I've tested and confirmed that commit c191a836a908d1dd6b40c503741f91b914de3348 is indeed the root cause of the issue. For those interested, a test kernel with the commit reverted can be found at the following:
http://people.canonical.com/~ogasawara/lp731878/amd64/
I've tested and confirmed that commit c191a836a908d1d d6b40c503741f91 b914de3348 is indeed the root cause of the issue. For those interested, a test kernel with the commit reverted can be found at the following:
http:// people. canonical. com/~ogasawara/ lp731878/ amd64/