On Mon, Dec 5, 2016 at 10:11 AM, Andy Lutomirski <[email protected]> wrote: > > So your kernel has been smp-alternatived. That 3e comes from > alternatives_smp_unlock. If you're running on SMP with UP > alternatives, things will break.
I'm assuming he's just running in a VM with a single CPU.
The problem that I pointed out with assuming wake_up_all() actually
removes all wait queue entries does not depend on SMP. The race is
much more fundamental and long-lived.
Linus
