uname -a : Linux XXXXX 3.6.0-030600-generic #201209302035 SMP Mon Oct 1 00:36:01 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
fixes the problem.
uname -a : generic #201209302035 SMP Mon Oct 1 00:36:01 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
Linux XXXXX 3.6.0-030600-
fixes the problem.