I have a box with Linux-kernel-2.6.22-3 with 9p modules loaded
(lsmod). I also Inferno-4e on this box. I am vaguely aware
that one can start the styx server in inferno and mount the
exported files under Linux, so, I tried

; styxlisten -A tcp!*!5901 { export '#U*/home/user & }
in the inferno window

and tried to mount it in a Linux window as:

# mount -9p /mnt -o trans=tcp,port=5901

the mount hangs

So, what is the correct incantation?