[ 49.283503][ T791] [ 49.283594][ T791] ======================================================== [ 49.283742][ T791] WARNING: possible irq lock inversion dependency detected [ 49.283875][ T791] 7.1.0-rc5-virtme #1 Not tainted [ 49.283973][ T791] -------------------------------------------------------- [ 49.284102][ T791] ip/791 just changed the state of lock: [ 49.284190][ T791] ffffffffb057e8b8 (acaddr_hash_lock){+.+.}-{3:3}, at: __ipv6_dev_ac_dec+0x236/0x5d0 [ 49.284356][ T791] but this lock was taken by another, SOFTIRQ-safe lock in the past: [ 49.284493][ T791] (&ndev->lock){++--}-{3:3} [ 49.284496][ T791] [ 49.284496][ T791] [ 49.284496][ T791] and interrupts could create inverse lock ordering between them. [ 49.284496][ T791] [ 49.284810][ T791] [ 49.284810][ T791] other info that might help us debug this: [ 49.284941][ T791] Possible interrupt unsafe locking scenario: [ 49.284941][ T791] [ 49.285078][ T791] CPU0 CPU1 [ 49.285165][ T791] ---- ---- [ 49.285252][ T791] lock(acaddr_hash_lock); [ 49.285341][ T791] local_irq_disable(); [ 49.285454][ T791] lock(&ndev->lock); [ 49.285563][ T791] lock(acaddr_hash_lock); [ 49.285673][ T791] [ 49.285740][ T791] lock(&ndev->lock); [ 49.285808][ T791] [ 49.285808][ T791] *** DEADLOCK *** [ 49.285808][ T791] [ 49.285942][ T791] 1 lock held by ip/791: [ 49.286009][ T791] #0: ffffffffb048c9c0 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x883/0xef0 [ 49.286166][ T791] [ 49.286166][ T791] the shortest dependencies between 2nd lock and 1st lock: [ 49.286318][ T791] -> (&ndev->lock){++--}-{3:3} { [ 49.286409][ T791] HARDIRQ-ON-W at: [ 49.286482][ T791] __lock_acquire+0x378/0xc10 [ 49.286597][ T791] lock_acquire.part.0+0xbc/0x260 [ 49.286705][ T791] _raw_write_lock_bh+0x38/0x50 [ 49.286817][ T791] addrconf_permanent_addr+0x108/0x9c0 [ 49.286954][ T791] addrconf_notify+0x151/0xf30 [ 49.287068][ T791] notifier_call_chain+0xb0/0x320 [ 49.287177][ T791] __dev_notify_flags+0xde/0x280 [ 49.287287][ T791] netif_change_flags+0xfe/0x190 [ 49.287396][ T791] do_setlink.isra.0+0x1cc3/0x2750 [ 49.287511][ T791] rtnl_newlink+0x8d1/0xef0 [ 49.287621][ T791] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 49.287730][ T791] netlink_rcv_skb+0x14e/0x3a0 [ 49.287841][ T791] netlink_unicast+0x486/0x750 [ 49.287956][ T791] netlink_sendmsg+0x735/0xc60 [ 49.288071][ T791] ____sys_sendmsg+0x419/0x850 [ 49.288183][ T791] ___sys_sendmsg+0x14e/0x1d0 [ 49.288294][ T791] __sys_sendmsg+0x145/0x1f0 [ 49.288405][ T791] do_syscall_64+0x117/0x590 [ 49.288517][ T791] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 49.288656][ T791] HARDIRQ-ON-R at: [ 49.288722][ T791] __lock_acquire+0x378/0xc10 [ 49.288832][ T791] lock_acquire.part.0+0xbc/0x260 [ 49.288948][ T791] _raw_read_lock_bh+0x44/0x80 [ 49.289058][ T791] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 49.289192][ T791] inet6_fill_link_af+0x5c/0xe0 [ 49.289301][ T791] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 49.289434][ T791] rtnl_getlink+0x9c9/0xeb0 [ 49.289553][ T791] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 49.289663][ T791] netlink_rcv_skb+0x14e/0x3a0 [ 49.289773][ T791] netlink_unicast+0x486/0x750 [ 49.289886][ T791] netlink_sendmsg+0x735/0xc60 [ 49.290004][ T791] ____sys_sendmsg+0x419/0x850 [ 49.290113][ T791] ___sys_sendmsg+0x14e/0x1d0 [ 49.290230][ T791] __sys_sendmsg+0x145/0x1f0 [ 49.290341][ T791] do_syscall_64+0x117/0x590 [ 49.290458][ T791] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 49.290602][ T791] IN-SOFTIRQ-W at: [ 49.290674][ T791] __lock_acquire+0x378/0xc10 [ 49.290789][ T791] lock_acquire.part.0+0xbc/0x260 [ 49.290905][ T791] _raw_write_lock+0x33/0x40 [ 49.291015][ T791] addrconf_rs_timer+0xb0/0x770 [ 49.291134][ T791] call_timer_fn+0x163/0x4f0 [ 49.291245][ T791] __run_timers+0x68f/0xab0 [ 49.291355][ T791] run_timer_softirq+0xf0/0x160 [ 49.291466][ T791] handle_softirqs+0x1d8/0x940 [ 49.291577][ T791] __irq_exit_rcu+0x103/0x1c0 [ 49.291693][ T791] irq_exit_rcu+0xe/0x30 [ 49.291803][ T791] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 49.291939][ T791] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 49.292069][ T791] _raw_spin_unlock_irqrestore+0x36/0x80 [ 49.292200][ T791] qlist_free_all+0x5c/0x110 [ 49.292318][ T791] kasan_quarantine_reduce+0x196/0x240 [ 49.292449][ T791] __kasan_slab_alloc+0x4b/0x70 [ 49.292558][ T791] kmem_cache_alloc_noprof+0x221/0x5f0 [ 49.292691][ T791] fuse_request_alloc+0x27/0x210 [ 49.292802][ T791] fuse_simple_background+0xbe/0x1b0 [ 49.292917][ T791] fuse_file_put+0x1f3/0x470 [ 49.293026][ T791] fuse_release+0x12c/0x230 [ 49.293137][ T791] __fput+0x363/0xac0 [ 49.293249][ T791] task_work_run+0x12b/0x240 [ 49.293362][ T791] do_exit+0x614/0xdc0 [ 49.293472][ T791] do_group_exit+0xb8/0x370 [ 49.293583][ T791] __x64_sys_exit_group+0x3c/0x50 [ 49.293694][ T791] x64_sys_call+0x102c/0x1530 [ 49.293807][ T791] do_syscall_64+0x117/0x590 [ 49.293974][ T791] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 49.294107][ T791] IN-SOFTIRQ-R at: [ 49.294172][ T791] __lock_acquire+0x378/0xc10 [ 49.294334][ T791] lock_acquire.part.0+0xbc/0x260 [ 49.294442][ T791] _raw_read_lock_bh+0x44/0x80 [ 49.294552][ T791] ipv6_get_lladdr+0xa8/0x3f0 [ 49.294711][ T791] addrconf_rs_timer+0x251/0x770 [ 49.294821][ T791] call_timer_fn+0x163/0x4f0 [ 49.294938][ T791] __run_timers+0x68f/0xab0 [ 49.295098][ T791] run_timer_softirq+0xf0/0x160 [ 49.295209][ T791] handle_softirqs+0x1d8/0x940 [ 49.295319][ T791] __irq_exit_rcu+0x103/0x1c0 [ 49.295429][ T791] irq_exit_rcu+0xe/0x30 [ 49.295593][ T791] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 49.295727][ T791] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 49.295912][ T791] _raw_spin_unlock_irqrestore+0x36/0x80 [ 49.296047][ T791] qlist_free_all+0x5c/0x110 [ 49.296158][ T791] kasan_quarantine_reduce+0x196/0x240 [ 49.296345][ T791] __kasan_slab_alloc+0x4b/0x70 [ 49.296457][ T791] kmem_cache_alloc_noprof+0x221/0x5f0 [ 49.296589][ T791] fuse_request_alloc+0x27/0x210 [ 49.296747][ T791] fuse_simple_background+0xbe/0x1b0 [ 49.296857][ T791] fuse_file_put+0x1f3/0x470 [ 49.296978][ T791] fuse_release+0x12c/0x230 [ 49.297142][ T791] __fput+0x363/0xac0 [ 49.297253][ T791] task_work_run+0x12b/0x240 [ 49.297364][ T791] do_exit+0x614/0xdc0 [ 49.297474][ T791] do_group_exit+0xb8/0x370 [ 49.297637][ T791] __x64_sys_exit_group+0x3c/0x50 [ 49.297747][ T791] x64_sys_call+0x102c/0x1530 [ 49.297860][ T791] do_syscall_64+0x117/0x590 [ 49.297987][ T791] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 49.298118][ T791] INITIAL USE at: [ 49.298185][ T791] __lock_acquire+0x378/0xc10 [ 49.298345][ T791] lock_acquire.part.0+0xbc/0x260 [ 49.298454][ T791] _raw_write_lock_bh+0x38/0x50 [ 49.298566][ T791] addrconf_permanent_addr+0x108/0x9c0 [ 49.298747][ T791] addrconf_notify+0x151/0xf30 [ 49.298858][ T791] notifier_call_chain+0xb0/0x320 [ 49.298972][ T791] __dev_notify_flags+0xde/0x280 [ 49.299134][ T791] netif_change_flags+0xfe/0x190 [ 49.299246][ T791] do_setlink.isra.0+0x1cc3/0x2750 [ 49.299357][ T791] rtnl_newlink+0x8d1/0xef0 [ 49.299469][ T791] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 49.299628][ T791] netlink_rcv_skb+0x14e/0x3a0 [ 49.299740][ T791] netlink_unicast+0x486/0x750 [ 49.299863][ T791] netlink_sendmsg+0x735/0xc60 [ 49.300026][ T791] ____sys_sendmsg+0x419/0x850 [ 49.300137][ T791] ___sys_sendmsg+0x14e/0x1d0 [ 49.300249][ T791] __sys_sendmsg+0x145/0x1f0 [ 49.300409][ T791] do_syscall_64+0x117/0x590 [ 49.300520][ T791] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 49.300658][ T791] INITIAL READ USE at: [ 49.300795][ T791] __lock_acquire+0x378/0xc10 [ 49.300910][ T791] lock_acquire.part.0+0xbc/0x260 [ 49.301040][ T791] _raw_read_lock_bh+0x44/0x80 [ 49.301199][ T791] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 49.301335][ T791] inet6_fill_link_af+0x5c/0xe0 [ 49.301445][ T791] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 49.301627][ T791] rtnl_getlink+0x9c9/0xeb0 [ 49.301738][ T791] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 49.301854][ T791] netlink_rcv_skb+0x14e/0x3a0 [ 49.301974][ T791] netlink_unicast+0x486/0x750 [ 49.302084][ T791] netlink_sendmsg+0x735/0xc60 [ 49.302195][ T791] ____sys_sendmsg+0x419/0x850 [ 49.302354][ T791] ___sys_sendmsg+0x14e/0x1d0 [ 49.302466][ T791] __sys_sendmsg+0x145/0x1f0 [ 49.302576][ T791] do_syscall_64+0x117/0x590 [ 49.302690][ T791] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 49.302870][ T791] } [ 49.302921][ T791] ... key at: [] __key.37+0x0/0x40 [ 49.303053][ T791] ... acquired at: [ 49.303168][ T791] __lock_acquire+0x508/0xc10 [ 49.303256][ T791] lock_acquire.part.0+0xbc/0x260 [ 49.303341][ T791] _raw_spin_lock+0x33/0x40 [ 49.303427][ T791] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 49.303583][ T791] __ipv6_dev_ac_inc+0x57e/0x930 [ 49.303669][ T791] addrconf_join_anycast+0x1bc/0x260 [ 49.303755][ T791] __ipv6_ifa_notify+0x75b/0xad0 [ 49.303840][ T791] addrconf_dad_completed+0x14b/0xe10 [ 49.303979][ T791] addrconf_dad_work+0x3c1/0x930 [ 49.304064][ T791] process_one_work+0xdf8/0x1410 [ 49.304150][ T791] worker_thread+0x4f1/0xd60 [ 49.304241][ T791] kthread+0x367/0x460 [ 49.304352][ T791] ret_from_fork+0x474/0x6b0 [ 49.304439][ T791] ret_from_fork_asm+0x11/0x20 [ 49.304526][ T791] [ 49.304569][ T791] -> (acaddr_hash_lock){+.+.}-{3:3} { [ 49.304659][ T791] HARDIRQ-ON-W at: [ 49.304773][ T791] __lock_acquire+0x378/0xc10 [ 49.304883][ T791] lock_acquire.part.0+0xbc/0x260 [ 49.304993][ T791] _raw_spin_lock+0x33/0x40 [ 49.305150][ T791] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 49.305285][ T791] __ipv6_dev_ac_inc+0x57e/0x930 [ 49.305394][ T791] addrconf_join_anycast+0x1bc/0x260 [ 49.305550][ T791] __ipv6_ifa_notify+0x75b/0xad0 [ 49.305658][ T791] addrconf_dad_completed+0x14b/0xe10 [ 49.305767][ T791] addrconf_dad_work+0x3c1/0x930 [ 49.305875][ T791] process_one_work+0xdf8/0x1410 [ 49.306037][ T791] worker_thread+0x4f1/0xd60 [ 49.306147][ T791] kthread+0x367/0x460 [ 49.306234][ T791] ret_from_fork+0x474/0x6b0 [ 49.306389][ T791] ret_from_fork_asm+0x11/0x20 [ 49.306497][ T791] SOFTIRQ-ON-W at: [ 49.306561][ T791] __lock_acquire+0x378/0xc10 [ 49.306670][ T791] lock_acquire.part.0+0xbc/0x260 [ 49.306828][ T791] _raw_spin_lock+0x33/0x40 [ 49.306941][ T791] __ipv6_dev_ac_dec+0x236/0x5d0 [ 49.307047][ T791] addrconf_leave_anycast+0x1bc/0x260 [ 49.307204][ T791] __ipv6_ifa_notify+0x6b4/0xad0 [ 49.307314][ T791] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 49.307423][ T791] addrconf_notify+0x2c8/0xf30 [ 49.307581][ T791] notifier_call_chain+0xb0/0x320 [ 49.307688][ T791] __dev_notify_flags+0x165/0x280 [ 49.307796][ T791] netif_change_flags+0xfe/0x190 [ 49.307958][ T791] do_setlink.isra.0+0x1cc3/0x2750 [ 49.308065][ T791] rtnl_newlink+0x8d1/0xef0 [ 49.308174][ T791] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 49.308334][ T791] netlink_rcv_skb+0x14e/0x3a0 [ 49.308442][ T791] netlink_unicast+0x486/0x750 [ 49.308549][ T791] netlink_sendmsg+0x735/0xc60 [ 49.308658][ T791] ____sys_sendmsg+0x419/0x850 [ 49.308816][ T791] ___sys_sendmsg+0x14e/0x1d0 [ 49.308927][ T791] __sys_sendmsg+0x145/0x1f0 [ 49.309034][ T791] do_syscall_64+0x117/0x590 [ 49.309191][ T791] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 49.309319][ T791] INITIAL USE at: [ 49.309386][ T791] __lock_acquire+0x378/0xc10 [ 49.309540][ T791] lock_acquire.part.0+0xbc/0x260 [ 49.309647][ T791] _raw_spin_lock+0x33/0x40 [ 49.309755][ T791] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 49.309936][ T791] __ipv6_dev_ac_inc+0x57e/0x930 [ 49.310044][ T791] addrconf_join_anycast+0x1bc/0x260 [ 49.310152][ T791] __ipv6_ifa_notify+0x75b/0xad0 [ 49.310308][ T791] addrconf_dad_completed+0x14b/0xe10 [ 49.310417][ T791] addrconf_dad_work+0x3c1/0x930 [ 49.310525][ T791] process_one_work+0xdf8/0x1410 [ 49.310633][ T791] worker_thread+0x4f1/0xd60 [ 49.310792][ T791] kthread+0x367/0x460 [ 49.310878][ T791] ret_from_fork+0x474/0x6b0 [ 49.310991][ T791] ret_from_fork_asm+0x11/0x20 [ 49.311148][ T791] } [ 49.311191][ T791] ... key at: [] acaddr_hash_lock+0x18/0x45a0 [ 49.311320][ T791] ... acquired at: [ 49.311384][ T791] mark_lock+0x1d7/0xa00 [ 49.311518][ T791] mark_usage+0x105/0x170 [ 49.311603][ T791] __lock_acquire+0x378/0xc10 [ 49.311688][ T791] lock_acquire.part.0+0xbc/0x260 [ 49.311773][ T791] _raw_spin_lock+0x33/0x40 [ 49.311907][ T791] __ipv6_dev_ac_dec+0x236/0x5d0 [ 49.311994][ T791] addrconf_leave_anycast+0x1bc/0x260 [ 49.312079][ T791] __ipv6_ifa_notify+0x6b4/0xad0 [ 49.312166][ T791] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 49.312301][ T791] addrconf_notify+0x2c8/0xf30 [ 49.312386][ T791] notifier_call_chain+0xb0/0x320 [ 49.312471][ T791] __dev_notify_flags+0x165/0x280 [ 49.312558][ T791] netif_change_flags+0xfe/0x190 [ 49.312694][ T791] do_setlink.isra.0+0x1cc3/0x2750 [ 49.312782][ T791] rtnl_newlink+0x8d1/0xef0 [ 49.312866][ T791] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 49.312955][ T791] netlink_rcv_skb+0x14e/0x3a0 [ 49.313087][ T791] netlink_unicast+0x486/0x750 [ 49.313172][ T791] netlink_sendmsg+0x735/0xc60 [ 49.313259][ T791] ____sys_sendmsg+0x419/0x850 [ 49.313343][ T791] ___sys_sendmsg+0x14e/0x1d0 [ 49.313476][ T791] __sys_sendmsg+0x145/0x1f0 [ 49.313563][ T791] do_syscall_64+0x117/0x590 [ 49.313647][ T791] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 49.313751][ T791] [ 49.313840][ T791] [ 49.313840][ T791] stack backtrace: [ 49.313951][ T791] CPU: 0 UID: 0 PID: 791 Comm: ip Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 49.313954][ T791] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 49.313957][ T791] Call Trace: [ 49.313958][ T791] [ 49.313959][ T791] dump_stack_lvl+0x6f/0xa0 [ 49.313964][ T791] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 49.313967][ T791] mark_lock_irq+0x989/0x9c0 [ 49.313970][ T791] mark_lock+0x1d7/0xa00 [ 49.313971][ T791] mark_usage+0x105/0x170 [ 49.313973][ T791] __lock_acquire+0x378/0xc10 [ 49.313975][ T791] lock_acquire.part.0+0xbc/0x260 [ 49.313976][ T791] ? __ipv6_dev_ac_dec+0x236/0x5d0 [ 49.313978][ T791] ? rcu_is_watching+0x15/0xd0 [ 49.313981][ T791] ? do_raw_read_unlock+0x70/0x70 [ 49.313983][ T791] ? lock_acquire+0x134/0x160 [ 49.313985][ T791] _raw_spin_lock+0x33/0x40 [ 49.313986][ T791] ? __ipv6_dev_ac_dec+0x236/0x5d0 [ 49.313988][ T791] __ipv6_dev_ac_dec+0x236/0x5d0 [ 49.313990][ T791] addrconf_leave_anycast+0x1bc/0x260 [ 49.313992][ T791] ? inet6_dump_ifinfo+0x6e0/0x6e0 [ 49.313993][ T791] ? __ipv6_isatap_ifid+0x210/0x210 [ 49.313995][ T791] ? nlmsg_notify+0x62/0x250 [ 49.313998][ T791] __ipv6_ifa_notify+0x6b4/0xad0 [ 49.313999][ T791] ? cleanup_prefix_route+0x550/0x550 [ 49.314002][ T791] ? find_held_lock+0x2b/0x80 [ 49.314004][ T791] ? __lock_release.isra.0+0x6b/0x1a0 [ 49.314006][ T791] ? __rwlock_init+0x150/0x150 [ 49.314007][ T791] ? mark_held_locks+0x40/0x70 [ 49.314009][ T791] ? addrconf_ifdown.isra.0+0xa70/0x15f0 [ 49.314011][ T791] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 49.314014][ T791] ? addrconf_dad_run+0x1b0/0x1b0 [ 49.314016][ T791] ? neigh_flush_one+0x580/0x580 [ 49.314018][ T791] ? mark_held_locks+0x40/0x70 [ 49.314020][ T791] addrconf_notify+0x2c8/0xf30 [ 49.314022][ T791] ? team_port_get_rtnl+0x65/0xc0 [ 49.314025][ T791] notifier_call_chain+0xb0/0x320 [ 49.314027][ T791] __dev_notify_flags+0x165/0x280 [ 49.314029][ T791] ? netif_change_name+0x8c0/0x8c0 [ 49.314031][ T791] ? netif_set_allmulti+0x250/0x250 [ 49.314032][ T791] ? is_bpf_text_address+0x68/0x110 [ 49.314036][ T791] netif_change_flags+0xfe/0x190 [ 49.314038][ T791] do_setlink.isra.0+0x1cc3/0x2750 [ 49.314041][ T791] ? rtnl_link_get_size+0x350/0x350 [ 49.314042][ T791] ? rcu_lockdep_current_cpu_online+0x39/0x1b0 [ 49.314045][ T791] ? rcu_read_lock_any_held+0x3c/0x90 [ 49.314046][ T791] ? validate_chain+0x38b/0xc20 [ 49.314048][ T791] ? rcu_read_lock_any_held+0x66/0x90 [ 49.314049][ T791] ? stack_depot_save_flags+0x367/0x770 [ 49.314052][ T791] ? __kernel_text_address+0x12/0x30 [ 49.314053][ T791] ? __lock_acquire+0x508/0xc10 [ 49.314055][ T791] ? lock_acquire.part.0+0xbc/0x260 [ 49.314057][ T791] ? rtnl_newlink+0x883/0xef0 [ 49.314058][ T791] ? rcu_is_watching+0x15/0xd0 [ 49.314060][ T791] ? lock_acquire+0x134/0x160 [ 49.314061][ T791] ? rcu_is_watching+0x15/0xd0 [ 49.314063][ T791] ? rcu_is_watching+0x15/0xd0 [ 49.314064][ T791] ? trace_contention_end+0xb3/0x1a0 [ 49.314067][ T791] ? __mutex_lock+0x1db/0x2010 [ 49.314068][ T791] ? __mutex_lock+0x9b2/0x2010 [ 49.314070][ T791] ? rtnl_newlink+0x883/0xef0 [ 49.314072][ T791] ? ww_mutex_lock+0x160/0x160 [ 49.314074][ T791] ? __rtnl_newlink+0x3fa/0xa50 [ 49.314076][ T791] rtnl_newlink+0x8d1/0xef0 [ 49.314078][ T791] ? lock_acquire.part.0+0xbc/0x260 [ 49.314079][ T791] ? find_held_lock+0x2b/0x80 [ 49.314081][ T791] ? __rtnl_newlink+0xa50/0xa50 [ 49.314082][ T791] ? mark_usage+0x61/0x170 [ 49.314084][ T791] ? __lock_release.isra.0+0x6b/0x1a0 [ 49.314086][ T791] ? lock_acquire.part.0+0xbc/0x260 [ 49.314087][ T791] ? find_held_lock+0x2b/0x80 [ 49.314089][ T791] ? __rtnl_newlink+0xa50/0xa50 [ 49.314090][ T791] ? __lock_release.isra.0+0x6b/0x1a0 [ 49.314092][ T791] ? __rtnl_newlink+0xa50/0xa50 [ 49.314093][ T791] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 49.314095][ T791] ? validate_chain+0x38b/0xc20 [ 49.314096][ T791] ? rtnl_link_fill+0x920/0x920 [ 49.314098][ T791] ? __lock_acquire+0x508/0xc10 [ 49.314100][ T791] ? lock_acquire.part.0+0xbc/0x260 [ 49.314101][ T791] ? find_held_lock+0x2b/0x80 [ 49.314103][ T791] netlink_rcv_skb+0x14e/0x3a0 [ 49.314105][ T791] ? rtnl_link_fill+0x920/0x920 [ 49.314107][ T791] ? netlink_ack+0xcf0/0xcf0 [ 49.314109][ T791] ? netlink_deliver_tap+0xc5/0x330 [ 49.314111][ T791] ? netlink_deliver_tap+0x13c/0x330 [ 49.314113][ T791] netlink_unicast+0x486/0x750 [ 49.314115][ T791] ? netlink_attachskb+0x810/0x810 [ 49.314117][ T791] ? __lock_acquire+0x508/0xc10 [ 49.314119][ T791] netlink_sendmsg+0x735/0xc60 [ 49.314121][ T791] ? netlink_unicast+0x750/0x750 [ 49.314124][ T791] ? __might_fault+0x97/0x140 [ 49.314126][ T791] ____sys_sendmsg+0x419/0x850 [ 49.314128][ T791] ? copy_msghdr_from_user+0x2a0/0x460 [ 49.314130][ T791] ? get_timestamp.constprop.0+0x390/0x390 [ 49.314132][ T791] ? move_addr_to_kernel+0x40/0x40 [ 49.314134][ T791] ? stack_depot_save_flags+0x367/0x770 [ 49.314135][ T791] ? validate_chain+0x38b/0xc20 [ 49.314137][ T791] ___sys_sendmsg+0x14e/0x1d0 [ 49.314139][ T791] ? __call_rcu_common.constprop.0+0xb2/0xa10 [ 49.314141][ T791] ? copy_msghdr_from_user+0x460/0x460 [ 49.314147][ T791] __sys_sendmsg+0x145/0x1f0 [ 49.314148][ T791] ? __sys_sendmsg_sock+0x20/0x20 [ 49.314149][ T791] ? __call_rcu_common.constprop.0+0x3d1/0xa10 [ 49.314151][ T791] ? do_raw_spin_unlock+0x59/0x250 [ 49.314153][ T791] ? rcu_is_watching+0x15/0xd0 [ 49.314155][ T791] do_syscall_64+0x117/0x590 [ 49.314156][ T791] ? trace_hardirqs_off+0xd/0x30 [ 49.314159][ T791] ? exc_page_fault+0xee/0x100 [ 49.314161][ T791] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 49.314163][ T791] RIP: 0033:0x7f547016708e [ 49.314166][ T791] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa [ 49.314168][ T791] RSP: 002b:00007ffdb7d5df70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 49.314171][ T791] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f547016708e [ 49.314172][ T791] RDX: 0000000000000000 RSI: 00007ffdb7d5e020 RDI: 0000000000000005 [ 49.314173][ T791] RBP: 00007ffdb7d5df80 R08: 0000000000000000 R09: 0000000000000000 [ 49.314174][ T791] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a198724 [ 49.314175][ T791] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffdb7d5e6e0 [ 49.314177][ T791]