Comment 6 for bug 1432405

Dave Gilbert, the next step is to fully reverse commit bisect from kernel 3.19 to 4.0-rc4 in order to identify the last bad commit, followed immediately by the first good one. Once this commit has been identified, then it may be reviewed as a candidate for backporting into your release. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection#How_do_I_reverse_bisect_the_upstream_kernel.3F ?

Thank you for your understanding.