Gluster users - Apr 2010 - modprobe fuse; device or resource busy

I am getting the following error when trying to load fuse.ko built
from fuse-2.7.4:

FATAL: Error inserting fuse
(/lib/modules/2.6.21.5-clustervision-181_cvos/kernel/fs/fuse/fuse.ko):
Device or resource busy

Upgrading the kernel would be difficult as the machine in question is
a network booting cluster compute node.  It has a customised kernel
without fuse built in.  Can anybody tell me what I am doing wrong?  I
have successfully used fuse-2.7.4 and earlier versions with older
kernels in the past, but have never encountered this error.

-Dan Bretherton.

-- 
Mr. D.A. Bretherton
Reading e-Science Centre
Environmental Systems Science Centre
Harry Pitt Building
3 Earley Gate
University of Reading
Reading, RG6 6AL
UK

Tel. +44 118 378 7722
Fax: +44 118 378 6413