On Mon, 2013-07-22 at 12:32 +0800, Daniel Lezcano wrote: > On 07/22/2013 06:24 AM, Joseph Lo wrote: > > On Mon, 2013-07-22 at 12:16 +0800, Daniel Lezcano wrote: > >> On 07/22/2013 05:15 AM, Joseph Lo wrote: > >>> On Fri, 2013-07-19 at 18:52 +0800, Daniel Lezcano wrote: > >>>> On 07/19/2013 09:14 AM, Joseph Lo wrote: > >>>>> On Thu, 2013-07-18 at 20:41 +0800, Daniel Lezcano wrote: > >>>>>> On 07/18/2013 01:08 PM, Joseph Lo wrote: > >>>>>>> On Thu, 2013-07-18 at 04:31 +0800, Stephen Warren wrote: > >>>>>>>> On 07/17/2013 04:15 AM, Joseph Lo wrote: > >>>>>>>>> On Wed, 2013-07-17 at 03:51 +0800, Stephen Warren wrote: > >>>>>>>>>> On 07/16/2013 05:17 AM, Joseph Lo wrote: > >>>>>>>>>>> On Tue, 2013-07-16 at 02:04 +0800, Stephen Warren wrote: > >>>>>>>>>>>> On 06/25/2013 03:23 AM, Joseph Lo wrote: > >>>>>>>>>>>>> Use the CPUIDLE_FLAG_TIMER_STOP and let the cpuidle framework > >>>>>>>>>>>>> to handle the CLOCK_EVT_NOTIFY_BROADCAST_ENTER/EXIT when entering > >>>>>>>>>>>>> this state. > >>>>>>>> ... [ discussion of issues with Joesph's patches applied] > >>>>>>>>> > > [...] > >>>> > >>>> Ok, so the problem occurs with the CPUIDLE_FLAG_TIMER_STOP flag only on > >>>> tegra114, right ? > >>>> > >>>> Sorry, I am a bit lost :) > >>>> > >>> Here are the issues that happen after apply CPUIDLE_FLAG_TIMER_STOP. > >>> 1) Tegra114/30 > >>> The warning message at kernel/time/tick-broadcast.c:667 > >>> tick_broadcast_oneshot_control could be triggered when doing CPU hot > >>> plug stress test. > >> > >> With the fix for tick-broadcast.c [1] ? > > Yes. > > > >> > >>> 2) Tegra20 > >>> The system is easy to stick or become lag. > >>> The CPU hot plug is easy to cause system stick too. > >>> > >>> The fix I suggested in another mail looks can fix all the issues above. > >>> I verified it again today on 3 different Tegra SoC platforms. > >> > >> Not sure your patch fixes the problem. > >> > >> I am wondering if there isn't a underlaying problem which surface with > >> the flag. > > Does the attached patch changes something ? > No, the result is the same. -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
