cannot use DFS links on a cifs mount

[wdesmet]

I'm trying to use a cifs shared directory which uses a global namespace with several links to different servers.

When I mount the separate shared directories directly, i.e. //server/<globalshare>/<localshare>/ everything works, but mounting the global share only allows me to see the global links.

i.e. when I use mount.cifs:
mount -t cifs //server/<globalshare> test/ -o user=...
I get success. Then try to ls (a non-cached directory):
$ ls -l test/
ls: cannot read symbolic link test/home: Object is remote
(followed by a listing that shows the link)

Trying to ls home/:
$ ls test/home
ls: cannot open directory test/home: Not a directory

Workaround: mounting home/ directly does work, but it kind of defeats the point of the global namespace.

While trying to browse through I also sometimes get the following message in syslog:
cifs.upcall: Usage: cifs.upcall [-t] [-v] key_serial

But this is perhaps just cifs.upcall complaining about the key-request.conf still containing a -c parameter, which is now deprecated, according to the manpage.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: cifs-utils 2:4.5-2
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
Uname: Linux 2.6.38-10-generic x86_64
Architecture: amd64
Date: Tue Jul 12 11:56:44 2011
SourcePackage: cifs-utils
UpgradeStatus: Upgraded to natty on 2011-05-05 (68 days ago)