I've had the problem where my machine will stall on boot if I specify 5 or more
nfs mounts in the /etc/fstab.   This seems to happen sporadicly, on otherwise
reliable systems.  

I think our mountd gets hung up if it gets hammered by a ton of mount requests
all at once..  but I cannot confirm this.  I have wedged mountd a number of
times however.

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Tim Rightnour    -  root@garbled.net
http://www.zynetwc.com/~garbled/garbled.html