Comment 4 for bug 1881134

This is now fixed upstream in this commit:
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=7ad816762f9bf89e940e618ea40c43138b479e10

This might be important enough to patch in Ubuntu eventually. Currently virtualized 32-bit guest operating systems combined with amdgpu driver on the host cause random crashes.