(In reply to Takashi Iwai from comment #5) ... > David, could you install openSUSE-42.1 kernel onto 42.2 system, boot it, and > check whether rfkill really works as is? I guess rather it's in other piece. I installed 4.1.34-1.g67a2e9d-default from the 42.1 kernel repo. rfkill doesn't work correctly, so it does appear to be affected by user-space, as you've suggested. Still, I don't see the kernel workqueue warnings with the old kernel.