On 06/24/2015 02:29 PM, Peter Zijlstra 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'.
Fair enough. I can resend or whoever applies this patch can s/Silence/Fix/ on the $subject. -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project -- 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/
