======================================
| [ 16.623488][ T39] #2: ffffffffa0eb4040 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event (net/core/link_watch.c:313)
| [ 16.623678][ T39] #3: ff1100000a33cd68 (&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)
| [ 16.623908][ T39]
| [ 16.623908][ T39] stack backtrace:
[ 16.624056][ T39] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 16.624058][ T39] Workqueue: events_unbound linkwatch_event
[ 16.624061][ T39] Call Trace:
[ 16.624063][ T39]
[ 16.624064][ T39] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[ 16.624069][ T39] print_deadlock_bug.cold (kernel/locking/lockdep.c:3041)
[ 16.624072][ T39] validate_chain (kernel/locking/lockdep.c:3093 kernel/locking/lockdep.c:3895)
[ 16.624075][ T39] __lock_acquire (kernel/locking/lockdep.c:5237)
[ 16.624077][ T39] ? validate_nla (lib/nlattr.c:599 (discriminator 2))
[ 16.624081][ T39] lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 16.624083][ T39] ? __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)
[ 16.624084][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 16.624088][ T39] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 16.624089][ T39] __mutex_lock (kernel/locking/mutex.c:646 kernel/locking/mutex.c:820)
[ 16.624093][ T39] ? __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)
[ 16.624094][ T39] ? __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)
[ 16.624096][ T39] ? inet6_dump_fib (net/ipv6/ip6_fib.c:564 net/ipv6/ip6_fib.c:727)
[ 16.624100][ T39] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 16.624101][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 16.624103][ T39] ? find_held_lock (kernel/locking/lockdep.c:5350)
[ 16.624104][ T39] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 16.624106][ T39] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[ 16.624108][ T39] ? rt6_multipath_rebalance (./include/net/addrconf.h:348 (discriminator 4))
[ 16.624110][ T39] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[ 16.624111][ T39] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[ 16.624113][ T39] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 16.624115][ T39] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 16.624116][ T39] ? fib6_walk (net/ipv6/ip6_fib.c:89 net/ipv6/ip6_fib.c:2229)
[ 16.624119][ T39] ? __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)
[ 16.624120][ T39] __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)
[ 16.624121][ T39] ? fib6_walk (./include/linux/list.h:262 net/ipv6/ip6_fib.c:88 net/ipv6/ip6_fib.c:2229)
[ 16.624123][ T39] port_cost (net/bridge/br_if.c:39)
[ 16.624126][ T39] ? br_multicast_flood (??:?)
[ 16.624128][ T39] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 16.624130][ T39] ? packet_notifier (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/packet/af_packet.c:4234 (discriminator 2))
[ 16.624132][ T39] br_port_carrier_check (net/bridge/br_if.c:80)
[ 16.624134][ T39] br_device_event (net/bridge/br.c:101)
[ 16.624136][ T39] ? fib6_ifdown (net/ipv6/route.c:4962)
[ 16.624138][ T39] ? packet_sendmsg_spkt (af_packet.c:?)
[ 16.624140][ T39] notifier_call_chain (kernel/notifier.c:85)
[ 16.624143][ T39] netif_state_change (net/core/dev.c:1603)
[ 16.624146][ T39] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[ 16.624149][ T39] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[ 16.624150][ T39] __linkwatch_run_queue (net/core/link_watch.c:240)
[ 16.624152][ T39] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 16.624154][ T39] linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[ 16.624155][ T39] ? __linkwatch_run_queue (net/core/link_watch.c:213)
[ 16.624157][ T39] process_one_work (kernel/workqueue.c:3314)
[ 16.624160][ T39] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 16.624161][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 16.624164][ T39] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 16.624167][ T39] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 16.624168][ T39] kthread (kernel/kthread.c:436)
[ 16.624170][ T39] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 16.624174][ T39] ? kthread_affine_node (kernel/kthread.c:378)
[ 16.624176][ T39] ret_from_fork (arch/x86/kernel/process.c:158)
[ 16.624179][ T39] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 16.624180][ T39] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 16.624183][ T39] ? kthread_affine_node (kernel/kthread.c:378)
[ 16.624185][ T39] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 16.624188][ T39]
[ 247.227476][ T44] INFO: task kworker/u16:0:12 blocked for more than 122 seconds.
[ 247.227662][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 247.227729][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 247.227831][ T44] task:kworker/u16:0 state:D stack:26864 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 247.227970][ T44] Workqueue: ipv6_addrconf addrconf_verify_work
[ 247.228053][ T44] Call Trace:
[ 247.228101][ T44]
[ 247.228136][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 247.228218][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 247.228278][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.228385][ 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)
[ 247.228448][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 247.228507][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.228569][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 247.228615][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 247.228673][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 247.228737][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 247.228797][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.228858][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 247.228920][ T44] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[ 247.228992][ T44] ? debug_object_deactivate (lib/debugobjects.c:915 (discriminator 3))
[ 247.229055][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.229116][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.229182][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 247.229240][ T44] addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 247.229303][ T44] process_one_work (kernel/workqueue.c:3314)
[ 247.229371][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 247.229434][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 247.229492][ T44] ? find_held_lock (kernel/locking/lockdep.c:5350)
[ 247.229557][ T44] ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[ 247.229641][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 247.229701][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 247.229760][ T44] kthread (kernel/kthread.c:436)
[ 247.229805][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 247.229878][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 247.229937][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 247.230001][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 247.230082][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 247.230142][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 247.230204][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 247.230267][ T44]
| [ 247.230324][ T44] INFO: task kworker/u16:0:12 is blocked on a mutex likely owned by task kworker/u20:0:39.
[ 247.230437][ T44] INFO: task kworker/u20:0:39 blocked for more than 122 seconds.
[ 247.230521][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 247.230581][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 247.230676][ T44] task:kworker/u20:0 state:D stack:26376 pid:39 tgid:39 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 247.230808][ T44] Workqueue: events_unbound linkwatch_event
[ 247.230883][ T44] Call Trace:
[ 247.230927][ T44]
[ 247.230961][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 247.231021][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 247.231079][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.231142][ 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)
[ 247.231201][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 247.231261][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.231326][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 247.231371][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 247.231433][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 247.231494][ 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)
[ 247.231574][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 247.231636][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 247.231695][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 247.231761][ T44] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[ 247.231824][ T44] ? rt6_multipath_rebalance (./include/net/addrconf.h:348 (discriminator 4))
[ 247.231887][ T44] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[ 247.231960][ T44] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[ 247.232020][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 247.232080][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 247.232141][ T44] ? fib6_walk (net/ipv6/ip6_fib.c:89 net/ipv6/ip6_fib.c:2229)
[ 247.232202][ 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)
[ 247.232278][ 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)
[ 247.232355][ T44] ? fib6_walk (./include/linux/list.h:262 net/ipv6/ip6_fib.c:88 net/ipv6/ip6_fib.c:2229)
[ 247.232421][ T44] port_cost (net/bridge/br_if.c:39)
[ 247.232470][ T44] ? br_multicast_flood (??:?)
[ 247.232533][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 247.232595][ 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))
[ 247.232659][ T44] br_port_carrier_check (net/bridge/br_if.c:80)
[ 247.232720][ T44] br_device_event (net/bridge/br.c:101)
[ 247.232780][ T44] ? fib6_ifdown (net/ipv6/route.c:4962)
[ 247.232842][ T44] ? packet_sendmsg_spkt (af_packet.c:?)
[ 247.232902][ T44] notifier_call_chain (kernel/notifier.c:85)
[ 247.232964][ T44] netif_state_change (net/core/dev.c:1603)
[ 247.233024][ T44] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[ 247.233098][ T44] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[ 247.233159][ T44] __linkwatch_run_queue (net/core/link_watch.c:240)
[ 247.233226][ T44] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 247.233286][ T44] linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[ 247.233358][ T44] ? __linkwatch_run_queue (net/core/link_watch.c:213)
[ 247.233418][ T44] process_one_work (kernel/workqueue.c:3314)
[ 247.233477][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 247.233542][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 247.233603][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 247.233664][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 247.233723][ T44] kthread (kernel/kthread.c:436)
[ 247.233772][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 247.233845][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 247.233907][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 247.233968][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 247.234041][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 247.234104][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 247.234164][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 247.234223][ T44]
| [ 247.234268][ T44] INFO: task kworker/u20:0:39 is blocked on a mutex likely owned by task kworker/u20:0:39.
[ 247.234391][ T44] INFO: task bridge:330 blocked for more than 122 seconds.
[ 247.234474][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 247.234536][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 247.234632][ T44] task:bridge state:D stack:25840 pid:330 tgid:330 ppid:329 task_flags:0x400100 flags:0x00080000
[ 247.234762][ T44] Call Trace:
[ 247.234805][ T44]
[ 247.234835][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 247.234894][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 247.234956][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.235014][ 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)
[ 247.235074][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 247.235139][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.235199][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 247.235248][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 247.235312][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 247.235374][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 247.235433][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 247.235505][ T44] ? nla_get_range_signed (lib/nlattr.c:270)
[ 247.235572][ T44] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 247.235647][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.235707][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 247.235766][ T44] ? __nla_validate_parse (lib/nlattr.c:635)
[ 247.235827][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 247.235885][ T44] rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 247.235944][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 247.236016][ T44] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[ 247.236075][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.236137][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 247.236200][ T44] ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[ 247.236261][ T44] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[ 247.236326][ T44] ? __kmalloc_node_track_caller_noprof (mm/slub.c:5297 mm/slub.c:5408)
[ 247.236400][ T44] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[ 247.236464][ 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)
[ 247.236529][ T44] ? __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:695 (discriminator 2))
[ 247.236590][ T44] ? napi_skb_cache_get (./include/linux/local_lock_internal.h:61)
[ 247.236649][ T44] rtnl_dumpit (net/core/rtnetlink.c:6931)
[ 247.236695][ T44] netlink_dump (net/netlink/af_netlink.c:2331)
[ 247.236760][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 247.236819][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 247.236880][ T44] ? netlink_lookup (./include/linux/refcount.h:291)
[ 247.236940][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.236999][ T44] __netlink_dump_start (net/netlink/af_netlink.c:2446)
[ 247.237059][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 247.237132][ T44] rtnetlink_rcv_msg (./include/linux/netlink.h:341 net/core/rtnetlink.c:6960 net/core/rtnetlink.c:7027)
[ 247.237192][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 247.237252][ T44] ? rtnl_unlock (net/core/rtnetlink.c:157)
[ 247.237318][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 247.237390][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 247.237449][ T44] netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[ 247.237508][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 247.237570][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 247.237628][ T44] ? netlink_ack (./include/linux/skbuff.h:2720)
[ 247.237688][ T44] ? __netlink_lookup (./include/linux/rcupdate.h:839 ./include/linux/rhashtable.h:708 net/netlink/af_netlink.c:499)
[ 247.237748][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.237814][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 247.237876][ T44] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[ 247.237935][ T44] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 247.237996][ T44] netlink_sendmsg (net/netlink/af_netlink.c:1900)
[ 247.238056][ T44] ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[ 247.238117][ T44] ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 6))
[ 247.238180][ T44] ? do_anonymous_page (./include/linux/pgtable.h:117 mm/memory.c:5433)
[ 247.238240][ T44] __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[ 247.238301][ T44] ? __ia32_sys_getpeername (net/socket.c:2219)
[ 247.238364][ T44] ? __pmd_alloc (./include/linux/mm.h:1682)
[ 247.238424][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.238489][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 247.238553][ T44] __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[ 247.238612][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 247.238689][ 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))
[ 247.238763][ T44] ? irqentry_exit (./include/linux/irq-entry-common.h:272 ./include/linux/irq-entry-common.h:317 kernel/entry/common.c:162)
[ 247.238822][ T44] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[ 247.238881][ T44] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[ 247.238939][ T44] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[ 247.238999][ T44] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[ 247.239057][ T44] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 247.239134][ T44] RIP: 0033:0x7fef95a3e08e
[ 247.239200][ T44] RSP: 002b:00007ffd8f1e5a00 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 247.239292][ T44] RAX: ffffffffffffffda RBX: 00007ffd8f1e5c68 RCX: 00007fef95a3e08e
[ 247.239387][ T44] RDX: 0000000000000028 RSI: 00007ffd8f1e5a60 RDI: 0000000000000005
[ 247.239484][ T44] RBP: 00007ffd8f1e5a10 R08: 0000000000000000 R09: 0000000000000000
[ 247.239583][ T44] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd8f1e5c58
[ 247.239677][ T44] R13: 0000000000000009 R14: 00007fef95ce2000 R15: 0000000000423c78
| [ 247.239766][ T44]
| [ 247.239810][ T44] INFO: task bridge:330 is blocked on a mutex likely owned by task kworker/u20:0:39.
| [ 247.239912][ T44] INFO: lockdep is turned off.
[ 370.107342][ T44] INFO: task kworker/u16:0:12 blocked for more than 245 seconds.
[ 370.107612][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 370.107705][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 370.107825][ T44] task:kworker/u16:0 state:D stack:26864 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 370.107993][ T44] Workqueue: ipv6_addrconf addrconf_verify_work
[ 370.108110][ T44] Call Trace:
[ 370.108167][ T44]
[ 370.108208][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 370.108286][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 370.108376][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.108469][ 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)
[ 370.108551][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 370.108627][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.108734][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 370.108812][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 370.108912][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 370.109015][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 370.109115][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.109215][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 370.109319][ T44] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[ 370.109439][ T44] ? debug_object_deactivate (lib/debugobjects.c:915 (discriminator 3))
[ 370.109517][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.109587][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.109660][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 370.109731][ T44] addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 370.109803][ T44] process_one_work (kernel/workqueue.c:3314)
[ 370.109877][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 370.109950][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 370.110021][ T44] ? find_held_lock (kernel/locking/lockdep.c:5350)
[ 370.110091][ T44] ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[ 370.110161][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 370.110232][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 370.110302][ T44] kthread (kernel/kthread.c:436)
[ 370.110361][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 370.110450][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 370.110529][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 370.110602][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 370.110693][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 370.110765][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 370.110835][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 370.110913][ T44]
| [ 370.110973][ T44] INFO: task kworker/u16:0:12 is blocked on a mutex likely owned by task kworker/u20:0:39.
[ 370.111114][ T44] INFO: task kworker/u20:0:39 blocked for more than 245 seconds.
[ 370.111219][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 370.111285][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 370.111405][ T44] task:kworker/u20:0 state:D stack:26376 pid:39 tgid:39 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 370.111573][ T44] Workqueue: events_unbound linkwatch_event
[ 370.111668][ T44] Call Trace:
[ 370.111721][ T44]
[ 370.111758][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 370.111830][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 370.111900][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.111969][ 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)
[ 370.112038][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 370.112116][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.112187][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 370.112244][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 370.112318][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 370.112387][ 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)
[ 370.112507][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 370.112605][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 370.112707][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 370.112803][ T44] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[ 370.112900][ T44] ? rt6_multipath_rebalance (./include/net/addrconf.h:348 (discriminator 4))
[ 370.112999][ T44] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[ 370.113122][ T44] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[ 370.113221][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 370.113350][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 370.113448][ T44] ? fib6_walk (net/ipv6/ip6_fib.c:89 net/ipv6/ip6_fib.c:2229)
[ 370.113552][ 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)
[ 370.113678][ 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)
[ 370.113801][ T44] ? fib6_walk (./include/linux/list.h:262 net/ipv6/ip6_fib.c:88 net/ipv6/ip6_fib.c:2229)
[ 370.113901][ T44] port_cost (net/bridge/br_if.c:39)
[ 370.113978][ T44] ? br_multicast_flood (??:?)
[ 370.114084][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 370.114182][ 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))
[ 370.114283][ T44] br_port_carrier_check (net/bridge/br_if.c:80)
[ 370.114389][ T44] br_device_event (net/bridge/br.c:101)
[ 370.114492][ T44] ? fib6_ifdown (net/ipv6/route.c:4962)
[ 370.114592][ T44] ? packet_sendmsg_spkt (af_packet.c:?)
[ 370.114693][ T44] notifier_call_chain (kernel/notifier.c:85)
[ 370.114792][ T44] netif_state_change (net/core/dev.c:1603)
[ 370.114895][ T44] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[ 370.115018][ T44] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[ 370.115118][ T44] __linkwatch_run_queue (net/core/link_watch.c:240)
[ 370.115211][ T44] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 370.115283][ T44] linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[ 370.115358][ T44] ? __linkwatch_run_queue (net/core/link_watch.c:213)
[ 370.115427][ T44] process_one_work (kernel/workqueue.c:3314)
[ 370.115512][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 370.115581][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 370.115655][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 370.115726][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 370.115795][ T44] kthread (kernel/kthread.c:436)
[ 370.115847][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 370.115934][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 370.116006][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 370.116077][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 370.116162][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 370.116232][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 370.116302][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 370.116378][ T44]
| [ 370.116432][ T44] INFO: task kworker/u20:0:39 is blocked on a mutex likely owned by task kworker/u20:0:39.
[ 370.116585][ T44] INFO: task bridge:330 blocked for more than 245 seconds.
[ 370.116724][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 370.116820][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 370.116985][ T44] task:bridge state:D stack:25840 pid:330 tgid:330 ppid:329 task_flags:0x400100 flags:0x00080000
[ 370.117203][ T44] Call Trace:
[ 370.117262][ T44]
[ 370.117298][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 370.117379][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 370.117450][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.117528][ 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)
[ 370.117599][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 370.117674][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.117746][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 370.117800][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 370.117870][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 370.117941][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 370.118014][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 370.118088][ T44] ? nla_get_range_signed (lib/nlattr.c:270)
[ 370.118157][ T44] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 370.118247][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.118322][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 370.118391][ T44] ? __nla_validate_parse (lib/nlattr.c:635)
[ 370.118461][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 370.118539][ T44] rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 370.118611][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 370.118698][ T44] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[ 370.118768][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.118839][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 370.118914][ T44] ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[ 370.118985][ T44] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[ 370.119057][ T44] ? __kmalloc_node_track_caller_noprof (mm/slub.c:5297 mm/slub.c:5408)
[ 370.119147][ T44] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[ 370.119218][ 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)
[ 370.119291][ T44] ? __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:695 (discriminator 2))
[ 370.119371][ T44] ? napi_skb_cache_get (./include/linux/local_lock_internal.h:61)
[ 370.119443][ T44] rtnl_dumpit (net/core/rtnetlink.c:6931)
[ 370.119508][ T44] netlink_dump (net/netlink/af_netlink.c:2331)
[ 370.119581][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 370.119658][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 370.119728][ T44] ? netlink_lookup (./include/linux/refcount.h:291)
[ 370.119799][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.119870][ T44] __netlink_dump_start (net/netlink/af_netlink.c:2446)
[ 370.119944][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 370.120043][ T44] rtnetlink_rcv_msg (./include/linux/netlink.h:341 net/core/rtnetlink.c:6960 net/core/rtnetlink.c:7027)
[ 370.120146][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 370.120244][ T44] ? rtnl_unlock (net/core/rtnetlink.c:157)
[ 370.120348][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 370.120466][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 370.120572][ T44] netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[ 370.120675][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 370.120775][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 370.120876][ T44] ? netlink_ack (./include/linux/skbuff.h:2720)
[ 370.120977][ T44] ? __netlink_lookup (./include/linux/rcupdate.h:839 ./include/linux/rhashtable.h:708 net/netlink/af_netlink.c:499)
[ 370.121079][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.121179][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 370.121278][ T44] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[ 370.121395][ T44] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 370.121505][ T44] netlink_sendmsg (net/netlink/af_netlink.c:1900)
[ 370.121609][ T44] ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[ 370.121708][ T44] ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 6))
[ 370.121808][ T44] ? do_anonymous_page (./include/linux/pgtable.h:117 mm/memory.c:5433)
[ 370.121909][ T44] __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[ 370.122010][ T44] ? __ia32_sys_getpeername (net/socket.c:2219)
[ 370.122110][ T44] ? __pmd_alloc (./include/linux/mm.h:1682)
[ 370.122211][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.122319][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 370.122419][ T44] __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[ 370.122524][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 370.122650][ 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))
[ 370.122772][ T44] ? irqentry_exit (./include/linux/irq-entry-common.h:272 ./include/linux/irq-entry-common.h:317 kernel/entry/common.c:162)
[ 370.122870][ T44] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[ 370.122968][ T44] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[ 370.123069][ T44] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[ 370.123167][ T44] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[ 370.123263][ T44] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 370.123394][ T44] RIP: 0033:0x7fef95a3e08e
[ 370.123513][ T44] RSP: 002b:00007ffd8f1e5a00 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 370.123665][ T44] RAX: ffffffffffffffda RBX: 00007ffd8f1e5c68 RCX: 00007fef95a3e08e
[ 370.123817][ T44] RDX: 0000000000000028 RSI: 00007ffd8f1e5a60 RDI: 0000000000000005
[ 370.123972][ T44] RBP: 00007ffd8f1e5a10 R08: 0000000000000000 R09: 0000000000000000
[ 370.124121][ T44] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd8f1e5c58
[ 370.124270][ T44] R13: 0000000000000009 R14: 00007fef95ce2000 R15: 0000000000423c78
| [ 370.124416][ T44]
| [ 370.124474][ T44] INFO: task bridge:330 is blocked on a mutex likely owned by task kworker/u20:0:39.
| [ 370.124611][ T44] INFO: lockdep is turned off.
[ 492.987326][ T44] INFO: task kworker/u16:0:12 blocked for more than 368 seconds.
[ 492.987581][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 492.987683][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 492.987860][ T44] task:kworker/u16:0 state:D stack:26864 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 492.988087][ T44] Workqueue: ipv6_addrconf addrconf_verify_work
[ 492.988219][ T44] Call Trace:
[ 492.988295][ T44]
[ 492.988369][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 492.988483][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 492.988585][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.988708][ 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)
[ 492.988812][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 492.988910][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.989019][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 492.989095][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 492.989195][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 492.989296][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 492.989437][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.989544][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 492.989660][ T44] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[ 492.989787][ T44] ? debug_object_deactivate (lib/debugobjects.c:915 (discriminator 3))
[ 492.989892][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.989990][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.990106][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 492.990211][ T44] addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 492.990320][ T44] process_one_work (kernel/workqueue.c:3314)
[ 492.990429][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 492.990537][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 492.990642][ T44] ? find_held_lock (kernel/locking/lockdep.c:5350)
[ 492.990743][ T44] ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[ 492.990844][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 492.990947][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 492.991056][ T44] kthread (kernel/kthread.c:436)
[ 492.991136][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 492.991263][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 492.991383][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 492.991490][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 492.991623][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 492.991725][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 492.991827][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 492.991931][ T44]
| [ 492.992015][ T44] INFO: task kworker/u16:0:12 is blocked on a mutex likely owned by task kworker/u20:0:39.
[ 492.992210][ T44] INFO: task kworker/u20:0:39 blocked for more than 368 seconds.
[ 492.992357][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 492.992461][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 492.992627][ T44] task:kworker/u20:0 state:D stack:26376 pid:39 tgid:39 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 492.992846][ T44] Workqueue: events_unbound linkwatch_event
[ 492.992972][ T44] Call Trace:
[ 492.993048][ T44]
[ 492.993099][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 492.993198][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 492.993334][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.993439][ 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)
[ 492.993546][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 492.993645][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.993749][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 492.993824][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 492.993922][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 492.994025][ 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)
[ 492.994147][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 492.994245][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 492.994356][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 492.994459][ T44] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[ 492.994558][ T44] ? rt6_multipath_rebalance (./include/net/addrconf.h:348 (discriminator 4))
[ 492.994657][ T44] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[ 492.994780][ T44] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[ 492.994880][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 492.994981][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 492.995082][ T44] ? fib6_walk (net/ipv6/ip6_fib.c:89 net/ipv6/ip6_fib.c:2229)
[ 492.995182][ 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)
[ 492.995304][ 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)
[ 492.995449][ T44] ? fib6_walk (./include/linux/list.h:262 net/ipv6/ip6_fib.c:88 net/ipv6/ip6_fib.c:2229)
[ 492.995549][ T44] port_cost (net/bridge/br_if.c:39)
[ 492.995628][ T44] ? br_multicast_flood (??:?)
[ 492.995729][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 492.995834][ 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))
[ 492.995935][ T44] br_port_carrier_check (net/bridge/br_if.c:80)
[ 492.996038][ T44] br_device_event (net/bridge/br.c:101)
[ 492.996138][ T44] ? fib6_ifdown (net/ipv6/route.c:4962)
[ 492.996240][ T44] ? packet_sendmsg_spkt (af_packet.c:?)
[ 492.996353][ T44] notifier_call_chain (kernel/notifier.c:85)
[ 492.996459][ T44] netif_state_change (net/core/dev.c:1603)
[ 492.996561][ T44] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[ 492.996684][ T44] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[ 492.996787][ T44] __linkwatch_run_queue (net/core/link_watch.c:240)
[ 492.996890][ T44] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 492.996995][ T44] linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[ 492.997093][ T44] ? __linkwatch_run_queue (net/core/link_watch.c:213)
[ 492.997194][ T44] process_one_work (kernel/workqueue.c:3314)
[ 492.997302][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 492.997418][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 492.997525][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 492.997627][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 492.997730][ T44] kthread (kernel/kthread.c:436)
[ 492.997807][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 492.997931][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 492.998033][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 492.998133][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 492.998259][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 492.998366][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 492.998476][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 492.998583][ T44]
| [ 492.998660][ T44] INFO: task kworker/u20:0:39 is blocked on a mutex likely owned by task kworker/u20:0:39.
[ 492.998861][ T44] INFO: task bridge:330 blocked for more than 368 seconds.
[ 492.999002][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 492.999097][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 492.999264][ T44] task:bridge state:D stack:25840 pid:330 tgid:330 ppid:329 task_flags:0x400100 flags:0x00080000
[ 492.999496][ T44] Call Trace:
[ 492.999574][ T44]
[ 492.999626][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 492.999727][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 492.999826][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.999930][ 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)
[ 493.000032][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 493.000131][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 493.000230][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 493.000313][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 493.000414][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 493.000520][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 493.000619][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 493.000720][ T44] ? nla_get_range_signed (lib/nlattr.c:270)
[ 493.000822][ T44] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 493.000946][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 493.001046][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 493.001152][ T44] ? __nla_validate_parse (lib/nlattr.c:635)
[ 493.001254][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 493.001370][ T44] rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 493.001477][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 493.001601][ T44] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[ 493.001703][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 493.001802][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 493.001911][ T44] ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[ 493.002012][ T44] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[ 493.002113][ T44] ? __kmalloc_node_track_caller_noprof (mm/slub.c:5297 mm/slub.c:5408)
[ 493.002240][ T44] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[ 493.002349][ 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)
[ 493.002457][ T44] ? __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:695 (discriminator 2))
[ 493.002556][ T44] ? napi_skb_cache_get (./include/linux/local_lock_internal.h:61)
[ 493.002657][ T44] rtnl_dumpit (net/core/rtnetlink.c:6931)
[ 493.002735][ T44] netlink_dump (net/netlink/af_netlink.c:2331)
[ 493.002836][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 493.002936][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 493.003039][ T44] ? netlink_lookup (./include/linux/refcount.h:291)
[ 493.003141][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 493.003241][ T44] __netlink_dump_start (net/netlink/af_netlink.c:2446)
[ 493.003345][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 493.003478][ T44] rtnetlink_rcv_msg (./include/linux/netlink.h:341 net/core/rtnetlink.c:6960 net/core/rtnetlink.c:7027)
[ 493.003577][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 493.003674][ T44] ? rtnl_unlock (net/core/rtnetlink.c:157)
[ 493.003776][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 493.003903][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 493.004006][ T44] netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[ 493.004108][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 493.004209][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 493.004317][ T44] ? netlink_ack (./include/linux/skbuff.h:2720)
[ 493.004418][ T44] ? __netlink_lookup (./include/linux/rcupdate.h:839 ./include/linux/rhashtable.h:708 net/netlink/af_netlink.c:499)
[ 493.004525][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 493.004628][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 493.004729][ T44] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[ 493.004831][ T44] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 493.004934][ T44] netlink_sendmsg (net/netlink/af_netlink.c:1900)
[ 493.005035][ T44] ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[ 493.005135][ T44] ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 6))
[ 493.005236][ T44] ? do_anonymous_page (./include/linux/pgtable.h:117 mm/memory.c:5433)
[ 493.005350][ T44] __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[ 493.005464][ T44] ? __ia32_sys_getpeername (net/socket.c:2219)
[ 493.005566][ T44] ? __pmd_alloc (./include/linux/mm.h:1682)
[ 493.005671][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 493.005772][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 493.005872][ T44] __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[ 493.005979][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 493.006105][ 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))
[ 493.006233][ T44] ? irqentry_exit (./include/linux/irq-entry-common.h:272 ./include/linux/irq-entry-common.h:317 kernel/entry/common.c:162)
[ 493.006339][ T44] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[ 493.006440][ T44] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[ 493.006546][ T44] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[ 493.006647][ T44] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[ 493.006752][ T44] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 493.006879][ T44] RIP: 0033:0x7fef95a3e08e
[ 493.006990][ T44] RSP: 002b:00007ffd8f1e5a00 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 493.007154][ T44] RAX: ffffffffffffffda RBX: 00007ffd8f1e5c68 RCX: 00007fef95a3e08e
[ 493.007313][ T44] RDX: 0000000000000028 RSI: 00007ffd8f1e5a60 RDI: 0000000000000005
[ 493.007474][ T44] RBP: 00007ffd8f1e5a10 R08: 0000000000000000 R09: 0000000000000000
[ 493.007628][ T44] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd8f1e5c58
[ 493.007783][ T44] R13: 0000000000000009 R14: 00007fef95ce2000 R15: 0000000000423c78
| [ 493.007940][ T44]
| [ 493.008017][ T44] INFO: task bridge:330 is blocked on a mutex likely owned by task kworker/u20:0:39.
| [ 493.008197][ T44] INFO: lockdep is turned off.
[ 615.867324][ T44] INFO: task kworker/u16:0:12 blocked for more than 491 seconds.
[ 615.867558][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 615.867635][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 615.867756][ T44] task:kworker/u16:0 state:D stack:26864 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 615.867924][ T44] Workqueue: ipv6_addrconf addrconf_verify_work
[ 615.868026][ T44] Call Trace:
[ 615.868085][ T44]
[ 615.868127][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 615.868212][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 615.868284][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 615.868374][ 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)
[ 615.868447][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 615.868521][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 615.868595][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 615.868658][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 615.868731][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 615.868805][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 615.868880][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 615.868951][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 615.869023][ T44] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[ 615.869113][ T44] ? debug_object_deactivate (lib/debugobjects.c:915 (discriminator 3))
[ 615.869193][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 615.869283][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 615.869363][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 615.869451][ T44] addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 615.869522][ T44] process_one_work (kernel/workqueue.c:3314)
[ 615.869599][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 615.869675][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 615.869753][ T44] ? find_held_lock (kernel/locking/lockdep.c:5350)
[ 615.869846][ T44] ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[ 615.869923][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 615.869995][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 615.870068][ T44] kthread (kernel/kthread.c:436)
[ 615.870123][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 615.870220][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 615.870292][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 615.870370][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 615.870459][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 615.870532][ 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