Comment 6 for bug 1733901

@jsalisbury I have tested some vanilla kernels 4.13.x that have the same problem. See my paste here which seems like the exact same problem, which I pasted in reply to someone else's with similar/same problem https://gist.github.com/anonymous/d1cfe9ef5ebef0f96bb8d9ac451140f0

But since 4.13.11 (also tested 4.13.12, 4.13.15 and 4.13.16), it works fine. My kernels are just vanilla plus the AMD NPT patch and acs_override.

And RE the v4.14 testing suggestion... beware of a data corrupting bug in the block layer before v4.14.2, and avoid testing those, especially if you use bcache and btrfs which trivially gets corrupt (the bug: https://www.spinics.net/lists/linux-bcache/msg05290.html and the fix: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=62530ed8b1d)