====== Debugging ======
To turn on cifs debug output in dmesg do 

sudo echo 4 > /proc/fs/cifs/cifsFYI


====== Tweaks ======

===== Improving CIFS Performance =====
On older ubuntu versions (eg. Ubuntu 10.04) cifs can be slow. The situation can be improved by doing the following

  - Unmount all cifs shares
  - rmmod cifs (and check that the module is gone)
  - echo "options cifs CIFSMaxBufSize=130048" > cifs.conf
  - mount with -o direct,rsize=130048,wsize=57344