Duplex issue. RH7.2 should have mii-tool installed, so check the the duplex setting on your interfaces, then verify what they are on your switches("mii-tool eth0" for example).
Problem with Linux distro's are that the developers are modifying drivers that were written by Donald Becker(he created the drivers which work flawlessly under nway negotiation, but the Linux developers modify the drivers, hadrcode duplex, break nwat negotiation and you then run into duplex issues and then get crappy nfs performance). The problem is that the cards and switch should autosense to 100baseTx-FD, but since some people in the Linux community like to modify w/o testing they dont realize that when they force duplex/speed in the driver that it then causes nway negotiation to break and you run into speed/duplex problems. So, verify your speed and duplex for all of your gear(systems and switches).
Also, send output of a ifconfig and also do a speed test with ftp to see the changes in speed when you have duplex misconfigured and when it is working correclty - you should see hell of a difference.
On Mon, 10 Mar 2003, Premanshu Jain wrote:
A few RedHat 7.2 nfs clients mounting a F840 volume via automount error out with the following. I have looked into everyting including NIS timeouts, filer sysstat, network performance and everything looks to be fine. Intrestingly all the other non linux Clients accessing the same auto-mount are working perfectly.
Mar 9 06:35:12 linuxclient kernel: nfs: server filer OK Mar 9 06:35:13 linuxclient last message repeated 52 times Mar 9 06:35:31 linuxclient kernel: nfs: server filer not responding, still trying Mar 9 06:35:41 linuxclient kernel: nfs: server filer OK Mar 9 06:35:54 linuxclient kernel: nfs: server filer not responding, still trying Mar 9 06:36:34 linuxclient kernel: nfs: server filer OK Mar 9 06:36:46 linuxclient kernel: nfs: server filer not responding, still trying Mar 9 06:38:36 linuxclient kernel: nfs: task 41929 can't get a request slot Mar 9 06:38:41 linuxclient kernel: nfs: task 43328 can't get a request slot