https://bugs.freedesktop.org/show_bug.cgi?id=67016
--- Comment #1 from Martin Andersson g02maran@gmail.com --- Perhaps mesa needs to be updated after this commit. I have tried to change mesa to align to 32768 instead of 4096. With some changes I can make the test pass a few times before it hangs. It does not hard lock everytime with the changes, so I managed to get a dmesg. Don't know how useful it is though because of my, probably incorrect, changes.