tar segmentation fault

[Ben Paley]

Hello,

I want to backup certain parts of my system regularly, so I made a directory 
which reflects the filesystem:

backup/
	etc/ -> link to /etc
	usr/
		home/
			me/
				somefile -> link to some specific file in my home directory
				public_html/
					various_links_to/ ->
					directories_which/ ->
					really_exist_in_my/ ->
					public_html/ ->

Basically it's a collection of symlinks to stuff I want backed up. Then I run

tar -cLvy -f /usr/home/me/backup/backup.tar.bz2 /usr/home/me/backup/source/

When source/usr/home/me/public_html is empty then it runs fine. But when I put 
any links in, tar dies with a segmentation fault.

Has anyone got any ideas why?

Thanks,
Ben