MSI KT3/4 AMD motherboards and 3C905CX-TXM NIC
ajt at rri.sari.ac.uk
Fri Nov 14 12:30:01 EST 2003
I've encountered problems using multiple 3C905CX-TXM NIC's in MSI KT3/4
AMD motherboards using the Scyld 3c59x kernel driver module with a Linux
2.4.22-openmosix1 kernel under Red Hat 8.0 Linux (updated by apt-get
from the Fedora Linux rmp repository).
Installing a single NIC is detected by kudzu, and it works correctly.
Sometimes, installing a second NIC works, but sometimes it compromises
the first NIC, sometimes the second NIC works. Similarly with a third NIC...
The puzzling thing is that by selecting cards from a 'pool' of NIC's I
bought for the cluster I can eventually get three that *will* work
together. All these NIC's are brand new. The NIC's are connected to a
Cisco switch and auto-negotiate with it.
Using netdiag 'vortex-diag' I can verify that the NIC's are installed
correctly and I can reset them using 'mii-diag -R' after which they
re-negotiate with the switch and work correctly, but they do not work
again from a cold boot (power off/on and reboot) without being reset
like this manually with mii-diag.
I have an MSI KT4V-L, KT4AV-L and 23 KT3Ultra-2 motherboards - I've not
tested them exhaustively (all are brand new) but this problem appears to
be common to all of them. I wonder if anyone else has a similar problem?
[I put multiple NIC's in Gigabyte GA-7ZXE motherboards with the same
3c59x driver+kernel on my original openMosix cluster but I didn't have
problems like this!].
The present configuration of NIC's in my motherboards works correctly
from a cold boot, but not with just 'any' 3C905CX-TXM NIC's fitted:
KT4V-L (head node of 8-node 'bobcat' cluster 7 at GA-7ZXE's)
eth0 3COM 3C905CX
eth1 3COM 3C905CX
eth2 3COM 3C905CX
eth3 VIA "Rhine" on-board LAN adapter (disabled)
KT4AV-L (head node of 24-node 'topcat' cluster 23 at KT3Ultra-2)
eth0 3COM 3C905CX
eth1 3COM 3C2000-T
eth2 VIA "Rhine" on-board LAN adapter
Although I've 'solved' the problem for the two head nodes, I've got
another 23 systems to configure and I'd like to know if there is a
work-around for this problem that will let me install 'any' NIC?
Dr. A.J.Travis, | mailto:ajt at rri.sari.ac.uk
Rowett Research Institute, | http://www.rri.sari.ac.uk/~ajt
Greenburn Road, Bucksburn, | phone:+44 (0)1224 712751
Aberdeen AB21 9SB, Scotland, UK. | fax:+44 (0)1224 716687
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