[ 1230.305787][ T56] INFO: task kworker/u24:0:12 blocked for more than 122 seconds.
[ 1230.306292][ T56] Not tainted 7.1.0-virtme #1
[ 1230.306426][ T56] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1230.306664][ T56] task:kworker/u24:0 state:D stack:26160 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 1230.306988][ T56] Workqueue: ipv6_addrconf addrconf_verify_work
[ 1230.307171][ T56] Call Trace:
[ 1230.307276][ T56]
[ 1230.307358][ T56] __schedule+0xf8c/0x20e0
[ 1230.307506][ T56] ? io_schedule_timeout+0x140/0x140
[ 1230.307644][ T56] ? find_held_lock+0x2b/0x80
[ 1230.307799][ T56] schedule+0xe7/0x2f0
[ 1230.308416][ T56] schedule_preempt_disabled+0x18/0x30
[ 1230.308553][ T56] __mutex_lock+0x6a1/0x1f10
[ 1230.308689][ T56] ? addrconf_verify_work+0x12/0x30
[ 1230.308832][ T56] ? ww_mutex_lock+0x160/0x160
[ 1230.308964][ T56] ? __lock_acquire+0x518/0xc20
[ 1230.309102][ T56] ? process_one_work+0xdb7/0x1410
[ 1230.309237][ T56] ? rcu_is_watching+0x15/0xd0
[ 1230.309366][ T56] ? rcu_is_watching+0x15/0xd0
[ 1230.309504][ T56] ? addrconf_verify_work+0x12/0x30
[ 1230.309641][ T56] addrconf_verify_work+0x12/0x30
[ 1230.309781][ T56] process_one_work+0xdf8/0x1410
[ 1230.309913][ T56] ? pwq_dec_nr_in_flight+0x710/0x710
[ 1230.310041][ T56] ? lock_acquire.part.0+0xbc/0x260
[ 1230.310174][ T56] worker_thread+0x4f1/0xd60
[ 1230.310306][ T56] ? rescuer_thread+0x1320/0x1320
[ 1230.310435][ T56] kthread+0x367/0x460
[ 1230.310541][ T56] ? trace_irq_enable.constprop.0+0x9b/0x160
[ 1230.310872][ T56] ? kthread_affine_node+0x330/0x330
[ 1230.311003][ T56] ret_from_fork+0x474/0x6b0
[ 1230.311132][ T56] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[ 1230.311289][ T56] ? __switch_to+0x5a3/0xe00
[ 1230.311417][ T56] ? kthread_affine_node+0x330/0x330
[ 1230.311543][ T56] ret_from_fork_asm+0x11/0x20
[ 1230.311680][ T56]
[ 1230.311787][ T56] INFO: task kworker/u24:0:12 is blocked on a mutex likely owned by task kworker/2:0:29.
[ 1230.312004][ T56] INFO: task kworker/2:0:29 blocked for more than 122 seconds.
[ 1230.312178][ T56] Not tainted 7.1.0-virtme #1
[ 1230.312292][ T56] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1230.312484][ T56] task:kworker/2:0 state:D stack:27328 pid:29 tgid:29 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 1230.312760][ T56] Workqueue: events fbnic_service_task
[ 1230.312883][ T56] Call Trace:
[ 1230.312975][ T56]
[ 1230.313039][ T56] __schedule+0xf8c/0x20e0
[ 1230.313168][ T56] ? io_schedule_timeout+0x140/0x140
[ 1230.313291][ T56] ? find_held_lock+0x2b/0x80
[ 1230.313413][ T56] schedule+0xe7/0x2f0
[ 1230.313508][ T56] schedule_preempt_disabled+0x18/0x30
[ 1230.313630][ T56] __mutex_lock+0x6a1/0x1f10
[ 1230.313766][ T56] ? fbnic_service_task+0x3ba/0x570
[ 1230.313885][ T56] ? ww_mutex_lock+0x160/0x160
[ 1230.314007][ T56] ? __lock_release.isra.0+0x6b/0x1a0
[ 1230.314131][ T56] ? fbnic_service_task+0x3ba/0x570
[ 1230.314250][ T56] fbnic_service_task+0x3ba/0x570
[ 1230.314371][ T56] process_one_work+0xdf8/0x1410
[ 1230.314490][ T56] ? pwq_dec_nr_in_flight+0x710/0x710
[ 1230.314610][ T56] ? lock_acquire.part.0+0xbc/0x260
[ 1230.314744][ T56] worker_thread+0x4f1/0xd60
[ 1230.314873][ T56] ? rescuer_thread+0x1320/0x1320
[ 1230.314990][ T56] kthread+0x367/0x460
[ 1230.315082][ T56] ? trace_irq_enable.constprop.0+0x9b/0x160
[ 1230.315229][ T56] ? kthread_affine_node+0x330/0x330
[ 1230.315345][ T56] ret_from_fork+0x474/0x6b0
[ 1230.315461][ T56] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[ 1230.315608][ T56] ? __switch_to+0x5a3/0xe00
[ 1230.315731][ T56] ? kthread_affine_node+0x330/0x330
[ 1230.315851][ T56] ret_from_fork_asm+0x11/0x20
[ 1230.315972][ T56]
[ 1230.316082][ T56] INFO: task kworker/2:0:29 is blocked on a mutex likely owned by task python3:13702.
[ 1230.316268][ T56] task:python3 state:D stack:25688 pid:13702 tgid:13702 ppid:13701 task_flags:0x400100 flags:0x00080802
[ 1230.316529][ T56] Call Trace:
[ 1230.316621][ T56]
[ 1230.316690][ T56] __schedule+0xf8c/0x20e0
[ 1230.316842][ T56] ? io_schedule_timeout+0x140/0x140
[ 1230.316956][ T56] ? find_held_lock+0x2b/0x80
[ 1230.317077][ T56] schedule+0xe7/0x2f0
[ 1230.317167][ T56] schedule_timeout+0x13f/0x290
[ 1230.317286][ T56] ? hrtimer_nanosleep_restart+0x270/0x270
[ 1230.317430][ T56] ? rcu_is_watching+0x15/0xd0
[ 1230.317548][ T56] ? hrtimers_cpu_dying+0x3e0/0x3e0
[ 1230.317681][ T56] ? threaded_store+0x132/0x220
[ 1230.317805][ T56] ? rcu_is_watching+0x15/0xd0
[ 1230.317920][ T56] msleep+0x1b/0x30
[ 1230.318010][ T56] napi_set_threaded+0x19d/0x590
[ 1230.318131][ T56] ? napi_resume_irqs+0x1a0/0x1a0
[ 1230.318248][ T56] ? __mutex_lock+0x9a4/0x1f10
[ 1230.318365][ T56] netif_set_threaded+0x361/0x5f0
[ 1230.318481][ T56] ? lock_acquire.part.0+0xbc/0x260
[ 1230.318598][ T56] ? sysfs_file_ops+0x140/0x140
[ 1230.318717][ T56] threaded_store+0x1b8/0x220
[ 1230.318839][ T56] ? xps_rxqs_store+0x2e0/0x2e0
[ 1230.318953][ T56] ? sysfs_file_ops+0x140/0x140
[ 1230.319078][ T56] ? sysfs_file_kobj+0xbd/0x1e0
[ 1230.319192][ T56] ? sysfs_kf_write+0x65/0x160
[ 1230.319309][ T56] kernfs_fop_write_iter+0x335/0x510
[ 1230.319425][ T56] ? kernfs_ops+0xf0/0xf0
[ 1230.319513][ T56] new_sync_write+0x33e/0x760
[ 1230.319630][ T56] ? __lock_acquire+0x518/0xc20
[ 1230.319751][ T56] ? new_sync_read+0x750/0x750
[ 1230.319872][ T56] ? lock_acquire.part.0+0xbc/0x260
[ 1230.319992][ T56] ? ksys_write+0x116/0x250
[ 1230.320112][ T56] vfs_write+0x6a4/0xbe0
[ 1230.320206][ T56] ksys_write+0x116/0x250
[ 1230.320296][ T56] ? __ia32_sys_read+0xc0/0xc0
[ 1230.320415][ T56] ? kernfs_fop_llseek+0x160/0x1f0
[ 1230.320533][ T56] ? rcu_is_watching+0x15/0xd0
[ 1230.320654][ T56] do_syscall_64+0x117/0x590
[ 1230.320779][ T56] ? trace_hardirqs_off+0xd/0x30
[ 1230.320891][ T56] ? exc_page_fault+0xee/0x100
[ 1230.321010][ T56] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 1230.321152][ T56] RIP: 0033:0x7fa55e1fe64e
[ 1230.321274][ T56] RSP: 002b:00007ffe216b7f10 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1230.321450][ T56] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fa55e1fe64e
[ 1230.321623][ T56] RDX: 0000000000000001 RSI: 00005596eae2c440 RDI: 0000000000000007
[ 1230.321807][ T56] RBP: 00007ffe216b7f20 R08: 0000000000000000 R09: 0000000000000000
[ 1230.321983][ T56] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fa55e077390
[ 1230.322195][ T56] R13: 00005596eae2c440 R14: 0000000000000007 R15: 00007fa55e0050d0
[ 1230.322371][ T56]
[ 1230.322479][ T56]
[ 1230.322479][ T56] Showing all locks held in the system:
[ 1230.322645][ T56] 3 locks held by kworker/u24:0/12:
[ 1230.322856][ T56] #0: ff11000009063540 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0xd55/0x1410
[ 1230.323114][ T56] #1: ffa00000000cfd10 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0xdb7/0x1410
[ 1230.323404][ T56] #2: ffffffffaad44e80 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_verify_work+0x12/0x30
[ 1230.323612][ T56] 4 locks held by kworker/2:0/29:
[ 1230.323726][ T56] #0: ff11000001091b40 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0xd55/0x1410
[ 1230.323973][ T56] #1: ffa0000000237d10 ((work_completion)(&(&fbd->service_task)->work)){+.+.}-{0:0}, at: process_one_work+0xdb7/0x1410
[ 1230.324231][ T56] #2: ffffffffaad44e80 (rtnl_mutex){+.+.}-{4:4}, at: fbnic_service_task+0x97/0x570
[ 1230.324437][ T56] #3: ff110000083a0df0 (&dev->lock){+.+.}-{4:4}, at: fbnic_service_task+0x3ba/0x570
[ 1230.324652][ T56] 1 lock held by khungtaskd/56:
[ 1230.324765][ T56] #0: ffffffffaa5adec0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire.constprop.0+0x7/0x30
[ 1230.325007][ T56] 4 locks held by python3/13702:
[ 1230.325115][ T56] #0: ff1100000a851420 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x116/0x250
[ 1230.325327][ T56] #1: ff110000092aee80 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x247/0x510
[ 1230.325536][ T56] #2: ff110000084690f0 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x29e/0x510
[ 1230.325780][ T56] #3: ff110000083a0df0 (&dev->lock){+.+.}-{4:4}, at: threaded_store+0x132/0x220
[ 1230.325988][ T56]
[ 1230.326050][ T56] =============================================
[ 1230.326050][ T56]