Re: 3.11-rc regression bisected: s2disk does not work (was Re:[PATCH v3 13/16] futex: use freezable blocking call)

From: Michael Leun
Date: Tue Jul 23 2013 - 16:01:18 EST

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In reply to: Colin Cross: "Re: 3.11-rc regression bisected: s2disk does not work (was Re: [PATCHv3 13/16] futex: use freezable blocking call)"
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On Tue, 23 Jul 2013 12:29:57 -0700
Colin Cross <ccross@xxxxxxxxxxx> wrote:

> On Tue, Jul 23, 2013 at 12:16 PM, Michael Leun
> <lkml20130126@xxxxxxxxxxxxxxx> wrote:
> > On Tue, 23 Jul 2013 11:29:57 -0700
> > Colin Cross <ccross@xxxxxxxxxxx> wrote:
> >
> >> On Tue, Jul 23, 2013 at 11:08 AM, Michael Leun
> >> <lkml20130126@xxxxxxxxxxxxxxx> wrote:
> >> > On Mon, 22 Jul 2013 16:55:58 -0700
> >> > Colin Cross <ccross@xxxxxxxxxxx> wrote:
> >> >
> >> >> On Mon, Jul 22, 2013 at 4:02 PM, Michael Leun
> >> >> <lkml20130126@xxxxxxxxxxxxxxx> wrote:
> >> >> > On Mon, 6 May 2013 16:50:18 -0700
> >> >> > Colin Cross <ccross@xxxxxxxxxxx> wrote:
> >> >> >
> >> >> >> Avoid waking up every thread sleeping in a futex_wait call
> >> >> >> during
> >> >> > [...]
> >> >> >
> >> >> > With 3.11-rc s2disk from suspend-utils stopped working:
> >> >> > Frozen at displaying 0% of saving image to disk.
> >> >> >
> >> >> > echo "1" >/sys/power/state still works.
> >> >> >
> >> >> > Bisecting yielded 88c8004fd3a5fdd2378069de86b90b21110d33a4,
> >> >> > reverting that from 3.11-rc2 makes s2disk working again.
> >> >> >
> >> >>
> >> >> I think the expanded use of the freezable_* helpers is exposing
> >> >> an existing bug in hibernation. The SNAPSHOT_FREEZE ioctl calls
> >> >> freeze_processes(), which sets the global system_freezing_cnt
> >> >> and pm_freezing. try_to_freeze_tasks then sends every process
> >> >> except current a signal which causes them all to end up in the
> >> >> refrigerator. The current task then returns back to userspace
> >> >> and continues its work to suspend to disk. If that task ever
> >> >> hits a call to try_to_freeze() in the kernel, it will see
> >> >> system_freezing_cnt and pm_freezing=true and freeze, and suspend
> >> >> to disk will hang forever. It could hit try_to_freeze() because
> >> >> of a signal delivered to the task, or from calling any syscall
> >> >> that uses a freezable_* helper like the one I added to
> >> >> sys_futex.
> >> >>
> >> >> I think the right solution is to add a flag to the freezing task
> >> >> that marks it unfreezable. I think PF_NOFREEZE would work,
> >> >> although it is normally used on kernel threads, can you see if
> >> >> the attached patch helps?
> >> >
> >> > That patch helps.
> >> >
> >> > BTW, the only machine I can reproduce this bug with is an
> >> > i7-3630QM notebook. Cannot reproduce on an Core Duo U1400 and
> >> > cannot reproduce on an i7 M 620.
> >> >
> >> > Are the sysreq backtraces still wanted? If so, any tip, how I
> >> > could get them saved?
> >
> > Darren Hart <dvhart@xxxxxxxxxxxxxxx> wrote:
> >
> >> Typically by setting up a serial console or a netconsole and saving
> > [...]
> >> Is this what you are asking?
> >
> > Yes, and it indeed works - I halfway expected the net / netconsole
> > stuff being already frozen in that situation...
> >
> > Thanks, Darren - see below for the backtraces.
> >
> >>
> >> Any chance that the failing machine has threads=y in the
> >> suspend.conf file?
> >
> > Yes, that indeed is the trigger / difference, enabling that on the
> > U4100 (its not a U1400) machine makes that fail also and disabling
> > makes it work on the i7-3630QM.
>
> Thanks, if you get a chance sysrq w might be interesting but I think
> we have enough info to solve the problem.
>

Now that I've set up everything this is no big effort...

[ 343.801889] Loglevel set to 9
[ 347.336205] [<ffffffff81496df4>] schedule+0x24/0x70
[ 347.337184] [<ffffffff81097aad>] __refrigerator+0x4d/0x140
[ 347.338170] [<ffffffff8107601e>] ? __wake_up+0x4e/0x70
[ 347.339163] [<ffffffffa0198866>] kjournald2+0x236/0x240 [jbd2]
[ 347.340156] [<ffffffff8106ba70>] ? finish_wait+0x80/0x80
[ 347.341162] [<ffffffffa0198630>] ? journal_init_common+0x160/0x160 [jbd2]
[ 347.342162] [<ffffffff8106b27b>] kthread+0xbb/0xc0
[ 347.343143] [<ffffffff8106b1c0>] ? kthread_create_on_node+0x130/0x130
[ 347.344116] [<ffffffff814990ac>] ret_from_fork+0x7c/0xb0
[ 347.345059] [<ffffffff8106b1c0>] ? kthread_create_on_node+0x130/0x130
[ 347.345983] systemd-journal D ffff88082f252d40 0 526 1 0x00000000
[ 347.346919] ffff8807f63e7dd8 0000000000000082 ffff8807f72e1750 ffff8807f63e7fd8
[ 347.347871] ffff8807f63e7fd8 ffff8807f63e7fd8 ffff88080350aea0 ffff8807f72e1750
[ 347.348827] ffff8807f63e7dc8 ffff8807f72e1750 ffff8807f72e1750 ffff8807f72e1750
[ 347.349784] Call Trace:
[ 347.350733] [<ffffffff81496df4>] schedule+0x24/0x70
[ 347.351688] [<ffffffff81097aad>] __refrigerator+0x4d/0x140
[ 347.352641] [<ffffffff810bab88>] ? cgroup_freezing+0x28/0x40
[ 347.353592] [<ffffffff811b3a30>] ep_poll+0x320/0x340
[ 347.354533] [<ffffffff81392361>] ? sock_ioctl+0x71/0x2a0
[ 347.355473] [<ffffffff8107b120>] ? try_to_wake_up+0x2b0/0x2b0
[ 347.356414] [<ffffffff811b4aa5>] SyS_epoll_wait+0xd5/0x100
[ 347.357350] [<ffffffff81499152>] system_call_fastpath+0x16/0x1b
[ 347.358286] kauditd D ffff88082f312d40 0 527 2 0x00000000
[ 347.359236] ffff8807f618bde8 0000000000000046 ffff8807f7361750 ffff8807f618bfd8
[ 347.360198] ffff8807f618bfd8 ffff8807f618bfd8 ffff880803540000 ffff8807f7361750
[ 347.361165] ffff8807f7259380 ffff8807f7361750 ffff8807f7361750 ffff8807f7361750
[ 347.362132] Call Trace:
[ 347.363084] [<ffffffff81496df4>] schedule+0x24/0x70
[ 347.364043] [<ffffffff81097aad>] __refrigerator+0x4d/0x140
[ 347.365001] [<ffffffff8107601e>] ? __wake_up+0x4e/0x70
[ 347.365959] [<ffffffff810c0c5a>] kauditd_thread+0x1aa/0x1b0
[ 347.366913] [<ffffffff8107b120>] ? try_to_wake_up+0x2b0/0x2b0
[ 347.367860] [<ffffffff810c0ab0>] ? audit_printk_skb+0x70/0x70
[ 347.368805] [<ffffffff8106b27b>] kthread+0xbb/0xc0
[ 347.369746] [<ffffffff8106b1c0>] ? kthread_create_on_node+0x130/0x130
[ 347.370685] [<ffffffff814990ac>] ret_from_fork+0x7c/0xb0
[ 347.371621] [<ffffffff8106b1c0>] ? kthread_create_on_node+0x130/0x130
[ 347.372565] systemd-udevd D ffff88082f252d40 0 553 1 0x00000000
[ 347.373524] ffff8807f5fdbdd8 0000000000000086 ffff8807f72b5d40 ffff8807f5fdbfd8
[ 347.374496] ffff8807f5fdbfd8 ffff8807f5fdbfd8 ffff88080350aea0 ffff8807f72b5d40
[ 347.375471] 0000000000000000 ffff8807f72b5d40 ffff8807f72b5d40 ffff8807f72b5d40
[ 347.376444] Call Trace:
[ 347.377402] [<ffffffff81496df4>] schedule+0x24/0x70
[ 347.378369] [<ffffffff81097aad>] __refrigerator+0x4d/0x140
[ 347.379333] [<ffffffff811b3a30>] ep_poll+0x320/0x340
[ 347.380296] [<ffffffff8107b120>] ? try_to_wake_up+0x2b0/0x2b0
[ 347.381254] [<ffffffff811b4aa5>] SyS_epoll_wait+0xd5/0x100
[ 347.382206] [<ffffffff81499152>] system_call_fastpath+0x16/0x1b
[ 347.383158] haveged D ffff88082f352d40 0 858 1 0x00000000
[ 347.384129] ffff8807f641b908 0000000000000082 ffff8807f45add40 ffff8807f641bfd8[ 347.385106] ffff8807f641bfd8 ffff8807f641bfd8 ffff880803541750 ffff8807f45add40
[ 347.386083] ffff8807f641b8f8 ffff8807f45add40 ffff8807f45add40 ffff8807f45add40[ 347.389000] [<ffffffff81097aad>] __refrigerator+0x4d/0x140
[ 347.389976] [<ffffffff810bab88>] ? cgroup_freezing+0x28/0x40
[ 347.390949] [<ffffffff81180699>] poll_schedule_timeout+0xa9/0xb0
[ 347.391915] [<ffffffff81180fd5>] do_select+0x6f5/0x840
[ 347.393845] [<ffffffff81180580>] ? __pollwait+0xf0/0xf0
[ 347.396686] [<ffffffff81105834>] ? filemap_fault+0x84/0x460
[ 347.397623] [<ffffffff81103512>] ? unlock_page+0x22/0x30
[ 347.401351] [<ffffffff81181303>] core_sys_select+0x1e3/0x310
[ 347.402278] [<ffffffff81306c7b>] ? credit_entropy_bits.part.7+0x18b/0x1f0
[ 347.403209] [<ffffffff8130710a>] ? random_ioctl+0x16a/0x190
[ 347.404140] [<ffffffff8130710a>] ? random_ioctl+0x16a/0x190
[ 347.540893] ffff8807f7378d00 ffff8808029f8000 ffff8808029f8000[ 347.543682] [<ffffffff81097aad>] __refrigerator+0x4d/0x140
[ 347.544609] [<ffffffff8107601e>] ? __wake_up+0x4e/0x70
[ 347.546466] [<ffffffff8106ba70>] ? finish_wait+0x80/0x80
[ 347.549269] [<ffffffff8106b1c0>] ? kthread_create_on_node+0x130/0x130
[ 347.553048] ffff8807f4de7d18 0000000000000086 ffff8807f6e02ea0 ffff8807f4de7fd8[ 347.554022] ffff8807f4de7fd8
ffff8807f6e02ea0 ffff8807f6e02ea0
[ 347.556887] [<ffffffff81496df4>] schedule+0x24/0x70
[ 347.557837] [<ffffffff81097aad>] __refrigerator+0x4d/0x140
[ 347.559725] [<ffffffff8105b14c>] get_signal_to_deliver+0x5fc/0x650
ffff88082f212d40

[ 347.577740] [<ffffffff81180fd5>] do_select+0x6f5/0x840
[ 347.584244] [<ffffffff81128d6e>] ? __do_fault+0x1ee/0x520
[ 347.590613] [<ffffffff81499152>] system_call_fastpath+0x16/0x1b
[ 347.592425] ffff8807f5ce9908 ffff8807f4a82ea0 ffff8807f5ce9fd8[ 347.594265] 0000000000007530 ffff8807f4a82ea0
[ 347.597922] [<ffffffff8106ed7f>] ? hrtimer_start_range_ns+0xf/0x20
ffff88082f212d40 [ 347.813797] ffff8807fc6d5a68 0000000000000086 ffff8807fc6d5fd8
[ 347.814556] ffff8807fc6d5fd8 ffffffff81a10440[ 347.956796] [<ffffffff81097aad>] __refrigerator+0x4d/0x140
[ 347.957668] [<ffffffff810bab88>] ? cgroup_freezing+0x28/0x40
[ 347.958543] [<ffffffff8105b14c>] get_signal_to_deliver+0x5fc/0x650
[ 347.959418] [<ffffffff81002392>] do_signal+0x52/0x5a0
[ 347.960290] [<ffffffff8107b120>] ? try_to_wake_up+0x2b0/0x2b0
[ 347.961160] [<ffffffff812e7857>] ? tty_ldisc_deref+0x37/0xa0
[ 347.962029] [<ffffffff812dfd61>] ? tty_read+0xa1/0x100
[ 347.962894] [<ffffffff81002945>] do_notify_resume+0x65/0x80
[ 347.963762] [<ffffffff8116e21d>] ? SyS_read+0x4d/0xa0
[ 347.964627] [<ffffffff814993da>] int_signal+0x12/0x17
[ 347.965489] bash D ffff88082f212d40 0 2780 2707 0x00000004
[ 347.966369] ffff8807f99b7d18 0000000000000086 ffff8807f9cfc5f0 ffff8807f99b7fd8
[ 347.967258] ffff8807f99b7fd8 ffff8807f99b7fd8 ffffffff81a10440 ffff8807f9cfc5f0
[ 347.968140] ffff8807f99b7d08 ffff8807f9cfc5f0 ffff8807f9cfc5f0 ffff8807f9cfc5f0
[ 347.969014] Call Trace:
[ 347.969873] [<ffffffff81496df4>] schedule+0x24/0x70
[ 347.970743] [<ffffffff81097aad>] __refrigerator+0x4d/0x140
[ 347.971606] [<ffffffff810bab88>] ? cgroup_freezing+0x28/0x40
[ 347.972469] [<ffffffff8105b14c>] get_signal_to_deliver+0x5fc/0x650
[ 347.973333] [<ffffffff81002392>] do_signal+0x52/0x5a0
[ 347.974193] [<ffffffff8107b120>] ? try_to_wake_up+0x2b0/0x2b0
[ 347.975056] [<ffffffff812e7857>] ? tty_ldisc_deref+0x37/0xa0
[ 347.975917] [<ffffffff812dfd61>] ? tty_read+0xa1/0x100
[ 347.976774] [<ffffffff81002945>] do_notify_resume+0x65/0x80
[ 347.977634] [<ffffffff8116e21d>] ? SyS_read+0x4d/0xa0
[ 347.978492] [<ffffffff814993da>] int_signal+0x12/0x17
[ 347.979348] bash D ffff88082f252d40 0 2786 2700 0x00000004
[ 347.980221] ffff8807f98d3d18 0000000000000086 ffff8807f9f92ea0 ffff8807f98d3fd8
[ 347.981113] ffff8807f98d3fd8 ffff8807f98d3fd8 ffff8807f9de0000 ffff8807f9f92ea0
[ 347.981996] ffff8807f98d3d08 ffff8807f9f92ea0 ffff8807f9f92ea0 ffff8807f9f92ea0
[ 347.982868] Call Trace:
[ 347.983722] [<ffffffff81496df4>] schedule+0x24/0x70
[ 347.984587] [<ffffffff81097aad>] __refrigerator+0x4d/0x140
[ 347.985448] [<ffffffff810bab88>] ? cgroup_freezing+0x28/0x40
[ 347.986306] [<ffffffff8105b14c>] get_signal_to_deliver+0x5fc/0x650
[ 347.987168] [<ffffffff81002392>] do_signal+0x52/0x5a0
[ 347.988027] [<ffffffff8107b120>] ? try_to_wake_up+0x2b0/0x2b0
[ 347.988890] [<ffffffff812e7857>] ? tty_ldisc_deref+0x37/0xa0
[ 347.989748] [<ffffffff812dfd61>] ? tty_read+0xa1/0x100
[ 347.990603] [<ffffffff81002945>] do_notify_resume+0x65/0x80
[ 347.991460] [<ffffffff8116e21d>] ? SyS_read+0x4d/0xa0
[ 347.992316] [<ffffffff814993da>] int_signal+0x12/0x17
[ 347.993170] bash D ffff88082f352d40 0 2792 2707 0x00000004
[ 347.994042] ffff8807f9f25d18 0000000000000086 ffff8807f9cf8000 ffff8807f9f25fd8
[ 347.994930] ffff8807f9f25fd8 ffff8807f9f25fd8 ffff8807fa300000 ffff8807f9cf8000
[ 347.995810] ffff8807f9f25d08 ffff8807f9cf8000 ffff8807f9cf8000 ffff8807f9cf8000
[ 347.996680] Call Trace:
[ 347.997533] [<ffffffff81496df4>] schedule+0x24/0x70
[ 347.998397] [<ffffffff81097aad>] __refrigerator+0x4d/0x140
[ 347.999254] [<ffffffff810bab88>] ? cgroup_freezing+0x28/0x40
[ 348.000111] [<ffffffff8105b14c>] get_signal_to_deliver+0x5fc/0x650
[ 348.000971] [<ffffffff81002392>] do_signal+0x52/0x5a0
[ 348.001831] [<ffffffff8107b120>] ? try_to_wake_up+0x2b0/0x2b0
[ 348.002687] [<ffffffff812e7857>] ? tty_ldisc_deref+0x37/0xa0
[ 348.003540] [<ffffffff812dfd61>] ? tty_read+0xa1/0x100
[ 348.004395] [<ffffffff81002945>] do_notify_resume+0x65/0x80
[ 348.005248] [<ffffffff8116e21d>] ? SyS_read+0x4d/0xa0
[ 348.006102] [<ffffffff814993da>] int_signal+0x12/0x17
[ 348.006955] bash D ffff88082f252d40 0 2798 2700 0x00000004
[ 348.007823] ffff8807f9e41d18 0000000000000082 ffff8807f9de0000 ffff8807f9e41fd8
[ 348.008709] ffff8807f9e41fd8 ffff8807f9e41fd8 ffff88080350aea0 ffff8807f9de0000
[ 348.009588] ffff8807f9e41d08 ffff8807f9de0000 ffff8807f9de0000 ffff8807f9de0000
[ 348.010460] Call Trace:
[ 348.011313] [<ffffffff81496df4>] schedule+0x24/0x70
[ 348.012179] [<ffffffff81097aad>] __refrigerator+0x4d/0x140
[ 348.013036] [<ffffffff810bab88>] ? cgroup_freezing+0x28/0x40
[ 348.013893] [<ffffffff8105b14c>] get_signal_to_deliver+0x5fc/0x650
[ 348.014755] [<ffffffff81002392>] do_signal+0x52/0x5a0
[ 348.015611] [<ffffffff8107b120>] ? try_to_wake_up+0x2b0/0x2b0
[ 348.016469] [<ffffffff812e7857>] ? tty_ldisc_deref+0x37/0xa0
[ 348.017325] [<ffffffff812dfd61>] ? tty_read+0xa1/0x100
[ 348.018179] [<ffffffff81002945>] do_notify_resume+0x65/0x80

[ 348.158814] ffff8807fc441fd8 ffff8807fc441fd8 ffff880803540000 ffff8807f9c4dd40
[ 348.159718] ffff8807fc441a58 ffff8807f9c4dd40 ffff8807f9c4dd40 ffff8807f9c4dd40
[ 348.160622] Call Trace:
[ 348.161503] [<ffffffff81496df4>] schedule+0x24/0x70
[ 348.162386] [<ffffffff81097aad>] __refrigerator+0x4d/0x140
[ 348.163269] [<ffffffff8106ed7f>] ? hrtimer_start_range_ns+0xf/0x20
[ 348.164158] [<ffffffff810bab88>] ? cgroup_freezing+0x28/0x40
[ 348.165039] [<ffffffff81180699>] poll_schedule_timeout+0xa9/0xb0
[ 348.165921] [<ffffffff81181b3d>] do_sys_poll+0x3ed/0x5b0
[ 348.166798] [<ffffffff81180580>] ? __pollwait+0xf0/0xf0
[ 348.167676] [<ffffffff81180580>] ? __pollwait+0xf0/0xf0
[ 348.168544] [<ffffffff81180580>] ? __pollwait+0xf0/0xf0
[ 348.169405] [<ffffffff81180580>] ? __pollwait+0xf0/0xf0
[ 348.170255] [<ffffffff81180580>] ? __pollwait+0xf0/0xf0
[ 348.171096] [<ffffffff81394c28>] ? SYSC_recvfrom+0x118/0x140
[ 348.171938] [<ffffffff81098e17>] ? ktime_get_ts+0x47/0xe0
[ 348.172781] [<ffffffff811808c2>] ? poll_select_set_timeout+0x72/0x90
[ 348.173624] [<ffffffff81181dcd>] SyS_poll+0x6d/0x100
[ 348.174468] [<ffffffff81499152>] system_call_fastpath+0x16/0x1b
[ 348.175314] systemd-sleep D ffff88082f292d40 0 3262 1 0x00000004
[ 348.176167] ffff8807fc7e1d18 0000000000000086 ffff8807f6fa8000 ffff8807fc7e1fd8
[ 348.177024] ffff8807fc7e1fd8 ffff8807fc7e1fd8 ffff88080350c5f0 ffff8807f6fa8000
[ 348.177881] ffff8807fc7e1d08 ffff8807f6fa8000 ffff8807f6fa8000 ffff8807f6fa8000
[ 348.178740] Call Trace:
[ 348.179575] [<ffffffff81496df4>] schedule+0x24/0x70
[ 348.180418] [<ffffffff81097aad>] __refrigerator+0x4d/0x140
[ 348.181264] [<ffffffff810bab88>] ? cgroup_freezing+0x28/0x40
[ 348.182109] [<ffffffff8105b14c>] get_signal_to_deliver+0x5fc/0x650
[ 348.182956] [<ffffffff81075ba4>] ? finish_task_switch+0x44/0xd0
[ 348.183803] [<ffffffff81002392>] do_signal+0x52/0x5a0
[ 348.184647] [<ffffffff8106bda1>] ? remove_wait_queue+0x51/0x60
[ 348.185494] [<ffffffff8104acd3>] ? do_wait+0x123/0x280
[ 348.186335] [<ffffffff8107b27b>] ? wake_up_new_task+0xfb/0x1a0
[ 348.187181] [<ffffffff81002945>] do_notify_resume+0x65/0x80
[ 348.188028] [<ffffffff81049a70>] ? task_stopped_code+0x50/0x50
[ 348.188880] [<ffffffff814993da>] int_signal+0x12/0x17
[ 348.189725] pm-hibernate D ffff88082f3d2d40 0 3264 3262 0x00000004
[ 348.190576] ffff8807fc16bd18 0000000000000086 ffff8807fa2eaea0 ffff8807fc16bfd8
[ 348.191439] ffff8807fc16bfd8 ffff8807fc16bfd8 ffff8808035445f0 ffff8807fa2eaea0
[ 348.192307] ffff8807fc16bd08 ffff8807fa2eaea0 ffff8807fa2eaea0 ffff8807fa2eaea0
[ 348.193163] Call Trace:
[ 348.194004] [<ffffffff81496df4>] schedule+0x24/0x70
[ 348.194852] [<ffffffff81097aad>] __refrigerator+0x4d/0x140
[ 348.195704] [<ffffffff810bab88>] ? cgroup_freezing+0x28/0x40
[ 348.196554] [<ffffffff8105b14c>] get_signal_to_deliver+0x5fc/0x650
[ 348.197406] [<ffffffff810801e3>] ? pick_next_task_fair+0x63/0x180
[ 348.198258] [<ffffffff81075ba4>] ? finish_task_switch+0x44/0xd0
[ 348.199114] [<ffffffff81002392>] do_signal+0x52/0x5a0
[ 348.199968] [<ffffffff8106bda1>] ? remove_wait_queue+0x51/0x60
[ 348.200817] [<ffffffff8104acd3>] ? do_wait+0x123/0x280
[ 348.201657] [<ffffffff8107b27b>] ? wake_up_new_task+0xfb/0x1a0
[ 348.202494] [<ffffffff81002945>] do_notify_resume+0x65/0x80
[ 348.203331] [<ffffffff81049a70>] ? task_stopped_code+0x50/0x50
[ 348.204166] [<ffffffff814993da>] int_signal+0x12/0x17
[ 348.204999] s2disk D ffff88082f392d40 0 3483 3264 0x00000000
[ 348.205841] ffff8807fc10fbf8 0000000000000082 ffff8807fa5d0000 ffff8807fc10ffd8
[ 348.206699] ffff8807fc10ffd8 ffff8807fc10ffd8 ffff880803542ea0 ffff8807fa5d0000
[ 348.207563] ffff8807f725de40 ffff8807fa5d0000 ffff8807fa5d0000 ffff8807fa5d0000
[ 348.208423] Call Trace:
[ 348.209270] [<ffffffff81496df4>] schedule+0x24/0x70
[ 348.210124] [<ffffffff81097aad>] __refrigerator+0x4d/0x140
[ 348.210979] [<ffffffff810a2ba5>] futex_wait_queue_me+0x125/0x140
[ 348.211838] [<ffffffff810a3381>] futex_wait+0x181/0x290
[ 348.212691] [<ffffffff810a4e3c>] do_futex+0x11c/0xb30
[ 348.213545] [<ffffffff810a58e3>] SyS_futex+0x93/0x1a0
[ 348.214389] [<ffffffff81075ba4>] ? finish_task_switch+0x44/0xd0
[ 348.215229] [<ffffffff81079572>] ? schedule_tail+0x22/0xa0
[ 348.216063] [<ffffffff81499152>] system_call_fastpath+0x16/0x1b
[ 348.216907] Sched Debug Version: v0.10, 3.11.0-rc2 #1
[ 348.217736] ktime : 347737.351160
[ 348.218572] sched_clk : 348216.906329
[ 348.219406] cpu_clk : 348216.906356
[ 348.220232] jiffies : 4295015036
[ 348.221053] sched_clock_stable : 1
[ 348.221871]
[ 348.222674] sysctl_sched
[ 348.223478] .sysctl_sched_latency : 24.000000
[ 348.345542] .nr_running : 0
[ 348.346103] .load : 0
[ 348.346660] .runnable_load_avg : 0
[ 348.347219] .blocked_load_avg : 0
[ 348.347774] .tg_load_contrib : 0
[ 348.348327] .tg_runnable_contrib : 0
[ 348.348878] .tg_load_avg : 0
[ 348.349429] .tg->runnable_avg : 5
[ 348.349985] .avg->runnable_avg_sum : 36
[ 348.350539] .avg->runnable_avg_period : 48194
[ 348.351092]
[ 348.351092] rt_rq[1]:/system/systemd-hibernate.service
[ 348.352186] .rt_nr_running : 0
[ 348.352747] .rt_throttled : 0
[ 348.353307] .rt_time : 0.000000
[ 348.353867] .rt_runtime : 0.000000
[ 348.354421]
[ 348.354421] rt_rq[1]:/system/bluetooth.service
[ 348.355507] .rt_nr_running : 0
[ 348.356066] .rt_throttled : 0
[ 348.356625] .rt_time : 0.000000
[ 348.357183] .rt_runtime : 0.000000
[ 348.357740]
[ 348.357740] rt_rq[1]:/system/udisks2.service
[ 348.358841] .rt_nr_running : 0
[ 348.359406] .rt_throttled : 0
[ 348.359972] .rt_time : 0.000000
[ 348.360540] .rt_runtime : 0.000000
[ 348.361108]
[ 348.361108] rt_rq[1]:/system/polkit.service
[ 348.362228] .rt_nr_running : 0
[ 348.362801] .rt_throttled : 0
[ 348.363375] .rt_time : 0.000000
[ 348.363948] .rt_runtime : 0.000000
[ 348.364521]
[ 348.364521] rt_rq[1]:/system/upower.service
[ 348.365605] .rt_nr_running : 0
[ 348.366130] .rt_throttled : 0
[ 348.366657] .rt_time : 0.000000
[ 348.367179] .rt_runtime : 0.000000
[ 348.367702]
[ 348.367702] rt_rq[1]:/system/postfix.service/control
[ 348.368740] .rt_nr_running : 0
[ 348.369269] .rt_throttled : 0
[ 348.369799] .rt_time : 0.000000
[ 348.370323] .rt_runtime : 0.000000
[ 348.370844]
[ 348.370844] rt_rq[1]:/system/sshd.service
[ 348.371876] .rt_nr_running : 0
[ 348.372408] .rt_throttled : 0
[ 348.372946] .rt_time : 0.000000
[ 348.373489] .rt_runtime : 0.000000
[ 348.374028]
[ 348.374028] rt_rq[1]:/system/postfix.service
[ 348.375095] .rt_nr_running : 0
[ 348.375641] .rt_throttled : 0
[ 348.376184] .rt_time : 0.000000
[ 348.376732] .rt_runtime : 0.000000
[ 348.377276]
[ 348.377276] rt_rq[1]:/system/cron.service
[ 348.378354] .rt_nr_running : 0
[ 348.378900] .rt_throttled : 0
[ 348.379447] .rt_time : 0.000000
[ 348.379994] .rt_runtime : 0.000000
[ 348.380541]
[ 348.380541] rt_rq[1]:/system/xdm.service
[ 348.381614] .rt_nr_running : 0
[ 348.382163] .rt_throttled : 0
[ 348.382714] .rt_time : 0.000000
[ 348.383264] .rt_runtime : 0.000000
[ 348.383811]
[ 348.383811] rt_rq[1]:/system/dbus.service
[ 348.384893] .rt_nr_running : 0
[ 348.385448] .rt_throttled : 0
[ 348.386000] .rt_time : 0.000000
[ 348.386554] .rt_runtime : 0.000000
[ 348.387105]
[ 348.387105] rt_rq[1]:/system/getty@.service/tty1
[ 348.388188] .rt_nr_running : 0
[ 348.388735] .rt_throttled : 0
[ 348.389284] .rt_time : 0.000000
[ 348.389834] .rt_runtime : 0.000000
[ 348.390385]
[ 348.390385] rt_rq[1]:/system/getty@.service
[ 348.391467] .rt_nr_running : 0
[ 348.392015] .rt_throttled : 0
[ 348.392562] .rt_time : 0.000000
[ 348.393112] .rt_runtime : 0.000000
[ 348.393661]
[ 348.393661] rt_rq[1]:/system/systemd-logind.service
[ 348.394744] .rt_nr_running : 0
[ 348.395291] .rt_throttled : 0
[ 348.395836] .rt_time : 0.000000
[ 348.396385] .rt_runtime : 0.000000
[ 348.396934]
[ 348.396934] rt_rq[1]:/system/rsyslog.service
[ 348.398015] .rt_nr_running : 0
[ 348.398564] .rt_throttled : 0
[ 348.399110] .rt_time : 0.000000
[ 348.399659] .rt_runtime : 0.000000
[ 348.400211]
[ 348.400211] rt_rq[1]:/system/haveged.service
[ 348.401292] .rt_nr_running : 0
[ 348.401842] .rt_throttled : 0
[ 348.402390] .rt_time : 0.000000
[ 348.402940] .rt_runtime : 0.000000
[ 348.403487]
[ 348.403487] rt_rq[1]:/system/systemd-fsck@.service
[ 348.404567] .rt_nr_running : 0
[ 348.405111] .rt_throttled : 0
[ 348.405656] .rt_time : 0.000000
[ 348.406202] .rt_runtime : 0.000000
[ 348.406750]
[ 348.406750] rt_rq[1]:/system/systemd-udevd.service
[ 348.407831] .rt_nr_running : 0
[ 348.408379] .rt_throttled : 0
[ 348.408926] .rt_time : 0.000000
[ 348.409475] .rt_runtime : 0.000000
[ 348.410024]
[ 348.410024] rt_rq[1]:/system/systemd-journald.service
[ 348.411110] .rt_nr_running : 0
[ 348.411659] .rt_throttled : 0
[ 348.412207] .rt_time : 0.000000
[ 348.412756] .rt_runtime : 0.000000
[ 348.413308]
[ 348.413308] rt_rq[1]:/system
[ 348.414385] .rt_nr_running : 0
[ 348.414931] .rt_throttled : 0
[ 348.415473] .rt_time : 0.000000
[ 348.416019] .rt_runtime : 0.000000
[ 348.416564]
[ 348.416564] rt_rq[1]:/
[ 348.417627] .rt_nr_running : 0
[ 348.418163] .rt_throttled : 0
[ 348.418700] .rt_time : 0.000000
[ 348.419240] .rt_runtime : 950.000000
[ 348.419782]
[ 348.419782] runnable tasks:
[ 348.419782] task PID tree-key switches prio exec-runtime sum-exec sum-sleep
[ 348.419782] ----------------------------------------------------------------------------------------------------------
[ 348.421983]
[ 348.422555] cpu#2, 2394.479 MHz
[ 348.423140] .nr_running : 0
[ 348.423729] .load : 0
[ 348.424313] .nr_switches : 46347
[ 348.424893] .nr_load_updates : 12960
[ 348.425473] .nr_uninterruptible : -42
[ 348.426053] .next_balance : 4295.014754
[ 348.426641] .curr->pid : 0
[ 348.427228] .clock : 347934.367461
[ 348.427814] .cpu_load[0] : 0
[ 348.428394] .cpu_load[1] : 0
[ 348.552446] .rt_nr_running : 0
[ 348.552973] .rt_throttled : 0
[ 348.636728] .rt_time : 0.000000
[ 348.554024] .rt_runtime : 0.000000
[ 348.560864]
[ 348.560864] rt_rq[3]:/system/postfix.service
[ 348.561921] .rt_nr_running : 0
[ 348.562464] .rt_throttled : 0
[ 348.780964] .rt_nr_running : 0
[ 348.563556] .rt_runtime : 0.000000
[ 348.564097]
[ 348.564097] rt_rq[3]:/system/cron.service
[ 348.566793] .rt_runtime : 0.000000
[ 348.567332]
[ 348.567332] rt_rq[3]:/system/xdm.service
[ 348.568396] .rt_nr_running : 0
[ 348.568941] .rt_throttled : 0
[ 348.570035] .rt_runtime : 0.000000
[ 348.570581]
[ 348.570581] rt_rq[3]:/system/dbus.service
[ 348.571659] .rt_nr_running : 0
[ 348.803324] .cpu_load[4] : 0
[ 348.573864]
[ 348.573864] rt_rq[3]:/system/getty@.service/tty1
[ 348.576024] .rt_time : 0.000000
[ 348.576568] .rt_runtime : 0.000000
[ 348.578181] .rt_nr_running : 0
[ 348.578722] .rt_throttled : 0
[ 348.579263] .rt_time : 0.000000
[ 348.580349]
[ 348.580349] rt_rq[3]:/system/systemd-logind.service
[ 348.583049] .rt_runtime : 0.000000
[ 348.583592]
[ 348.583592] rt_rq[3]:/system/rsyslog.service
[ 348.586294] .rt_runtime : 0.000000
[ 348.586841]
[ 348.586841] rt_rq[3]:/system/haveged.service
[ 348.588455] .rt_throttled : 0
[ 348.588998] .rt_time : 0.000000
[ 348.590087]
[ 348.590087] rt_rq[3]:/system/systemd-fsck@.service
[ 348.591164] .rt_nr_running : 0
[ 348.591706] .rt_throttled : 0
[ 348.592247] .rt_time : 0.000000
[ 348.592791] .rt_runtime : 0.000000
[ 348.593335]
[ 348.593335] rt_rq[3]:/system/systemd-udevd.service
[ 348.594409] .rt_nr_running : 0
[ 348.594956] .rt_throttled : 0
[ 348.596046] .rt_runtime : 0.000000
[ 348.596592]
[ 348.596592] rt_rq[3]:/system/systemd-journald.service
[ 348.597675] .rt_nr_running : 0
[ 348.598224] .rt_throttled : 0
[ 348.598769] .rt_time : 0.000000
[ 348.599317] .rt_runtime : 0.000000
[ 348.599868]
[ 348.599868] rt_rq[3]:/system
[ 348.600942] .rt_nr_running : 0
[ 348.601485] .rt_throttled : 0
[ 348.602027] .rt_time : 0.000000
[ 348.602571] .rt_runtime : 0.000000
[ 348.603115]
[ 348.603115] rt_rq[3]:/
[ 348.604181] .rt_nr_running : 0
[ 348.604715] .rt_throttled : 0
[ 348.605252] .rt_time : 0.000000
[ 348.605791] .rt_runtime : 950.000000
[ 348.606331]
[ 348.606331] runnable tasks:
[ 348.606331] task PID tree-key switches prio exec-runtime sum-exec sum-sleep
[ 348.606331] ----------------------------------------------------------------------------------------------------------
[ 348.609111] cpu#4, 2394.479 MHz
[ 348.609693] .nr_running : 0
[ 348.610281] .load : 0
[ 348.610866] .nr_switches : 26395
[ 348.611446] .nr_load_updates : 9172
[ 348.612608] .next_balance : 4295.011756
[ 348.613786] .clock : 348434.750881
[ 348.614956] .cpu_load[1] : 0
[ 348.615536] .cpu_load[2] : 0
[ 348.616690] .cpu_load[4] : 0
[ 348.617263] .yld_count : 2324
[ 348.618398] .sched_goidle : 11227
[ 348.619530] .ttwu_count : 16564
[ 348.620668]
[ 348.620668] cfs_rq[4]:/
[ 348.621770] .exec_clock : 2510.563054
[ 348.624032] .spread : 0.000000
[ 348.624597] .spread0 : 673.526556
[ 348.626834] .runnable_load_avg : 0
[ 348.627389] .blocked_load_avg : 0
[ 348.629587] .tg->runnable_avg : 4
[ 348.630138] .avg->runnable_avg_sum : 0
[ 348.632321] .rt_nr_running : 0
[ 348.633430] .rt_time : 0.000000
[ 348.763005] .rt_runtime : 0.000000
[ 348.769521] .rt_runtime : 0.000000
[ 348.776606]
[ 348.776606] rt_rq[5]:/system/systemd-fsck@.service
[ 348.777683] .rt_nr_running : 0
[ 348.782614] .rt_runtime : 0.000000
[ 348.785355] .rt_time : 0.000000
[ 348.787539] .rt_nr_running : 0
[ 348.788081] .rt_throttled : 0
[ 348.792389] .rt_runtime : 950.000000
[ 348.796880] .load : 0
[ 348.797467] .nr_switches : 20163
[ 348.963314] .rt_runtime : 0.000000
[ 348.966042] .rt_time : 0.000000
[ 348.968773] .rt_throttled : 0
[ 348.971503] .rt_nr_running : 0
[ 348.976949]
[ 348.976949] rt_rq[7]:/
[ 348.979618] .rt_runtime : 950.000000
[ 348.980156]
[ 348.980156] runnable tasks:
[ 348.980156] task PID tree-key switches prio exec-runtime sum-exec sum-sleep
[ 348.980156] ----------------------------------------------------------------------------------------------------------
[ 348.982352]

--
MfG,

Michael Leun

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