I''m trying to get Xen to work in a using GFS on a SAN and FC5, but am not having much luck. It looks like GFS can''t get a lock on the xvd file, for some reason, and I can''t figure it out. I am able to read and write to GFS in any other way, from all the nodes, without problem. Can''t install directly to the GFS volume, and if I install on a local drive, copy to GFS volume, and load, I end up with a read only file system. Log below. Any assistance would be greatly appreciated. Apr 14 10:47:36 blade1 kernel: GFS: fsid=alpha:gfs1.1: time = 1145036856 Apr 14 10:55:42 blade1 kernel: GFS: fsid=alpha:gfs1.1: warning: assertion "gfs_glock_is_locked_by_me(ip->i_gl)" failed Apr 14 10:55:42 blade1 kernel: GFS: fsid=alpha:gfs1.1: function = gfs_prepare_write Apr 14 10:55:42 blade1 kernel: GFS: fsid=alpha:gfs1.1: file = /usr/ src/build/729060-x86_64/BUILD/xen0/src/gfs/ops_address.c, line = 329