Comment 2 for bug 859259

I'm also affected by this. I upgraded from 11.04 to 11.10 today, and now my cifs mounts ignore the uid and gid the same as the OP.

An example of an fstab entry that I used with success before the upgrade and didn't work afterwards:

//fs1/Temp /media/temp cifs noauto,rw,user,user=mydomain/rwh,uid=rwh,gid=rwh 0 0

I get the same result if I mount shares manually using the mount.cifs command. e.g.:

mount.cifs //fs1/Temp /media/temp -o user=mydomain/rwh,uid=rwh,gid=rwh

ls -ld temp
drwxrws--x 14 root root 0 2011-08-05 10:00 temp

The same thing happens if I use numeric uid/gid.