On Wed, 24 Jun 2015 23:29:30 +0200 Peter Zijlstra <[email protected]> wrote:
> On Wed, Jun 24, 2015 at 01:14:18PM -0700, Stephen Boyd wrote: > > John Stultz reported an RCU splat on ARM with ipi trace events > > enabled. It looks like the same problem exists on ARM64. > > > > At this point in the IPI handling path we haven't called > > irq_enter() yet, so RCU doesn't know that we're about to exit > > idle and properly warns that we're using RCU from an idle CPU. > > Use trace_ipi_entry_rcuidle() instead of trace_ipi_entry() so > > that RCU is informed about our exit from idle. > > I have a problem with $subject. It says 'silence', whereas afaict this > fixes an actual bug, so it should be 'fixes'. Agreed, otherwise Acked-by: Steven Rostedt <[email protected]> -- 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/
