

I seem to have solved my problem. I was working on some driver and while I
was setting up the interrupt stuff, I set up a wrong Interrupt Level, which,
I guess, was being used by the ethernet driver . This messed up the ethernet
driver and so the problems. I apologize to everyone for this. I appreciate
all the answers. I am totally new at writing drivers and hence, the hiccups.

Sincerely,
Navin Boppuri


Hello again,

I forgot to mention something. I sniffed the ethernet packets on the NFS
Server machine. I see that a request comes in from my custom board to the
NFS to the correct IP of the server. The HW Address of the board shows up
correctly, but the HW Address of the Server in the request shows up an 0.

ARP:
Request from:
211.111.21.41 -->  08:09:87:l0:73:16      // ethernet info of the custom
board
211.111.21.43 -->  00:00:00:00:00:00     // ethernet info of the nfs
server
Does this look like some ARP problem? I am not sure about that since my
TFTP
request for the zImage works just fine and the arp tables in the server
show
up the board info correctly.

Any ideas?

----- Original Message -----
From: "Chris Hallinan" <redacted>
To: <redacted>
Cc: <redacted>
Sent: Friday, December 29, 2000 12:46 PM
Subject: RE: Neighbour Table Overflow on NFS Server

quoted
Can't say I know exactly what it means (internally to the
kernel/driver) but we ALWAYS get this message when the
Ethernet cable is disconnected.  I would suspect physical
connections: check your cable,hub, etc.  In our experience,
it seems to indicate that the Ethernet driver is incapable
of completing transmit operations.

-Chris Hallinan

-----Original Message-----
From: owner-linuxppc-embedded@lists.linuxppc.org
[mailto:owner-linuxppc-embedded@lists.linuxppc.org]On Behalf
Of Mark S. Mathews
Sent: Friday, December 29, 2000 1:03 AM
To: Cal Erickson
Cc: Navin Boppuri; linuxppc-embedded@lists.linuxppc.org
Subject: Re: Neighbour Table Overflow on NFS Server


I may be completely off-base here, but I seem to recall
getting some of
these a long time ago.  At the time I think it was cause by
a lack of a
loopback device and routes.

-Mark

On Thu, 28 Dec 2000, Cal Erickson wrote:
quoted
Navin,
 The message "neighbour table overflow" is the result of
some
quoted
changes to the IP stack software in Linux version 2.2.x +.
This
quoted
simply means that you are unable to connect to your NFS
server.  It may be related to the driver, but it may also
be
quoted
related to other issues, such as NFS server not running or
incorrectly installed, no physical connectivity to NFS
server,
quoted
etc.  Check the configuration of your NFS server and IP
network before diving into the driver.

Cal Erickson

Navin Boppuri wrote:
quoted
Hello,

I have been debugging my custom 823 board. I have an NFS
Server setup on
quoted
quoted
which my kernel on the board mounts. I have using this
server without any
quoted
quoted
problems for more than a month. All of the sudden, my
NFS Server complains
quoted
quoted
of "Neighbour Table overflow" . The NFS Server was not
modified, nor
quoted
quoted
restarted. The error also says that the Server returned
error -5.  Can
quoted
quoted
someone suggest any remedy for this problem?

Sincerely,
Navin Boppuri
--
============================================================
===============
quoted
Cal Erickson                 MontaVista Software Inc.
Linux Consultant             1237 E. Arques Ave.
Phone (408) 328-0304         Sunnyvale CA 94085
Fax   (408) 328-9204         web http://www.mvista.com
============================================================
===============
quoted

Mark S. Mathews

AbsoluteValue Systems      Web:    http://www.linux-wlan.com
P.O. Box 941149            e-mail: mark@linux-wlan.com
Maitland, FL 32794-1149    Phone:  407.644.8582
USA                        Fax:    407.539.1294


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
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