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  1. [ 1454.599203] INFO: rcu_sched self-detected stall on CPU
  2. [ 1454.604364] 0-...: (1 GPs behind) idle=bce/140000000000002/0 softirq=103408/103408 fqs=0
  3. [ 1454.612644] (t=5250 jiffies g=51740 c=51739 q=6)
  4. [ 1454.617449] rcu_sched kthread starved for 5250 jiffies! g51740 c51739 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x402 ->cpu=1
  5. [ 1454.627907] rcu_sched I 0 8 2 0x00000000
  6. [ 1454.633420] [<c06d5461>] (__schedule) from [<c06d590d>] (schedule+0x29/0x60)
  7. [ 1454.640488] [<c06d590d>] (schedule) from [<c06d7fd3>] (schedule_timeout+0xd3/0x124)
  8. [ 1454.648167] [<c06d7fd3>] (schedule_timeout) from [<c0163841>] (rcu_gp_kthread+0x2cd/0x670)
  9. [ 1454.656453] [<c0163841>] (rcu_gp_kthread) from [<c013487d>] (kthread+0xf9/0x100)
  10. [ 1454.663869] [<c013487d>] (kthread) from [<c0106359>] (ret_from_fork+0x11/0x38)
  11. [ 1454.671113] NMI backtrace for cpu 0
  12. [ 1454.674610] CPU: 0 PID: 2793 Comm: kworker/0:0 Not tainted 4.14.171-mvebu #22
  13. [ 1454.681761] Hardware name: Marvell Armada 380/385 (Device Tree)
  14. [ 1454.687696] Workqueue: events dbs_work_handler
  15. [ 1454.692155] [<c010cf69>] (unwind_backtrace) from [<c0108f87>] (show_stack+0xb/0xc)
  16. [ 1454.699746] [<c0108f87>] (show_stack) from [<c06c7907>] (dump_stack+0x6f/0x7c)
  17. [ 1454.706988] [<c06c7907>] (dump_stack) from [<c06cb6d3>] (nmi_cpu_backtrace+0x6b/0x94)
  18. [ 1454.714837] [<c06cb6d3>] (nmi_cpu_backtrace) from [<c06cb7c9>] (nmi_trigger_cpumask_backtrace+0xcd/0xd8)
  19. [ 1454.724340] [<c06cb7c9>] (nmi_trigger_cpumask_backtrace) from [<c0164a1b>] (rcu_dump_cpu_stacks+0x6d/0x8a)
  20. [ 1454.734019] [<c0164a1b>] (rcu_dump_cpu_stacks) from [<c0164411>] (rcu_check_callbacks+0x4f1/0x624)
  21. [ 1454.743001] [<c0164411>] (rcu_check_callbacks) from [<c0166845>] (update_process_times+0x25/0x50)
  22. [ 1454.751898] [<c0166845>] (update_process_times) from [<c0172b63>] (tick_sched_timer+0x4f/0x1f8)
  23. [ 1454.760618] [<c0172b63>] (tick_sched_timer) from [<c01671cd>] (__hrtimer_run_queues+0xd5/0x130)
  24. [ 1454.769337] [<c01671cd>] (__hrtimer_run_queues) from [<c016738f>] (hrtimer_interrupt+0x77/0x178)
  25. [ 1454.778144] [<c016738f>] (hrtimer_interrupt) from [<c010c589>] (twd_handler+0x1d/0x20)
  26. [ 1454.786082] [<c010c589>] (twd_handler) from [<c015baf7>] (handle_percpu_devid_irq+0x4b/0xd8)
  27. [ 1454.794543] [<c015baf7>] (handle_percpu_devid_irq) from [<c015837f>] (generic_handle_irq+0x17/0x20)
  28. [ 1454.803612] [<c015837f>] (generic_handle_irq) from [<c0158761>] (__handle_domain_irq+0x3d/0x80)
  29. [ 1454.812332] [<c0158761>] (__handle_domain_irq) from [<c01013a7>] (gic_handle_irq+0x33/0x64)
  30. [ 1454.820702] [<c01013a7>] (gic_handle_irq) from [<c0109a25>] (__irq_svc+0x65/0x94)
  31. [ 1454.828201] Exception stack(0xcbcb7c48 to 0xcbcb7c90)
  32. [ 1454.833265] 7c40: ee5e7444 00000000 0000d040 0000d03f ee5e7444 ee5e7440
  33. [ 1454.841462] 7c60: 00000000 c0a5ad40 c094e2b8 ffffe000 4000001f 40000006 00000000 cbcb7c98
  34. [ 1454.849658] 7c80: c0481875 c06d8ad6 20000133 ffffffff
  35. [ 1454.854723] [<c0109a25>] (__irq_svc) from [<c06d8ad6>] (_raw_spin_lock_bh+0x32/0x40)
  36. [ 1454.862489] [<c06d8ad6>] (_raw_spin_lock_bh) from [<c0481875>] (mv_xor_tasklet+0xd/0x1c)
  37. [ 1454.870601] [<c0481875>] (mv_xor_tasklet) from [<c0123181>] (tasklet_action+0x51/0xbc)
  38. [ 1454.878537] [<c0123181>] (tasklet_action) from [<c0101545>] (__do_softirq+0xc5/0x1a0)
  39. [ 1454.886385] [<c0101545>] (__do_softirq) from [<c0123437>] (irq_exit+0x6b/0xa4)
  40. [ 1454.893627] [<c0123437>] (irq_exit) from [<c0158765>] (__handle_domain_irq+0x41/0x80)
  41. [ 1454.901475] [<c0158765>] (__handle_domain_irq) from [<c01013a7>] (gic_handle_irq+0x33/0x64)
  42. [ 1454.909846] [<c01013a7>] (gic_handle_irq) from [<c0109a25>] (__irq_svc+0x65/0x94)
  43. [ 1454.917343] Exception stack(0xcbcb7d58 to 0xcbcb7da0)
  44. [ 1454.922405] 7d40: 00000004 00000004
  45. [ 1454.930602] 7d60: c0a04344 f0800000 00000001 eedcd240 00000003 00000001 5f5e1000 ee6c9380
  46. [ 1454.938800] 7d80: 000c3500 00000000 00000002 cbcb7da8 c0456f15 c01764d0 20000033 ffffffff
  47. [ 1454.946997] [<c0109a25>] (__irq_svc) from [<c01764d0>] (generic_exec_single+0x78/0xdc)
  48. [ 1454.954933] [<c01764d0>] (generic_exec_single) from [<c01765cb>] (smp_call_function_single+0x97/0x108)
  49. [ 1454.964262] [<c01765cb>] (smp_call_function_single) from [<c01769e5>] (on_each_cpu+0x1d/0x30)
  50. [ 1454.972809] [<c01769e5>] (on_each_cpu) from [<c011ca87>] (armada_38x_pmsu_dfs_request+0x17/0x20)
  51. [ 1454.981615] [<c011ca87>] (armada_38x_pmsu_dfs_request) from [<c047bcb5>] (clk_change_rate+0xcd/0x15c)
  52. [ 1454.990856] [<c047bcb5>] (clk_change_rate) from [<c047bed1>] (clk_core_set_rate_nolock+0x41/0x60)
  53. [ 1454.999748] [<c047bed1>] (clk_core_set_rate_nolock) from [<c047bf05>] (clk_set_rate+0x15/0x20)
  54. [ 1455.008382] [<c047bf05>] (clk_set_rate) from [<c04bc533>] (dev_pm_opp_set_rate+0x213/0x2b4)
  55. [ 1455.016756] [<c04bc533>] (dev_pm_opp_set_rate) from [<c0581241>] (__cpufreq_driver_target+0x13d/0x49c)
  56. [ 1455.026087] [<c0581241>] (__cpufreq_driver_target) from [<c0583691>] (od_dbs_update+0x85/0xfc)
  57. [ 1455.034720] [<c0583691>] (od_dbs_update) from [<c0583e33>] (dbs_work_handler+0x23/0x48)
  58. [ 1455.042745] [<c0583e33>] (dbs_work_handler) from [<c01305d7>] (process_one_work+0x137/0x2b0)
  59. [ 1455.051204] [<c01305d7>] (process_one_work) from [<c013100b>] (worker_thread+0xfb/0x3f8)
  60. [ 1455.059314] [<c013100b>] (worker_thread) from [<c013487d>] (kthread+0xf9/0x100)
  61. [ 1455.066641] [<c013487d>] (kthread) from [<c0106359>] (ret_from_fork+0x11/0x38)
  62. [ 1455.073881] Sending NMI from CPU 0 to CPUs 1:
  63. [ 1517.606133] INFO: rcu_sched self-detected stall on CPU
  64. [ 1517.611287] 0-...: (1 GPs behind) idle=bce/140000000000002/0 softirq=103408/103408 fqs=0
  65. [ 1517.619567] (t=21003 jiffies g=51740 c=51739 q=6)
  66. [ 1517.624458] rcu_sched kthread starved for 21003 jiffies! g51740 c51739 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=1
  67. [ 1517.634827] rcu_sched R running task 0 8 2 0x00000000
  68. [ 1517.641899] [<c06d5461>] (__schedule) from [<c06d590d>] (schedule+0x29/0x60)
  69. [ 1517.648965] [<c06d590d>] (schedule) from [<c06d7fd3>] (schedule_timeout+0xd3/0x124)
  70. [ 1517.656641] [<c06d7fd3>] (schedule_timeout) from [<c0163841>] (rcu_gp_kthread+0x2cd/0x670)
  71. [ 1517.664925] [<c0163841>] (rcu_gp_kthread) from [<c013487d>] (kthread+0xf9/0x100)
  72. [ 1517.672339] [<c013487d>] (kthread) from [<c0106359>] (ret_from_fork+0x11/0x38)
  73. [ 1517.679577] NMI backtrace for cpu 0
  74. [ 1517.683073] CPU: 0 PID: 2793 Comm: kworker/0:0 Not tainted 4.14.171-mvebu #22
  75. [ 1517.690222] Hardware name: Marvell Armada 380/385 (Device Tree)
  76. [ 1517.696156] Workqueue: events dbs_work_handler
  77. [ 1517.700613] [<c010cf69>] (unwind_backtrace) from [<c0108f87>] (show_stack+0xb/0xc)
  78. [ 1517.708201] [<c0108f87>] (show_stack) from [<c06c7907>] (dump_stack+0x6f/0x7c)
  79. [ 1517.715441] [<c06c7907>] (dump_stack) from [<c06cb6d3>] (nmi_cpu_backtrace+0x6b/0x94)
  80. [ 1517.723290] [<c06cb6d3>] (nmi_cpu_backtrace) from [<c06cb7c9>] (nmi_trigger_cpumask_backtrace+0xcd/0xd8)
  81. [ 1517.732793] [<c06cb7c9>] (nmi_trigger_cpumask_backtrace) from [<c0164a1b>] (rcu_dump_cpu_stacks+0x6d/0x8a)
  82. [ 1517.742471] [<c0164a1b>] (rcu_dump_cpu_stacks) from [<c0164411>] (rcu_check_callbacks+0x4f1/0x624)
  83. [ 1517.751452] [<c0164411>] (rcu_check_callbacks) from [<c0166845>] (update_process_times+0x25/0x50)
  84. [ 1517.760346] [<c0166845>] (update_process_times) from [<c0172b63>] (tick_sched_timer+0x4f/0x1f8)
  85. [ 1517.769065] [<c0172b63>] (tick_sched_timer) from [<c01671cd>] (__hrtimer_run_queues+0xd5/0x130)
  86. [ 1517.777785] [<c01671cd>] (__hrtimer_run_queues) from [<c016738f>] (hrtimer_interrupt+0x77/0x178)
  87. [ 1517.786590] [<c016738f>] (hrtimer_interrupt) from [<c010c589>] (twd_handler+0x1d/0x20)
  88. [ 1517.794526] [<c010c589>] (twd_handler) from [<c015baf7>] (handle_percpu_devid_irq+0x4b/0xd8)
  89. [ 1517.802986] [<c015baf7>] (handle_percpu_devid_irq) from [<c015837f>] (generic_handle_irq+0x17/0x20)
  90. [ 1517.812054] [<c015837f>] (generic_handle_irq) from [<c0158761>] (__handle_domain_irq+0x3d/0x80)
  91. [ 1517.820774] [<c0158761>] (__handle_domain_irq) from [<c01013a7>] (gic_handle_irq+0x33/0x64)
  92. [ 1517.829144] [<c01013a7>] (gic_handle_irq) from [<c0109a25>] (__irq_svc+0x65/0x94)
  93. [ 1517.836642] Exception stack(0xcbcb7c48 to 0xcbcb7c90)
  94. [ 1517.841706] 7c40: ee5e7444 00000000 0000d040 0000d03f ee5e7444 ee5e7440
  95. [ 1517.849903] 7c60: 00000000 c0a5ad40 c094e2b8 ffffe000 4000001f 40000006 00000000 cbcb7c98
  96. [ 1517.858099] 7c80: c0481875 c06d8ad6 20000133 ffffffff
  97. [ 1517.863162] [<c0109a25>] (__irq_svc) from [<c06d8ad6>] (_raw_spin_lock_bh+0x32/0x40)
  98. [ 1517.870925] [<c06d8ad6>] (_raw_spin_lock_bh) from [<c0481875>] (mv_xor_tasklet+0xd/0x1c)
  99. [ 1517.879036] [<c0481875>] (mv_xor_tasklet) from [<c0123181>] (tasklet_action+0x51/0xbc)
  100. [ 1517.886971] [<c0123181>] (tasklet_action) from [<c0101545>] (__do_softirq+0xc5/0x1a0)
  101. [ 1517.894819] [<c0101545>] (__do_softirq) from [<c0123437>] (irq_exit+0x6b/0xa4)
  102. [ 1517.902060] [<c0123437>] (irq_exit) from [<c0158765>] (__handle_domain_irq+0x41/0x80)
  103. [ 1517.909908] [<c0158765>] (__handle_domain_irq) from [<c01013a7>] (gic_handle_irq+0x33/0x64)
  104. [ 1517.918278] [<c01013a7>] (gic_handle_irq) from [<c0109a25>] (__irq_svc+0x65/0x94)
  105. [ 1517.925776] Exception stack(0xcbcb7d58 to 0xcbcb7da0)
  106. [ 1517.930838] 7d40: 00000004 00000004
  107. [ 1517.939035] 7d60: c0a04344 f0800000 00000001 eedcd240 00000003 00000001 5f5e1000 ee6c9380
  108. [ 1517.947231] 7d80: 000c3500 00000000 00000002 cbcb7da8 c0456f15 c01764d0 20000033 ffffffff
  109. [ 1517.955429] [<c0109a25>] (__irq_svc) from [<c01764d0>] (generic_exec_single+0x78/0xdc)
  110. [ 1517.963365] [<c01764d0>] (generic_exec_single) from [<c01765cb>] (smp_call_function_single+0x97/0x108)
  111. [ 1517.972694] [<c01765cb>] (smp_call_function_single) from [<c01769e5>] (on_each_cpu+0x1d/0x30)
  112. [ 1517.981240] [<c01769e5>] (on_each_cpu) from [<c011ca87>] (armada_38x_pmsu_dfs_request+0x17/0x20)
  113. [ 1517.990046] [<c011ca87>] (armada_38x_pmsu_dfs_request) from [<c047bcb5>] (clk_change_rate+0xcd/0x15c)
  114. [ 1517.999288] [<c047bcb5>] (clk_change_rate) from [<c047bed1>] (clk_core_set_rate_nolock+0x41/0x60)
  115. [ 1518.008180] [<c047bed1>] (clk_core_set_rate_nolock) from [<c047bf05>] (clk_set_rate+0x15/0x20)
  116. [ 1518.016812] [<c047bf05>] (clk_set_rate) from [<c04bc533>] (dev_pm_opp_set_rate+0x213/0x2b4)
  117. [ 1518.025184] [<c04bc533>] (dev_pm_opp_set_rate) from [<c0581241>] (__cpufreq_driver_target+0x13d/0x49c)
  118. [ 1518.034515] [<c0581241>] (__cpufreq_driver_target) from [<c0583691>] (od_dbs_update+0x85/0xfc)
  119. [ 1518.043148] [<c0583691>] (od_dbs_update) from [<c0583e33>] (dbs_work_handler+0x23/0x48)
  120. [ 1518.051171] [<c0583e33>] (dbs_work_handler) from [<c01305d7>] (process_one_work+0x137/0x2b0)
  121. [ 1518.059629] [<c01305d7>] (process_one_work) from [<c013100b>] (worker_thread+0xfb/0x3f8)
  122. [ 1518.067739] [<c013100b>] (worker_thread) from [<c013487d>] (kthread+0xf9/0x100)
  123. [ 1518.075067] [<c013487d>] (kthread) from [<c0106359>] (ret_from_fork+0x11/0x38)
  124. [ 1518.082306] Sending NMI from CPU 0 to CPUs 1:
  125. [ 1580.613076] INFO: rcu_sched self-detected stall on CPU
  126. [ 1580.618229] 0-...: (1 GPs behind) idle=bce/140000000000002/0 softirq=103408/103408 fqs=0
  127. [ 1580.626509] (t=36756 jiffies g=51740 c=51739 q=6)
  128. [ 1580.631400] rcu_sched kthread starved for 36756 jiffies! g51740 c51739 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=1
  129. [ 1580.641771] rcu_sched R running task 0 8 2 0x00000000
  130. [ 1580.648841] [<c06d5461>] (__schedule) from [<c06d590d>] (schedule+0x29/0x60)
  131. [ 1580.655908] [<c06d590d>] (schedule) from [<c06d7fd3>] (schedule_timeout+0xd3/0x124)
  132. [ 1580.663583] [<c06d7fd3>] (schedule_timeout) from [<c0163841>] (rcu_gp_kthread+0x2cd/0x670)
  133. [ 1580.671867] [<c0163841>] (rcu_gp_kthread) from [<c013487d>] (kthread+0xf9/0x100)
  134. [ 1580.679281] [<c013487d>] (kthread) from [<c0106359>] (ret_from_fork+0x11/0x38)
  135. [ 1580.686517] NMI backtrace for cpu 0
  136. [ 1580.690011] CPU: 0 PID: 2793 Comm: kworker/0:0 Not tainted 4.14.171-mvebu #22
  137. [ 1580.697161] Hardware name: Marvell Armada 380/385 (Device Tree)
  138. [ 1580.703094] Workqueue: events dbs_work_handler
  139. [ 1580.707550] [<c010cf69>] (unwind_backtrace) from [<c0108f87>] (show_stack+0xb/0xc)
  140. [ 1580.715138] [<c0108f87>] (show_stack) from [<c06c7907>] (dump_stack+0x6f/0x7c)
  141. [ 1580.722378] [<c06c7907>] (dump_stack) from [<c06cb6d3>] (nmi_cpu_backtrace+0x6b/0x94)
  142. [ 1580.730227] [<c06cb6d3>] (nmi_cpu_backtrace) from [<c06cb7c9>] (nmi_trigger_cpumask_backtrace+0xcd/0xd8)
  143. [ 1580.739730] [<c06cb7c9>] (nmi_trigger_cpumask_backtrace) from [<c0164a1b>] (rcu_dump_cpu_stacks+0x6d/0x8a)
  144. [ 1580.749408] [<c0164a1b>] (rcu_dump_cpu_stacks) from [<c0164411>] (rcu_check_callbacks+0x4f1/0x624)
  145. [ 1580.758389] [<c0164411>] (rcu_check_callbacks) from [<c0166845>] (update_process_times+0x25/0x50)
  146. [ 1580.767282] [<c0166845>] (update_process_times) from [<c0172b63>] (tick_sched_timer+0x4f/0x1f8)
  147. [ 1580.776002] [<c0172b63>] (tick_sched_timer) from [<c01671cd>] (__hrtimer_run_queues+0xd5/0x130)
  148. [ 1580.784721] [<c01671cd>] (__hrtimer_run_queues) from [<c016738f>] (hrtimer_interrupt+0x77/0x178)
  149. [ 1580.793528] [<c016738f>] (hrtimer_interrupt) from [<c010c589>] (twd_handler+0x1d/0x20)
  150. [ 1580.801464] [<c010c589>] (twd_handler) from [<c015baf7>] (handle_percpu_devid_irq+0x4b/0xd8)
  151. [ 1580.809923] [<c015baf7>] (handle_percpu_devid_irq) from [<c015837f>] (generic_handle_irq+0x17/0x20)
  152. [ 1580.818992] [<c015837f>] (generic_handle_irq) from [<c0158761>] (__handle_domain_irq+0x3d/0x80)
  153. [ 1580.827712] [<c0158761>] (__handle_domain_irq) from [<c01013a7>] (gic_handle_irq+0x33/0x64)
  154. [ 1580.836082] [<c01013a7>] (gic_handle_irq) from [<c0109a25>] (__irq_svc+0x65/0x94)
  155. [ 1580.843580] Exception stack(0xcbcb7c48 to 0xcbcb7c90)
  156. [ 1580.848643] 7c40: ee5e7444 00000000 0000d040 0000d03f ee5e7444 ee5e7440
  157. [ 1580.856839] 7c60: 00000000 c0a5ad40 c094e2b8 ffffe000 4000001f 40000006 00000000 cbcb7c98
  158. [ 1580.865035] 7c80: c0481875 c06d8ad6 20000133 ffffffff
  159. [ 1580.870098] [<c0109a25>] (__irq_svc) from [<c06d8ad6>] (_raw_spin_lock_bh+0x32/0x40)
  160. [ 1580.877862] [<c06d8ad6>] (_raw_spin_lock_bh) from [<c0481875>] (mv_xor_tasklet+0xd/0x1c)
  161. [ 1580.885973] [<c0481875>] (mv_xor_tasklet) from [<c0123181>] (tasklet_action+0x51/0xbc)
  162. [ 1580.893908] [<c0123181>] (tasklet_action) from [<c0101545>] (__do_softirq+0xc5/0x1a0)
  163. [ 1580.901757] [<c0101545>] (__do_softirq) from [<c0123437>] (irq_exit+0x6b/0xa4)
  164. [ 1580.908998] [<c0123437>] (irq_exit) from [<c0158765>] (__handle_domain_irq+0x41/0x80)
  165. [ 1580.916847] [<c0158765>] (__handle_domain_irq) from [<c01013a7>] (gic_handle_irq+0x33/0x64)
  166. [ 1580.925217] [<c01013a7>] (gic_handle_irq) from [<c0109a25>] (__irq_svc+0x65/0x94)
  167. [ 1580.932715] Exception stack(0xcbcb7d58 to 0xcbcb7da0)
  168. [ 1580.937776] 7d40: 00000004 00000004
  169. [ 1580.945972] 7d60: c0a04344 f0800000 00000001 eedcd240 00000003 00000001 5f5e1000 ee6c9380
  170. [ 1580.954169] 7d80: 000c3500 00000000 00000002 cbcb7da8 c0456f15 c01764d0 20000033 ffffffff
  171. [ 1580.962367] [<c0109a25>] (__irq_svc) from [<c01764d0>] (generic_exec_single+0x78/0xdc)
  172. [ 1580.970303] [<c01764d0>] (generic_exec_single) from [<c01765cb>] (smp_call_function_single+0x97/0x108)
  173. [ 1580.979631] [<c01765cb>] (smp_call_function_single) from [<c01769e5>] (on_each_cpu+0x1d/0x30)
  174. [ 1580.988177] [<c01769e5>] (on_each_cpu) from [<c011ca87>] (armada_38x_pmsu_dfs_request+0x17/0x20)
  175. [ 1580.996983] [<c011ca87>] (armada_38x_pmsu_dfs_request) from [<c047bcb5>] (clk_change_rate+0xcd/0x15c)
  176. [ 1581.006223] [<c047bcb5>] (clk_change_rate) from [<c047bed1>] (clk_core_set_rate_nolock+0x41/0x60)
  177. [ 1581.015116] [<c047bed1>] (clk_core_set_rate_nolock) from [<c047bf05>] (clk_set_rate+0x15/0x20)
  178. [ 1581.023748] [<c047bf05>] (clk_set_rate) from [<c04bc533>] (dev_pm_opp_set_rate+0x213/0x2b4)
  179. [ 1581.032120] [<c04bc533>] (dev_pm_opp_set_rate) from [<c0581241>] (__cpufreq_driver_target+0x13d/0x49c)
  180. [ 1581.041449] [<c0581241>] (__cpufreq_driver_target) from [<c0583691>] (od_dbs_update+0x85/0xfc)
  181. [ 1581.050082] [<c0583691>] (od_dbs_update) from [<c0583e33>] (dbs_work_handler+0x23/0x48)
  182. [ 1581.058105] [<c0583e33>] (dbs_work_handler) from [<c01305d7>] (process_one_work+0x137/0x2b0)
  183. [ 1581.066563] [<c01305d7>] (process_one_work) from [<c013100b>] (worker_thread+0xfb/0x3f8)
  184. [ 1581.074674] [<c013100b>] (worker_thread) from [<c013487d>] (kthread+0xf9/0x100)
  185. [ 1581.082000] [<c013487d>] (kthread) from [<c0106359>] (ret_from_fork+0x11/0x38)
  186. [ 1581.089238] Sending NMI from CPU 0 to CPUs 1:
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