changing squid cache dir

[Wart <wart kobold org>]

I reconfigured my squid to use a cache directory on a filesystem with 
more space (/space/squid/cache, and relabeled /space/squid and all of 
its subdirectories with system_u:object_r:squid_cache_t.

Now I'm getting AVC denied messages[1] because it seems that squid wants 
to read from /.

setroubleshoot says that I can run "setsebool -P read_default_t=1" to 
remove this denial, but I'd rather find out why squid wants to read from 
/ and relabel files appropriately.  Any ideas?

--Wart

[1] avc: denied { search } for comm='"squid"' dev='sdb5' egid='0' 
euid='0' exe='"/usr/sbin/squid"' exit='-13' fsgid='0' fsuid='0' gid='0' 
items='0' name='"/"' pid='3114' scontext=system_u:system_r:squid_t:s0 
sgid='0' subj='system_u:system_r:squid_t:s0' suid='0' tclass='dir' 
tcontext=system_u:object_r:default_t:s0 tty='(none)' uid='0'