I built a kernel with commit 870ebe727a6035987b8b6fc779486a63d646ffac and another with commit 870ebe727a6035987b8b6fc779486a63d646ffac^ (which is commit 35fa18d):
http://people.canonical.com/~ddstreet/lp1787127/
commit 35fa18d kernel is the last 'good' kernel: http://people.canonical.com/~ddstreet/lp1787127/linux-image-3.13.0-155-generic_3.13.0-155.205+hf1787127v20180815b1h35fa18d_amd64.deb
commit 870ebe7 is the first 'bad' kernel: http://people.canonical.com/~ddstreet/lp1787127/linux-image-3.13.0-155-generic_3.13.0-155.205+hf1787127v20180815b2h870ebe7_amd64.deb
Verified that 35fa18d kernel does not cause the problem, and 870ebe7 kernel does cause problem.
I built a kernel with commit 870ebe727a60359 87b8b6fc779486a 63d646ffac and another with commit 870ebe727a60359 87b8b6fc779486a 63d646ffac^ (which is commit 35fa18d):
http:// people. canonical. com/~ddstreet/ lp1787127/
commit 35fa18d kernel is the last 'good' kernel: people. canonical. com/~ddstreet/ lp1787127/ linux-image- 3.13.0- 155-generic_ 3.13.0- 155.205+ hf1787127v20180 815b1h35fa18d_ amd64.deb
http://
commit 870ebe7 is the first 'bad' kernel: people. canonical. com/~ddstreet/ lp1787127/ linux-image- 3.13.0- 155-generic_ 3.13.0- 155.205+ hf1787127v20180 815b2h870ebe7_ amd64.deb
http://
Verified that 35fa18d kernel does not cause the problem, and 870ebe7 kernel does cause problem.