Re: bio linked list corruption.

[Linus Torvalds]

On Mon, Dec 5, 2016 at 10:11 AM, Andy Lutomirski <luto@xxxxxxxxxx> 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