It is good news that 4.4.40 does not exhibit this bug. That might indicate the fix for the bug has already made it to upstream stable.
The current Ubuntu kernel in -proposed has up to the 4.4.35 updates. Can you give that kernel a test to see if the fix was applied to that version? It can be downloaded from:
It is good news that 4.4.40 does not exhibit this bug. That might indicate the fix for the bug has already made it to upstream stable.
The current Ubuntu kernel in -proposed has up to the 4.4.35 updates. Can you give that kernel a test to see if the fix was applied to that version? It can be downloaded from:
http:// kernel. ubuntu. com/~kernel- ppa/mainline/ v4.4.35/