Hi, I am using Gentoo Linux as an NFS server while doing development on an Blackfin embedded system. The Blackfin is running uClinux and the development host is Gentoo testing version (~amd64). The NFS server version is 1.2.7.
Here is the problem that I am observing: I start from a known state, restarting the NFS server on Gentoo and power cycling the Blackfin. Once the Blackfin system has booted, I mount an folder on the Blackfin. This succeeds without any problem. Then I power cycle the Blackfin again and after it is up, I try to mount that same folder again. But this time, the mount command hangs for a minute or so and eventually fails with a timeout error. Here is the mount command: mount -o nolock,tcp 10.2.2.254:/romfs_2011R1 /mnt When I look into the NFS server's system log, I can see that the mount was authenticated: Jun 30 13:54:53 bonsai rpc.mountd[1597]: authenticated mount request from 10.2.2.220:911 for /home/ta/uclinux_2011R1/db1/uclinux-dist/romfs (/home/ta/uclinux_2011R1) I have captured what is happening using wireshark and what I am seeing is that the mount request succeeds, but the client initiates another TCP connection (SYN) and this SYN is never responded to by the server. I know that a sm-notify program is used on both NFS clients/servers to notify reboots, but this embedded system does not have the sm-notify capability. And I would rather not try to port it to uClinux. So, my question is, can I somehow configure the NFS server to allow mounting the same directory repeatedly whenever the NFS client reboots? -- Timur
