On Fri, Feb 22, 2013 at 10:24:00AM +0000, Thomas Gleixner wrote: > On Fri, 22 Feb 2013, Santosh Shilimkar wrote: > > BTW, Lorenzo off-list mentioned to me about warning in boot-up > > which I missed while testing your patch. It will take bit more > > time for me to look into it and hence thought of reporting it. > > > > [ 2.186126] ------------[ cut here ]------------ > > [ 2.190979] WARNING: at kernel/time/tick-broadcast.c:501 > > tick_broadcast_oneshot_control+0x1c0/0x21c() > > Which one is that? tick_broadcast_pending or tick_force_broadcast_mask ?
It is the tick_force_broadcast_mask and I think that's because on all systems we are testing, the broadcast timer IRQ is a thundering herd, all CPUs get out of idle at once and try to get out of broadcast mode at more or less the same time. Lorenzo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/