Head scratching time for the technical gurus....
Headline: NFS client locks when second NIC inserted but not even module
loaded.
I've got a test rig setup with 2 via EPIA V 5000 motherboards. These come
with an on-board nic and a PCI slot in which I'm inserting the second NIC.
The second nic has a crossover going to the other system which is exactly
the same, they're on 10.0.0.1 & 10.0.0.2. All other hosts on 192.168.1.x
LAN. I test with the following:-
# mount -t nfs -o ro lightspeed:/export/mirror /mnt/mirror
{fine always}
# ls /mnt/mirror
{fine first few times}
# ls /mnt/mirror/9/i386/ (basically a lot of files)
{NFS times out in some situations - everything but NFS works fine}
Combo tried Result
no card inserted works fine
2nd nic inserted, up, pings, main MTU lowered NFS hang
2nd nic inserted, up, pings, nfs rsize lowered NFS hang
2nd nic inserted, up, pings NFS hang
2nd nic inserted, module not loaded NFS hang
different type of 2nd nic inserted, module not loaded NFS hang
USB card inserted instead works fine
I can't find anything obvious in the BIOS settings. Happened with stock
RedHat9 kernel so I upgraded to kernel-2.4.20-28.9 and nfs-utils-1.0.1-3.9
with no difference. In each case where a card was inserted, the card works
fine too. Perhaps I'll try NFS through the 2nd NIC. I should point out
that whilst NFS is stuck, I can copy the directory off the same server
using ssh or rsync with ssh just fine. I get similar issues whilst PXE
booting redhat-rescue, gets up to the point of NFS.
If it's a hardware problem why does it only stuff up NFS? I get exactly
the same behaviour on either of the two machines.
Anyway... although it's annoying it's not critical to what I'm trying to
do. I am concerned that it might be a hardware issue and stuff me up later
on in this project.
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---<GRiP>---
Grant Parnell - senior consultant
EverythingLinux services - the consultant's backup & tech support.
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