Messages in this thread | | | Date | Tue, 24 Jan 2012 18:04:17 +0100 | From | Frederic Weisbecker <> | Subject | Re: [GIT PULL] RCU changes for v3.3 |
| |
On Tue, Jan 24, 2012 at 08:53:13AM -0800, Paul E. McKenney wrote: > On Tue, Jan 24, 2012 at 05:25:12PM +0100, Eric Dumazet wrote: > > Le jeudi 05 janvier 2012 à 14:54 +0100, Ingo Molnar a écrit : > > > Linus, > > > > > > Please pull the latest core-rcu-for-linus git tree from: > > > > > > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git core-rcu-for-linus > > > > > > Thanks, > > > > Hi guys > > > > New lockdep warning here : > > Hmmm... Looks like tracing from within the inner idle loop. > > Because RCU ignores CPUs in the inner idle loop (after the call to > rcu_idle_enter()), RCU read-side critical sections are not legal there. > > One approach would be to delay the call to rcu_idle_enter() until after > the tracing is done, and to ensure that the call to rcu_idle_exit() happens > before any tracing. I am not seeing perf_trace_power(), so need to > update and look again. Or are you looking at -next rather than mainline?
perf_trace_power() is automatically generated by include/trace/ftrace.h This is a tracepoint handler so we don't need to worry about it. The problem is the call to the tracepoint itself. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |