Re: [ANNOUNCE/RFC] Really Fair Scheduler
From: Mike Galbraith
Date: Tue Sep 11 2007 - 02:27:56 EST
On Tue, 2007-09-11 at 01:23 +0200, Roman Zippel wrote:
> Hi,
>
> On Sat, 8 Sep 2007, Mike Galbraith wrote:
>
> > > On Sun, 2 Sep 2007, Ingo Molnar wrote:
> > >
> > > Below is a patch updated against the latest git tree, no major changes.
> >
> > Interesting, I see major behavioral changes.
> >
> > I still see an aberration with fairtest2. On startup, the hog component
> > will consume 100% cpu for a bit, then the sleeper shows up. This
> > doesn't always happen, but happens quite often.
>
> I found the problem for this. What basically happened is that a task that
> hasn't been running for a second is enqueued first on an idle queue and it
> keeps that advantage compared to tasks that had been running more recently
> until it catched up. The new version will now remember where the last task
> left off and use that for that first task which restarts the queue. As a
> side effect it also limits the bonus a task gets if multiple tasks are
> woken at the same time.
I still see the fairtest2 sleeper startup anomaly. Sometimes it starts
up normally, others the sleeper is a delayed. Seems to require idle
time to trigger worst case startup delay.
14854 root 20 0 1568 468 384 R 52 0.0 0:07.50 1 fairtest2
14855 root 20 0 1568 112 28 R 45 0.0 0:00.46 1 fairtest2
Everything else still seems fine. Boot-time warnings:
[ 113.504259] audit(1189488395.753:2): audit_pid=5403 old=0 by auid=4294967295
[ 114.077979] IA-32 Microcode Update Driver: v1.14a <tigran@xxxxxxxxxxxxxxxxxxxx>
[ 116.281216] 4,f70355a0(5633,b,d1cef00): 32af5bc18d4,31b49210000,f70355a0(5633,b,d1cef00),2
[ 116.298004] WARNING: at kernel/sched_norm.c:271 verify_queue()
[ 116.312380] [<c0105188>] show_trace_log_lvl+0x1a/0x30
[ 116.326193] [<c0105d83>] show_trace+0x12/0x14
[ 116.339270] [<c0105d9b>] dump_stack+0x16/0x18
[ 116.352199] [<c011e61a>] verify_queue+0x2f8/0x3fb
[ 116.365406] [<c011e8a3>] enqueue_entity+0x186/0x21b
[ 116.378571] [<c0123344>] enqueue_task_fair+0x2f/0x31
[ 116.391545] [<c011d043>] enqueue_task+0xd/0x18
[ 116.403833] [<c011dffe>] activate_task+0x20/0x2d
[ 116.416174] [<c0120336>] __migrate_task+0x9a/0xc4
[ 116.428490] [<c0122d0b>] migration_thread+0x175/0x220
[ 116.441159] [<c01393f7>] kthread+0x37/0x59
[ 116.452824] [<c0104dd3>] kernel_thread_helper+0x7/0x14
[ 116.465582] =======================
[ 116.476497] 4,f70355a0(5633,b,d1cef00): 32af5bc18d4,31b496c0000,f7e1a5a0(4179,3b0,232aaf800),4
[ 116.492899] WARNING: at kernel/sched_norm.c:271 verify_queue()
[ 116.506459] [<c0105188>] show_trace_log_lvl+0x1a/0x30
[ 116.519302] [<c0105d83>] show_trace+0x12/0x14
[ 116.531313] [<c0105d9b>] dump_stack+0x16/0x18
[ 116.543334] [<c011e61a>] verify_queue+0x2f8/0x3fb
[ 116.555710] [<c011ea1e>] update_curr+0xe6/0x102
[ 116.567654] [<c011ebb9>] task_tick_fair+0x3f/0x1f2
[ 116.579657] [<c01223f3>] scheduler_tick+0x18d/0x2d5
[ 116.591808] [<c012fa9d>] update_process_times+0x44/0x63
[ 116.604400] [<c014179e>] tick_sched_timer+0x5c/0xbd
[ 116.616741] [<c013cbe1>] hrtimer_interrupt+0x12c/0x1a0
[ 116.629230] [<c01173f0>] smp_apic_timer_interrupt+0x57/0x88
[ 116.642047] [<c0104c50>] apic_timer_interrupt+0x28/0x30
[ 116.654692] [<c011f119>] __wake_up+0x3a/0x42
[ 116.666158] [<c03f02d3>] sock_def_readable+0x6e/0x70
[ 116.678143] [<c046195c>] unix_stream_sendmsg+0x19d/0x32c
[ 116.690520] [<c03ebf11>] sock_aio_write+0x104/0x123
[ 116.702479] [<c0178c60>] do_sync_readv_writev+0xb4/0xea
[ 116.714907] [<c0179318>] do_readv_writev+0xbb/0x1d4
[ 116.727074] [<c0179470>] vfs_writev+0x3f/0x51
[ 116.738800] [<c01798b4>] sys_writev+0x3d/0x64
[ 116.750154] [<c0104182>] sysenter_past_esp+0x5f/0x85
[ 116.761932] =======================
[ 116.772092] 4,f70355a0(5633,b,d1cef00): 32af5bc18d4,31b496c0000,f793bae0(4010,3b0,232aaf800),3
[ 116.787811] WARNING: at kernel/sched_norm.c:271 verify_queue()
[ 116.800930] [<c0105188>] show_trace_log_lvl+0x1a/0x30
[ 116.813437] [<c0105d83>] show_trace+0x12/0x14
[ 116.825164] [<c0105d9b>] dump_stack+0x16/0x18
[ 116.836828] [<c011e61a>] verify_queue+0x2f8/0x3fb
[ 116.848910] [<c0123391>] dequeue_task_fair+0x4b/0x2d3
[ 116.861390] [<c011d05b>] dequeue_task+0xd/0x18
[ 116.873193] [<c011dfa1>] deactivate_task+0x20/0x3a
[ 116.885335] [<c011e0aa>] balance_tasks+0x9f/0x140
[ 116.897357] [<c011e1ab>] load_balance_fair+0x60/0x7d
[ 116.909627] [<c011d141>] move_tasks+0x5b/0x77
[ 116.921200] [<c0120c0b>] load_balance+0xd3/0x2ab
[ 116.932786] [<c0123fca>] run_rebalance_domains+0x89/0x319
[ 116.944998] [<c012bbc2>] __do_softirq+0x73/0xe0
[ 116.956238] [<c0106bc3>] do_softirq+0x6e/0xc1
[ 116.967316] =======================
[ 116.977554] 3,f70355a0(5633,b,d1cef00): 32af5bc18d4,31b2ded0000,f793bae0(4010,3b0,232aaf800),1
[ 116.993315] WARNING: at kernel/sched_norm.c:271 verify_queue()
[ 117.006408] [<c0105188>] show_trace_log_lvl+0x1a/0x30
[ 117.018914] [<c0105d83>] show_trace+0x12/0x14
[ 117.030667] [<c0105d9b>] dump_stack+0x16/0x18
[ 117.042332] [<c011e61a>] verify_queue+0x2f8/0x3fb
[ 117.054335] [<c01234ec>] dequeue_task_fair+0x1a6/0x2d3
[ 117.066781] [<c011d05b>] dequeue_task+0xd/0x18
[ 117.078429] [<c011dfa1>] deactivate_task+0x20/0x3a
[ 117.090380] [<c011e0aa>] balance_tasks+0x9f/0x140
[ 117.102203] [<c011e1ab>] load_balance_fair+0x60/0x7d
[ 117.114283] [<c011d141>] move_tasks+0x5b/0x77
[ 117.125689] [<c0120c0b>] load_balance+0xd3/0x2ab
[ 117.137320] [<c0123fca>] run_rebalance_domains+0x89/0x319
[ 117.149773] [<c012bbc2>] __do_softirq+0x73/0xe0
[ 117.161343] [<c0106bc3>] do_softirq+0x6e/0xc1
[ 117.172724] =======================
[ 117.183276] 3,f70355a0(5633,b,d1cef00): 32af5bc18d4,31b2ded0000,f7035ae0(5612,3b0,232aaf800),3
[ 117.199354] WARNING: at kernel/sched_norm.c:271 verify_queue()
[ 117.212692] [<c0105188>] show_trace_log_lvl+0x1a/0x30
[ 117.225188] [<c0105d83>] show_trace+0x12/0x14
[ 117.236680] [<c0105d9b>] dump_stack+0x16/0x18
[ 117.247991] [<c011e61a>] verify_queue+0x2f8/0x3fb
[ 117.259717] [<c0123391>] dequeue_task_fair+0x4b/0x2d3
[ 117.271903] [<c011d05b>] dequeue_task+0xd/0x18
[ 117.283414] [<c011dfa1>] deactivate_task+0x20/0x3a
[ 117.295253] [<c011e0aa>] balance_tasks+0x9f/0x140
[ 117.307030] [<c011e1ab>] load_balance_fair+0x60/0x7d
[ 117.319101] [<c011d141>] move_tasks+0x5b/0x77
[ 117.330543] [<c0120c0b>] load_balance+0xd3/0x2ab
[ 117.342243] [<c0123fca>] run_rebalance_domains+0x89/0x319
[ 117.354801] [<c012bbc2>] __do_softirq+0x73/0xe0
[ 117.366493] [<c0106bc3>] do_softirq+0x6e/0xc1
[ 117.377949] =======================
[ 117.388461] 8,f70355a0(5633,b,d1cef00): 32af5bc18d4,31c54050000,f70355a0(5633,b,d1cef00),2
[ 117.404131] WARNING: at kernel/sched_norm.c:271 verify_queue()
[ 117.417451] [<c0105188>] show_trace_log_lvl+0x1a/0x30
[ 117.429922] [<c0105d83>] show_trace+0x12/0x14
[ 117.441387] [<c0105d9b>] dump_stack+0x16/0x18
[ 117.452681] [<c011e61a>] verify_queue+0x2f8/0x3fb
[ 117.464372] [<c011e8a3>] enqueue_entity+0x186/0x21b
[ 117.476324] [<c0123344>] enqueue_task_fair+0x2f/0x31
[ 117.488346] [<c011d043>] enqueue_task+0xd/0x18
[ 117.499760] [<c011dffe>] activate_task+0x20/0x2d
[ 117.511365] [<c011e0bf>] balance_tasks+0xb4/0x140
[ 117.523046] [<c011e1ab>] load_balance_fair+0x60/0x7d
[ 117.535015] [<c011d141>] move_tasks+0x5b/0x77
[ 117.546335] [<c0120c0b>] load_balance+0xd3/0x2ab
[ 117.557923] [<c0123fca>] run_rebalance_domains+0x89/0x319
[ 117.570385] [<c012bbc2>] __do_softirq+0x73/0xe0
[ 117.581929] [<c0106bc3>] do_softirq+0x6e/0xc1
[ 117.593248] =======================
[ 117.603676] 8,f70355a0(5633,b,d1cef00): 32af5bc18d4,31c54050000,dfcd4060(939,135,b82da880),4
[ 117.619422] WARNING: at kernel/sched_norm.c:271 verify_queue()
[ 117.632410] [<c0105188>] show_trace_log_lvl+0x1a/0x30
[ 117.644554] [<c0105d83>] show_trace+0x12/0x14
[ 117.655838] [<c0105d9b>] dump_stack+0x16/0x18
[ 117.667078] [<c011e61a>] verify_queue+0x2f8/0x3fb
[ 117.678770] [<c011ea1e>] update_curr+0xe6/0x102
[ 117.690245] [<c011ebb9>] task_tick_fair+0x3f/0x1f2
[ 117.701972] [<c01223f3>] scheduler_tick+0x18d/0x2d5
[ 117.713818] [<c012fa9d>] update_process_times+0x44/0x63
[ 117.726056] [<c014179e>] tick_sched_timer+0x5c/0xbd
[ 117.737964] [<c013cbe1>] hrtimer_interrupt+0x12c/0x1a0
[ 117.750175] [<c01173f0>] smp_apic_timer_interrupt+0x57/0x88
[ 117.762890] [<c0104c50>] apic_timer_interrupt+0x28/0x30
[ 117.775290] [<c0123fca>] run_rebalance_domains+0x89/0x319
[ 117.787875] [<c012bbc2>] __do_softirq+0x73/0xe0
[ 117.799549] [<c0106bc3>] do_softirq+0x6e/0xc1
[ 117.811040] =======================
[ 117.821594] 8,f70355a0(5633,b,d1cef00): 32af5bc18d4,32397330000,dfc46060(3936,3b0,232aaf800),3
[ 117.837448] WARNING: at kernel/sched_norm.c:271 verify_queue()
[ 117.850404] [<c0105188>] show_trace_log_lvl+0x1a/0x30
[ 117.862659] [<c0105d83>] show_trace+0x12/0x14
[ 117.874184] [<c0105d9b>] dump_stack+0x16/0x18
[ 117.885711] [<c011e61a>] verify_queue+0x2f8/0x3fb
[ 117.897601] [<c0123391>] dequeue_task_fair+0x4b/0x2d3
[ 117.909865] [<c011d05b>] dequeue_task+0xd/0x18
[ 117.921487] [<c011dfa1>] deactivate_task+0x20/0x3a
[ 117.933509] [<c011e0aa>] balance_tasks+0x9f/0x140
[ 117.945443] [<c011e1ab>] load_balance_fair+0x60/0x7d
[ 117.957671] [<c011d141>] move_tasks+0x5b/0x77
[ 117.969259] [<c0120c0b>] load_balance+0xd3/0x2ab
[ 117.981115] [<c0123fca>] run_rebalance_domains+0x89/0x319
[ 117.993846] [<c012bbc2>] __do_softirq+0x73/0xe0
[ 118.005658] [<c0106bc3>] do_softirq+0x6e/0xc1
[ 118.017255] =======================
[ 118.027946] 7,f70355a0(5633,b,d1cef00): 32af5bc18d4,3238da60000,dfc46060(3936,3b0,232aaf800),1
[ 118.044138] WARNING: at kernel/sched_norm.c:271 verify_queue()
[ 118.057413] [<c0105188>] show_trace_log_lvl+0x1a/0x30
[ 118.069850] [<c0105d83>] show_trace+0x12/0x14
[ 118.081438] [<c0105d9b>] dump_stack+0x16/0x18
[ 118.092983] [<c011e61a>] verify_queue+0x2f8/0x3fb
[ 118.104976] [<c01234ec>] dequeue_task_fair+0x1a6/0x2d3
[ 118.117448] [<c011d05b>] dequeue_task+0xd/0x18
[ 118.129182] [<c011dfa1>] deactivate_task+0x20/0x3a
[ 118.141272] [<c011e0aa>] balance_tasks+0x9f/0x140
[ 118.153258] [<c011e1ab>] load_balance_fair+0x60/0x7d
[ 118.165505] [<c011d141>] move_tasks+0x5b/0x77
[ 118.177084] [<c0120c0b>] load_balance+0xd3/0x2ab
[ 118.188888] [<c0123fca>] run_rebalance_domains+0x89/0x319
[ 118.201507] [<c012bbc2>] __do_softirq+0x73/0xe0
[ 118.213207] [<c0106bc3>] do_softirq+0x6e/0xc1
[ 118.224673] =======================
[ 118.235200] 7,f70355a0(5633,b,d1cef00): 32af5bc18d4,3238da60000,f791f060(5607,3b0,232aaf800),3
[ 118.251260] WARNING: at kernel/sched_norm.c:271 verify_queue()
[ 118.264614] [<c0105188>] show_trace_log_lvl+0x1a/0x30
[ 118.277128] [<c0105d83>] show_trace+0x12/0x14
[ 118.288631] [<c0105d9b>] dump_stack+0x16/0x18
[ 118.299967] [<c011e61a>] verify_queue+0x2f8/0x3fb
[ 118.311709] [<c0123391>] dequeue_task_fair+0x4b/0x2d3
[ 118.323920] [<c011d05b>] dequeue_task+0xd/0x18
[ 118.335457] [<c011dfa1>] deactivate_task+0x20/0x3a
[ 118.347331] [<c011e0aa>] balance_tasks+0x9f/0x140
[ 118.359125] [<c011e1ab>] load_balance_fair+0x60/0x7d
[ 118.371206] [<c011d141>] move_tasks+0x5b/0x77
[ 118.382656] [<c0120c0b>] load_balance+0xd3/0x2ab
[ 118.394366] [<c0123fca>] run_rebalance_domains+0x89/0x319
[ 118.406932] [<c012bbc2>] __do_softirq+0x73/0xe0
[ 118.418632] [<c0106bc3>] do_softirq+0x6e/0xc1
[ 118.430088] =======================
[ 118.661317] NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory
[ 118.841985] 3,f7913ae0(5648,b,d1cef00): 30aea0eef39,2dc5dc40000,f7913ae0(5648,b,d1cef00),5
[ 118.876767] WARNING: at kernel/sched_norm.c:438 entity_tick()
[ 118.908572] [<c0105188>] show_trace_log_lvl+0x1a/0x30
[ 118.939760] [<c0105d83>] show_trace+0x12/0x14
[ 118.970122] [<c0105d9b>] dump_stack+0x16/0x18
[ 119.000496] [<c011ed0e>] task_tick_fair+0x194/0x1f2
[ 119.031508] [<c01223f3>] scheduler_tick+0x18d/0x2d5
[ 119.062350] [<c012fa9d>] update_process_times+0x44/0x63
[ 119.093732] [<c014179e>] tick_sched_timer+0x5c/0xbd
[ 119.124944] [<c013cbe1>] hrtimer_interrupt+0x12c/0x1a0
[ 119.156611] [<c01173f0>] smp_apic_timer_interrupt+0x57/0x88
[ 119.188954] [<c0104c50>] apic_timer_interrupt+0x28/0x30
[ 119.221063] [<c0165c22>] __do_fault+0x3d/0x363
[ 119.252382] [<c0167288>] handle_mm_fault+0x11b/0x6a8
[ 119.284202] [<c011c158>] do_page_fault+0x3ed/0x615
[ 119.315726] [<c04d2bba>] error_code+0x72/0x78
[ 119.346869] =======================
[ 119.408744] 3,f7dceae0(5657,b,d1cef00): 333cd7dba80,3291a150000,f7dceae0(5657,b,d1cef00),5
[ 119.424943] WARNING: at kernel/sched_norm.c:438 entity_tick()
[ 119.438312] [<c0105188>] show_trace_log_lvl+0x1a/0x30
[ 119.451068] [<c0105d83>] show_trace+0x12/0x14
[ 119.463097] [<c0105d9b>] dump_stack+0x16/0x18
[ 119.475119] [<c011ed0e>] task_tick_fair+0x194/0x1f2
[ 119.487694] [<c01223f3>] scheduler_tick+0x18d/0x2d5
[ 119.500217] [<c012fa9d>] update_process_times+0x44/0x63
[ 119.513155] [<c014179e>] tick_sched_timer+0x5c/0xbd
[ 119.525773] [<c013cbe1>] hrtimer_interrupt+0x12c/0x1a0
[ 119.538696] [<c01173f0>] smp_apic_timer_interrupt+0x57/0x88
[ 119.552119] [<c0104c50>] apic_timer_interrupt+0x28/0x30
[ 119.565221] =======================
[ 119.650421] NFSD: starting 90-second grace period
[ 120.632062] 2,f7335060(5712,b,d1cef00): 35ac9c90eea,ffffe84b40460000,f7335060(5712,b,d1cef00),5
[ 120.652839] WARNING: at kernel/sched_norm.c:438 entity_tick()
[ 120.670841] [<c0105188>] show_trace_log_lvl+0x1a/0x30
[ 120.688353] [<c0105d83>] show_trace+0x12/0x14
[ 120.705102] [<c0105d9b>] dump_stack+0x16/0x18
[ 120.721703] [<c011ed0e>] task_tick_fair+0x194/0x1f2
[ 120.738851] [<c01223f3>] scheduler_tick+0x18d/0x2d5
[ 120.755914] [<c012fa9d>] update_process_times+0x44/0x63
[ 120.773311] [<c014179e>] tick_sched_timer+0x5c/0xbd
[ 120.790296] [<c013cbe1>] hrtimer_interrupt+0x12c/0x1a0
[ 120.807555] [<c01173f0>] smp_apic_timer_interrupt+0x57/0x88
[ 120.825351] [<c0104c50>] apic_timer_interrupt+0x28/0x30
[ 120.842811] =======================
[ 120.858451] 2,f7335060(5712,b,d1cef00): 35aca70e122,ffffe84b40e90000,f7335060(5712,b,d1cef00),5
[ 120.879922] WARNING: at kernel/sched_norm.c:438 entity_tick()
[ 120.898237] [<c0105188>] show_trace_log_lvl+0x1a/0x30
[ 120.915750] [<c0105d83>] show_trace+0x12/0x14
[ 120.932336] [<c0105d9b>] dump_stack+0x16/0x18
[ 120.948858] [<c011ed0e>] task_tick_fair+0x194/0x1f2
[ 120.966070] [<c01223f3>] scheduler_tick+0x18d/0x2d5
[ 120.983249] [<c012fa9d>] update_process_times+0x44/0x63
[ 121.000839] [<c014179e>] tick_sched_timer+0x5c/0xbd
[ 121.018090] [<c013cbe1>] hrtimer_interrupt+0x12c/0x1a0
[ 121.035610] [<c01173f0>] smp_apic_timer_interrupt+0x57/0x88
[ 121.053627] [<c0104c50>] apic_timer_interrupt+0x28/0x30
[ 121.071256] =======================
[ 121.087023] 2,f7335060(5712,b,d1cef00): 35acb18b35a,ffffe84b418c0000,f7335060(5712,b,d1cef00),5
[ 121.108549] WARNING: at kernel/sched_norm.c:438 entity_tick()
[ 121.127230] [<c0105188>] show_trace_log_lvl+0x1a/0x30
[ 121.145279] [<c0105d83>] show_trace+0x12/0x14
[ 121.162114] [<c0105d9b>] dump_stack+0x16/0x18
[ 121.178420] [<c011ed0e>] task_tick_fair+0x194/0x1f2
[ 121.195216] [<c01223f3>] scheduler_tick+0x18d/0x2d5
[ 121.211843] [<c012fa9d>] update_process_times+0x44/0x63
[ 121.228703] [<c014179e>] tick_sched_timer+0x5c/0xbd
[ 121.245445] [<c013cbe1>] hrtimer_interrupt+0x12c/0x1a0
[ 121.262515] [<c01173f0>] smp_apic_timer_interrupt+0x57/0x88
[ 121.279696] [<c0104c50>] apic_timer_interrupt+0x28/0x30
[ 121.296219] =======================
[ 121.310817] 2,f7335060(5712,b,d1cef00): 35acbc08592,ffffe84b422e0000,f7335060(5712,b,d1cef00),5
[ 121.331338] WARNING: at kernel/sched_norm.c:438 entity_tick()
[ 121.349145] [<c0105188>] show_trace_log_lvl+0x1a/0x30
[ 121.366481] [<c0105d83>] show_trace+0x12/0x14
[ 121.383035] [<c0105d9b>] dump_stack+0x16/0x18
[ 121.399470] [<c011ed0e>] task_tick_fair+0x194/0x1f2
[ 121.416436] [<c01223f3>] scheduler_tick+0x18d/0x2d5
[ 121.433297] [<c012fa9d>] update_process_times+0x44/0x63
[ 121.450497] [<c014179e>] tick_sched_timer+0x5c/0xbd
[ 121.467300] [<c013cbe1>] hrtimer_interrupt+0x12c/0x1a0
[ 121.484335] [<c01173f0>] smp_apic_timer_interrupt+0x57/0x88
[ 121.501525] [<c0104c50>] apic_timer_interrupt+0x28/0x30
[ 121.518032] =======================
[ 121.532610] 2,f7335060(5712,b,d1cef00): 35acc6857ca,ffffe84b42d10000,f7335060(5712,b,d1cef00),5
[ 121.553097] WARNING: at kernel/sched_norm.c:438 entity_tick()
[ 121.570885] [<c0105188>] show_trace_log_lvl+0x1a/0x30
[ 121.588190] [<c0105d83>] show_trace+0x12/0x14
[ 121.604731] [<c0105d9b>] dump_stack+0x16/0x18
[ 121.621151] [<c011ed0e>] task_tick_fair+0x194/0x1f2
[ 121.638084] [<c01223f3>] scheduler_tick+0x18d/0x2d5
[ 121.654955] [<c012fa9d>] update_process_times+0x44/0x63
[ 121.672143] [<c014179e>] tick_sched_timer+0x5c/0xbd
[ 121.688956] [<c013cbe1>] hrtimer_interrupt+0x12c/0x1a0
[ 121.705988] [<c01173f0>] smp_apic_timer_interrupt+0x57/0x88
[ 121.723180] [<c0104c50>] apic_timer_interrupt+0x28/0x30
[ 121.739686] =======================
[ 121.754270] 3,f7335060(5712,b,d1cef00): 35acd102a0d,ffffe85123590000,f7335060(5712,b,d1cef00),5
[ 121.774772] WARNING: at kernel/sched_norm.c:438 entity_tick()
[ 121.792570] [<c0105188>] show_trace_log_lvl+0x1a/0x30
[ 121.809871] [<c0105d83>] show_trace+0x12/0x14
[ 121.826405] [<c0105d9b>] dump_stack+0x16/0x18
[ 121.842791] [<c011ed0e>] task_tick_fair+0x194/0x1f2
[ 121.859719] [<c01223f3>] scheduler_tick+0x18d/0x2d5
[ 121.876564] [<c012fa9d>] update_process_times+0x44/0x63
[ 121.893738] [<c014179e>] tick_sched_timer+0x5c/0xbd
[ 121.910522] [<c013cbe1>] hrtimer_interrupt+0x12c/0x1a0
[ 121.927532] [<c01173f0>] smp_apic_timer_interrupt+0x57/0x88
[ 121.944700] [<c0104c50>] apic_timer_interrupt+0x28/0x30
[ 121.961179] =======================
[ 121.975739] 2,f7335060(5712,b,d1cef00): 35acdb7fc45,ffffe85306070000,f7335060(5712,b,d1cef00),5
[ 121.996410] WARNING: at kernel/sched_norm.c:438 entity_tick()
[ 122.014189] [<c0105188>] show_trace_log_lvl+0x1a/0x30
[ 122.031484] [<c0105d83>] show_trace+0x12/0x14
[ 122.047999] [<c0105d9b>] dump_stack+0x16/0x18
[ 122.064367] [<c011ed0e>] task_tick_fair+0x194/0x1f2
[ 122.081282] [<c01223f3>] scheduler_tick+0x18d/0x2d5
[ 122.098123] [<c012fa9d>] update_process_times+0x44/0x63
[ 122.115307] [<c014179e>] tick_sched_timer+0x5c/0xbd
[ 122.132098] [<c013cbe1>] hrtimer_interrupt+0x12c/0x1a0
[ 122.149090] [<c01173f0>] smp_apic_timer_interrupt+0x57/0x88
[ 122.166256] [<c0104c50>] apic_timer_interrupt+0x28/0x30
[ 122.182763] =======================
[ 122.197362] 2,f7335060(5712,b,d1cef00): 35ace5fce7d,ffffe85306aa0000,f7335060(5712,b,d1cef00),5
[ 122.217856] WARNING: at kernel/sched_norm.c:438 entity_tick()
[ 122.235637] [<c0105188>] show_trace_log_lvl+0x1a/0x30
[ 122.252929] [<c0105d83>] show_trace+0x12/0x14
[ 122.269437] [<c0105d9b>] dump_stack+0x16/0x18
[ 122.285823] [<c011ed0e>] task_tick_fair+0x194/0x1f2
[ 122.302718] [<c01223f3>] scheduler_tick+0x18d/0x2d5
[ 122.319572] [<c012fa9d>] update_process_times+0x44/0x63
[ 122.336736] [<c014179e>] tick_sched_timer+0x5c/0xbd
[ 122.353530] [<c013cbe1>] hrtimer_interrupt+0x12c/0x1a0
[ 122.370532] [<c01173f0>] smp_apic_timer_interrupt+0x57/0x88
[ 122.387687] [<c0104c50>] apic_timer_interrupt+0x28/0x30
[ 122.404192] =======================
[ 128.411998] [drm] Initialized drm 1.1.0 20060810
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