I have been getting this for at least two days:
[matthew@zeut src]$ cvs -v
Concurrent Versions System (CVS) 1.11.2 (client/server)
[matthew@zeut src]$ cvs -z3 -d
:pserver:anoncvs@anoncvs.postgresql.org:/projects/cvsroot co -P pgsql
[...]
cvs server: Updating pgsql/src/backend/utils/mb/conversion_procs/ascii_and_mic
cvs server: failed to create lock directory for
`/projects/cvsroot/pgsql-server/src/backend/utils/mb/conversion_procs/ascii_and_mic'
(/projects/cvsroot/pgsql-server/src/backend/utils/mb/conversion_procs/ascii_and_mic/#cvs.lock):
Permission denied
cvs server: failed to obtain dir lock in repository
`/projects/cvsroot/pgsql-server/src/backend/utils/mb/conversion_procs/ascii_and_mic'
cvs [server aborted]: read lock failed - giving up