======================================
| [ 16.647748][ T38] #2: ffffffffad6b4040 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event (net/core/link_watch.c:313)
| [ 16.647883][ T38] #3: ff11000005f09d68 (&dev_instance_lock_key#2){+.+.}-{4:4}, at: __linkwatch_run_queue (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/core/link_watch.c:239)
| [ 16.648040][ T38]
| [ 16.648040][ T38] stack backtrace:
[ 16.648139][ T38] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 16.648141][ T38] Workqueue: events_unbound linkwatch_event
[ 16.648144][ T38] Call Trace:
[ 16.648146][ T38]
[ 16.648148][ T38] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[ 16.648152][ T38] print_deadlock_bug.cold (kernel/locking/lockdep.c:3041)
[ 16.648155][ T38] validate_chain (kernel/locking/lockdep.c:3093 kernel/locking/lockdep.c:3895)
[ 16.648159][ T38] __lock_acquire (kernel/locking/lockdep.c:5237)
[ 16.648161][ T38] lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 16.648162][ T38] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 16.648164][ T38] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 16.648168][ T38] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 16.648169][ T38] __mutex_lock (kernel/locking/mutex.c:646 kernel/locking/mutex.c:820)
[ 16.648173][ T38] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 16.648175][ T38] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 16.648176][ T38] ? inet6_dump_fib (net/ipv6/ip6_fib.c:564 net/ipv6/ip6_fib.c:727)
[ 16.648180][ T38] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 16.648182][ T38] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 16.648183][ T38] ? find_held_lock (kernel/locking/lockdep.c:5350)
[ 16.648185][ T38] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 16.648186][ T38] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[ 16.648189][ T38] ? rt6_multipath_rebalance (./include/net/addrconf.h:348 (discriminator 4))
[ 16.648190][ T38] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[ 16.648192][ T38] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[ 16.648194][ T38] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 16.648196][ T38] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 16.648197][ T38] ? fib6_walk (net/ipv6/ip6_fib.c:89 net/ipv6/ip6_fib.c:2229)
[ 16.648200][ T38] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 16.648201][ T38] __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 16.648202][ T38] ? fib6_walk (./include/linux/list.h:262 net/ipv6/ip6_fib.c:88 net/ipv6/ip6_fib.c:2229)
[ 16.648204][ T38] port_cost (net/bridge/br_if.c:39)
[ 16.648207][ T38] ? br_multicast_flood (??:?)
[ 16.648209][ T38] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 16.648211][ T38] ? packet_notifier (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/packet/af_packet.c:4234 (discriminator 2))
[ 16.648214][ T38] br_port_carrier_check (net/bridge/br_if.c:80)
[ 16.648216][ T38] br_device_event (net/bridge/br.c:101)
[ 16.648218][ T38] ? fib6_ifdown (net/ipv6/route.c:4962)
[ 16.648219][ T38] ? packet_sendmsg_spkt (af_packet.c:?)
[ 16.648222][ T38] notifier_call_chain (kernel/notifier.c:85)
[ 16.648225][ T38] netif_state_change (net/core/dev.c:1603)
[ 16.648228][ T38] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[ 16.648231][ T38] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[ 16.648232][ T38] __linkwatch_run_queue (net/core/link_watch.c:240)
[ 16.648234][ T38] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 16.648236][ T38] linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[ 16.648238][ T38] ? __linkwatch_run_queue (net/core/link_watch.c:213)
[ 16.648239][ T38] process_one_work (kernel/workqueue.c:3314)
[ 16.648242][ T38] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 16.648244][ T38] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 16.648247][ T38] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 16.648250][ T38] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 16.648251][ T38] kthread (kernel/kthread.c:436)
[ 16.648253][ T38] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 16.648256][ T38] ? kthread_affine_node (kernel/kthread.c:378)
[ 16.648258][ T38] ret_from_fork (arch/x86/kernel/process.c:158)
[ 16.648261][ T38] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 16.648264][ T38] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 16.648266][ T38] ? kthread_affine_node (kernel/kthread.c:378)
[ 16.648268][ T38] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 16.648272][ T38]
[ 247.226443][ T44] INFO: task kworker/u16:0:12 blocked for more than 122 seconds.
[ 247.226651][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 247.226747][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 247.226863][ T44] task:kworker/u16:0 state:D stack:25712 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 247.227031][ T44] Workqueue: ipv6_addrconf addrconf_verify_work
[ 247.227127][ T44] Call Trace:
[ 247.227186][ T44]
[ 247.227232][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 247.227315][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 247.227384][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.227475][ T44] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 247.227546][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 247.227616][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.227685][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 247.227739][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 247.227812][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 247.227888][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 247.227960][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.228031][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 247.228102][ T44] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[ 247.228187][ T44] ? debug_object_deactivate (lib/debugobjects.c:915 (discriminator 3))
[ 247.228260][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.228334][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.228404][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 247.228477][ T44] addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 247.228548][ T44] process_one_work (kernel/workqueue.c:3314)
[ 247.228623][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 247.228692][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 247.228760][ T44] ? find_held_lock (kernel/locking/lockdep.c:5350)
[ 247.228832][ T44] ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[ 247.228905][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 247.228975][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 247.229044][ T44] kthread (kernel/kthread.c:436)
[ 247.229097][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 247.229190][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 247.229258][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 247.229330][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 247.229426][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 247.229497][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 247.229566][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 247.229638][ T44]
| [ 247.229697][ T44] INFO: task kworker/u16:0:12 is blocked on a mutex likely owned by task kworker/u19:0:38.
[ 247.229831][ T44] INFO: task kworker/u19:0:38 blocked for more than 122 seconds.
[ 247.229936][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 247.230001][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 247.230114][ T44] task:kworker/u19:0 state:D stack:26376 pid:38 tgid:38 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 247.230267][ T44] Workqueue: events_unbound linkwatch_event
[ 247.230354][ T44] Call Trace:
[ 247.230412][ T44]
[ 247.230452][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 247.230521][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 247.230592][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.230662][ T44] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 247.230734][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 247.230806][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.230880][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 247.230938][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 247.231007][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 247.231077][ T44] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 247.231169][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 247.231242][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 247.231311][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 247.231380][ T44] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[ 247.231458][ T44] ? rt6_multipath_rebalance (./include/net/addrconf.h:348 (discriminator 4))
[ 247.231529][ T44] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[ 247.231615][ T44] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[ 247.231683][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 247.231753][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 247.231823][ T44] ? fib6_walk (net/ipv6/ip6_fib.c:89 net/ipv6/ip6_fib.c:2229)
[ 247.231903][ T44] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 247.231988][ T44] __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 247.232073][ T44] ? fib6_walk (./include/linux/list.h:262 net/ipv6/ip6_fib.c:88 net/ipv6/ip6_fib.c:2229)
[ 247.232142][ T44] port_cost (net/bridge/br_if.c:39)
[ 247.232196][ T44] ? br_multicast_flood (??:?)
[ 247.232270][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 247.232339][ T44] ? packet_notifier (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/packet/af_packet.c:4234 (discriminator 2))
[ 247.232412][ T44] br_port_carrier_check (net/bridge/br_if.c:80)
[ 247.232487][ T44] br_device_event (net/bridge/br.c:101)
[ 247.232557][ T44] ? fib6_ifdown (net/ipv6/route.c:4962)
[ 247.232625][ T44] ? packet_sendmsg_spkt (af_packet.c:?)
[ 247.232695][ T44] notifier_call_chain (kernel/notifier.c:85)
[ 247.232763][ T44] netif_state_change (net/core/dev.c:1603)
[ 247.232834][ T44] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[ 247.232927][ T44] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[ 247.232999][ T44] __linkwatch_run_queue (net/core/link_watch.c:240)
[ 247.233069][ T44] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 247.233138][ T44] linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[ 247.233208][ T44] ? __linkwatch_run_queue (net/core/link_watch.c:213)
[ 247.233277][ T44] process_one_work (kernel/workqueue.c:3314)
[ 247.233347][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 247.233414][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 247.233490][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 247.233559][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 247.233627][ T44] kthread (kernel/kthread.c:436)
[ 247.233680][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 247.233764][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 247.233833][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 247.233906][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 247.233993][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 247.234062][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 247.234130][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 247.234200][ T44]
| [ 247.234251][ T44] INFO: task kworker/u19:0:38 is blocked on a mutex likely owned by task kworker/u19:0:38.
[ 247.234399][ T44] INFO: task bridge:331 blocked for more than 122 seconds.
[ 247.234503][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 247.234569][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 247.234681][ T44] task:bridge state:D stack:25840 pid:331 tgid:331 ppid:330 task_flags:0x400100 flags:0x00080000
[ 247.234829][ T44] Call Trace:
[ 247.234884][ T44]
[ 247.234920][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 247.234998][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 247.235068][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.235136][ T44] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 247.235205][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 247.235273][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.235343][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 247.235396][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 247.235473][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 247.235544][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 247.235613][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 247.235683][ T44] ? nla_get_range_signed (lib/nlattr.c:270)
[ 247.235754][ T44] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 247.235842][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.235915][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 247.235984][ T44] ? __nla_validate_parse (lib/nlattr.c:635)
[ 247.236056][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 247.236123][ T44] rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 247.236193][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 247.236278][ T44] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[ 247.236348][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.236421][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 247.236494][ T44] ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[ 247.236567][ T44] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[ 247.236638][ T44] ? __kmalloc_node_track_caller_noprof (mm/slub.c:5297 mm/slub.c:5408)
[ 247.236729][ T44] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[ 247.236800][ T44] ? __alloc_skb (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:67 net/core/skbuff.c:408 net/core/skbuff.c:720)
[ 247.236874][ T44] ? __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:695 (discriminator 2))
[ 247.236945][ T44] ? napi_skb_cache_get (./include/linux/local_lock_internal.h:61)
[ 247.237016][ T44] rtnl_dumpit (net/core/rtnetlink.c:6931)
[ 247.237074][ T44] netlink_dump (net/netlink/af_netlink.c:2331)
[ 247.237145][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 247.237215][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 247.237286][ T44] ? netlink_lookup (./include/linux/refcount.h:291)
[ 247.237356][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.237429][ T44] __netlink_dump_start (net/netlink/af_netlink.c:2446)
[ 247.237500][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 247.237586][ T44] rtnetlink_rcv_msg (./include/linux/netlink.h:341 net/core/rtnetlink.c:6960 net/core/rtnetlink.c:7027)
[ 247.237659][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 247.237728][ T44] ? rtnl_unlock (net/core/rtnetlink.c:157)
[ 247.237798][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 247.237889][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 247.237958][ T44] netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[ 247.238027][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 247.238095][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 247.238170][ T44] ? netlink_ack (./include/linux/skbuff.h:2720)
[ 247.238239][ T44] ? __netlink_lookup (./include/linux/rcupdate.h:839 ./include/linux/rhashtable.h:708 net/netlink/af_netlink.c:499)
[ 247.238308][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.238376][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 247.238451][ T44] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[ 247.238521][ T44] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 247.238592][ T44] netlink_sendmsg (net/netlink/af_netlink.c:1900)
[ 247.238662][ T44] ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[ 247.238734][ T44] ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 6))
[ 247.238804][ T44] ? do_anonymous_page (./include/linux/pgtable.h:117 mm/memory.c:5433)
[ 247.238883][ T44] __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[ 247.238956][ T44] ? __ia32_sys_getpeername (net/socket.c:2219)
[ 247.239027][ T44] ? __pmd_alloc (./include/linux/mm.h:1682)
[ 247.239099][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.239168][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 247.239238][ T44] __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[ 247.239310][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 247.239397][ T44] ? trace_hardirqs_off_finish (./include/trace/events/preemptirq.h:36 (discriminator 22) kernel/trace/trace_preemptirq.c:95 (discriminator 22) kernel/trace/trace_preemptirq.c:90 (discriminator 22))
[ 247.239489][ T44] ? irqentry_exit (./include/linux/irq-entry-common.h:272 ./include/linux/irq-entry-common.h:317 kernel/entry/common.c:162)
[ 247.239558][ T44] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[ 247.239628][ T44] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[ 247.239697][ T44] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[ 247.239766][ T44] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[ 247.239833][ T44] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 247.239927][ T44] RIP: 0033:0x7f37a2e1b08e
[ 247.240004][ T44] RSP: 002b:00007fffdc16c550 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 247.240111][ T44] RAX: ffffffffffffffda RBX: 00007fffdc16c7b8 RCX: 00007f37a2e1b08e
[ 247.240221][ T44] RDX: 0000000000000028 RSI: 00007fffdc16c5b0 RDI: 0000000000000005
[ 247.240327][ T44] RBP: 00007fffdc16c560 R08: 0000000000000000 R09: 0000000000000000
[ 247.240441][ T44] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffdc16c7a8
[ 247.240546][ T44] R13: 0000000000000009 R14: 00007f37a30bf000 R15: 0000000000423c78
| [ 247.240652][ T44]
| [ 247.240705][ T44] INFO: task bridge:331 is blocked on a mutex likely owned by task kworker/u19:0:38.
| [ 247.240826][ T44] INFO: lockdep is turned off.
[ 370.106444][ T44] INFO: task kworker/u16:0:12 blocked for more than 245 seconds.
[ 370.106657][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 370.106732][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 370.106849][ T44] task:kworker/u16:0 state:D stack:25712 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 370.107024][ T44] Workqueue: ipv6_addrconf addrconf_verify_work
[ 370.107127][ T44] Call Trace:
[ 370.107184][ T44]
[ 370.107226][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 370.107311][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 370.107404][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.107493][ T44] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 370.107566][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 370.107639][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.107713][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 370.107767][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 370.107842][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 370.107918][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 370.107993][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.108066][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 370.108137][ T44] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[ 370.108222][ T44] ? debug_object_deactivate (lib/debugobjects.c:915 (discriminator 3))
[ 370.108297][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.108365][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.108443][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 370.108517][ T44] addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 370.108586][ T44] process_one_work (kernel/workqueue.c:3314)
[ 370.108663][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 370.108732][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 370.108801][ T44] ? find_held_lock (kernel/locking/lockdep.c:5350)
[ 370.108872][ T44] ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[ 370.108948][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 370.109018][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 370.109088][ T44] kthread (kernel/kthread.c:436)
[ 370.109140][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 370.109230][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 370.109299][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 370.109370][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 370.109459][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 370.109531][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 370.109602][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 370.109674][ T44]
| [ 370.109733][ T44] INFO: task kworker/u16:0:12 is blocked on a mutex likely owned by task kworker/u19:0:38.
[ 370.109871][ T44] INFO: task kworker/u19:0:38 blocked for more than 245 seconds.
[ 370.109974][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 370.110039][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 370.110152][ T44] task:kworker/u19:0 state:D stack:26376 pid:38 tgid:38 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 370.110308][ T44] Workqueue: events_unbound linkwatch_event
[ 370.110396][ T44] Call Trace:
[ 370.110454][ T44]
[ 370.110490][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 370.110559][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 370.110631][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.110701][ T44] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 370.110769][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 370.110838][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.110913][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 370.110966][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 370.111036][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 370.111111][ T44] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 370.111199][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 370.111269][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 370.111338][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 370.111406][ T44] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[ 370.111481][ T44] ? rt6_multipath_rebalance (./include/net/addrconf.h:348 (discriminator 4))
[ 370.111552][ T44] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[ 370.111639][ T44] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[ 370.111710][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 370.111781][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 370.111850][ T44] ? fib6_walk (net/ipv6/ip6_fib.c:89 net/ipv6/ip6_fib.c:2229)
[ 370.111926][ T44] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 370.112011][ T44] __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 370.112100][ T44] ? fib6_walk (./include/linux/list.h:262 net/ipv6/ip6_fib.c:88 net/ipv6/ip6_fib.c:2229)
[ 370.112168][ T44] port_cost (net/bridge/br_if.c:39)
[ 370.112222][ T44] ? br_multicast_flood (??:?)
[ 370.112293][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 370.112364][ T44] ? packet_notifier (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/packet/af_packet.c:4234 (discriminator 2))
[ 370.112439][ T44] br_port_carrier_check (net/bridge/br_if.c:80)
[ 370.112509][ T44] br_device_event (net/bridge/br.c:101)
[ 370.112580][ T44] ? fib6_ifdown (net/ipv6/route.c:4962)
[ 370.112650][ T44] ? packet_sendmsg_spkt (af_packet.c:?)
[ 370.112724][ T44] notifier_call_chain (kernel/notifier.c:85)
[ 370.112799][ T44] netif_state_change (net/core/dev.c:1603)
[ 370.112874][ T44] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[ 370.112968][ T44] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[ 370.113039][ T44] __linkwatch_run_queue (net/core/link_watch.c:240)
[ 370.113111][ T44] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 370.113182][ T44] linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[ 370.113252][ T44] ? __linkwatch_run_queue (net/core/link_watch.c:213)
[ 370.113321][ T44] process_one_work (kernel/workqueue.c:3314)
[ 370.113391][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 370.113467][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 370.113537][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 370.113609][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 370.113679][ T44] kthread (kernel/kthread.c:436)
[ 370.113732][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 370.113821][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 370.113895][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 370.113966][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 370.114055][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 370.114125][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 370.114197][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 370.114267][ T44]
| [ 370.114321][ T44] INFO: task kworker/u19:0:38 is blocked on a mutex likely owned by task kworker/u19:0:38.
[ 370.114467][ T44] INFO: task bridge:331 blocked for more than 245 seconds.
[ 370.114569][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 370.114635][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 370.114763][ T44] task:bridge state:D stack:25840 pid:331 tgid:331 ppid:330 task_flags:0x400100 flags:0x00080000
[ 370.114925][ T44] Call Trace:
[ 370.114977][ T44]
[ 370.115012][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 370.115082][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 370.115151][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.115223][ T44] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 370.115292][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 370.115362][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.115435][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 370.115489][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 370.115559][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 370.115629][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 370.115705][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 370.115776][ T44] ? nla_get_range_signed (lib/nlattr.c:270)
[ 370.115846][ T44] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 370.115939][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.116009][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 370.116079][ T44] ? __nla_validate_parse (lib/nlattr.c:635)
[ 370.116148][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 370.116218][ T44] rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 370.116289][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 370.116377][ T44] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[ 370.116453][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.116524][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 370.116598][ T44] ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[ 370.116675][ T44] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[ 370.116749][ T44] ? __kmalloc_node_track_caller_noprof (mm/slub.c:5297 mm/slub.c:5408)
[ 370.116842][ T44] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[ 370.116921][ T44] ? __alloc_skb (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:67 net/core/skbuff.c:408 net/core/skbuff.c:720)
[ 370.116996][ T44] ? __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:695 (discriminator 2))
[ 370.117068][ T44] ? napi_skb_cache_get (./include/linux/local_lock_internal.h:61)
[ 370.117139][ T44] rtnl_dumpit (net/core/rtnetlink.c:6931)
[ 370.117197][ T44] netlink_dump (net/netlink/af_netlink.c:2331)
[ 370.117272][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 370.117347][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 370.117424][ T44] ? netlink_lookup (./include/linux/refcount.h:291)
[ 370.117498][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.117570][ T44] __netlink_dump_start (net/netlink/af_netlink.c:2446)
[ 370.117641][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 370.117732][ T44] rtnetlink_rcv_msg (./include/linux/netlink.h:341 net/core/rtnetlink.c:6960 net/core/rtnetlink.c:7027)
[ 370.117802][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 370.117876][ T44] ? rtnl_unlock (net/core/rtnetlink.c:157)
[ 370.117964][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 370.118051][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 370.118125][ T44] netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[ 370.118196][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 370.118266][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 370.118337][ T44] ? netlink_ack (./include/linux/skbuff.h:2720)
[ 370.118406][ T44] ? __netlink_lookup (./include/linux/rcupdate.h:839 ./include/linux/rhashtable.h:708 net/netlink/af_netlink.c:499)
[ 370.118484][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.118559][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 370.118632][ T44] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[ 370.118704][ T44] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 370.118773][ T44] netlink_sendmsg (net/netlink/af_netlink.c:1900)
[ 370.118843][ T44] ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[ 370.118919][ T44] ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 6))
[ 370.118993][ T44] ? do_anonymous_page (./include/linux/pgtable.h:117 mm/memory.c:5433)
[ 370.119066][ T44] __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[ 370.119141][ T44] ? __ia32_sys_getpeername (net/socket.c:2219)
[ 370.119214][ T44] ? __pmd_alloc (./include/linux/mm.h:1682)
[ 370.119287][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.119362][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 370.119436][ T44] __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[ 370.119505][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 370.119593][ T44] ? trace_hardirqs_off_finish (./include/trace/events/preemptirq.h:36 (discriminator 22) kernel/trace/trace_preemptirq.c:95 (discriminator 22) kernel/trace/trace_preemptirq.c:90 (discriminator 22))
[ 370.119683][ T44] ? irqentry_exit (./include/linux/irq-entry-common.h:272 ./include/linux/irq-entry-common.h:317 kernel/entry/common.c:162)
[ 370.119754][ T44] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[ 370.119824][ T44] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[ 370.119901][ T44] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[ 370.119972][ T44] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[ 370.120043][ T44] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 370.120130][ T44] RIP: 0033:0x7f37a2e1b08e
[ 370.120208][ T44] RSP: 002b:00007fffdc16c550 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 370.120323][ T44] RAX: ffffffffffffffda RBX: 00007fffdc16c7b8 RCX: 00007f37a2e1b08e
[ 370.120438][ T44] RDX: 0000000000000028 RSI: 00007fffdc16c5b0 RDI: 0000000000000005
[ 370.120545][ T44] RBP: 00007fffdc16c560 R08: 0000000000000000 R09: 0000000000000000
[ 370.120651][ T44] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffdc16c7a8
[ 370.120762][ T44] R13: 0000000000000009 R14: 00007f37a30bf000 R15: 0000000000423c78
| [ 370.120880][ T44]
| [ 370.120940][ T44] INFO: task bridge:331 is blocked on a mutex likely owned by task kworker/u19:0:38.
| [ 370.121062][ T44] INFO: lockdep is turned off.
[ 492.986439][ T44] INFO: task kworker/u16:0:12 blocked for more than 368 seconds.
[ 492.986665][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 492.986741][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 492.986866][ T44] task:kworker/u16:0 state:D stack:25712 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 492.987041][ T44] Workqueue: ipv6_addrconf addrconf_verify_work
[ 492.987144][ T44] Call Trace:
[ 492.987203][ T44]
[ 492.987242][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 492.987318][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 492.987392][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.987480][ T44] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 492.987554][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 492.987626][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.987695][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 492.987758][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 492.987832][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 492.987907][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 492.987976][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.988049][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 492.988120][ T44] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[ 492.988207][ T44] ? debug_object_deactivate (lib/debugobjects.c:915 (discriminator 3))
[ 492.988283][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.988354][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.988426][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 492.988495][ T44] addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 492.988564][ T44] process_one_work (kernel/workqueue.c:3314)
[ 492.988634][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 492.988706][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 492.988785][ T44] ? find_held_lock (kernel/locking/lockdep.c:5350)
[ 492.988852][ T44] ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[ 492.988927][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 492.988997][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 492.989067][ T44] kthread (kernel/kthread.c:436)
[ 492.989120][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 492.989207][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 492.989275][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 492.989351][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 492.989442][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 492.989512][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 492.989585][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 492.989656][ T44]
| [ 492.989713][ T44] INFO: task kworker/u16:0:12 is blocked on a mutex likely owned by task kworker/u19:0:38.
[ 492.989854][ T44] INFO: task kworker/u19:0:38 blocked for more than 368 seconds.
[ 492.989961][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 492.990026][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 492.990142][ T44] task:kworker/u19:0 state:D stack:26376 pid:38 tgid:38 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 492.990295][ T44] Workqueue: events_unbound linkwatch_event
[ 492.990384][ T44] Call Trace:
[ 492.990440][ T44]
[ 492.990475][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 492.990546][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 492.990619][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.990688][ T44] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 492.990764][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 492.990832][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.990910][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 492.990969][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 492.991042][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 492.991116][ T44] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 492.991210][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 492.991281][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 492.991352][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 492.991437][ T44] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[ 492.991510][ T44] ? rt6_multipath_rebalance (./include/net/addrconf.h:348 (discriminator 4))
[ 492.991585][ T44] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[ 492.991673][ T44] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[ 492.991745][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 492.991820][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 492.991900][ T44] ? fib6_walk (net/ipv6/ip6_fib.c:89 net/ipv6/ip6_fib.c:2229)
[ 492.991978][ T44] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 492.992066][ T44] __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 492.992156][ T44] ? fib6_walk (./include/linux/list.h:262 net/ipv6/ip6_fib.c:88 net/ipv6/ip6_fib.c:2229)
[ 492.992231][ T44] port_cost (net/bridge/br_if.c:39)
[ 492.992287][ T44] ? br_multicast_flood (??:?)
[ 492.992361][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 492.992447][ T44] ? packet_notifier (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/packet/af_packet.c:4234 (discriminator 2))
[ 492.992524][ T44] br_port_carrier_check (net/bridge/br_if.c:80)
[ 492.992600][ T44] br_device_event (net/bridge/br.c:101)
[ 492.992677][ T44] ? fib6_ifdown (net/ipv6/route.c:4962)
[ 492.992753][ T44] ? packet_sendmsg_spkt (af_packet.c:?)
[ 492.992829][ T44] notifier_call_chain (kernel/notifier.c:85)
[ 492.992905][ T44] netif_state_change (net/core/dev.c:1603)
[ 492.992981][ T44] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[ 492.993075][ T44] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[ 492.993150][ T44] __linkwatch_run_queue (net/core/link_watch.c:240)
[ 492.993222][ T44] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 492.993294][ T44] linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[ 492.993368][ T44] ? __linkwatch_run_queue (net/core/link_watch.c:213)
[ 492.993441][ T44] process_one_work (kernel/workqueue.c:3314)
[ 492.993516][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 492.993594][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 492.993667][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 492.993739][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 492.993818][ T44] kthread (kernel/kthread.c:436)
[ 492.993873][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 492.993968][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 492.994042][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 492.994118][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 492.994208][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 492.994286][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 492.994362][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 492.994446][ T44]
| [ 492.994502][ T44] INFO: task kworker/u19:0:38 is blocked on a mutex likely owned by task kworker/u19:0:38.
[ 492.994657][ T44] INFO: task bridge:331 blocked for more than 368 seconds.
[ 492.994762][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 492.994831][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 492.994955][ T44] task:bridge state:D stack:25840 pid:331 tgid:331 ppid:330 task_flags:0x400100 flags:0x00080000
[ 492.995118][ T44] Call Trace:
[ 492.995175][ T44]
[ 492.995219][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 492.995294][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 492.995366][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.995445][ T44] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 492.995517][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 492.995588][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.995657][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 492.995710][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 492.995784][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 492.995854][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 492.995929][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 492.996001][ T44] ? nla_get_range_signed (lib/nlattr.c:270)
[ 492.996075][ T44] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 492.996163][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.996236][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 492.996308][ T44] ? __nla_validate_parse (lib/nlattr.c:635)
[ 492.996377][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 492.996450][ T44] rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 492.996520][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 492.996603][ T44] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[ 492.996673][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.996740][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 492.996816][ T44] ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[ 492.996892][ T44] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[ 492.996968][ T44] ? __kmalloc_node_track_caller_noprof (mm/slub.c:5297 mm/slub.c:5408)
[ 492.997059][ T44] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[ 492.997129][ T44] ? __alloc_skb (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:67 net/core/skbuff.c:408 net/core/skbuff.c:720)
[ 492.997201][ T44] ? __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:695 (discriminator 2))
[ 492.997276][ T44] ? napi_skb_cache_get (./include/linux/local_lock_internal.h:61)
[ 492.997348][ T44] rtnl_dumpit (net/core/rtnetlink.c:6931)
[ 492.997409][ T44] netlink_dump (net/netlink/af_netlink.c:2331)
[ 492.997489][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 492.997559][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 492.997629][ T44] ? netlink_lookup (./include/linux/refcount.h:291)
[ 492.997699][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.997772][ T44] __netlink_dump_start (net/netlink/af_netlink.c:2446)
[ 492.997843][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 492.997938][ T44] rtnetlink_rcv_msg (./include/linux/netlink.h:341 net/core/rtnetlink.c:6960 net/core/rtnetlink.c:7027)
[ 492.998008][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 492.998079][ T44] ? rtnl_unlock (net/core/rtnetlink.c:157)
[ 492.998151][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 492.998239][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 492.998311][ T44] netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[ 492.998393][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 492.998477][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 492.998551][ T44] ? netlink_ack (./include/linux/skbuff.h:2720)
[ 492.998624][ T44] ? __netlink_lookup (./include/linux/rcupdate.h:839 ./include/linux/rhashtable.h:708 net/netlink/af_netlink.c:499)
[ 492.998701][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.998774][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 492.998849][ T44] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[ 492.998928][ T44] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 492.998999][ T44] netlink_sendmsg (net/netlink/af_netlink.c:1900)
[ 492.999075][ T44] ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[ 492.999146][ T44] ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 6))
[ 492.999219][ T44] ? do_anonymous_page (./include/linux/pgtable.h:117 mm/memory.c:5433)
[ 492.999291][ T44] __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[ 492.999367][ T44] ? __ia32_sys_getpeername (net/socket.c:2219)
[ 492.999446][ T44] ? __pmd_alloc (./include/linux/mm.h:1682)
[ 492.999527][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.999599][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 492.999674][ T44] __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[ 492.999751][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 492.999842][ T44] ? trace_hardirqs_off_finish (./include/trace/events/preemptirq.h:36 (discriminator 22) kernel/trace/trace_preemptirq.c:95 (discriminator 22) kernel/trace/trace_preemptirq.c:90 (discriminator 22))
[ 492.999939][ T44] ? irqentry_exit (./include/linux/irq-entry-common.h:272 ./include/linux/irq-entry-common.h:317 kernel/entry/common.c:162)
[ 493.000018][ T44] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[ 493.000090][ T44] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[ 493.000162][ T44] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[ 493.000233][ T44] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[ 493.000316][ T44] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 493.000405][ T44] RIP: 0033:0x7f37a2e1b08e
[ 493.000492][ T44] RSP: 002b:00007fffdc16c550 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 493.000609][ T44] RAX: ffffffffffffffda RBX: 00007fffdc16c7b8 RCX: 00007f37a2e1b08e
[ 493.000719][ T44] RDX: 0000000000000028 RSI: 00007fffdc16c5b0 RDI: 0000000000000005
[ 493.000837][ T44] RBP: 00007fffdc16c560 R08: 0000000000000000 R09: 0000000000000000
[ 493.000952][ T44] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffdc16c7a8
[ 493.001066][ T44] R13: 0000000000000009 R14: 00007f37a30bf000 R15: 0000000000423c78
| [ 493.001177][ T44]
| [ 493.001232][ T44] INFO: task bridge:331 is blocked on a mutex likely owned by task kworker/u19:0:38.
| [ 493.001361][ T44] INFO: lockdep is turned off.
[ 615.867451][ T44] INFO: task kworker/u16:0:12 blocked for more than 491 seconds.
[ 615.867710][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 615.867816][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 615.867967][ T44] task:kworker/u16:0 state:D stack:25712 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 615.868194][ T44] Workqueue: ipv6_addrconf addrconf_verify_work
[ 615.868314][ T44] Call Trace:
[ 615.868384][ T44]
[ 615.868460][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 615.868562][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 615.868660][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 615.868758][ T44] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 615.868867][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 615.868958][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 615.869051][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 615.869123][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 615.869218][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 615.869311][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 615.869408][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 615.869526][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 615.869619][ T44] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[ 615.869733][ T44] ? debug_object_deactivate (lib/debugobjects.c:915 (discriminator 3))
[ 615.869833][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 615.869926][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 615.870021][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 615.870117][ T44] addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 615.870213][ T44] process_one_work (kernel/workqueue.c:3314)
[ 615.870314][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 615.870406][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 615.870513][ T44] ? find_held_lock (kernel/locking/lockdep.c:5350)
[ 615.870607][ T44] ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[ 615.870707][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 615.870802][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 615.870900][ T44] kthread (kernel/kthread.c:436)
[ 615.870990][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 615.871106][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 615.871200][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 615.871296][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 615.871410][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 615.871512][ T44] ? kthread_affine_node (kernel/kthread.c:378)
Finger prints:
__schedule:schedule:schedule_preempt_disabled:__mutex_lock:__ethtool_get_link_ksettings
__schedule:schedule:schedule_preempt_disabled:__mutex_lock:addrconf_verify_work
validate_chain:__lock_acquire:__mutex_lock:__ethtool_get_link_ksettings:port_cost
__schedule:schedule:schedule_preempt_disabled:__mutex_lock:rtnl_dump_ifinfo