Comment 4 for bug 1650336

I started a kernel bisect between Ubuntu 4.4.0-54 and Ubuntu 4.4.0-57. The kernel bisect will require testing of about 4-5 test kernels.

I built the first test kernel, up to the following commit:
0cd611da7d4c01b178144bc17da8cd92cae2b1fa

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1650336

Can you test that kernel and report back if it has the bug or not? I will build the next test kernel based on your test results.

Thanks in advance