Are you only seeing this bug on the upstream 3.6 kernel and not in the Ubuntu kernel? If so, it would be best to open a bug upstream[0]. That will allow the upstream Developers to examine the issue, and may provide a quicker resolution to the bug.
[0] https://wiki.ubuntu.com/Bugs/Upstream/kernel
Are you only seeing this bug on the upstream 3.6 kernel and not in the Ubuntu kernel? If so, it would be best to open a bug upstream[0]. That will allow the upstream Developers to examine the issue, and may provide a quicker resolution to the bug.
[0] https:/ /wiki.ubuntu. com/Bugs/ Upstream/ kernel