======================================
| [ 1404.945493][ T39] #2: ffffffff968b4040 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event (net/core/link_watch.c:313)
| [ 1404.945635][ T39] #3: ff110000140e4d68 (&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)
| [ 1404.945797][ T39]
| [ 1404.945797][ T39] stack backtrace:
[ 1404.945900][ T39] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1404.945902][ T39] Workqueue: events_unbound linkwatch_event
[ 1404.945905][ T39] Call Trace:
[ 1404.945906][ T39]
[ 1404.945908][ T39] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[ 1404.945912][ T39] print_deadlock_bug.cold (kernel/locking/lockdep.c:3041)
[ 1404.945915][ T39] validate_chain (kernel/locking/lockdep.c:3093 kernel/locking/lockdep.c:3895)
[ 1404.945918][ T39] __lock_acquire (kernel/locking/lockdep.c:5237)
[ 1404.945921][ T39] lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 1404.945922][ 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)
[ 1404.945924][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1404.945927][ T39] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 1404.945929][ T39] __mutex_lock (kernel/locking/mutex.c:646 kernel/locking/mutex.c:820)
[ 1404.945933][ 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)
[ 1404.945934][ 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)
[ 1404.945936][ T39] ? inet6_dump_fib (net/ipv6/ip6_fib.c:564 net/ipv6/ip6_fib.c:727)
[ 1404.945939][ T39] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 1404.945941][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 1404.945942][ T39] ? find_held_lock (kernel/locking/lockdep.c:5350)
[ 1404.945944][ T39] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 1404.945945][ T39] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[ 1404.945947][ T39] ? rt6_multipath_rebalance (./include/net/addrconf.h:348 (discriminator 4))
[ 1404.945949][ T39] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[ 1404.945950][ T39] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[ 1404.945952][ T39] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 1404.945954][ T39] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 1404.945956][ T39] ? fib6_walk (net/ipv6/ip6_fib.c:89 net/ipv6/ip6_fib.c:2229)
[ 1404.945958][ 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)
[ 1404.945959][ 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)
[ 1404.945960][ T39] ? fib6_walk (./include/linux/list.h:262 net/ipv6/ip6_fib.c:88 net/ipv6/ip6_fib.c:2229)
[ 1404.945962][ T39] port_cost (net/bridge/br_if.c:39)
[ 1404.945965][ T39] ? br_multicast_flood (??:?)
[ 1404.945967][ T39] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 1404.945969][ 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))
[ 1404.945972][ T39] br_port_carrier_check (net/bridge/br_if.c:80)
[ 1404.945974][ T39] br_device_event (net/bridge/br.c:101)
[ 1404.945975][ T39] ? fib6_ifdown (net/ipv6/route.c:4962)
[ 1404.945977][ T39] ? packet_sendmsg_spkt (af_packet.c:?)
[ 1404.945980][ T39] notifier_call_chain (kernel/notifier.c:85)
[ 1404.945983][ T39] netif_state_change (net/core/dev.c:1603)
[ 1404.945986][ T39] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[ 1404.945989][ T39] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[ 1404.945990][ T39] __linkwatch_run_queue (net/core/link_watch.c:240)
[ 1404.945992][ T39] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 1404.945994][ T39] linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[ 1404.945995][ T39] ? __linkwatch_run_queue (net/core/link_watch.c:213)
[ 1404.945997][ T39] process_one_work (kernel/workqueue.c:3314)
[ 1404.946000][ T39] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 1404.946001][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 1404.946004][ T39] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 1404.946007][ T39] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 1404.946008][ T39] kthread (kernel/kthread.c:436)
[ 1404.946010][ T39] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 1404.946013][ T39] ? kthread_affine_node (kernel/kthread.c:378)
[ 1404.946015][ T39] ret_from_fork (arch/x86/kernel/process.c:158)
[ 1404.946018][ T39] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 1404.946020][ T39] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 1404.946023][ T39] ? kthread_affine_node (kernel/kthread.c:378)
[ 1404.946024][ T39] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 1404.946028][ T39]
[ 1599.061138][ T44] INFO: task kworker/u20:0:39 blocked for more than 122 seconds.
[ 1599.061306][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 1599.061376][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1599.061489][ T44] task:kworker/u20:0 state:D stack:26376 pid:39 tgid:39 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 1599.061651][ T44] Workqueue: events_unbound linkwatch_event
[ 1599.061744][ T44] Call Trace:
[ 1599.061799][ T44]
[ 1599.061835][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 1599.061909][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 1599.061979][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1599.062050][ 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)
[ 1599.062120][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 1599.062197][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1599.062266][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 1599.062318][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 1599.062386][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 1599.062453][ 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)
[ 1599.062536][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 1599.062610][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 1599.062683][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 1599.062750][ T44] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[ 1599.062817][ T44] ? rt6_multipath_rebalance (./include/net/addrconf.h:348 (discriminator 4))
[ 1599.062886][ T44] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[ 1599.062970][ T44] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[ 1599.063041][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 1599.063111][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 1599.063185][ T44] ? fib6_walk (net/ipv6/ip6_fib.c:89 net/ipv6/ip6_fib.c:2229)
[ 1599.063253][ 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)
[ 1599.063340][ 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)
[ 1599.063423][ T44] ? fib6_walk (./include/linux/list.h:262 net/ipv6/ip6_fib.c:88 net/ipv6/ip6_fib.c:2229)
[ 1599.063491][ T44] port_cost (net/bridge/br_if.c:39)
[ 1599.063543][ T44] ? br_multicast_flood (??:?)
[ 1599.063613][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 1599.063679][ 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))
[ 1599.063750][ T44] br_port_carrier_check (net/bridge/br_if.c:80)
[ 1599.063817][ T44] br_device_event (net/bridge/br.c:101)
[ 1599.063885][ T44] ? fib6_ifdown (net/ipv6/route.c:4962)
[ 1599.063952][ T44] ? packet_sendmsg_spkt (af_packet.c:?)
[ 1599.064024][ T44] notifier_call_chain (kernel/notifier.c:85)
[ 1599.064093][ T44] netif_state_change (net/core/dev.c:1603)
[ 1599.064168][ T44] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[ 1599.064251][ T44] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[ 1599.064318][ T44] __linkwatch_run_queue (net/core/link_watch.c:240)
[ 1599.064384][ T44] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 1599.064452][ T44] linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[ 1599.064519][ T44] ? __linkwatch_run_queue (net/core/link_watch.c:213)
[ 1599.064586][ T44] process_one_work (kernel/workqueue.c:3314)
[ 1599.064656][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 1599.064725][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 1599.064792][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 1599.064860][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 1599.064927][ T44] kthread (kernel/kthread.c:436)
[ 1599.064981][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 1599.065068][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 1599.065141][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 1599.065209][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 1599.065292][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 1599.065361][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 1599.065428][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 1599.065499][ T44]
| [ 1599.065551][ T44] INFO: task kworker/u20:0:39 is blocked on a mutex likely owned by task kworker/u20:0:39.
[ 1599.065685][ T44] INFO: task bridge:28751 blocked for more than 122 seconds.
[ 1599.065781][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 1599.065844][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1599.065954][ T44] task:bridge state:D stack:25840 pid:28751 tgid:28751 ppid:28750 task_flags:0x400100 flags:0x00080000
[ 1599.066112][ T44] Call Trace:
[ 1599.066167][ T44]
[ 1599.066204][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 1599.066273][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 1599.066340][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1599.066407][ 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)
[ 1599.066474][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 1599.066541][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1599.066610][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 1599.066661][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 1599.066729][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 1599.066795][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 1599.066863][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 1599.066929][ T44] ? nla_get_range_signed (lib/nlattr.c:270)
[ 1599.067000][ T44] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 1599.067087][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1599.067165][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 1599.067233][ T44] ? __nla_validate_parse (lib/nlattr.c:635)
[ 1599.067300][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 1599.067367][ T44] rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 1599.067435][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 1599.067517][ T44] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[ 1599.067587][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1599.067653][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 1599.067728][ T44] ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[ 1599.067798][ T44] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[ 1599.067868][ T44] ? __kmalloc_node_track_caller_noprof (mm/slub.c:5297 mm/slub.c:5408)
[ 1599.067950][ T44] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[ 1599.068021][ 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)
[ 1599.068089][ T44] ? __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:695 (discriminator 2))
[ 1599.068160][ T44] ? napi_skb_cache_get (./include/linux/local_lock_internal.h:61)
[ 1599.068231][ T44] rtnl_dumpit (net/core/rtnetlink.c:6931)
[ 1599.068283][ T44] netlink_dump (net/netlink/af_netlink.c:2331)
[ 1599.068351][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 1599.068417][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 1599.068484][ T44] ? netlink_lookup (./include/linux/refcount.h:291)
[ 1599.068552][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1599.068619][ T44] __netlink_dump_start (net/netlink/af_netlink.c:2446)
[ 1599.068688][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 1599.068773][ T44] rtnetlink_rcv_msg (./include/linux/netlink.h:341 net/core/rtnetlink.c:6960 net/core/rtnetlink.c:7027)
[ 1599.068841][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 1599.068909][ T44] ? rtnl_unlock (net/core/rtnetlink.c:157)
[ 1599.068978][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 1599.069066][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 1599.069137][ T44] netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[ 1599.069207][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 1599.069274][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 1599.069341][ T44] ? netlink_ack (./include/linux/skbuff.h:2720)
[ 1599.069408][ T44] ? __netlink_lookup (./include/linux/rcupdate.h:839 ./include/linux/rhashtable.h:708 net/netlink/af_netlink.c:499)
[ 1599.069478][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1599.069545][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 1599.069617][ T44] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[ 1599.069685][ T44] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 1599.069755][ T44] netlink_sendmsg (net/netlink/af_netlink.c:1900)
[ 1599.069823][ T44] ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[ 1599.069891][ T44] ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 6))
[ 1599.069960][ T44] ? do_anonymous_page (./include/linux/pgtable.h:117 mm/memory.c:5433)
[ 1599.070032][ T44] __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[ 1599.070101][ T44] ? __ia32_sys_getpeername (net/socket.c:2219)
[ 1599.070172][ T44] ? __pmd_alloc (./include/linux/mm.h:1682)
[ 1599.070244][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1599.070311][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 1599.070378][ T44] __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[ 1599.070446][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 1599.070530][ 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))
[ 1599.070614][ T44] ? irqentry_exit (./include/linux/irq-entry-common.h:272 ./include/linux/irq-entry-common.h:317 kernel/entry/common.c:162)
[ 1599.070681][ T44] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[ 1599.070747][ T44] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[ 1599.070818][ T44] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[ 1599.070886][ T44] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[ 1599.070952][ T44] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 1599.071038][ T44] RIP: 0033:0x7fc3887b408e
[ 1599.071111][ T44] RSP: 002b:00007ffea5dbf4a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 1599.071219][ T44] RAX: ffffffffffffffda RBX: 00007ffea5dbf708 RCX: 00007fc3887b408e
[ 1599.071324][ T44] RDX: 0000000000000028 RSI: 00007ffea5dbf500 RDI: 0000000000000005
[ 1599.071427][ T44] RBP: 00007ffea5dbf4b0 R08: 0000000000000000 R09: 0000000000000000
[ 1599.071530][ T44] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffea5dbf6f8
[ 1599.071632][ T44] R13: 0000000000000009 R14: 00007fc388a58000 R15: 0000000000423c78
| [ 1599.071738][ T44]
| [ 1599.071790][ T44] INFO: task bridge:28751 is blocked on a mutex likely owned by task kworker/u20:0:39.
| [ 1599.071903][ T44] INFO: lockdep is turned off.
[ 1721.941138][ T44] INFO: task kworker/u16:0:12 blocked for more than 122 seconds.
[ 1721.941306][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 1721.941375][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1721.941490][ T44] task:kworker/u16:0 state:D stack:25424 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 1721.941646][ T44] Workqueue: ipv6_addrconf addrconf_verify_work
[ 1721.941741][ T44] Call Trace:
[ 1721.941794][ T44]
[ 1721.941830][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 1721.941902][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 1721.941974][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1721.942044][ 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)
[ 1721.942113][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 1721.942192][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1721.942260][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 1721.942311][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 1721.942379][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 1721.942447][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 1721.942517][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1721.942584][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 1721.942652][ T44] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[ 1721.942738][ T44] ? debug_object_deactivate (lib/debugobjects.c:915 (discriminator 3))
[ 1721.942809][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1721.942876][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1721.942943][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 1721.943012][ T44] addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 1721.943081][ T44] process_one_work (kernel/workqueue.c:3314)
[ 1721.943153][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 1721.943222][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 1721.943290][ T44] ? find_held_lock (kernel/locking/lockdep.c:5350)
[ 1721.943358][ T44] ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[ 1721.943426][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 1721.943494][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 1721.943564][ T44] kthread (kernel/kthread.c:436)
[ 1721.943616][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 1721.943700][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 1721.943771][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 1721.943839][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 1721.943926][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 1721.943994][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 1721.944065][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 1721.944139][ T44]
| [ 1721.944191][ T44] INFO: task kworker/u16:0:12 is blocked on a mutex likely owned by task kworker/u20:0:39.
[ 1721.944321][ T44] INFO: task kworker/u20:0:39 blocked for more than 245 seconds.
[ 1721.944417][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 1721.944480][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1721.944590][ T44] task:kworker/u20:0 state:D stack:26376 pid:39 tgid:39 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 1721.944744][ T44] Workqueue: events_unbound linkwatch_event
[ 1721.944827][ T44] Call Trace:
[ 1721.944876][ T44]
[ 1721.944910][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 1721.944978][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 1721.945047][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1721.945115][ 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)
[ 1721.945185][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 1721.945251][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1721.945319][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 1721.945370][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 1721.945437][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 1721.945515][ 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)
[ 1721.945599][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 1721.945665][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 1721.945736][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 1721.945802][ T44] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[ 1721.945868][ T44] ? rt6_multipath_rebalance (./include/net/addrconf.h:348 (discriminator 4))
[ 1721.945935][ T44] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[ 1721.946023][ T44] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[ 1721.946090][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 1721.946163][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 1721.946236][ T44] ? fib6_walk (net/ipv6/ip6_fib.c:89 net/ipv6/ip6_fib.c:2229)
[ 1721.946304][ 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)
[ 1721.946385][ 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)
[ 1721.946471][ T44] ? fib6_walk (./include/linux/list.h:262 net/ipv6/ip6_fib.c:88 net/ipv6/ip6_fib.c:2229)
[ 1721.946539][ T44] port_cost (net/bridge/br_if.c:39)
[ 1721.946591][ T44] ? br_multicast_flood (??:?)
[ 1721.946659][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 1721.946726][ 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))
[ 1721.946799][ T44] br_port_carrier_check (net/bridge/br_if.c:80)
[ 1721.946865][ T44] br_device_event (net/bridge/br.c:101)
[ 1721.946934][ T44] ? fib6_ifdown (net/ipv6/route.c:4962)
[ 1721.947001][ T44] ? packet_sendmsg_spkt (af_packet.c:?)
[ 1721.947070][ T44] notifier_call_chain (kernel/notifier.c:85)
[ 1721.947140][ T44] netif_state_change (net/core/dev.c:1603)
[ 1721.947207][ T44] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[ 1721.947290][ T44] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[ 1721.947357][ T44] __linkwatch_run_queue (net/core/link_watch.c:240)
[ 1721.947425][ T44] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 1721.947495][ T44] linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[ 1721.947563][ T44] ? __linkwatch_run_queue (net/core/link_watch.c:213)
[ 1721.947628][ T44] process_one_work (kernel/workqueue.c:3314)
[ 1721.947696][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 1721.947765][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 1721.947834][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 1721.947901][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 1721.947971][ T44] kthread (kernel/kthread.c:436)
[ 1721.948022][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 1721.948106][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 1721.948182][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 1721.948248][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 1721.948331][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 1721.948398][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 1721.948469][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 1721.948538][ T44]
| [ 1721.948588][ T44] INFO: task kworker/u20:0:39 is blocked on a mutex likely owned by task kworker/u20:0:39.
[ 1721.948722][ T44] INFO: task bridge:28751 blocked for more than 245 seconds.
[ 1721.948819][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 1721.948883][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1721.948995][ T44] task:bridge state:D stack:25840 pid:28751 tgid:28751 ppid:28750 task_flags:0x400100 flags:0x00080000
[ 1721.949148][ T44] Call Trace:
[ 1721.949198][ T44]
[ 1721.949236][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 1721.949304][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 1721.949371][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1721.949441][ 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)
[ 1721.949508][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 1721.949574][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1721.949641][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 1721.949691][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 1721.949764][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 1721.949831][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 1721.949900][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 1721.949971][ T44] ? nla_get_range_signed (lib/nlattr.c:270)
[ 1721.950043][ T44] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 1721.950127][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1721.950199][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 1721.950266][ T44] ? __nla_validate_parse (lib/nlattr.c:635)
[ 1721.950333][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 1721.950403][ T44] rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 1721.950472][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 1721.950554][ T44] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[ 1721.950628][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1721.950696][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 1721.950770][ T44] ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[ 1721.950838][ T44] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[ 1721.950906][ T44] ? __kmalloc_node_track_caller_noprof (mm/slub.c:5297 mm/slub.c:5408)
[ 1721.950993][ T44] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[ 1721.951060][ 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)
[ 1721.951127][ T44] ? __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:695 (discriminator 2))
[ 1721.951198][ T44] ? napi_skb_cache_get (./include/linux/local_lock_internal.h:61)
[ 1721.951266][ T44] rtnl_dumpit (net/core/rtnetlink.c:6931)
[ 1721.951318][ T44] netlink_dump (net/netlink/af_netlink.c:2331)
[ 1721.951387][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 1721.951455][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 1721.951522][ T44] ? netlink_lookup (./include/linux/refcount.h:291)
[ 1721.951590][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1721.951657][ T44] __netlink_dump_start (net/netlink/af_netlink.c:2446)
[ 1721.951725][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 1721.951811][ T44] rtnetlink_rcv_msg (./include/linux/netlink.h:341 net/core/rtnetlink.c:6960 net/core/rtnetlink.c:7027)
[ 1721.951877][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 1721.951947][ T44] ? rtnl_unlock (net/core/rtnetlink.c:157)
[ 1721.952017][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 1721.952099][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 1721.952169][ T44] netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[ 1721.952238][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 1721.952304][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 1721.952370][ T44] ? netlink_ack (./include/linux/skbuff.h:2720)
[ 1721.952437][ T44] ? __netlink_lookup (./include/linux/rcupdate.h:839 ./include/linux/rhashtable.h:708 net/netlink/af_netlink.c:499)
[ 1721.952505][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1721.952575][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 1721.952641][ T44] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[ 1721.952709][ T44] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 1721.952781][ T44] netlink_sendmsg (net/netlink/af_netlink.c:1900)
[ 1721.952848][ T44] ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[ 1721.952915][ T44] ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 6))
[ 1721.952982][ T44] ? do_anonymous_page (./include/linux/pgtable.h:117 mm/memory.c:5433)
[ 1721.953053][ T44] __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[ 1721.953122][ T44] ? __ia32_sys_getpeername (net/socket.c:2219)
[ 1721.953194][ T44] ? __pmd_alloc (./include/linux/mm.h:1682)
[ 1721.953263][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1721.953329][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 1721.953396][ T44] __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[ 1721.953463][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 1721.953546][ 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))
[ 1721.953634][ T44] ? irqentry_exit (./include/linux/irq-entry-common.h:272 ./include/linux/irq-entry-common.h:317 kernel/entry/common.c:162)
[ 1721.953699][ T44] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[ 1721.953768][ T44] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[ 1721.953836][ T44] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[ 1721.953904][ T44] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[ 1721.953971][ T44] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 1721.954055][ T44] RIP: 0033:0x7fc3887b408e
[ 1721.954127][ T44] RSP: 002b:00007ffea5dbf4a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 1721.954239][ T44] RAX: ffffffffffffffda RBX: 00007ffea5dbf708 RCX: 00007fc3887b408e
[ 1721.954340][ T44] RDX: 0000000000000028 RSI: 00007ffea5dbf500 RDI: 0000000000000005
[ 1721.954442][ T44] RBP: 00007ffea5dbf4b0 R08: 0000000000000000 R09: 0000000000000000
[ 1721.954543][ T44] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffea5dbf6f8
[ 1721.954651][ T44] R13: 0000000000000009 R14: 00007fc388a58000 R15: 0000000000423c78
| [ 1721.954758][ T44]
| [ 1721.954812][ T44] INFO: task bridge:28751 is blocked on a mutex likely owned by task kworker/u20:0:39.
| [ 1721.954923][ T44] INFO: lockdep is turned off.
[ 1844.821137][ T44] INFO: task kworker/u16:0:12 blocked for more than 245 seconds.
[ 1844.821295][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 1844.821359][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1844.821470][ T44] task:kworker/u16:0 state:D stack:25424 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 1844.821617][ T44] Workqueue: ipv6_addrconf addrconf_verify_work
[ 1844.821702][ T44] Call Trace:
[ 1844.821757][ T44]
[ 1844.821792][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 1844.821860][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 1844.821928][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1844.821996][ 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)
[ 1844.822065][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 1844.822140][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1844.822212][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 1844.822266][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 1844.822333][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 1844.822401][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 1844.822467][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1844.822533][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 1844.822601][ T44] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[ 1844.822683][ T44] ? debug_object_deactivate (lib/debugobjects.c:915 (discriminator 3))
[ 1844.822754][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1844.822820][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1844.822887][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 1844.822955][ T44] addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 1844.823022][ T44] process_one_work (kernel/workqueue.c:3314)
[ 1844.823090][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 1844.823163][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 1844.823237][ T44] ? find_held_lock (kernel/locking/lockdep.c:5350)
[ 1844.823304][ T44] ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[ 1844.823372][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 1844.823440][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 1844.823508][ T44] kthread (kernel/kthread.c:436)
[ 1844.823559][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 1844.823642][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 1844.823711][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 1844.823782][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 1844.823867][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 1844.823934][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 1844.824001][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 1844.824069][ T44]
| [ 1844.824120][ T44] INFO: task kworker/u16:0:12 is blocked on a mutex likely owned by task kworker/u20:0:39.
[ 1844.824266][ T44] INFO: task kworker/u20:0:39 blocked for more than 368 seconds.
[ 1844.824365][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 1844.824427][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1844.824539][ T44] task:kworker/u20:0 state:D stack:26376 pid:39 tgid:39 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 1844.824689][ T44] Workqueue: events_unbound linkwatch_event
[ 1844.824776][ T44] Call Trace:
[ 1844.824828][ T44]
[ 1844.824866][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 1844.824933][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 1844.825001][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1844.825068][ 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)
[ 1844.825136][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 1844.825206][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1844.825275][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 1844.825326][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 1844.825392][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 1844.825459][ 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)
[ 1844.825542][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 1844.825609][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 1844.825676][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 1844.825753][ T44] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[ 1844.825821][ T44] ? rt6_multipath_rebalance (./include/net/addrconf.h:348 (discriminator 4))
[ 1844.825887][ T44] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[ 1844.825969][ T44] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[ 1844.826036][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 1844.826102][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 1844.826174][ T44] ? fib6_walk (net/ipv6/ip6_fib.c:89 net/ipv6/ip6_fib.c:2229)
[ 1844.826243][ 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)
[ 1844.826325][ 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)
[ 1844.826407][ T44] ? fib6_walk (./include/linux/list.h:262 net/ipv6/ip6_fib.c:88 net/ipv6/ip6_fib.c:2229)
[ 1844.826474][ T44] port_cost (net/bridge/br_if.c:39)
[ 1844.826525][ T44] ? br_multicast_flood (??:?)
[ 1844.826591][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 1844.826660][ 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))
[ 1844.826729][ T44] br_port_carrier_check (net/bridge/br_if.c:80)
[ 1844.826795][ T44] br_device_event (net/bridge/br.c:101)
[ 1844.826861][ T44] ? fib6_ifdown (net/ipv6/route.c:4962)
[ 1844.826927][ T44] ? packet_sendmsg_spkt (af_packet.c:?)
[ 1844.826995][ T44] notifier_call_chain (kernel/notifier.c:85)
[ 1844.827062][ T44] netif_state_change (net/core/dev.c:1603)
[ 1844.827134][ T44] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[ 1844.827223][ T44] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[ 1844.827290][ T44] __linkwatch_run_queue (net/core/link_watch.c:240)
[ 1844.827358][ T44] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 1844.827424][ T44] linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[ 1844.827491][ T44] ? __linkwatch_run_queue (net/core/link_watch.c:213)
[ 1844.827558][ T44] process_one_work (kernel/workqueue.c:3314)
[ 1844.827627][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 1844.827695][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 1844.827764][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 1844.827834][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 1844.827906][ T44] kthread (kernel/kthread.c:436)
[ 1844.827957][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 1844.828040][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 1844.828112][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 1844.828193][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 1844.828279][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 1844.828347][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 1844.828415][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 1844.828484][ T44]
| [ 1844.828534][ T44] INFO: task kworker/u20:0:39 is blocked on a mutex likely owned by task kworker/u20:0:39.
[ 1844.828664][ T44] INFO: task bridge:28751 blocked for more than 368 seconds.
[ 1844.828760][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 1844.828823][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1844.828931][ T44] task:bridge state:D stack:25840 pid:28751 tgid:28751 ppid:28750 task_flags:0x400100 flags:0x00080000
[ 1844.829077][ T44] Call Trace:
[ 1844.829126][ T44]
[ 1844.829167][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 1844.829238][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 1844.829305][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1844.829371][ 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)
[ 1844.829438][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 1844.829503][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1844.829571][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 1844.829622][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 1844.829690][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 1844.829758][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 1844.829826][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 1844.829892][ T44] ? nla_get_range_signed (lib/nlattr.c:270)
[ 1844.829960][ T44] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 1844.830044][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1844.830111][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 1844.830189][ T44] ? __nla_validate_parse (lib/nlattr.c:635)
[ 1844.830257][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 1844.830323][ T44] rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 1844.830390][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 1844.830473][ T44] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[ 1844.830539][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1844.830607][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 1844.830681][ T44] ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[ 1844.830748][ T44] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[ 1844.830815][ T44] ? __kmalloc_node_track_caller_noprof (mm/slub.c:5297 mm/slub.c:5408)
[ 1844.830897][ T44] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[ 1844.830963][ 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)
[ 1844.831033][ T44] ? __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:695 (discriminator 2))
[ 1844.831103][ T44] ? napi_skb_cache_get (./include/linux/local_lock_internal.h:61)
[ 1844.831178][ T44] rtnl_dumpit (net/core/rtnetlink.c:6931)
[ 1844.831234][ T44] netlink_dump (net/netlink/af_netlink.c:2331)
[ 1844.831304][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 1844.831370][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 1844.831438][ T44] ? netlink_lookup (./include/linux/refcount.h:291)
[ 1844.831506][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1844.831573][ T44] __netlink_dump_start (net/netlink/af_netlink.c:2446)
[ 1844.831641][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 1844.831727][ T44] rtnetlink_rcv_msg (./include/linux/netlink.h:341 net/core/rtnetlink.c:6960 net/core/rtnetlink.c:7027)
[ 1844.831796][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 1844.831864][ T44] ? rtnl_unlock (net/core/rtnetlink.c:157)
[ 1844.831931][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 1844.832015][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 1844.832084][ T44] netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[ 1844.832160][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 1844.832231][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 1844.832298][ T44] ? netlink_ack (./include/linux/skbuff.h:2720)
[ 1844.832364][ T44] ? __netlink_lookup (./include/linux/rcupdate.h:839 ./include/linux/rhashtable.h:708 net/netlink/af_netlink.c:499)
[ 1844.832433][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1844.832498][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 1844.832565][ T44] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[ 1844.832631][ T44] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 1844.832698][ T44] netlink_sendmsg (net/netlink/af_netlink.c:1900)
[ 1844.832766][ T44] ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[ 1844.832833][ T44] ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 6))
[ 1844.832900][ T44] ? do_anonymous_page (./include/linux/pgtable.h:117 mm/memory.c:5433)
[ 1844.832967][ T44] __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[ 1844.833035][ T44] ? __ia32_sys_getpeername (net/socket.c:2219)
[ 1844.833103][ T44] ? __pmd_alloc (./include/linux/mm.h:1682)
[ 1844.833175][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1844.833248][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 1844.833318][ T44] __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[ 1844.833386][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 1844.833472][ 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))
[ 1844.833558][ T44] ? irqentry_exit (./include/linux/irq-entry-common.h:272 ./include/linux/irq-entry-common.h:317 kernel/entry/common.c:162)
[ 1844.833624][ T44] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[ 1844.833692][ T44] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[ 1844.833759][ T44] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[ 1844.833825][ T44] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[ 1844.833895][ T44] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 1844.833977][ T44] RIP: 0033:0x7fc3887b408e
[ 1844.834047][ T44] RSP: 002b:00007ffea5dbf4a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 1844.834152][ T44] RAX: ffffffffffffffda RBX: 00007ffea5dbf708 RCX: 00007fc3887b408e
[ 1844.834256][ T44] RDX: 0000000000000028 RSI: 00007ffea5dbf500 RDI: 0000000000000005
[ 1844.834357][ T44] RBP: 00007ffea5dbf4b0 R08: 0000000000000000 R09: 0000000000000000
[ 1844.834456][ T44] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffea5dbf6f8
[ 1844.834557][ T44] R13: 0000000000000009 R14: 00007fc388a58000 R15: 0000000000423c78
| [ 1844.834659][ T44]
| [ 1844.834710][ T44] INFO: task bridge:28751 is blocked on a mutex likely owned by task kworker/u20:0:39.
| [ 1844.834828][ T44] INFO: lockdep is turned off.
[ 1967.701139][ T44] INFO: task kworker/u16:0:12 blocked for more than 368 seconds.
[ 1967.701307][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 1967.701376][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1967.701487][ T44] task:kworker/u16:0 state:D stack:25424 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 1967.701649][ T44] Workqueue: ipv6_addrconf addrconf_verify_work
[ 1967.701738][ T44] Call Trace:
[ 1967.701790][ T44]
[ 1967.701826][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 1967.701896][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 1967.701967][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1967.702037][ 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)
[ 1967.702116][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 1967.702195][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1967.702264][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 1967.702315][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 1967.702386][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 1967.702455][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 1967.702524][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1967.702597][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 1967.702668][ T44] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[ 1967.702757][ T44] ? debug_object_deactivate (lib/debugobjects.c:915 (discriminator 3))
[ 1967.702827][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1967.702895][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1967.702964][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 1967.703032][ T44] addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 1967.703100][ T44] process_one_work (kernel/workqueue.c:3314)
[ 1967.703181][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 1967.703249][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 1967.703316][ T44] ? find_held_lock (kernel/locking/lockdep.c:5350)
[ 1967.703388][ T44] ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[ 1967.703455][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 1967.703524][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 1967.703592][ T44] kthread (kernel/kthread.c:436)
[ 1967.703649][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 1967.703734][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 1967.703803][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 1967.703872][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 1967.703956][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 1967.704026][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 1967.704097][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 1967.704172][ T44]
| [ 1967.704226][ T44] INFO: task kworker/u16:0:12 is blocked on a mutex likely owned by task kworker/u20:0:39.
[ 1967.704358][ T44] INFO: task kworker/u20:0:39 blocked for more than 491 seconds.
[ 1967.704454][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 1967.704517][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1967.704631][ T44] task:kworker/u20:0 state:D stack:26376 pid:39 tgid:39 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 1967.704785][ T44] Workqueue: events_unbound linkwatch_event
[ 1967.704873][ T44] Call Trace:
[ 1967.704924][ T44]
[ 1967.704958][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 1967.705028][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 1967.705095][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1967.705173][ 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)
[ 1967.705243][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 1967.705319][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1967.705387][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 1967.705438][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 1967.705511][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 1967.705578][ 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)
[ 1967.705671][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 1967.705742][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 1967.705809][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 1967.705877][ T44] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[ 1967.705944][ T44] ? rt6_multipath_rebalance (./include/net/addrconf.h:348 (discriminator 4))
[ 1967.706013][ T44] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[ 1967.706096][ T44] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[ 1967.706181][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 1967.706251][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 1967.706323][ T44] ? fib6_walk (net/ipv6/ip6_fib.c:89 net/ipv6/ip6_fib.c:2229)
[ 1967.706395][ 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)
[ 1967.706484][ 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)
[ 1967.706568][ T44] ? fib6_walk (./include/linux/list.h:262 net/ipv6/ip6_fib.c:88 net/ipv6/ip6_fib.c:2229)
[ 1967.706637][ T44] port_cost (net/bridge/br_if.c:39)
[ 1967.706696][ T44] ? br_multicast_flood (??:?)
[ 1967.706765][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 1967.706834][ 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))
[ 1967.706906][ T44] br_port_carrier_check (net/bridge/br_if.c:80)
[ 1967.706976][ T44] br_device_event (net/bridge/br.c:101)
[ 1967.707046][ T44] ? fib6_ifdown (net/ipv6/route.c:4962)
[ 1967.707114][ T44] ? packet_sendmsg_spkt (af_packet.c:?)
[ 1967.707190][ T44] notifier_call_chain (kernel/notifier.c:85)
[ 1967.707259][ T44] netif_state_change (net/core/dev.c:1603)
[ 1967.707328][ T44] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[ 1967.707413][ T44] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[ 1967.707481][ T44] __linkwatch_run_queue (net/core/link_watch.c:240)
[ 1967.707550][ T44] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 1967.707617][ T44] linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[ 1967.707689][ T44] ? __linkwatch_run_queue (net/core/link_watch.c:213)
[ 1967.707758][ T44] process_one_work (kernel/workqueue.c:3314)
[ 1967.707827][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 1967.707896][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 1967.707965][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 1967.708034][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 1967.708102][ T44] kthread (kernel/kthread.c:436)
[ 1967.708156][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 1967.708242][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 1967.708310][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 1967.708379][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 1967.708463][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 1967.708532][ T44] ? kthread_affine_node (kernel/kthread.c:378)
Finger prints:
__schedule:schedule:schedule_preempt_disabled:__mutex_lock:__ethtool_get_link_ksettings
validate_chain:__lock_acquire:__mutex_lock:__ethtool_get_link_ksettings:port_cost
__schedule:schedule:schedule_preempt_disabled:__mutex_lock:addrconf_verify_work
__schedule:schedule:schedule_preempt_disabled:__mutex_lock:rtnl_dump_ifinfo