Never-ending dump

[Ben Elliston]

I've been running an `amdump' for about 16 hours now -- the following dump
(a level 0, as it happens) keeps happening over and over again.  When I
reach 100%, it starts again!

dublin:sda4                              0 1878319k dumping  1679872k (89.43%) 
(8:08:27)

This file system is too large for the holding disk, if that makes any
difference.  Any idea what's going on here?  I've just had to abort the
backup.

Thanks,

Ben