On 07/09/2013 10:35 AM, Stephen Boyd wrote: > On 07/09, Stephen Warren wrote: >> On 07/08/2013 06:58 PM, Stephen Boyd wrote: >>> On 07/08, Stephen Warren wrote: >>>> CPU hotplug (replug) on Tegra HW seems to be occasionally broken due to >>>> commit 0647065 "clocksource: Add generic dummy timer driver" in >>>> linux-next. Reverting that commit solves the issue. >>> >>> We found some breakage during boot that has been fixed by two >>> commits in linus' tree already. Do you know if you have these two >>> patches >>> >>> 1f73a9806bdd07a5106409bbcab3884078bd34fe >>> 07bd1172902e782f288e4d44b1fde7dec0f08b6f >> >> I didn't before since I was using next-20130705, but I just tried >> next-20130709 which does have those two commits, and I still see the issue. >> > > Ok can you get the output of /proc/timer_list and send it back Sure, it's below. I took another snapshot after unplugging then re-plugging CPU1, and there was no difference except in the actual time values and list of queued events (at ~line 12). The set of timers, modes, etc. were all the same. > Timer List Version: v0.7 > HRTIMER_MAX_CLOCK_BASES: 4 > now at 75889089000 nsecs > > cpu: 0 > clock 0: > .base: c0c376a0 > .index: 0 > .resolution: 1 nsecs > .get_time: ktime_get > .offset: 0 nsecs > active timers: > #0: <c0c384c0>, menu_hrtimer_notify, S:01, hrtimer_start, swapper/0/0 > # expires at 75889183000-75889183000 nsecs [in 94000 to 94000 nsecs] > #1: <c0c379a8>, tick_sched_timer, S:01, hrtimer_start_range_ns, swapper/0/0 > # expires at 75890000000-75890000000 nsecs [in 911000 to 911000 nsecs] > #2: <def3a550>, ehci_hrtimer_func, S:01, hrtimer_start_range_ns, swapper/0/0 > # expires at 75921594000-75922594000 nsecs [in 32505000 to 33505000 nsecs] > #3: <def3ad50>, ehci_hrtimer_func, S:01, hrtimer_start_range_ns, setfont/436 > # expires at 75921599000-75922599000 nsecs [in 32510000 to 33510000 nsecs] > #4: <defd3990>, it_real_fn, S:01, hrtimer_start, syslogd/590 > # expires at 102888764000-102888764000 nsecs [in 26999675000 to 26999675000 nsecs] > #5: <defd3990>, it_real_fn, S:01, hrtimer_start, syslogd/590 > # expires at 102888764000-102888764000 nsecs [in 26999675000 to 26999675000 nsecs] > #6: <df7c1b30>, hrtimer_wakeup, S:01, hrtimer_start_range_ns, avahi-daemon/352 > # expires at 117911912000-117961554999 nsecs [in 42022823000 to 42072465999 nsecs] > #7: <dd857a90>, hrtimer_wakeup, S:01, hrtimer_start_range_ns, dhclient/690 > # expires at 267143504000-267243504000 nsecs [in 191254415000 to 191354415000 nsecs] > #8: <de8eff28>, hrtimer_wakeup, S:01, hrtimer_start_range_ns, atd/557 > # expires at 3611972607000-3611972657000 nsecs [in 3536083518000 to 3536083568000 nsecs] > clock 1: > .base: c0c376d8 > .index: 1 > .resolution: 1 nsecs > .get_time: ktime_get_real > .offset: 24375428000 nsecs > active timers: > clock 2: > .base: c0c37710 > .index: 2 > .resolution: 1 nsecs > .get_time: ktime_get_boottime > .offset: 0 nsecs > active timers: > clock 3: > .base: c0c37748 > .index: 3 > .resolution: 1 nsecs > .get_time: ktime_get_clocktai > .offset: 24375428000 nsecs > active timers: > .expires_next : 75889329000 nsecs > .hres_active : 1 > .nr_events : 4712 > .nr_retries : 2 > .nr_hangs : 0 > .max_hang_time : 0 nsecs > .nohz_mode : 2 > .last_tick : 75740000000 nsecs > .tick_stopped : 0 > .idle_jiffies : 4294944869 > .idle_calls : 13615 > .idle_sleeps : 5374 > .idle_entrytime : 75889188000 nsecs > .idle_waketime : 75881026000 nsecs > .idle_exittime : 75881243000 nsecs > .idle_sleeptime : 61747543000 nsecs > .iowait_sleeptime: 7327300000 nsecs > .last_jiffies : 4294944884 > .next_jiffies : 4294944885 > .idle_expires : 75930000000 nsecs > jiffies: 4294944884 > > cpu: 1 > clock 0: > .base: c0c3f6a0 > .index: 0 > .resolution: 1 nsecs > .get_time: ktime_get > .offset: 0 nsecs > active timers: > #0: <c0c3f9a8>, tick_sched_timer, S:01, hrtimer_start_range_ns, swapper/1/0 > # expires at 75900000000-75900000000 nsecs [in 10911000 to 10911000 nsecs] > #1: <de835b30>, hrtimer_wakeup, S:01, hrtimer_start_range_ns, console-kit-dae/734 > # expires at 79000444000-79026433999 nsecs [in 3111355000 to 3137344999 nsecs] > #2: <de833b30>, hrtimer_wakeup, S:01, hrtimer_start_range_ns, rpcbind/487 > # expires at 101235760000-101265759998 nsecs [in 25346671000 to 25376670998 nsecs] > #3: <debdff28>, hrtimer_wakeup, S:01, hrtimer_start_range_ns, rwhod/668 > # expires at 193712567000-193712617000 nsecs [in 117823478000 to 117823528000 nsecs] > #4: <de9abb30>, hrtimer_wakeup, S:01, hrtimer_start_range_ns, NetworkManager/543 > # expires at 313000895000-313100895000 nsecs [in 237111806000 to 237211806000 nsecs] > clock 1: > .base: c0c3f6d8 > .index: 1 > .resolution: 1 nsecs > .get_time: ktime_get_real > .offset: 24375428000 nsecs > active timers: > clock 2: > .base: c0c3f710 > .index: 2 > .resolution: 1 nsecs > .get_time: ktime_get_boottime > .offset: 0 nsecs > active timers: > clock 3: > .base: c0c3f748 > .index: 3 > .resolution: 1 nsecs > .get_time: ktime_get_clocktai > .offset: 24375428000 nsecs > active timers: > .expires_next : 75900000000 nsecs > .hres_active : 1 > .nr_events : 4578 > .nr_retries : 1 > .nr_hangs : 0 > .max_hang_time : 0 nsecs > .nohz_mode : 2 > .last_tick : 75890000000 nsecs > .tick_stopped : 0 > .idle_jiffies : 4294944884 > .idle_calls : 6538 > .idle_sleeps : 1104 > .idle_entrytime : 75891066000 nsecs > .idle_waketime : 75821610000 nsecs > .idle_exittime : 75887089000 nsecs > .idle_sleeptime : 67621307000 nsecs > .iowait_sleeptime: 4203885000 nsecs > .last_jiffies : 4294944885 > .next_jiffies : 4294944886 > .idle_expires : 120710000000 nsecs > jiffies: 4294944885 > > Tick Device: mode: 1 > Broadcast device > Clock Event Device: timer0 > max_delta_ns: 536870948000 > min_delta_ns: 1000 > mult: 4294967 > shift: 32 > mode: 3 > next_event: 75922594000 nsecs > set_next_event: tegra_timer_set_next_event > set_mode: tegra_timer_set_mode > event_handler: tick_handle_oneshot_broadcast > retries: 0 > > tick_broadcast_mask: 00000000 > tick_broadcast_oneshot_mask: 00000000 > > Tick Device: mode: 1 > Per CPU device: 0 > Clock Event Device: local_timer > max_delta_ns: 17179869180 > min_delta_ns: 1000 > mult: 536870912 > shift: 31 > mode: 3 > next_event: 75900000000 nsecs > set_next_event: twd_set_next_event > set_mode: twd_set_mode > event_handler: hrtimer_interrupt > retries: 0 > > Tick Device: mode: 1 > Per CPU device: 1 > Clock Event Device: local_timer > max_delta_ns: 17179869180 > min_delta_ns: 1000 > mult: 536870912 > shift: 31 > mode: 3 > next_event: 75900000000 nsecs > set_next_event: twd_set_next_event > set_mode: twd_set_mode > event_handler: hrtimer_interrupt > retries: 0 -- 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
