[ 9.059072][ T221] ip (221) used greatest stack depth: 24512 bytes left [ 9.143269][ T224] veth0: renamed from veth1 [ 9.492377][ T261] br0: port 1(swp1) entered blocking state [ 9.492648][ T261] br0: port 1(swp1) entered disabled state [ 9.492808][ T261] swp1: entered allmulticast mode [ 9.494194][ T261] swp1: entered promiscuous mode [ 9.494776][ T261] br0: port 1(swp1) entered blocking state [ 9.495004][ T261] br0: port 1(swp1) entered forwarding state [ 9.612415][ T263] br0: port 2(vx0) entered blocking state [ 9.612593][ T263] br0: port 2(vx0) entered disabled state [ 9.612724][ T263] vx0: entered allmulticast mode [ 9.613661][ T263] vx0: entered promiscuous mode [ 9.614094][ T263] br0: port 2(vx0) entered blocking state [ 9.614313][ T263] br0: port 2(vx0) entered forwarding state [ 9.975312][ T277] br0: port 1(swp1) entered blocking state [ 9.975486][ T277] br0: port 1(swp1) entered disabled state [ 9.975798][ T277] swp1: entered allmulticast mode [ 9.976694][ T277] swp1: entered promiscuous mode [ 9.977241][ T277] br0: port 1(swp1) entered blocking state [ 9.977392][ T277] br0: port 1(swp1) entered forwarding state [ 10.031345][ T279] br0: port 2(vx0) entered blocking state [ 10.031533][ T279] br0: port 2(vx0) entered disabled state [ 10.031702][ T279] vx0: entered allmulticast mode [ 10.032528][ T279] vx0: entered promiscuous mode [ 10.032914][ T279] br0: port 2(vx0) entered blocking state [ 10.033045][ T279] br0: port 2(vx0) entered forwarding state [ 15.301742][ T290] GACT probability NOT on [ 15.789833][ T36] br0: port 1(swp1) entered disabled state [ 16.234075][ T36] [ 16.234145][ T36] ============================================ [ 16.234250][ T36] WARNING: possible recursive locking detected [ 16.234343][ T36] 7.1.0-rc5-virtme #1 Not tainted [ 16.234419][ T36] -------------------------------------------- [ 16.234513][ T36] kworker/u17:0/36 is trying to acquire lock: [ 16.234605][ T36] ff11000008a39d68 (&dev_instance_lock_key#2){+.+.}-{4:4}, at: __ethtool_get_link_ksettings+0xa3/0x260 [ 16.234767][ T36] [ 16.234767][ T36] but task is already holding lock: [ 16.234881][ T36] ff11000008a39d68 (&dev_instance_lock_key#2){+.+.}-{4:4}, at: __linkwatch_run_queue+0x348/0x850 [ 16.235036][ T36] and the lock comparison function returns 0: [ 16.235129][ T36] [ 16.235129][ T36] other info that might help us debug this: [ 16.235241][ T36] Possible unsafe locking scenario: [ 16.235241][ T36] [ 16.235353][ T36] CPU0 [ 16.235410][ T36] ---- [ 16.235465][ T36] lock(&dev_instance_lock_key#2); [ 16.235541][ T36] lock(&dev_instance_lock_key#2); [ 16.235615][ T36] [ 16.235615][ T36] *** DEADLOCK *** [ 16.235615][ T36] [ 16.235725][ T36] May be due to missing lock nesting notation [ 16.235725][ T36] [ 16.235835][ T36] 4 locks held by kworker/u17:0/36: [ 16.235918][ T36] #0: ff11000001152940 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xd55/0x1410 [ 16.236073][ T36] #1: ffa000000028fd10 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0xdb7/0x1410 [ 16.236227][ T36] #2: ffffffff9ccb4040 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0x4e/0xb0 [ 16.236359][ T36] #3: ff11000008a39d68 (&dev_instance_lock_key#2){+.+.}-{4:4}, at: __linkwatch_run_queue+0x348/0x850 [ 16.236510][ T36] [ 16.236510][ T36] stack backtrace: [ 16.236604][ T36] CPU: 2 UID: 0 PID: 36 Comm: kworker/u17:0 Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 16.236607][ T36] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.236609][ T36] Workqueue: events_unbound linkwatch_event [ 16.236612][ T36] Call Trace: [ 16.236614][ T36] [ 16.236615][ T36] dump_stack_lvl+0x6f/0xa0 [ 16.236619][ T36] print_deadlock_bug.cold+0xc0/0xcd [ 16.236623][ T36] validate_chain+0x592/0xc20 [ 16.236626][ T36] __lock_acquire+0x508/0xc10 [ 16.236628][ T36] lock_acquire.part.0+0xbc/0x260 [ 16.236630][ T36] ? __ethtool_get_link_ksettings+0xa3/0x260 [ 16.236631][ T36] ? rcu_is_watching+0x15/0xd0 [ 16.236635][ T36] ? lock_acquire+0x134/0x160 [ 16.236636][ T36] __mutex_lock+0x1ae/0x2010 [ 16.236640][ T36] ? __ethtool_get_link_ksettings+0xa3/0x260 [ 16.236641][ T36] ? __ethtool_get_link_ksettings+0xa3/0x260 [ 16.236643][ T36] ? inet6_dump_fib+0x618/0x11c0 [ 16.236646][ T36] ? ww_mutex_lock+0x160/0x160 [ 16.236648][ T36] ? lock_acquire.part.0+0xbc/0x260 [ 16.236649][ T36] ? find_held_lock+0x2b/0x80 [ 16.236651][ T36] ? __lock_release.isra.0+0x6b/0x1a0 [ 16.236652][ T36] ? do_raw_read_unlock+0x70/0x70 [ 16.236654][ T36] ? rt6_multipath_rebalance+0x990/0x990 [ 16.236656][ T36] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160 [ 16.236657][ T36] ? lockdep_hardirqs_on+0x8c/0x130 [ 16.236659][ T36] ? __local_bh_enable_ip+0xa5/0x140 [ 16.236661][ T36] ? __local_bh_enable_ip+0xa5/0x140 [ 16.236663][ T36] ? fib6_walk+0x277/0x3d0 [ 16.236665][ T36] ? __ethtool_get_link_ksettings+0xa3/0x260 [ 16.236666][ T36] __ethtool_get_link_ksettings+0xa3/0x260 [ 16.236668][ T36] ? fib6_walk+0x3d0/0x3d0 [ 16.236669][ T36] port_cost+0xaf/0x1c0 [ 16.236672][ T36] ? br_multicast_flood+0x9a0/0x9a0 [ 16.236674][ T36] ? __lock_release.isra.0+0x6b/0x1a0 [ 16.236676][ T36] ? packet_notifier+0x1b8/0xbd0 [ 16.236678][ T36] br_port_carrier_check+0x30e/0x420 [ 16.236680][ T36] br_device_event+0x52d/0x8f0 [ 16.236682][ T36] ? fib6_ifdown+0x870/0x870 [ 16.236684][ T36] ? packet_sendmsg_spkt+0x14a0/0x14a0 [ 16.236687][ T36] notifier_call_chain+0xb0/0x320 [ 16.236690][ T36] netif_state_change+0x139/0x3d0 [ 16.236693][ T36] ? call_netdevice_notifiers_info+0xd0/0xd0 [ 16.236695][ T36] ? linkwatch_do_dev+0xae/0xd0 [ 16.236696][ T36] __linkwatch_run_queue+0x350/0x850 [ 16.236698][ T36] ? linkwatch_do_dev+0xd0/0xd0 [ 16.236700][ T36] linkwatch_event+0x7f/0xb0 [ 16.236702][ T36] ? __linkwatch_run_queue+0x850/0x850 [ 16.236703][ T36] process_one_work+0xdf8/0x1410 [ 16.236706][ T36] ? pwq_dec_nr_in_flight+0x710/0x710 [ 16.236708][ T36] ? lock_acquire.part.0+0xbc/0x260 [ 16.236710][ T36] worker_thread+0x4f1/0xd60 [ 16.236713][ T36] ? rescuer_thread+0x1320/0x1320 [ 16.236715][ T36] kthread+0x367/0x460 [ 16.236716][ T36] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 16.236719][ T36] ? kthread_affine_node+0x330/0x330 [ 16.236721][ T36] ret_from_fork+0x474/0x6b0 [ 16.236724][ T36] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 16.236726][ T36] ? __switch_to+0x5a3/0xe00 [ 16.236729][ T36] ? kthread_affine_node+0x330/0x330 [ 16.236731][ T36] ret_from_fork_asm+0x11/0x20 [ 16.236734][ T36] [ 247.229026][ T44] INFO: task kworker/u17:0:36 blocked for more than 122 seconds. [ 247.229240][ T44] Not tainted 7.1.0-rc5-virtme #1 [ 247.229323][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 247.229458][ T44] task:kworker/u17:0 state:D stack:26376 pid:36 tgid:36 ppid:2 task_flags:0x4208060 flags:0x00080000 [ 247.229648][ T44] Workqueue: events_unbound linkwatch_event [ 247.229772][ T44] Call Trace: [ 247.229836][ T44] [ 247.229882][ T44] __schedule+0xd65/0x1a70 [ 247.229974][ T44] ? io_schedule_timeout+0x140/0x140 [ 247.230070][ T44] ? rcu_is_watching+0x15/0xd0 [ 247.230155][ T44] ? do_raw_spin_unlock+0x59/0x250 [ 247.230241][ T44] ? lock_acquire+0x134/0x160 [ 247.230328][ T44] ? rcu_is_watching+0x15/0xd0 [ 247.230415][ T44] schedule+0xd8/0x260 [ 247.230478][ T44] schedule_preempt_disabled+0x18/0x30 [ 247.230566][ T44] __mutex_lock+0x6af/0x2010 [ 247.230657][ T44] ? __ethtool_get_link_ksettings+0xa3/0x260 [ 247.230765][ T44] ? ww_mutex_lock+0x160/0x160 [ 247.230845][ T44] ? lock_acquire.part.0+0xbc/0x260 [ 247.230926][ T44] ? __lock_release.isra.0+0x6b/0x1a0 [ 247.231007][ T44] ? do_raw_read_unlock+0x70/0x70 [ 247.231095][ T44] ? rt6_multipath_rebalance+0x990/0x990 [ 247.231182][ T44] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160 [ 247.231284][ T44] ? lockdep_hardirqs_on+0x8c/0x130 [ 247.231364][ T44] ? __local_bh_enable_ip+0xa5/0x140 [ 247.231446][ T44] ? __local_bh_enable_ip+0xa5/0x140 [ 247.231525][ T44] ? fib6_walk+0x277/0x3d0 [ 247.231604][ T44] ? __ethtool_get_link_ksettings+0xa3/0x260 [ 247.231704][ T44] __ethtool_get_link_ksettings+0xa3/0x260 [ 247.231805][ T44] ? fib6_walk+0x3d0/0x3d0 [ 247.231884][ T44] port_cost+0xaf/0x1c0 [ 247.231946][ T44] ? br_multicast_flood+0x9a0/0x9a0 [ 247.232036][ T44] ? __lock_release.isra.0+0x6b/0x1a0 [ 247.232115][ T44] ? packet_notifier+0x1b8/0xbd0 [ 247.232201][ T44] br_port_carrier_check+0x30e/0x420 [ 247.232285][ T44] br_device_event+0x52d/0x8f0 [ 247.232371][ T44] ? fib6_ifdown+0x870/0x870 [ 247.232449][ T44] ? packet_sendmsg_spkt+0x14a0/0x14a0 [ 247.232528][ T44] notifier_call_chain+0xb0/0x320 [ 247.232607][ T44] netif_state_change+0x139/0x3d0 [ 247.232691][ T44] ? call_netdevice_notifiers_info+0xd0/0xd0 [ 247.232793][ T44] ? linkwatch_do_dev+0xae/0xd0 [ 247.232874][ T44] __linkwatch_run_queue+0x350/0x850 [ 247.232953][ T44] ? linkwatch_do_dev+0xd0/0xd0 [ 247.233039][ T44] linkwatch_event+0x7f/0xb0 [ 247.233115][ T44] ? __linkwatch_run_queue+0x850/0x850 [ 247.233198][ T44] process_one_work+0xdf8/0x1410 [ 247.233276][ T44] ? pwq_dec_nr_in_flight+0x710/0x710 [ 247.233351][ T44] ? lock_acquire.part.0+0xbc/0x260 [ 247.233427][ T44] worker_thread+0x4f1/0xd60 [ 247.233505][ T44] ? rescuer_thread+0x1320/0x1320 [ 247.233582][ T44] kthread+0x367/0x460 [ 247.233640][ T44] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 247.233741][ T44] ? kthread_affine_node+0x330/0x330 [ 247.233817][ T44] ret_from_fork+0x474/0x6b0 [ 247.233895][ T44] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 247.233991][ T44] ? __switch_to+0x5a3/0xe00 [ 247.234071][ T44] ? kthread_affine_node+0x330/0x330 [ 247.234149][ T44] ret_from_fork_asm+0x11/0x20 [ 247.234228][ T44] [ 247.234287][ T44] INFO: task kworker/u17:0:36 is blocked on a mutex likely owned by task kworker/u17:0:36. [ 247.234432][ T44] INFO: task bridge:330 blocked for more than 122 seconds. [ 247.234534][ T44] Not tainted 7.1.0-rc5-virtme #1 [ 247.234604][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 247.234727][ T44] task:bridge state:D stack:25840 pid:330 tgid:330 ppid:329 task_flags:0x400100 flags:0x00080000 [ 247.234892][ T44] Call Trace: [ 247.234948][ T44] [ 247.234985][ T44] __schedule+0xd65/0x1a70 [ 247.235064][ T44] ? io_schedule_timeout+0x140/0x140 [ 247.235139][ T44] ? rcu_is_watching+0x15/0xd0 [ 247.235216][ T44] ? do_raw_spin_unlock+0x59/0x250 [ 247.235290][ T44] ? lock_acquire+0x134/0x160 [ 247.235363][ T44] ? rcu_is_watching+0x15/0xd0 [ 247.235437][ T44] schedule+0xd8/0x260 [ 247.235492][ T44] schedule_preempt_disabled+0x18/0x30 [ 247.235565][ T44] __mutex_lock+0x6af/0x2010 [ 247.235639][ T44] ? rtnl_dump_ifinfo+0x983/0x1250 [ 247.235719][ T44] ? ww_mutex_lock+0x160/0x160 [ 247.235792][ T44] ? nla_get_range_signed+0x3d0/0x3d0 [ 247.235866][ T44] ? entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 247.235958][ T44] ? rcu_is_watching+0x15/0xd0 [ 247.236036][ T44] ? lock_acquire+0x134/0x160 [ 247.236108][ T44] ? __nla_validate_parse+0x20d/0x480 [ 247.236182][ T44] ? rtnl_dump_ifinfo+0x983/0x1250 [ 247.236255][ T44] rtnl_dump_ifinfo+0x983/0x1250 [ 247.236328][ T44] ? rtnl_fill_ifinfo.isra.0+0x2cd0/0x2cd0 [ 247.236416][ T44] ? stack_trace_save+0x93/0xc0 [ 247.236487][ T44] ? rcu_is_watching+0x15/0xd0 [ 247.236560][ T44] ? stack_depot_save_flags+0x1bb/0x770 [ 247.236637][ T44] ? trace_kmalloc+0xed/0x130 [ 247.236711][ T44] ? __kasan_kmalloc+0x7b/0x90 [ 247.236782][ T44] ? __kmalloc_node_track_caller_noprof+0x2f0/0x7b0 [ 247.236874][ T44] ? __asan_memset+0x27/0x50 [ 247.236945][ T44] ? __alloc_skb+0x342/0x5f0 [ 247.237018][ T44] ? __alloc_skb+0x4c2/0x5f0 [ 247.237090][ T44] ? napi_skb_cache_get+0x7b0/0x7b0 [ 247.237162][ T44] rtnl_dumpit+0x7b/0x1a0 [ 247.237218][ T44] netlink_dump+0x4b8/0x12b0 [ 247.237292][ T44] ? lock_acquire+0x134/0x160 [ 247.237365][ T44] ? ww_mutex_lock+0x160/0x160 [ 247.237438][ T44] ? netlink_lookup+0x1a0/0x1a0 [ 247.237513][ T44] ? rcu_is_watching+0x15/0xd0 [ 247.237583][ T44] __netlink_dump_start+0x635/0x8c0 [ 247.237654][ T44] ? rtnl_fill_ifinfo.isra.0+0x2cd0/0x2cd0 [ 247.237742][ T44] rtnetlink_rcv_msg+0x860/0xbd0 [ 247.237813][ T44] ? rtnl_link_fill+0x920/0x920 [ 247.237882][ T44] ? rtnl_unlock+0x10/0x10 [ 247.237954][ T44] ? rtnl_fill_ifinfo.isra.0+0x2cd0/0x2cd0 [ 247.238044][ T44] ? stack_depot_save_flags+0x1bb/0x770 [ 247.238115][ T44] netlink_rcv_skb+0x14e/0x3a0 [ 247.238185][ T44] ? rtnl_link_fill+0x920/0x920 [ 247.238253][ T44] ? lock_release+0x17c/0x1f0 [ 247.238320][ T44] ? netlink_ack+0xcf0/0xcf0 [ 247.238389][ T44] ? __netlink_lookup+0xb9/0x6b0 [ 247.238461][ T44] ? rcu_is_watching+0x15/0xd0 [ 247.238529][ T44] ? lock_release+0x17c/0x1f0 [ 247.238598][ T44] netlink_unicast+0x486/0x750 [ 247.238667][ T44] ? netlink_attachskb+0x810/0x810 [ 247.238739][ T44] netlink_sendmsg+0x735/0xc60 [ 247.238809][ T44] ? netlink_unicast+0x750/0x750 [ 247.238878][ T44] ? rcu_read_unlock+0x20/0x70 [ 247.238948][ T44] ? do_anonymous_page+0x268/0xd30 [ 247.239021][ T44] __sys_sendto+0x2c9/0x400 [ 247.239090][ T44] ? __ia32_sys_getpeername+0xd0/0xd0 [ 247.239160][ T44] ? __pmd_alloc+0x840/0x840 [ 247.239231][ T44] ? rcu_is_watching+0x15/0xd0 [ 247.239298][ T44] ? lock_release+0x17c/0x1f0 [ 247.239366][ T44] __x64_sys_sendto+0xe4/0x1f0 [ 247.239434][ T44] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 247.239518][ T44] ? trace_hardirqs_off_finish+0x15a/0x1c0 [ 247.239604][ T44] ? irqentry_exit+0x98/0x710 [ 247.239670][ T44] ? trace_hardirqs_on+0x36/0x40 [ 247.239739][ T44] do_syscall_64+0x117/0x590 [ 247.239809][ T44] ? trace_hardirqs_off+0xd/0x30 [ 247.239877][ T44] ? exc_page_fault+0xee/0x100 [ 247.239944][ T44] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 247.240031][ T44] RIP: 0033:0x7f75f660b08e [ 247.240106][ T44] RSP: 002b:00007ffec358dd10 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 247.240217][ T44] RAX: ffffffffffffffda RBX: 00007ffec358df78 RCX: 00007f75f660b08e [ 247.240320][ T44] RDX: 0000000000000028 RSI: 00007ffec358dd70 RDI: 0000000000000005 [ 247.240422][ T44] RBP: 00007ffec358dd20 R08: 0000000000000000 R09: 0000000000000000 [ 247.240522][ T44] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffec358df68 [ 247.240630][ T44] R13: 0000000000000009 R14: 00007f75f68af000 R15: 0000000000423c78 [ 247.240738][ T44] [ 247.240789][ T44] INFO: task bridge:330 is blocked on a mutex likely owned by task kworker/u17:0:36. [ 247.240901][ T44] INFO: lockdep is turned off. [ 370.109020][ T44] INFO: task kworker/u16:0:12 blocked for more than 122 seconds. [ 370.109209][ T44] Not tainted 7.1.0-rc5-virtme #1 [ 370.109289][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 370.109430][ T44] task:kworker/u16:0 state:D stack:26864 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000 [ 370.109613][ T44] Workqueue: ipv6_addrconf addrconf_verify_work [ 370.109720][ T44] Call Trace: [ 370.109781][ T44] [ 370.109823][ T44] __schedule+0xd65/0x1a70 [ 370.109908][ T44] ? io_schedule_timeout+0x140/0x140 [ 370.109988][ T44] ? rcu_is_watching+0x15/0xd0 [ 370.110082][ T44] ? do_raw_spin_unlock+0x59/0x250 [ 370.110174][ T44] ? lock_acquire+0x134/0x160 [ 370.110254][ T44] ? rcu_is_watching+0x15/0xd0 [ 370.110334][ T44] schedule+0xd8/0x260 [ 370.110397][ T44] schedule_preempt_disabled+0x18/0x30 [ 370.110477][ T44] __mutex_lock+0x6af/0x2010 [ 370.110559][ T44] ? rcu_read_lock_any_held+0x3c/0x90 [ 370.110640][ T44] ? addrconf_verify_work+0x12/0x30 [ 370.110722][ T44] ? rcu_is_watching+0x15/0xd0 [ 370.110802][ T44] ? ww_mutex_lock+0x160/0x160 [ 370.110883][ T44] ? _raw_spin_unlock_irqrestore+0x40/0x80 [ 370.110981][ T44] ? debug_object_deactivate+0x2f7/0x440 [ 370.111075][ T44] ? rcu_is_watching+0x15/0xd0 [ 370.111168][ T44] ? rcu_is_watching+0x15/0xd0 [ 370.111248][ T44] ? addrconf_verify_work+0x12/0x30 [ 370.111329][ T44] addrconf_verify_work+0x12/0x30 [ 370.111412][ T44] process_one_work+0xdf8/0x1410 [ 370.111491][ T44] ? pwq_dec_nr_in_flight+0x710/0x710 [ 370.111569][ T44] ? io_schedule_timeout+0x140/0x140 [ 370.111646][ T44] ? find_held_lock+0x2b/0x80 [ 370.111724][ T44] ? __rwlock_init+0x150/0x150 [ 370.111804][ T44] worker_thread+0x4f1/0xd60 [ 370.111883][ T44] ? rescuer_thread+0x1320/0x1320 [ 370.111962][ T44] kthread+0x367/0x460 [ 370.112027][ T44] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 370.112125][ T44] ? kthread_affine_node+0x330/0x330 [ 370.112210][ T44] ret_from_fork+0x474/0x6b0 [ 370.112294][ T44] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 370.112393][ T44] ? __switch_to+0x5a3/0xe00 [ 370.112471][ T44] ? kthread_affine_node+0x330/0x330 [ 370.112549][ T44] ret_from_fork_asm+0x11/0x20 [ 370.112633][ T44] [ 370.112698][ T44] INFO: task kworker/u16:0:12 is blocked on a mutex likely owned by task kworker/u17:0:36. [ 370.112842][ T44] INFO: task kworker/u17:0:36 blocked for more than 245 seconds. [ 370.112949][ T44] Not tainted 7.1.0-rc5-virtme #1 [ 370.113025][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 370.113149][ T44] task:kworker/u17:0 state:D stack:26376 pid:36 tgid:36 ppid:2 task_flags:0x4208060 flags:0x00080000 [ 370.113321][ T44] Workqueue: events_unbound linkwatch_event [ 370.113420][ T44] Call Trace: [ 370.113475][ T44] [ 370.113512][ T44] __schedule+0xd65/0x1a70 [ 370.113587][ T44] ? io_schedule_timeout+0x140/0x140 [ 370.113663][ T44] ? rcu_is_watching+0x15/0xd0 [ 370.113738][ T44] ? do_raw_spin_unlock+0x59/0x250 [ 370.113812][ T44] ? lock_acquire+0x134/0x160 [ 370.113885][ T44] ? rcu_is_watching+0x15/0xd0 [ 370.113960][ T44] schedule+0xd8/0x260 [ 370.114019][ T44] schedule_preempt_disabled+0x18/0x30 [ 370.114094][ T44] __mutex_lock+0x6af/0x2010 [ 370.114175][ T44] ? __ethtool_get_link_ksettings+0xa3/0x260 [ 370.114269][ T44] ? ww_mutex_lock+0x160/0x160 [ 370.114345][ T44] ? lock_acquire.part.0+0xbc/0x260 [ 370.114421][ T44] ? __lock_release.isra.0+0x6b/0x1a0 [ 370.114493][ T44] ? do_raw_read_unlock+0x70/0x70 [ 370.114566][ T44] ? rt6_multipath_rebalance+0x990/0x990 [ 370.114640][ T44] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160 [ 370.114731][ T44] ? lockdep_hardirqs_on+0x8c/0x130 [ 370.114805][ T44] ? __local_bh_enable_ip+0xa5/0x140 [ 370.114879][ T44] ? __local_bh_enable_ip+0xa5/0x140 [ 370.114952][ T44] ? fib6_walk+0x277/0x3d0 [ 370.115039][ T44] ? __ethtool_get_link_ksettings+0xa3/0x260 [ 370.115129][ T44] __ethtool_get_link_ksettings+0xa3/0x260 [ 370.115221][ T44] ? fib6_walk+0x3d0/0x3d0 [ 370.115296][ T44] port_cost+0xaf/0x1c0 [ 370.115352][ T44] ? br_multicast_flood+0x9a0/0x9a0 [ 370.115440][ T44] ? __lock_release.isra.0+0x6b/0x1a0 [ 370.115513][ T44] ? packet_notifier+0x1b8/0xbd0 [ 370.115590][ T44] br_port_carrier_check+0x30e/0x420 [ 370.115662][ T44] br_device_event+0x52d/0x8f0 [ 370.115734][ T44] ? fib6_ifdown+0x870/0x870 [ 370.115809][ T44] ? packet_sendmsg_spkt+0x14a0/0x14a0 [ 370.115882][ T44] notifier_call_chain+0xb0/0x320 [ 370.115958][ T44] netif_state_change+0x139/0x3d0 [ 370.116037][ T44] ? call_netdevice_notifiers_info+0xd0/0xd0 [ 370.116126][ T44] ? linkwatch_do_dev+0xae/0xd0 [ 370.116197][ T44] __linkwatch_run_queue+0x350/0x850 [ 370.116269][ T44] ? linkwatch_do_dev+0xd0/0xd0 [ 370.116345][ T44] linkwatch_event+0x7f/0xb0 [ 370.116420][ T44] ? __linkwatch_run_queue+0x850/0x850 [ 370.116489][ T44] process_one_work+0xdf8/0x1410 [ 370.116561][ T44] ? pwq_dec_nr_in_flight+0x710/0x710 [ 370.116632][ T44] ? lock_acquire.part.0+0xbc/0x260 [ 370.116703][ T44] worker_thread+0x4f1/0xd60 [ 370.116774][ T44] ? rescuer_thread+0x1320/0x1320 [ 370.116847][ T44] kthread+0x367/0x460 [ 370.116900][ T44] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 370.116993][ T44] ? kthread_affine_node+0x330/0x330 [ 370.117069][ T44] ret_from_fork+0x474/0x6b0 [ 370.117141][ T44] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 370.117229][ T44] ? __switch_to+0x5a3/0xe00 [ 370.117299][ T44] ? kthread_affine_node+0x330/0x330 [ 370.117373][ T44] ret_from_fork_asm+0x11/0x20 [ 370.117447][ T44] [ 370.117499][ T44] INFO: task kworker/u17:0:36 is blocked on a mutex likely owned by task kworker/u17:0:36. [ 370.117638][ T44] INFO: task bridge:330 blocked for more than 245 seconds. [ 370.117736][ T44] Not tainted 7.1.0-rc5-virtme #1 [ 370.117801][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 370.117914][ T44] task:bridge state:D stack:25840 pid:330 tgid:330 ppid:329 task_flags:0x400100 flags:0x00080000 [ 370.118069][ T44] Call Trace: [ 370.118121][ T44] [ 370.118156][ T44] __schedule+0xd65/0x1a70 [ 370.118224][ T44] ? io_schedule_timeout+0x140/0x140 [ 370.118292][ T44] ? rcu_is_watching+0x15/0xd0 [ 370.118363][ T44] ? do_raw_spin_unlock+0x59/0x250 [ 370.118435][ T44] ? lock_acquire+0x134/0x160 [ 370.118502][ T44] ? rcu_is_watching+0x15/0xd0 [ 370.118570][ T44] schedule+0xd8/0x260 [ 370.118621][ T44] schedule_preempt_disabled+0x18/0x30 [ 370.118689][ T44] __mutex_lock+0x6af/0x2010 [ 370.118758][ T44] ? rtnl_dump_ifinfo+0x983/0x1250 [ 370.118824][ T44] ? ww_mutex_lock+0x160/0x160 [ 370.118893][ T44] ? nla_get_range_signed+0x3d0/0x3d0 [ 370.118961][ T44] ? entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 370.119053][ T44] ? rcu_is_watching+0x15/0xd0 [ 370.119121][ T44] ? lock_acquire+0x134/0x160 [ 370.119188][ T44] ? __nla_validate_parse+0x20d/0x480 [ 370.119257][ T44] ? rtnl_dump_ifinfo+0x983/0x1250 [ 370.119326][ T44] rtnl_dump_ifinfo+0x983/0x1250 [ 370.119401][ T44] ? rtnl_fill_ifinfo.isra.0+0x2cd0/0x2cd0 [ 370.119483][ T44] ? stack_trace_save+0x93/0xc0 [ 370.119553][ T44] ? rcu_is_watching+0x15/0xd0 [ 370.119620][ T44] ? stack_depot_save_flags+0x1bb/0x770 [ 370.119690][ T44] ? trace_kmalloc+0xed/0x130 [ 370.119758][ T44] ? __kasan_kmalloc+0x7b/0x90 [ 370.119824][ T44] ? __kmalloc_node_track_caller_noprof+0x2f0/0x7b0 [ 370.119909][ T44] ? __asan_memset+0x27/0x50 [ 370.119977][ T44] ? __alloc_skb+0x342/0x5f0 [ 370.120052][ T44] ? __alloc_skb+0x4c2/0x5f0 [ 370.120119][ T44] ? napi_skb_cache_get+0x7b0/0x7b0 [ 370.120187][ T44] rtnl_dumpit+0x7b/0x1a0 [ 370.120240][ T44] netlink_dump+0x4b8/0x12b0 [ 370.120308][ T44] ? lock_acquire+0x134/0x160 [ 370.120376][ T44] ? ww_mutex_lock+0x160/0x160 [ 370.120449][ T44] ? netlink_lookup+0x1a0/0x1a0 [ 370.120516][ T44] ? rcu_is_watching+0x15/0xd0 [ 370.120582][ T44] __netlink_dump_start+0x635/0x8c0 [ 370.120649][ T44] ? rtnl_fill_ifinfo.isra.0+0x2cd0/0x2cd0 [ 370.120732][ T44] rtnetlink_rcv_msg+0x860/0xbd0 [ 370.120798][ T44] ? rtnl_link_fill+0x920/0x920 [ 370.120869][ T44] ? rtnl_unlock+0x10/0x10 [ 370.120939][ T44] ? rtnl_fill_ifinfo.isra.0+0x2cd0/0x2cd0 [ 370.121026][ T44] ? stack_depot_save_flags+0x1bb/0x770 [ 370.121092][ T44] netlink_rcv_skb+0x14e/0x3a0 [ 370.121164][ T44] ? rtnl_link_fill+0x920/0x920 [ 370.121231][ T44] ? lock_release+0x17c/0x1f0 [ 370.121296][ T44] ? netlink_ack+0xcf0/0xcf0 [ 370.121363][ T44] ? __netlink_lookup+0xb9/0x6b0 [ 370.121435][ T44] ? rcu_is_watching+0x15/0xd0 [ 370.121504][ T44] ? lock_release+0x17c/0x1f0 [ 370.121577][ T44] netlink_unicast+0x486/0x750 [ 370.121643][ T44] ? netlink_attachskb+0x810/0x810 [ 370.121711][ T44] netlink_sendmsg+0x735/0xc60 [ 370.121778][ T44] ? netlink_unicast+0x750/0x750 [ 370.121843][ T44] ? rcu_read_unlock+0x20/0x70 [ 370.121909][ T44] ? do_anonymous_page+0x268/0xd30 [ 370.121976][ T44] __sys_sendto+0x2c9/0x400 [ 370.122048][ T44] ? __ia32_sys_getpeername+0xd0/0xd0 [ 370.122115][ T44] ? __pmd_alloc+0x840/0x840 [ 370.122184][ T44] ? rcu_is_watching+0x15/0xd0 [ 370.122252][ T44] ? lock_release+0x17c/0x1f0 [ 370.122318][ T44] __x64_sys_sendto+0xe4/0x1f0 [ 370.122384][ T44] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 370.122470][ T44] ? trace_hardirqs_off_finish+0x15a/0x1c0 [ 370.122560][ T44] ? irqentry_exit+0x98/0x710 [ 370.122625][ T44] ? trace_hardirqs_on+0x36/0x40 [ 370.122692][ T44] do_syscall_64+0x117/0x590 [ 370.122759][ T44] ? trace_hardirqs_off+0xd/0x30 [ 370.122824][ T44] ? exc_page_fault+0xee/0x100 [ 370.122890][ T44] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 370.122970][ T44] RIP: 0033:0x7f75f660b08e [ 370.123049][ T44] RSP: 002b:00007ffec358dd10 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 370.123153][ T44] RAX: ffffffffffffffda RBX: 00007ffec358df78 RCX: 00007f75f660b08e [ 370.123253][ T44] RDX: 0000000000000028 RSI: 00007ffec358dd70 RDI: 0000000000000005 [ 370.123357][ T44] RBP: 00007ffec358dd20 R08: 0000000000000000 R09: 0000000000000000 [ 370.123464][ T44] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffec358df68 [ 370.123567][ T44] R13: 0000000000000009 R14: 00007f75f68af000 R15: 0000000000423c78 [ 370.123669][ T44] [ 370.123719][ T44] INFO: task bridge:330 is blocked on a mutex likely owned by task kworker/u17:0:36. [ 370.123835][ T44] INFO: lockdep is turned off. [ 492.989019][ T44] INFO: task kworker/u16:0:12 blocked for more than 245 seconds. [ 492.989206][ T44] Not tainted 7.1.0-rc5-virtme #1 [ 492.989288][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 492.989421][ T44] task:kworker/u16:0 state:D stack:26864 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000 [ 492.989600][ T44] Workqueue: ipv6_addrconf addrconf_verify_work [ 492.989703][ T44] Call Trace: [ 492.989767][ T44] [ 492.989810][ T44] __schedule+0xd65/0x1a70 [ 492.989895][ T44] ? io_schedule_timeout+0x140/0x140 [ 492.989976][ T44] ? rcu_is_watching+0x15/0xd0 [ 492.990066][ T44] ? do_raw_spin_unlock+0x59/0x250 [ 492.990147][ T44] ? lock_acquire+0x134/0x160 [ 492.990233][ T44] ? rcu_is_watching+0x15/0xd0 [ 492.990314][ T44] schedule+0xd8/0x260 [ 492.990385][ T44] schedule_preempt_disabled+0x18/0x30 [ 492.990465][ T44] __mutex_lock+0x6af/0x2010 [ 492.990545][ T44] ? rcu_read_lock_any_held+0x3c/0x90 [ 492.990626][ T44] ? addrconf_verify_work+0x12/0x30 [ 492.990706][ T44] ? rcu_is_watching+0x15/0xd0 [ 492.990787][ T44] ? ww_mutex_lock+0x160/0x160 [ 492.990866][ T44] ? _raw_spin_unlock_irqrestore+0x40/0x80 [ 492.990966][ T44] ? debug_object_deactivate+0x2f7/0x440 [ 492.991056][ T44] ? rcu_is_watching+0x15/0xd0 [ 492.991140][ T44] ? rcu_is_watching+0x15/0xd0 [ 492.991228][ T44] ? addrconf_verify_work+0x12/0x30 [ 492.991308][ T44] addrconf_verify_work+0x12/0x30 [ 492.991387][ T44] process_one_work+0xdf8/0x1410 [ 492.991469][ T44] ? pwq_dec_nr_in_flight+0x710/0x710 [ 492.991550][ T44] ? io_schedule_timeout+0x140/0x140 [ 492.991632][ T44] ? find_held_lock+0x2b/0x80 [ 492.991710][ T44] ? __rwlock_init+0x150/0x150 [ 492.991789][ T44] worker_thread+0x4f1/0xd60 [ 492.991868][ T44] ? rescuer_thread+0x1320/0x1320 [ 492.991945][ T44] kthread+0x367/0x460 [ 492.992004][ T44] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 492.992111][ T44] ? kthread_affine_node+0x330/0x330 [ 492.992195][ T44] ret_from_fork+0x474/0x6b0 [ 492.992274][ T44] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 492.992371][ T44] ? __switch_to+0x5a3/0xe00 [ 492.992448][ T44] ? kthread_affine_node+0x330/0x330 [ 492.992528][ T44] ret_from_fork_asm+0x11/0x20 [ 492.992613][ T44] [ 492.992676][ T44] INFO: task kworker/u16:0:12 is blocked on a mutex likely owned by task kworker/u17:0:36. [ 492.992825][ T44] INFO: task kworker/u17:0:36 blocked for more than 368 seconds. [ 492.992933][ T44] Not tainted 7.1.0-rc5-virtme #1 [ 492.993006][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 492.993135][ T44] task:kworker/u17:0 state:D stack:26376 pid:36 tgid:36 ppid:2 task_flags:0x4208060 flags:0x00080000 [ 492.993309][ T44] Workqueue: events_unbound linkwatch_event [ 492.993405][ T44] Call Trace: [ 492.993461][ T44] [ 492.993501][ T44] __schedule+0xd65/0x1a70 [ 492.993578][ T44] ? io_schedule_timeout+0x140/0x140 [ 492.993658][ T44] ? rcu_is_watching+0x15/0xd0 [ 492.993732][ T44] ? do_raw_spin_unlock+0x59/0x250 [ 492.993808][ T44] ? lock_acquire+0x134/0x160 [ 492.993885][ T44] ? rcu_is_watching+0x15/0xd0 [ 492.993961][ T44] schedule+0xd8/0x260 [ 492.994021][ T44] schedule_preempt_disabled+0x18/0x30 [ 492.994096][ T44] __mutex_lock+0x6af/0x2010 [ 492.994173][ T44] ? __ethtool_get_link_ksettings+0xa3/0x260 [ 492.994267][ T44] ? ww_mutex_lock+0x160/0x160 [ 492.994343][ T44] ? lock_acquire.part.0+0xbc/0x260 [ 492.994425][ T44] ? __lock_release.isra.0+0x6b/0x1a0 [ 492.994500][ T44] ? do_raw_read_unlock+0x70/0x70 [ 492.994576][ T44] ? rt6_multipath_rebalance+0x990/0x990 [ 492.994655][ T44] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160 [ 492.994751][ T44] ? lockdep_hardirqs_on+0x8c/0x130 [ 492.994824][ T44] ? __local_bh_enable_ip+0xa5/0x140 [ 492.994898][ T44] ? __local_bh_enable_ip+0xa5/0x140 [ 492.994973][ T44] ? fib6_walk+0x277/0x3d0 [ 492.995054][ T44] ? __ethtool_get_link_ksettings+0xa3/0x260 [ 492.995146][ T44] __ethtool_get_link_ksettings+0xa3/0x260 [ 492.995242][ T44] ? fib6_walk+0x3d0/0x3d0 [ 492.995318][ T44] port_cost+0xaf/0x1c0 [ 492.995376][ T44] ? br_multicast_flood+0x9a0/0x9a0 [ 492.995450][ T44] ? __lock_release.isra.0+0x6b/0x1a0 [ 492.995526][ T44] ? packet_notifier+0x1b8/0xbd0 [ 492.995601][ T44] br_port_carrier_check+0x30e/0x420 [ 492.995673][ T44] br_device_event+0x52d/0x8f0 [ 492.995745][ T44] ? fib6_ifdown+0x870/0x870 [ 492.995816][ T44] ? packet_sendmsg_spkt+0x14a0/0x14a0 [ 492.995890][ T44] notifier_call_chain+0xb0/0x320 [ 492.995964][ T44] netif_state_change+0x139/0x3d0 [ 492.996049][ T44] ? call_netdevice_notifiers_info+0xd0/0xd0 [ 492.996145][ T44] ? linkwatch_do_dev+0xae/0xd0 [ 492.996220][ T44] __linkwatch_run_queue+0x350/0x850 [ 492.996293][ T44] ? linkwatch_do_dev+0xd0/0xd0 [ 492.996366][ T44] linkwatch_event+0x7f/0xb0 [ 492.996438][ T44] ? __linkwatch_run_queue+0x850/0x850 [ 492.996510][ T44] process_one_work+0xdf8/0x1410 [ 492.996586][ T44] ? pwq_dec_nr_in_flight+0x710/0x710 [ 492.996658][ T44] ? lock_acquire.part.0+0xbc/0x260 [ 492.996730][ T44] worker_thread+0x4f1/0xd60 [ 492.996803][ T44] ? rescuer_thread+0x1320/0x1320 [ 492.996873][ T44] kthread+0x367/0x460 [ 492.996927][ T44] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 492.997017][ T44] ? kthread_affine_node+0x330/0x330 [ 492.997090][ T44] ret_from_fork+0x474/0x6b0 [ 492.997164][ T44] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 492.997250][ T44] ? __switch_to+0x5a3/0xe00 [ 492.997325][ T44] ? kthread_affine_node+0x330/0x330 [ 492.997396][ T44] ret_from_fork_asm+0x11/0x20 [ 492.997466][ T44] [ 492.997524][ T44] INFO: task kworker/u17:0:36 is blocked on a mutex likely owned by task kworker/u17:0:36. [ 492.997660][ T44] INFO: task bridge:330 blocked for more than 368 seconds. [ 492.997757][ T44] Not tainted 7.1.0-rc5-virtme #1 [ 492.997822][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 492.997933][ T44] task:bridge state:D stack:25840 pid:330 tgid:330 ppid:329 task_flags:0x400100 flags:0x00080000 [ 492.998092][ T44] Call Trace: [ 492.998143][ T44] [ 492.998184][ T44] __schedule+0xd65/0x1a70 [ 492.998254][ T44] ? io_schedule_timeout+0x140/0x140 [ 492.998329][ T44] ? rcu_is_watching+0x15/0xd0 [ 492.998399][ T44] ? do_raw_spin_unlock+0x59/0x250 [ 492.998468][ T44] ? lock_acquire+0x134/0x160 [ 492.998538][ T44] ? rcu_is_watching+0x15/0xd0 [ 492.998607][ T44] schedule+0xd8/0x260 [ 492.998661][ T44] schedule_preempt_disabled+0x18/0x30 [ 492.998734][ T44] __mutex_lock+0x6af/0x2010 [ 492.998806][ T44] ? rtnl_dump_ifinfo+0x983/0x1250 [ 492.998874][ T44] ? ww_mutex_lock+0x160/0x160 [ 492.998941][ T44] ? nla_get_range_signed+0x3d0/0x3d0 [ 492.999007][ T44] ? entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 492.999096][ T44] ? rcu_is_watching+0x15/0xd0 [ 492.999170][ T44] ? lock_acquire+0x134/0x160 [ 492.999237][ T44] ? __nla_validate_parse+0x20d/0x480 [ 492.999305][ T44] ? rtnl_dump_ifinfo+0x983/0x1250 [ 492.999372][ T44] rtnl_dump_ifinfo+0x983/0x1250 [ 492.999439][ T44] ? rtnl_fill_ifinfo.isra.0+0x2cd0/0x2cd0 [ 492.999522][ T44] ? stack_trace_save+0x93/0xc0 [ 492.999591][ T44] ? rcu_is_watching+0x15/0xd0 [ 492.999660][ T44] ? stack_depot_save_flags+0x1bb/0x770 [ 492.999732][ T44] ? trace_kmalloc+0xed/0x130 [ 492.999799][ T44] ? __kasan_kmalloc+0x7b/0x90 [ 492.999866][ T44] ? __kmalloc_node_track_caller_noprof+0x2f0/0x7b0 [ 492.999950][ T44] ? __asan_memset+0x27/0x50 [ 493.000018][ T44] ? __alloc_skb+0x342/0x5f0 [ 493.000085][ T44] ? __alloc_skb+0x4c2/0x5f0 [ 493.000156][ T44] ? napi_skb_cache_get+0x7b0/0x7b0 [ 493.000223][ T44] rtnl_dumpit+0x7b/0x1a0 [ 493.000274][ T44] netlink_dump+0x4b8/0x12b0 [ 493.000347][ T44] ? lock_acquire+0x134/0x160 [ 493.000419][ T44] ? ww_mutex_lock+0x160/0x160 [ 493.000486][ T44] ? netlink_lookup+0x1a0/0x1a0 [ 493.000554][ T44] ? rcu_is_watching+0x15/0xd0 [ 493.000626][ T44] __netlink_dump_start+0x635/0x8c0 [ 493.000701][ T44] ? rtnl_fill_ifinfo.isra.0+0x2cd0/0x2cd0 [ 493.000781][ T44] rtnetlink_rcv_msg+0x860/0xbd0 [ 493.000848][ T44] ? rtnl_link_fill+0x920/0x920 [ 493.000914][ T44] ? rtnl_unlock+0x10/0x10 [ 493.000980][ T44] ? rtnl_fill_ifinfo.isra.0+0x2cd0/0x2cd0 [ 493.001064][ T44] ? stack_depot_save_flags+0x1bb/0x770 [ 493.001131][ T44] netlink_rcv_skb+0x14e/0x3a0 [ 493.001206][ T44] ? rtnl_link_fill+0x920/0x920 [ 493.001272][ T44] ? lock_release+0x17c/0x1f0 [ 493.001338][ T44] ? netlink_ack+0xcf0/0xcf0 [ 493.001403][ T44] ? __netlink_lookup+0xb9/0x6b0 [ 493.001472][ T44] ? rcu_is_watching+0x15/0xd0 [ 493.001538][ T44] ? lock_release+0x17c/0x1f0 [ 493.001603][ T44] netlink_unicast+0x486/0x750 [ 493.001669][ T44] ? netlink_attachskb+0x810/0x810 [ 493.001736][ T44] netlink_sendmsg+0x735/0xc60 [ 493.001803][ T44] ? netlink_unicast+0x750/0x750 [ 493.001869][ T44] ? rcu_read_unlock+0x20/0x70 [ 493.001935][ T44] ? do_anonymous_page+0x268/0xd30 [ 493.002001][ T44] __sys_sendto+0x2c9/0x400 [ 493.002072][ T44] ? __ia32_sys_getpeername+0xd0/0xd0 [ 493.002138][ T44] ? __pmd_alloc+0x840/0x840 [ 493.002208][ T44] ? rcu_is_watching+0x15/0xd0 [ 493.002277][ T44] ? lock_release+0x17c/0x1f0 [ 493.002343][ T44] __x64_sys_sendto+0xe4/0x1f0 [ 493.002410][ T44] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 493.002492][ T44] ? trace_hardirqs_off_finish+0x15a/0x1c0 [ 493.002574][ T44] ? irqentry_exit+0x98/0x710 [ 493.002639][ T44] ? trace_hardirqs_on+0x36/0x40 [ 493.002705][ T44] do_syscall_64+0x117/0x590 [ 493.002773][ T44] ? trace_hardirqs_off+0xd/0x30 [ 493.002843][ T44] ? exc_page_fault+0xee/0x100 [ 493.002909][ T44] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 493.002991][ T44] RIP: 0033:0x7f75f660b08e [ 493.003068][ T44] RSP: 002b:00007ffec358dd10 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 493.003172][ T44] RAX: ffffffffffffffda RBX: 00007ffec358df78 RCX: 00007f75f660b08e [ 493.003272][ T44] RDX: 0000000000000028 RSI: 00007ffec358dd70 RDI: 0000000000000005 [ 493.003375][ T44] RBP: 00007ffec358dd20 R08: 0000000000000000 R09: 0000000000000000 [ 493.003480][ T44] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffec358df68 [ 493.003579][ T44] R13: 0000000000000009 R14: 00007f75f68af000 R15: 0000000000423c78 [ 493.003686][ T44] [ 493.003737][ T44] INFO: task bridge:330 is blocked on a mutex likely owned by task kworker/u17:0:36. [ 493.003848][ T44] INFO: lockdep is turned off. [ 615.869019][ T44] INFO: task kworker/u16:0:12 blocked for more than 368 seconds. [ 615.869201][ T44] Not tainted 7.1.0-rc5-virtme #1 [ 615.869282][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 615.869416][ T44] task:kworker/u16:0 state:D stack:26864 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000 [ 615.869597][ T44] Workqueue: ipv6_addrconf addrconf_verify_work [ 615.869699][ T44] Call Trace: [ 615.869760][ T44] [ 615.869804][ T44] __schedule+0xd65/0x1a70 [ 615.869892][ T44] ? io_schedule_timeout+0x140/0x140 [ 615.869980][ T44] ? rcu_is_watching+0x15/0xd0 [ 615.870075][ T44] ? do_raw_spin_unlock+0x59/0x250 [ 615.870157][ T44] ? lock_acquire+0x134/0x160 [ 615.870243][ T44] ? rcu_is_watching+0x15/0xd0 [ 615.870325][ T44] schedule+0xd8/0x260 [ 615.870386][ T44] schedule_preempt_disabled+0x18/0x30 [ 615.870473][ T44] __mutex_lock+0x6af/0x2010 [ 615.870555][ T44] ? rcu_read_lock_any_held+0x3c/0x90 [ 615.870639][ T44] ? addrconf_verify_work+0x12/0x30 [ 615.870721][ T44] ? rcu_is_watching+0x15/0xd0 [ 615.870801][ T44] ? ww_mutex_lock+0x160/0x160 [ 615.870880][ T44] ? _raw_spin_unlock_irqrestore+0x40/0x80 [ 615.870981][ T44] ? debug_object_deactivate+0x2f7/0x440 [ 615.871068][ T44] ? rcu_is_watching+0x15/0xd0 [ 615.871149][ T44] ? rcu_is_watching+0x15/0xd0 [ 615.871230][ T44] ? addrconf_verify_work+0x12/0x30 [ 615.871314][ T44] addrconf_verify_work+0x12/0x30 [ 615.871395][ T44] process_one_work+0xdf8/0x1410 [ 615.871475][ T44] ? pwq_dec_nr_in_flight+0x710/0x710 [ 615.871555][ T44] ? io_schedule_timeout+0x140/0x140 [ 615.871635][ T44] ? find_held_lock+0x2b/0x80 [ 615.871715][ T44] ? __rwlock_init+0x150/0x150 [ 615.871794][ T44] worker_thread+0x4f1/0xd60 [ 615.871880][ T44] ? rescuer_thread+0x1320/0x1320 [ 615.871960][ T44] kthread+0x367/0x460 [ 615.872022][ T44] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 615.872118][ T44] ? kthread_affine_node+0x330/0x330 [ 615.872195][ T44] ret_from_fork+0x474/0x6b0 [ 615.872273][ T44] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 615.872370][ T44] ? __switch_to+0x5a3/0xe00 [ 615.872450][ T44] ? kthread_affine_node+0x330/0x330 [ 615.872528][ T44] ret_from_fork_asm+0x11/0x20 [ 615.872608][ T44] [ 615.872669][ T44] INFO: task kworker/u16:0:12 is blocked on a mutex likely owned by task kworker/u17:0:36. [ 615.872815][ T44] INFO: task kworker/u17:0:36 blocked for more than 491 seconds. [ 615.872922][ T44] Not tainted 7.1.0-rc5-virtme #1 [ 615.872995][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 615.873121][ T44] task:kworker/u17:0 state:D stack:26376 pid:36 tgid:36 ppid:2 task_flags:0x4208060 flags:0x00080000 [ 615.873285][ T44] Workqueue: events_unbound linkwatch_event [ 615.873378][ T44] Call Trace: [ 615.873434][ T44] [ 615.873474][ T44] __schedule+0xd65/0x1a70 [ 615.873552][ T44] ? io_schedule_timeout+0x140/0x140 [ 615.873632][ T44] ? rcu_is_watching+0x15/0xd0 [ 615.873711][ T44] ? do_raw_spin_unlock+0x59/0x250 [ 615.873786][ T44] ? lock_acquire+0x134/0x160 [ 615.873859][ T44] ? rcu_is_watching+0x15/0xd0 [ 615.873936][ T44] schedule+0xd8/0x260 [ 615.873993][ T44] schedule_preempt_disabled+0x18/0x30 [ 615.874086][ T44] __mutex_lock+0x6af/0x2010 [ 615.874160][ T44] ? __ethtool_get_link_ksettings+0xa3/0x260 [ 615.874257][ T44] ? ww_mutex_lock+0x160/0x160 [ 615.874330][ T44] ? lock_acquire.part.0+0xbc/0x260 [ 615.874404][ T44] ? __lock_release.isra.0+0x6b/0x1a0 [ 615.874477][ T44] ? do_raw_read_unlock+0x70/0x70 [ 615.874551][ T44] ? rt6_multipath_rebalance+0x990/0x990 [ 615.874627][ T44] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160 [ 615.874719][ T44] ? lockdep_hardirqs_on+0x8c/0x130 [ 615.874792][ T44] ? __local_bh_enable_ip+0xa5/0x140 [ 615.874865][ T44] ? __local_bh_enable_ip+0xa5/0x140 [ 615.874940][ T44] ? fib6_walk+0x277/0x3d0 [ 615.875018][ T44] ? __ethtool_get_link_ksettings+0xa3/0x260 [ 615.875108][ T44] __ethtool_get_link_ksettings+0xa3/0x260 [ 615.875201][ T44] ? fib6_walk+0x3d0/0x3d0 [ 615.875274][ T44] port_cost+0xaf/0x1c0 [ 615.875328][ T44] ? br_multicast_flood+0x9a0/0x9a0 [ 615.875401][ T44] ? __lock_release.isra.0+0x6b/0x1a0 [ 615.875474][ T44] ? packet_notifier+0x1b8/0xbd0 [ 615.875549][ T44] br_port_carrier_check+0x30e/0x420 [ 615.875622][ T44] br_device_event+0x52d/0x8f0 [ 615.875697][ T44] ? fib6_ifdown+0x870/0x870 [ 615.875769][ T44] ? packet_sendmsg_spkt+0x14a0/0x14a0 [ 615.875841][ T44] notifier_call_chain+0xb0/0x320 [ 615.875916][ T44] netif_state_change+0x139/0x3d0 [ 615.875988][ T44] ? call_netdevice_notifiers_info+0xd0/0xd0 [ 615.876083][ T44] ? linkwatch_do_dev+0xae/0xd0 [ 615.876154][ T44] __linkwatch_run_queue+0x350/0x850 [ 615.876227][ T44] ? linkwatch_do_dev+0xd0/0xd0 [ 615.876298][ T44] linkwatch_event+0x7f/0xb0 [ 615.876369][ T44] ? __linkwatch_run_queue+0x850/0x850 [ 615.876440][ T44] process_one_work+0xdf8/0x1410 [ 615.876512][ T44] ? pwq_dec_nr_in_flight+0x710/0x710 [ 615.876583][ T44] ? lock_acquire.part.0+0xbc/0x260 [ 615.876656][ T44] worker_thread+0x4f1/0xd60 [ 615.876732][ T44] ? rescuer_thread+0x1320/0x1320 [ 615.876801][ T44] kthread+0x367/0x460 [ 615.876854][ T44] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 615.876950][ T44] ? kthread_affine_node+0x330/0x330 [ 615.877022][ T44] ret_from_fork+0x474/0x6b0 [ 615.877093][ T44] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 615.877180][ T44] ? __switch_to+0x5a3/0xe00 [ 615.877257][ T44] ? kthread_affine_node+0x330/0x330 [ 615.877328][ T44] ret_from_fork_asm+0x11/0x20 [ 615.877399][ T44] [ 615.877452][ T44] INFO: task kworker/u17:0:36 is blocked on a mutex likely owned by task kworker/u17:0:36. [ 615.877587][ T44] Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings [ 615.877710][ T44] INFO: lockdep is turned off. WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr