Re: [PATCH v2 2/2] tracing/rcu: don't trace rcu_callback on offline CPUs

2016-02-15 Thread Paul E. McKenney
On Sun, Feb 14, 2016 at 10:05:22PM -0800, Paul E. McKenney wrote: > On Sun, Feb 14, 2016 at 09:50:18AM +0300, Denis Kirjanov wrote: > > Tracepoints use RCU for protection and they must not be called on > > offline CPUS. So make this tracepoint conditional. > > Good catch! Queued for review and te

Re: [PATCH v2 2/2] tracing/rcu: don't trace rcu_callback on offline CPUs

2016-02-14 Thread Paul E. McKenney
On Sun, Feb 14, 2016 at 09:50:18AM +0300, Denis Kirjanov wrote: > Tracepoints use RCU for protection and they must not be called on > offline CPUS. So make this tracepoint conditional. Good catch! Queued for review and testing. Thanx, Paul

[PATCH v2 2/2] tracing/rcu: don't trace rcu_callback on offline CPUs

2016-02-13 Thread Denis Kirjanov
Tracepoints use RCU for protection and they must not be called on offline CPUS. So make this tracepoint conditional. NFO: suspicious RCU usage. ] [ 413.344670] 4.4.0-6-g0fe53e8-dirty #33 Tainted: G S [ 413.344672] --- [ 413.344673] include/trace/events/rcu.h:457