Matthew Dillon wrote:
quoted text
>     * Full historical access appears to be working but needs testing.
>       Note that a sync is still needed to flush dirty cached data prior
>       to acquiring a timestamp for the 'snapshot' to be set in stone.
>       (dirty data cached in-memory has no historical tags and must be
>       committed to physical disk before it can be accessed historically).

Wouldn't making timestamp queries (at least from userland) enforce a 
sync on the volume in question be useful here?
-- 
         Thomas E. Spanjaard
         tgen@netphreax.net