Comment 9 for bug 1759445

It's possible that the message is related, but it would be difficult to track down without shortening the number of commits to search through between 4.4 and 4.15.

It sounds like you can't reproduce this error with Artful and 4.13 based kernels. Is that correct?

If so, it would be worth testing the 4.14 final kernel and possibly some of the 4.15 release candidates if 4.14. is good. All the kernels are available from:

http://kernel.ubuntu.com/~kernel-ppa/mainline/