UDP errors during NFS copy

Delbert Matlock (matlockd@teksouth.com)
Fri, 23 Feb 1996 20:10:34 -0600

Ok, Linus, you wanted NFS testing. You got it. :) Unfortunately, I don't
know if this problem is being caused by NFS or the Ethernet card I'm using.
When copying files over an NFS link from machine A to machine B, the
messages below are generated on machine B:

Feb 23 19:54:12 service.teksouth.com kernel: UDP: bad checksum. From 26FA3422:2049 to 26FA3427:640 ulen 4204
Feb 23 19:54:43 service.teksouth.com last message repeated 19 times
Feb 23 19:54:46 service.teksouth.com kernel: NFS server andrew not responding, still trying.
Feb 23 19:54:46 service.teksouth.com kernel: NFS server andrew OK.
Feb 23 19:54:46 service.teksouth.com kernel: UDP: bad checksum. From 26FA3422:2049 to 26FA3427:640 ulen 4204
Feb 23 19:55:19 service.teksouth.com last message repeated 16 times

When copying files from machine B to machine A, no errors occur.

I've observed this problem on 1.3.6[678]. Machine A is using an SMC Ultra
ethernet adapter. Machine B is using an Artisoft NE-2000 clone board.
Needless to say, I'm suspicious of the Artisoft board, but it hasn't
exibited any other problems including doing the full install over NFS.

--dkm