Comment 5 for bug 1751268

We can perform a kernel bisect to identify the commit that introduced this regression. We first need to identify the last kernel that did not have this bug and the first that did.

Can you next test the following kernels:

v4.14-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14-rc1/
v4.14 Final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14/
v4.15-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15-rc1/

You don't have to test all of them. Just until you hit the first version that exhibits the bug.