Re: [PATCH 2/3] livepatch/rcu: Warn when system consistency is broken in RCU code

[Steven Rostedt]

On Mon, 8 May 2017 14:07:54 -0700
"Paul E. McKenney" <paulmck@xxxxxxxxxxxxxxxxxx> wrote:
 
> Except that, as Steven will quickly point out, this won't work at the
> very edges of the NMI, when NMI_MASK won't be set in preempt_count().

I believe those parts of the NMI has "notrace" because it can break
other parts of ftrace too.

-- Steve