apt not getting any updates to unstable for several days

[Micha Feigin <michf@post.tau.ac.il>]

For the last several days my aptitude and apt-get are not seeing any
updates to my system in unstable.
I usually get at list a couple of updates a day and this started after
a lockup in the middle of an update, which led me to think that there
may be a problem. Also the packages files are being download on each
update.
http://marillat.free.fr unstable/main Packages has also failed to
update for a few days (I logged in and there was a problem with the
directories)