On Mon, 8 May 2017 14:07:54 -0700 "Paul E. McKenney" <paul...@linux.vnet.ibm.com> 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