[Bug 191451] Host hangs when hyperv/pvspinlock are disabled

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=191451

uzytkownik2@gmail.com (uzytkownik2@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Kernel Version|4.7.3-4.9.0                 |4.7.3-4.12.1

--- Comment #4 from uzytkownik2@gmail.com (uzytkownik2@gmail.com) ---
Keeping bug alive:

[62880.118108] INFO: rcu_sched detected stalls on CPUs/tasks:
[62880.118392]  11-...: (32521 GPs behind) idle=870/0/0 softirq=1901624/1901625
fqs=1 
[62880.118691]  (detected by 6, t=2102 jiffies, g=329804, c=329803, q=811)
[62880.119019] Sending NMI from CPU 6 to CPUs 11:
[62880.119045] NMI backtrace for cpu 11 skipped: idling at pc
0xffffffffae71669a
[62880.120028] rcu_sched kthread starved for 2100 jiffies! g329804 c329803 f0x0
RCU_GP_WAIT_FQS(3) ->state=0x1
[62880.120416] rcu_sched       S11456     8      2 0x00000000
[62880.120422] Call Trace:
[62880.120431]  __schedule+0x2c8/0x620
[62880.120434]  schedule+0x44/0x90
[62880.120437]  schedule_timeout+0x110/0x1a0
[62880.120442]  ? del_timer_sync+0x50/0x50
[62880.120445]  ? prepare_to_swait+0x62/0x70
[62880.120450]  rcu_gp_kthread+0x4c8/0x7f0
[62880.120453]  ? rcu_gp_kthread+0x4c8/0x7f0
[62880.120456]  kthread+0x10d/0x140
[62880.120460]  ? _synchronize_rcu_expedited.constprop.78+0x380/0x380
[62880.120462]  ? kthread_park+0x70/0x70
[62880.120466]  ret_from_fork+0x22/0x30
[63134.340912] INFO: rcu_sched detected stalls on CPUs/tasks:
[63134.341355]  11-...: (0 ticks this GP) idle=df0/0/0 softirq=1901625/1901625
fqs=0 
[63134.341813]  (detected by 4, t=2102 jiffies, g=330302, c=330301, q=1024)
[63134.342302] Sending NMI from CPU 4 to CPUs 11:
[63134.342326] NMI backtrace for cpu 11 skipped: idling at pc
0xffffffffae71669a
[63134.343310] rcu_sched kthread starved for 2102 jiffies! g330302 c330301 f0x0
RCU_GP_WAIT_FQS(3) ->state=0x1
[63134.343859] rcu_sched       S11456     8      2 0x00000000
[63134.343865] Call Trace:
[63134.343874]  __schedule+0x2c8/0x620
[63134.343876]  schedule+0x44/0x90
[63134.343879]  schedule_timeout+0x110/0x1a0
[63134.343884]  ? del_timer_sync+0x50/0x50
[63134.343888]  ? prepare_to_swait+0x62/0x70
[63134.343893]  rcu_gp_kthread+0x4c8/0x7f0
[63134.343896]  ? rcu_gp_kthread+0x4c8/0x7f0
[63134.343899]  kthread+0x10d/0x140
[63134.343903]  ? _synchronize_rcu_expedited.constprop.78+0x380/0x380
[63134.343905]  ? kthread_park+0x70/0x70
[63134.343909]  ret_from_fork+0x22/0x30
[64670.826943] INFO: rcu_sched detected stalls on CPUs/tasks:
[64670.827547]  11-...: (3203 GPs behind) idle=8d4/0/0 softirq=1901625/1901625
fqs=1 
[64670.828165]  (detected by 7, t=2102 jiffies, g=333505, c=333504, q=1024)
[64670.828813] Sending NMI from CPU 7 to CPUs 11:
[64670.828845] NMI backtrace for cpu 11 skipped: idling at pc
0xffffffffae71669a
[64670.829821] rcu_sched kthread starved for 2099 jiffies! g333505 c333504 f0x0
RCU_GP_WAIT_FQS(3) ->state=0x1
[64670.830534] rcu_sched       S11456     8      2 0x00000000
[64670.830540] Call Trace:
[64670.830548]  __schedule+0x2c8/0x620
[64670.830551]  schedule+0x44/0x90
[64670.830554]  schedule_timeout+0x110/0x1a0
[64670.830559]  ? del_timer_sync+0x50/0x50
[64670.830562]  ? prepare_to_swait+0x62/0x70
[64670.830566]  rcu_gp_kthread+0x4c8/0x7f0
[64670.830570]  ? rcu_gp_kthread+0x4c8/0x7f0
[64670.830572]  kthread+0x10d/0x140
[64670.830576]  ? _synchronize_rcu_expedited.constprop.78+0x380/0x380
[64670.830578]  ? kthread_park+0x70/0x70
[64670.830582]  ret_from_fork+0x22/0x30
[66220.692488] INFO: rcu_sched detected stalls on CPUs/tasks:
[66220.693249]  11-...: (0 ticks this GP) idle=f24/0/0 softirq=1901625/1901625
fqs=0 
[66220.694020]  (detected by 10, t=2102 jiffies, g=336717, c=336716, q=1140)
[66220.694827] Sending NMI from CPU 10 to CPUs 11:
[66220.694852] NMI backtrace for cpu 11 skipped: idling at pc
0xffffffffae71669a
[66220.695836] rcu_sched kthread starved for 2102 jiffies! g336717 c336716 f0x0
RCU_GP_WAIT_FQS(3) ->state=0x1
[66220.696699] rcu_sched       S11456     8      2 0x00000000
[66220.696705] Call Trace:
[66220.696713]  __schedule+0x2c8/0x620
[66220.696718]  ? put_prev_entity+0x39/0x540
[66220.696720]  schedule+0x44/0x90
[66220.696723]  schedule_timeout+0x110/0x1a0
[66220.696727]  ? del_timer_sync+0x50/0x50
[66220.696730]  ? prepare_to_swait+0x62/0x70
[66220.696735]  rcu_gp_kthread+0x4c8/0x7f0
[66220.696738]  ? rcu_gp_kthread+0x4c8/0x7f0
[66220.696741]  kthread+0x10d/0x140
[66220.696745]  ? _synchronize_rcu_expedited.constprop.78+0x380/0x380
[66220.696747]  ? kthread_park+0x70/0x70
[66220.696751]  ret_from_fork+0x22/0x30
[66283.738241] INFO: rcu_sched detected stalls on CPUs/tasks:
[66283.739155]  11-...: (0 ticks this GP) idle=f34/0/0 softirq=1901625/1901625
fqs=1 
[66283.740087]  (detected by 4, t=8407 jiffies, g=336717, c=336716, q=3093)
[66283.741048] Sending NMI from CPU 4 to CPUs 11:
[66283.741069] NMI backtrace for cpu 11 skipped: idling at pc
0xffffffffae71669a
[66283.742056] rcu_sched kthread starved for 6305 jiffies! g336717 c336716 f0x0
RCU_GP_WAIT_FQS(3) ->state=0x1
[66283.743074] rcu_sched       S11456     8      2 0x00000000
[66283.743079] Call Trace:
[66283.743085]  __schedule+0x2c8/0x620
[66283.743088]  schedule+0x44/0x90
[66283.743091]  schedule_timeout+0x110/0x1a0
[66283.743094]  ? del_timer_sync+0x50/0x50
[66283.743098]  ? prepare_to_swait+0x62/0x70
[66283.743102]  rcu_gp_kthread+0x4c8/0x7f0
[66283.743105]  ? rcu_gp_kthread+0x4c8/0x7f0
[66283.743108]  kthread+0x10d/0x140
[66283.743112]  ? _synchronize_rcu_expedited.constprop.78+0x380/0x380
[66283.743114]  ? kthread_park+0x70/0x70
[66283.743118]  ret_from_fork+0x22/0x30
[66902.906415] INFO: rcu_sched detected stalls on CPUs/tasks:
[66902.907481]  11-...: (1255 GPs behind) idle=f54/0/0 softirq=1901625/1901625
fqs=1 
[66902.908568]  (detected by 5, t=2102 jiffies, g=337972, c=337971, q=1121)
[66902.909689] Sending NMI from CPU 5 to CPUs 11:
[66902.909702] NMI backtrace for cpu 11 skipped: idling at pc
0xffffffffae71669a
[66902.910697] rcu_sched kthread starved for 2100 jiffies! g337972 c337971 f0x0
RCU_GP_WAIT_FQS(3) ->state=0x1
[66902.911876] rcu_sched       S11456     8      2 0x00000000
[66902.911882] Call Trace:
[66902.911889]  __schedule+0x2c8/0x620
[66902.911892]  schedule+0x44/0x90
[66902.911895]  schedule_timeout+0x110/0x1a0
[66902.911899]  ? del_timer_sync+0x50/0x50
[66902.911902]  ? prepare_to_swait+0x62/0x70
[66902.911907]  rcu_gp_kthread+0x4c8/0x7f0
[66902.911910]  ? rcu_gp_kthread+0x4c8/0x7f0
[66902.911913]  kthread+0x10d/0x140
[66902.911916]  ? _synchronize_rcu_expedited.constprop.78+0x380/0x380
[66902.911918]  ? kthread_park+0x70/0x70
[66902.911922]  ret_from_fork+0x22/0x30
[67123.131539] INFO: rcu_sched detected stalls on CPUs/tasks:
[67123.132769]  11-...: (0 ticks this GP) idle=ff8/0/0 softirq=1901625/1901625
fqs=0 
[67123.134016]  (detected by 10, t=2102 jiffies, g=338391, c=338390, q=1258)
[67123.135295] Sending NMI from CPU 10 to CPUs 11:
[67123.135320] NMI backtrace for cpu 11 skipped: idling at pc
0xffffffffae71669a
[67123.136304] rcu_sched kthread starved for 2102 jiffies! g338391 c338390 f0x0
RCU_GP_WAIT_FQS(3) ->state=0x1
[67123.137627] rcu_sched       S11456     8      2 0x00000000
[67123.137632] Call Trace:
[67123.137639]  __schedule+0x2c8/0x620
[67123.137644]  ? put_prev_entity+0x39/0x540
[67123.137646]  schedule+0x44/0x90
[67123.137649]  schedule_timeout+0x110/0x1a0
[67123.137653]  ? del_timer_sync+0x50/0x50
[67123.137656]  ? prepare_to_swait+0x62/0x70
[67123.137661]  rcu_gp_kthread+0x4c8/0x7f0
[67123.137664]  ? rcu_gp_kthread+0x4c8/0x7f0
[67123.137667]  kthread+0x10d/0x140
[67123.137671]  ? _synchronize_rcu_expedited.constprop.78+0x380/0x380
[67123.137673]  ? kthread_park+0x70/0x70
[67123.137676]  ret_from_fork+0x22/0x30
[67186.177259] INFO: rcu_sched detected stalls on CPUs/tasks:
[67186.178640]  11-...: (0 ticks this GP) idle=008/0/0 softirq=1901625/1901625
fqs=1 
[67186.180047]  (detected by 5, t=8407 jiffies, g=338391, c=338390, q=3456)
[67186.181485] Sending NMI from CPU 5 to CPUs 11:
[67186.181497] NMI backtrace for cpu 11 skipped: idling at pc
0xffffffffae71669a
[67186.182493] rcu_sched kthread starved for 6305 jiffies! g338391 c338390 f0x0
RCU_GP_WAIT_FQS(3) ->state=0x1
[67186.183988] rcu_sched       S11456     8      2 0x00000000
[67186.183993] Call Trace:
[67186.183999]  __schedule+0x2c8/0x620
[67186.184001]  schedule+0x44/0x90
[67186.184004]  schedule_timeout+0x110/0x1a0
[67186.184008]  ? del_timer_sync+0x50/0x50
[67186.184011]  ? prepare_to_swait+0x62/0x70
[67186.184015]  rcu_gp_kthread+0x4c8/0x7f0
[67186.184018]  ? rcu_gp_kthread+0x4c8/0x7f0
[67186.184021]  kthread+0x10d/0x140
[67186.184025]  ? _synchronize_rcu_expedited.constprop.78+0x380/0x380
[67186.184026]  ? kthread_park+0x70/0x70
[67186.184030]  ret_from_fork+0x22/0x30
[67244.753305] INFO: rcu_sched detected stalls on CPUs/tasks:
[67244.754844]  11-...: (88 GPs behind) idle=018/0/0 softirq=1901625/1901625
fqs=1 
[67244.756406]  (detected by 5, t=2102 jiffies, g=338479, c=338478, q=1121)
[67244.758001] Sending NMI from CPU 5 to CPUs 11:
[67244.758013] NMI backtrace for cpu 11 skipped: idling at pc
0xffffffffae71669a
[67244.759008] rcu_sched kthread starved for 2099 jiffies! g338479 c338478 f0x0
RCU_GP_WAIT_FQS(3) ->state=0x1
[67244.760662] rcu_sched       S11456     8      2 0x00000000
[67244.760667] Call Trace:
[67244.760673]  __schedule+0x2c8/0x620
[67244.760676]  schedule+0x44/0x90
[67244.760679]  schedule_timeout+0x110/0x1a0
[67244.760683]  ? del_timer_sync+0x50/0x50
[67244.760686]  ? prepare_to_swait+0x62/0x70
[67244.760690]  rcu_gp_kthread+0x4c8/0x7f0
[67244.760694]  ? rcu_gp_kthread+0x4c8/0x7f0
[67244.760696]  kthread+0x10d/0x140
[67244.760700]  ? _synchronize_rcu_expedited.constprop.78+0x380/0x380
[67244.760702]  ? kthread_park+0x70/0x70
[67244.760706]  ret_from_fork+0x22/0x30
[68476.790067] INFO: rcu_sched detected stalls on CPUs/tasks:
[68476.791773]  11-...: (0 ticks this GP) idle=164/0/0 softirq=1901625/1901625
fqs=0 
[68476.793489]  (detected by 7, t=2102 jiffies, g=341009, c=341008, q=1380)
[68476.795244] Sending NMI from CPU 7 to CPUs 11:
[68476.795276] NMI backtrace for cpu 11 skipped: idling at pc
0xffffffffae71669a
[68476.796252] rcu_sched kthread starved for 2102 jiffies! g341009 c341008 f0x0
RCU_GP_WAIT_FQS(3) ->state=0x1
[68476.798063] rcu_sched       S11456     8      2 0x00000000
[68476.798069] Call Trace:
[68476.798076]  __schedule+0x2c8/0x620
[68476.798081]  ? put_prev_entity+0x39/0x540
[68476.798083]  schedule+0x44/0x90
[68476.798086]  schedule_timeout+0x110/0x1a0
[68476.798089]  ? del_timer_sync+0x50/0x50
[68476.798092]  ? prepare_to_swait+0x62/0x70
[68476.798096]  rcu_gp_kthread+0x4c8/0x7f0
[68476.798100]  ? rcu_gp_kthread+0x4c8/0x7f0
[68476.798102]  kthread+0x10d/0x140
[68476.798106]  ? _synchronize_rcu_expedited.constprop.78+0x380/0x380
[68476.798108]  ? kthread_park+0x70/0x70
[68476.798112]  ret_from_fork+0x22/0x30
[68539.835809] INFO: rcu_sched detected stalls on CPUs/tasks:
[68539.837664]  11-...: (0 ticks this GP) idle=174/0/0 softirq=1901625/1901625
fqs=1 
[68539.839539]  (detected by 5, t=8407 jiffies, g=341009, c=341008, q=3363)
[68539.841447] Sending NMI from CPU 5 to CPUs 11:
[68539.841459] NMI backtrace for cpu 11 skipped: idling at pc
0xffffffffae71669a
[68539.842454] rcu_sched kthread starved for 6305 jiffies! g341009 c341008 f0x0
RCU_GP_WAIT_FQS(3) ->state=0x1
[68539.844425] rcu_sched       S11456     8      2 0x00000000
[68539.844430] Call Trace:
[68539.844436]  __schedule+0x2c8/0x620
[68539.844439]  schedule+0x44/0x90
[68539.844442]  schedule_timeout+0x110/0x1a0
[68539.844446]  ? del_timer_sync+0x50/0x50
[68539.844449]  ? prepare_to_swait+0x62/0x70
[68539.844453]  rcu_gp_kthread+0x4c8/0x7f0
[68539.844456]  ? rcu_gp_kthread+0x4c8/0x7f0
[68539.844459]  kthread+0x10d/0x140
[68539.844462]  ? _synchronize_rcu_expedited.constprop.78+0x380/0x380
[68539.844464]  ? kthread_park+0x70/0x70
[68539.844468]  ret_from_fork+0x22/0x30
[72010.480535] INFO: rcu_sched detected stalls on CPUs/tasks:
[72010.482562]  11-...: (0 ticks this GP) idle=4e0/0/0 softirq=1901625/1901625
fqs=0 
[72010.484604]  (detected by 10, t=2102 jiffies, g=348218, c=348217, q=1624)
[72010.486678] Sending NMI from CPU 10 to CPUs 11:
[72010.486702] NMI backtrace for cpu 11 skipped: idling at pc
0xffffffffae71669a
[72010.487686] rcu_sched kthread starved for 2102 jiffies! g348218 c348217 f0x0
RCU_GP_WAIT_FQS(3) ->state=0x1
[72010.489781] rcu_sched       S11456     8      2 0x00000000
[72010.489787] Call Trace:
[72010.489794]  __schedule+0x2c8/0x620
[72010.489800]  ? put_prev_entity+0x39/0x540
[72010.489802]  schedule+0x44/0x90
[72010.489805]  schedule_timeout+0x110/0x1a0
[72010.489809]  ? del_timer_sync+0x50/0x50
[72010.489812]  ? prepare_to_swait+0x62/0x70
[72010.489817]  rcu_gp_kthread+0x4c8/0x7f0
[72010.489820]  ? rcu_gp_kthread+0x4c8/0x7f0
[72010.489823]  kthread+0x10d/0x140
[72010.489827]  ? _synchronize_rcu_expedited.constprop.78+0x380/0x380
[72010.489829]  ? kthread_park+0x70/0x70
[72010.489833]  ret_from_fork+0x22/0x30
[88198.215374] INFO: rcu_sched detected stalls on CPUs/tasks:
[88198.217491]  11-...: (34112 GPs behind) idle=2d4/0/0 softirq=1901625/1901625
fqs=1 
[88198.219592]  (detected by 6, t=2102 jiffies, g=382330, c=382329, q=1979)
[88198.221683] Sending NMI from CPU 6 to CPUs 11:
[88198.221695] NMI backtrace for cpu 11 skipped: idling at pc
0xffffffffae71669a
[88198.222692] rcu_sched kthread starved for 2100 jiffies! g382330 c382329 f0x0
RCU_GP_WAIT_FQS(3) ->state=0x1
[88198.224789] rcu_sched       S11456     8      2 0x00000000
[88198.224795] Call Trace:
[88198.224803]  __schedule+0x2c8/0x620
[88198.224806]  schedule+0x44/0x90
[88198.224809]  schedule_timeout+0x110/0x1a0
[88198.224813]  ? del_timer_sync+0x50/0x50
[88198.224817]  ? prepare_to_swait+0x62/0x70
[88198.224822]  rcu_gp_kthread+0x4c8/0x7f0
[88198.224825]  ? rcu_gp_kthread+0x4c8/0x7f0
[88198.224829]  kthread+0x10d/0x140
[88198.224832]  ? _synchronize_rcu_expedited.constprop.78+0x380/0x380
[88198.224834]  ? kthread_park+0x70/0x70
[88198.224838]  ret_from_fork+0x22/0x30

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