cp/rsync problem

[Jack Mendez]

	doing a very large copy under linux 29gb or so, and when i get to about 
3gb, it complains that the device has no space left.
what i have is a hard disk mounted on /mnt/hd2
this is a 40gb freshly format ext2 partition
on mnt/source
are the 29gb of files i would like to transfer from /mnt/source to /mnt/hd2
however after about 3gb of transfers cp reports that there is no space left 
on device, if i look at /dev/hda1 it is in fact full
why would this occur when i am transferring files from two completely 
different sources
/mnt/source is actually an smbfs mount
another thing to note rsync also dies at about this point as well

thanks