"svn update" skips repos with changes

I've got all my working copies in the same directory, and symlinks to
these in my home directory (some files removed for readability):
$ ls -l ~
lrwxrwxrwx 1 user user 25 2009-09-14 14:12 contacts ->
/media/home/user/contacts
lrwxrwxrwx 1 user user 25 2009-09-14 14:12 graphics ->
/media/home/user/graphics
lrwxrwxrwx 1 user user 25 2009-09-14 14:12 personal ->
/media/home/user/personal
lrwxrwxrwx 1 user user 25 2009-10-05 10:31 settings ->
/media/home/user/settings

After upgrading to Ubuntu 9.10, svn update in ~ skips some of these
consistently:
$ svn update ~/*
Skipped '/home/user/contacts'
...
Skipped '/home/user/personal'

Whenever it skips a symlink to a repository it takes a long time
(seems to depend on the size of the repo) before the "Skipped ..."
line shows up. Also, the symlinks point to valid repos:
$ cd ~/contacts
$ svn up
...
Updated to revision 277.

After going to each directory and running update, svn update works
again. In other words, nothing is ever updated from the server.

Extra info:
$ svn --version
svn, version 1.6.5 (r38866)

-- 
Victor Engmark
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