it's not down (see below).
mikro% 9fs sources
post...
mikro% ls -l /n/sources
d-rwxrwxr-x M 76 9grid 9grid 0 Oct 20 2005 /n/sources/9grid
--rw-rw-r-- M 76 bootes sys 0 Jun 23 19:25 /n/sources/_sources
d-rwxrwxr-x M 76 adm sys 0 Aug 16 2011 /n/sources/adm
d-rwxrwxr-x M 76 sys sys 0 Mar 1 2013 /n/sources/contrib
d-rwxrwxr-x M 76 bootes sys 0 Sep 10 2009 /n/sources/dist
--rw-rw---- M 76 glenda adm 352571 Jul 31 2011 /n/sources/du
d-rwxrwxr-x M 76 sys sys 0 Oct 8 00:02 /n/sources/extra
d-rwxrwx--- M 76 fastos fastos 0 Jan 17 2010 /n/sources/fastos
--rw-rw-r-- M 76 sys sys 9107071 Oct 8 22:00 /n/sources/lsr
d-rwxrwxr-x M 76 geoff nix 0 Jul 16 2012 /n/sources/nix
d-rwxrwxrwx M 76 glenda sys 0 Oct 7 14:54 /n/sources/patch
d-rwxrwxr-x M 76 sys sys 0 Sep 24 2012 /n/sources/plan9
d-rwxrwxr-x M 76 sys sys 0 Feb 3 2010 /n/sources/wiki
d-rwxrwxr-x M 76 xen xen 0 Jul 13 2006 /n/sources/xen
mikro%