On Sun, 14 Dec 2014 10:14:44 -0800 "Paul E. McKenney" <[email protected]> wrote:
> > diff --git a/init/main.c b/init/main.c > > index 800a0daede7e..060e60b6aa59 100644 > > --- a/init/main.c > > +++ b/init/main.c > > @@ -561,6 +561,9 @@ asmlinkage __visible void __init start_kernel(void) > > trap_init(); > > mm_init(); > > > > + /* trace_printk() and trace points may be used after this */ > > + trace_init(); > > Or if you aren't going to use call_rcu_sched() before this point, I could > move the call_rcu_sched()-relevant initialization to this point. Or make > the compiler do it -- I am pretty sure that the per-CPU variables are in > place at this point. > Well, we could move trace_init() after rcu_init() for now too, and remove my tracepoint patch. But I'd like to have trace_init() go before sched_init() since that could possibly use debugging tracepoints as well. So if you could add a rcu_partial_init() that makes calling call_rcu_sched() work, that would be great. That could be for 3.20 then, and for now, I just move trace_init() after rcu_init() which is still before irq_init() that Thomas needs for his work. -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
