On Tue, 07 Aug 2018 19:54:13 -0400 Joel Fernandes <joe...@google.com> wrote:
> >OK, I hit this bug, but it's not because of the partial revert. This > >bug seems it needs to be another partial revert. I like you movement of > >the code, but I'm starting to doubt that we can use a trace event as a > >hook for critical areas yet. Well, not until we can use srcu in NMI. > > > > I sent a patch to use srcu for all tracepoints including nmi. That > patch also removes this warning and fixes the one other issue masami > reported (hot plug causing a warning). Is it one I can take, or does Paul have it? I'll need it to continue with this as is, because I can't pass my tests without triggering that warning (and that fails the test). > > If Paul and Mathieu can confirm SRCU works on offline CPUs that would > be great. Yes please. > > It's just this one warning or anything else that makes you feel > tracepoints for critical paths isn't feasible? Currently I'm down to this, but I can't get past my first test in my ktest suite, because it fails here. -- Steve
