[ 9.052810][ T186] ip (186) used greatest stack depth: 24272 bytes left [ 9.543792][ T206] 8021q: 802.1Q VLAN Support v1.8 [ 21.420894][ T375] [ 21.420986][ T375] ======================================================== [ 21.421119][ T375] WARNING: possible irq lock inversion dependency detected [ 21.421248][ T375] 7.1.0-rc5-virtme #1 Not tainted [ 21.421334][ T375] -------------------------------------------------------- [ 21.421467][ T375] ip/375 just changed the state of lock: [ 21.421556][ T375] ffffffffb197e8b8 (acaddr_hash_lock){+.+.}-{3:3}, at: __ipv6_dev_ac_dec+0x236/0x5d0 [ 21.421714][ T375] but this lock was taken by another, SOFTIRQ-READ-safe lock in the past: [ 21.421841][ T375] (&ndev->lock){++.-}-{3:3} [ 21.421843][ T375] [ 21.421843][ T375] [ 21.421843][ T375] and interrupts could create inverse lock ordering between them. [ 21.421843][ T375] [ 21.422150][ T375] [ 21.422150][ T375] other info that might help us debug this: [ 21.422274][ T375] Possible interrupt unsafe locking scenario: [ 21.422274][ T375] [ 21.422411][ T375] CPU0 CPU1 [ 21.422498][ T375] ---- ---- [ 21.422585][ T375] lock(acaddr_hash_lock); [ 21.422670][ T375] local_irq_disable(); [ 21.422775][ T375] lock(&ndev->lock); [ 21.422882][ T375] lock(acaddr_hash_lock); [ 21.422988][ T375] [ 21.423052][ T375] lock(&ndev->lock); [ 21.423118][ T375] [ 21.423118][ T375] *** DEADLOCK *** [ 21.423118][ T375] [ 21.423246][ T375] 1 lock held by ip/375: [ 21.423309][ T375] #0: ffffffffb188c9c0 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x883/0xef0 [ 21.423467][ T375] [ 21.423467][ T375] the shortest dependencies between 2nd lock and 1st lock: [ 21.423617][ T375] -> (&ndev->lock){++.-}-{3:3} { [ 21.423709][ T375] HARDIRQ-ON-W at: [ 21.423775][ T375] __lock_acquire+0x378/0xc10 [ 21.423889][ T375] lock_acquire.part.0+0xbc/0x260 [ 21.423995][ T375] _raw_write_lock_bh+0x38/0x50 [ 21.424101][ T375] addrconf_permanent_addr+0x108/0x9c0 [ 21.424230][ T375] addrconf_notify+0x151/0xf30 [ 21.424336][ T375] notifier_call_chain+0xb0/0x320 [ 21.424446][ T375] __dev_notify_flags+0xde/0x280 [ 21.424565][ T375] netif_change_flags+0xfe/0x190 [ 21.424681][ T375] do_setlink.isra.0+0x1cc3/0x2750 [ 21.424794][ T375] rtnl_newlink+0x8d1/0xef0 [ 21.424905][ T375] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 21.425017][ T375] netlink_rcv_skb+0x14e/0x3a0 [ 21.425128][ T375] netlink_unicast+0x486/0x750 [ 21.425244][ T375] netlink_sendmsg+0x735/0xc60 [ 21.425355][ T375] ____sys_sendmsg+0x419/0x850 [ 21.425476][ T375] ___sys_sendmsg+0x14e/0x1d0 [ 21.425589][ T375] __sys_sendmsg+0x145/0x1f0 [ 21.425744][ T375] do_syscall_64+0x117/0x590 [ 21.425851][ T375] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 21.425980][ T375] HARDIRQ-ON-R at: [ 21.426045][ T375] __lock_acquire+0x378/0xc10 [ 21.426198][ T375] lock_acquire.part.0+0xbc/0x260 [ 21.426304][ T375] _raw_read_lock_bh+0x44/0x80 [ 21.426415][ T375] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 21.426588][ T375] inet6_fill_link_af+0x5c/0xe0 [ 21.426691][ T375] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 21.426816][ T375] rtnl_getlink+0x9c9/0xeb0 [ 21.426968][ T375] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 21.427072][ T375] netlink_rcv_skb+0x14e/0x3a0 [ 21.427175][ T375] netlink_unicast+0x486/0x750 [ 21.427325][ T375] netlink_sendmsg+0x735/0xc60 [ 21.427430][ T375] ____sys_sendmsg+0x419/0x850 [ 21.427535][ T375] ___sys_sendmsg+0x14e/0x1d0 [ 21.427687][ T375] __sys_sendmsg+0x145/0x1f0 [ 21.427790][ T375] do_syscall_64+0x117/0x590 [ 21.427893][ T375] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 21.428062][ T375] IN-SOFTIRQ-R at: [ 21.428124][ T375] __lock_acquire+0x378/0xc10 [ 21.428227][ T375] lock_acquire.part.0+0xbc/0x260 [ 21.428330][ T375] _raw_read_lock_bh+0x44/0x80 [ 21.428486][ T375] ipv6_get_lladdr+0xa8/0x3f0 [ 21.428597][ T375] ndisc_send_ns+0xf3/0x120 [ 21.428705][ T375] ndisc_solicit+0x3a2/0x480 [ 21.428856][ T375] neigh_probe+0xb3/0x100 [ 21.428962][ T375] neigh_timer_handler+0x191/0x1210 [ 21.429066][ T375] call_timer_fn+0x163/0x4f0 [ 21.429220][ T375] __run_timers+0x68f/0xab0 [ 21.429324][ T375] run_timer_softirq+0xf0/0x160 [ 21.429432][ T375] handle_softirqs+0x1d8/0x940 [ 21.429539][ T375] __irq_exit_rcu+0x103/0x1c0 [ 21.429646][ T375] irq_exit_rcu+0xe/0x30 [ 21.429750][ T375] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 21.429923][ T375] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 21.430047][ T375] lock_release+0xdc/0x1f0 [ 21.430151][ T375] unwind_next_frame+0x696/0x1ea0 [ 21.430303][ T375] arch_stack_walk+0xd7/0x130 [ 21.430412][ T375] stack_trace_save+0x93/0xc0 [ 21.430519][ T375] set_track_prepare+0x62/0x90 [ 21.430672][ T375] ___slab_alloc+0xcb/0x300 [ 21.430776][ T375] __kmalloc_cache_noprof+0x25d/0x620 [ 21.430903][ T375] kmem_cache_free+0x368/0x560 [ 21.431054][ T375] __put_anon_vma+0xf0/0x320 [ 21.431160][ T375] unlink_anon_vmas+0x52c/0x900 [ 21.431265][ T375] free_pgtables+0x32a/0x960 [ 21.431376][ T375] exit_mmap+0x45f/0x970 [ 21.431527][ T375] mmput+0xa9/0x450 [ 21.431613][ T375] exec_mmap+0x2ab/0x3f0 [ 21.431717][ T375] begin_new_exec+0x39d/0x15f0 [ 21.431866][ T375] load_elf_binary+0x7a2/0x2cb0 [ 21.431972][ T375] exec_binprm+0x265/0x630 [ 21.432075][ T375] bprm_execve+0x190/0x4d0 [ 21.432225][ T375] do_execveat_common.isra.0+0x3e4/0x4f0 [ 21.432351][ T375] __x64_sys_execve+0x91/0xc0 [ 21.432458][ T375] do_syscall_64+0x117/0x590 [ 21.432616][ T375] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 21.432740][ T375] INITIAL USE at: [ 21.432803][ T375] __lock_acquire+0x378/0xc10 [ 21.432908][ T375] lock_acquire.part.0+0xbc/0x260 [ 21.433063][ T375] _raw_write_lock_bh+0x38/0x50 [ 21.433167][ T375] addrconf_permanent_addr+0x108/0x9c0 [ 21.433293][ T375] addrconf_notify+0x151/0xf30 [ 21.433446][ T375] notifier_call_chain+0xb0/0x320 [ 21.433552][ T375] __dev_notify_flags+0xde/0x280 [ 21.433658][ T375] netif_change_flags+0xfe/0x190 [ 21.433809][ T375] do_setlink.isra.0+0x1cc3/0x2750 [ 21.433913][ T375] rtnl_newlink+0x8d1/0xef0 [ 21.434017][ T375] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 21.434169][ T375] netlink_rcv_skb+0x14e/0x3a0 [ 21.434276][ T375] netlink_unicast+0x486/0x750 [ 21.434386][ T375] netlink_sendmsg+0x735/0xc60 [ 21.434538][ T375] ____sys_sendmsg+0x419/0x850 [ 21.434641][ T375] ___sys_sendmsg+0x14e/0x1d0 [ 21.434745][ T375] __sys_sendmsg+0x145/0x1f0 [ 21.434898][ T375] do_syscall_64+0x117/0x590 [ 21.435003][ T375] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 21.435125][ T375] INITIAL READ USE at: [ 21.435208][ T375] __lock_acquire+0x378/0xc10 [ 21.435361][ T375] lock_acquire.part.0+0xbc/0x260 [ 21.435490][ T375] _raw_read_lock_bh+0x44/0x80 [ 21.435596][ T375] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 21.435763][ T375] inet6_fill_link_af+0x5c/0xe0 [ 21.435867][ T375] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 21.436035][ T375] rtnl_getlink+0x9c9/0xeb0 [ 21.436140][ T375] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 21.436245][ T375] netlink_rcv_skb+0x14e/0x3a0 [ 21.436349][ T375] netlink_unicast+0x486/0x750 [ 21.436503][ T375] netlink_sendmsg+0x735/0xc60 [ 21.436608][ T375] ____sys_sendmsg+0x419/0x850 [ 21.436712][ T375] ___sys_sendmsg+0x14e/0x1d0 [ 21.436863][ T375] __sys_sendmsg+0x145/0x1f0 [ 21.436968][ T375] do_syscall_64+0x117/0x590 [ 21.437071][ T375] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 21.437243][ T375] } [ 21.437286][ T375] ... key at: [] __key.37+0x0/0x40 [ 21.437418][ T375] ... acquired at: [ 21.437481][ T375] __lock_acquire+0x508/0xc10 [ 21.437567][ T375] lock_acquire.part.0+0xbc/0x260 [ 21.437650][ T375] _raw_spin_lock+0x33/0x40 [ 21.437731][ T375] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 21.437834][ T375] __ipv6_dev_ac_inc+0x57e/0x930 [ 21.437963][ T375] addrconf_join_anycast+0x1bc/0x260 [ 21.438048][ T375] __ipv6_ifa_notify+0x75b/0xad0 [ 21.438131][ T375] addrconf_dad_completed+0x14b/0xe10 [ 21.438214][ T375] addrconf_dad_work+0x3c1/0x930 [ 21.438341][ T375] process_one_work+0xdf8/0x1410 [ 21.438429][ T375] worker_thread+0x4f1/0xd60 [ 21.438513][ T375] kthread+0x367/0x460 [ 21.438577][ T375] ret_from_fork+0x474/0x6b0 [ 21.438708][ T375] ret_from_fork_asm+0x11/0x20 [ 21.438793][ T375] [ 21.438836][ T375] -> (acaddr_hash_lock){+.+.}-{3:3} { [ 21.438922][ T375] HARDIRQ-ON-W at: [ 21.438985][ T375] __lock_acquire+0x378/0xc10 [ 21.439137][ T375] lock_acquire.part.0+0xbc/0x260 [ 21.439243][ T375] _raw_spin_lock+0x33/0x40 [ 21.439349][ T375] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 21.439523][ T375] __ipv6_dev_ac_inc+0x57e/0x930 [ 21.439627][ T375] addrconf_join_anycast+0x1bc/0x260 [ 21.439732][ T375] __ipv6_ifa_notify+0x75b/0xad0 [ 21.439884][ T375] addrconf_dad_completed+0x14b/0xe10 [ 21.439990][ T375] addrconf_dad_work+0x3c1/0x930 [ 21.440095][ T375] process_one_work+0xdf8/0x1410 [ 21.440246][ T375] worker_thread+0x4f1/0xd60 [ 21.440353][ T375] kthread+0x367/0x460 [ 21.440441][ T375] ret_from_fork+0x474/0x6b0 [ 21.440595][ T375] ret_from_fork_asm+0x11/0x20 [ 21.440702][ T375] SOFTIRQ-ON-W at: [ 21.440766][ T375] __lock_acquire+0x378/0xc10 [ 21.440875][ T375] lock_acquire.part.0+0xbc/0x260 [ 21.441025][ T375] _raw_spin_lock+0x33/0x40 [ 21.441129][ T375] __ipv6_dev_ac_dec+0x236/0x5d0 [ 21.441232][ T375] addrconf_leave_anycast+0x1bc/0x260 [ 21.441390][ T375] __ipv6_ifa_notify+0x6b4/0xad0 [ 21.441495][ T375] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 21.441601][ T375] addrconf_notify+0x64c/0xf30 [ 21.441752][ T375] notifier_call_chain+0xb0/0x320 [ 21.441857][ T375] netif_set_mtu_ext+0x354/0x5f0 [ 21.441963][ T375] do_setlink.isra.0+0x784/0x2750 [ 21.442067][ T375] rtnl_newlink+0x8d1/0xef0 [ 21.442216][ T375] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 21.442318][ T375] netlink_rcv_skb+0x14e/0x3a0 [ 21.442427][ T375] netlink_unicast+0x486/0x750 [ 21.442579][ T375] netlink_sendmsg+0x735/0xc60 [ 21.442687][ T375] ____sys_sendmsg+0x419/0x850 [ 21.442792][ T375] ___sys_sendmsg+0x14e/0x1d0 [ 21.442943][ T375] __sys_sendmsg+0x145/0x1f0 [ 21.443046][ T375] do_syscall_64+0x117/0x590 [ 21.443151][ T375] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 21.443322][ T375] INITIAL USE at: [ 21.443388][ T375] __lock_acquire+0x378/0xc10 [ 21.443491][ T375] lock_acquire.part.0+0xbc/0x260 [ 21.443596][ T375] _raw_spin_lock+0x33/0x40 [ 21.443747][ T375] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 21.443872][ T375] __ipv6_dev_ac_inc+0x57e/0x930 [ 21.443977][ T375] addrconf_join_anycast+0x1bc/0x260 [ 21.444131][ T375] __ipv6_ifa_notify+0x75b/0xad0 [ 21.444236][ T375] addrconf_dad_completed+0x14b/0xe10 [ 21.444364][ T375] addrconf_dad_work+0x3c1/0x930 [ 21.444531][ T375] process_one_work+0xdf8/0x1410 [ 21.444637][ T375] worker_thread+0x4f1/0xd60 [ 21.444742][ T375] kthread+0x367/0x460 [ 21.444873][ T375] ret_from_fork+0x474/0x6b0 [ 21.444978][ T375] ret_from_fork_asm+0x11/0x20 [ 21.445083][ T375] } [ 21.445125][ T375] ... key at: [] acaddr_hash_lock+0x18/0x45a0 [ 21.445298][ T375] ... acquired at: [ 21.445363][ T375] mark_lock+0x1d7/0xa00 [ 21.445451][ T375] mark_usage+0x105/0x170 [ 21.445537][ T375] __lock_acquire+0x378/0xc10 [ 21.445667][ T375] lock_acquire.part.0+0xbc/0x260 [ 21.445749][ T375] _raw_spin_lock+0x33/0x40 [ 21.445833][ T375] __ipv6_dev_ac_dec+0x236/0x5d0 [ 21.445916][ T375] addrconf_leave_anycast+0x1bc/0x260 [ 21.446048][ T375] __ipv6_ifa_notify+0x6b4/0xad0 [ 21.446129][ T375] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 21.446213][ T375] addrconf_notify+0x64c/0xf30 [ 21.446296][ T375] notifier_call_chain+0xb0/0x320 [ 21.446429][ T375] netif_set_mtu_ext+0x354/0x5f0 [ 21.446513][ T375] do_setlink.isra.0+0x784/0x2750 [ 21.446597][ T375] rtnl_newlink+0x8d1/0xef0 [ 21.446682][ T375] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 21.446811][ T375] netlink_rcv_skb+0x14e/0x3a0 [ 21.446897][ T375] netlink_unicast+0x486/0x750 [ 21.446981][ T375] netlink_sendmsg+0x735/0xc60 [ 21.447065][ T375] ____sys_sendmsg+0x419/0x850 [ 21.447195][ T375] ___sys_sendmsg+0x14e/0x1d0 [ 21.447280][ T375] __sys_sendmsg+0x145/0x1f0 [ 21.447363][ T375] do_syscall_64+0x117/0x590 [ 21.447451][ T375] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 21.447601][ T375] [ 21.447644][ T375] [ 21.447644][ T375] stack backtrace: [ 21.447750][ T375] CPU: 2 UID: 0 PID: 375 Comm: ip Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 21.447754][ T375] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 21.447755][ T375] Call Trace: [ 21.447757][ T375] [ 21.447758][ T375] dump_stack_lvl+0x6f/0xa0 [ 21.447763][ T375] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 21.447766][ T375] mark_lock_irq+0x989/0x9c0 [ 21.447769][ T375] mark_lock+0x1d7/0xa00 [ 21.447770][ T375] mark_usage+0x105/0x170 [ 21.447772][ T375] __lock_acquire+0x378/0xc10 [ 21.447774][ T375] lock_acquire.part.0+0xbc/0x260 [ 21.447775][ T375] ? __ipv6_dev_ac_dec+0x236/0x5d0 [ 21.447777][ T375] ? rcu_is_watching+0x15/0xd0 [ 21.447780][ T375] ? do_raw_read_unlock+0x70/0x70 [ 21.447782][ T375] ? lock_acquire+0x134/0x160 [ 21.447784][ T375] _raw_spin_lock+0x33/0x40 [ 21.447785][ T375] ? __ipv6_dev_ac_dec+0x236/0x5d0 [ 21.447786][ T375] __ipv6_dev_ac_dec+0x236/0x5d0 [ 21.447789][ T375] addrconf_leave_anycast+0x1bc/0x260 [ 21.447790][ T375] ? inet6_dump_ifinfo+0x6e0/0x6e0 [ 21.447792][ T375] ? __ipv6_isatap_ifid+0x210/0x210 [ 21.447794][ T375] ? nlmsg_notify+0x62/0x250 [ 21.447796][ T375] __ipv6_ifa_notify+0x6b4/0xad0 [ 21.447798][ T375] ? cleanup_prefix_route+0x550/0x550 [ 21.447800][ T375] ? find_held_lock+0x2b/0x80 [ 21.447802][ T375] ? __lock_release.isra.0+0x6b/0x1a0 [ 21.447803][ T375] ? __rwlock_init+0x150/0x150 [ 21.447805][ T375] ? mark_held_locks+0x40/0x70 [ 21.447807][ T375] ? addrconf_ifdown.isra.0+0xa70/0x15f0 [ 21.447808][ T375] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 21.447811][ T375] ? addrconf_dad_run+0x1b0/0x1b0 [ 21.447813][ T375] ? rtmsg_ifinfo_build_skb+0x144/0x250 [ 21.447815][ T375] addrconf_notify+0x64c/0xf30 [ 21.447817][ T375] ? team_port_get_rtnl+0x65/0xc0 [ 21.447820][ T375] notifier_call_chain+0xb0/0x320 [ 21.447824][ T375] netif_set_mtu_ext+0x354/0x5f0 [ 21.447825][ T375] ? dev_validate_mtu+0x180/0x180 [ 21.447826][ T375] ? __lock_release.isra.0+0x6b/0x1a0 [ 21.447828][ T375] ? rtnl_af_lookup+0x290/0x290 [ 21.447830][ T375] ? is_bpf_text_address+0x72/0x110 [ 21.447833][ T375] do_setlink.isra.0+0x784/0x2750 [ 21.447835][ T375] ? rtnl_link_get_size+0x350/0x350 [ 21.447837][ T375] ? rcu_lockdep_current_cpu_online+0x39/0x1b0 [ 21.447839][ T375] ? rcu_read_lock_any_held+0x3c/0x90 [ 21.447841][ T375] ? validate_chain+0x38b/0xc20 [ 21.447842][ T375] ? rcu_read_lock_any_held+0x66/0x90 [ 21.447843][ T375] ? stack_depot_save_flags+0x367/0x770 [ 21.447847][ T375] ? __kernel_text_address+0x12/0x30 [ 21.447848][ T375] ? __lock_acquire+0x508/0xc10 [ 21.447850][ T375] ? lock_acquire.part.0+0xbc/0x260 [ 21.447852][ T375] ? rtnl_newlink+0x883/0xef0 [ 21.447853][ T375] ? rcu_is_watching+0x15/0xd0 [ 21.447855][ T375] ? lock_acquire+0x134/0x160 [ 21.447856][ T375] ? rcu_is_watching+0x15/0xd0 [ 21.447857][ T375] ? rcu_is_watching+0x15/0xd0 [ 21.447859][ T375] ? trace_contention_end+0xb3/0x1a0 [ 21.447861][ T375] ? __mutex_lock+0x1db/0x2010 [ 21.447863][ T375] ? __mutex_lock+0x9b2/0x2010 [ 21.447864][ T375] ? rtnl_newlink+0x883/0xef0 [ 21.447866][ T375] ? ww_mutex_lock+0x160/0x160 [ 21.447867][ T375] ? nla_get_range_signed+0x3d0/0x3d0 [ 21.447870][ T375] ? __rtnl_newlink+0x3fa/0xa50 [ 21.447872][ T375] rtnl_newlink+0x8d1/0xef0 [ 21.447874][ T375] ? lock_acquire.part.0+0xbc/0x260 [ 21.447875][ T375] ? find_held_lock+0x2b/0x80 [ 21.447877][ T375] ? __rtnl_newlink+0xa50/0xa50 [ 21.447878][ T375] ? mark_usage+0x61/0x170 [ 21.447880][ T375] ? __lock_release.isra.0+0x6b/0x1a0 [ 21.447882][ T375] ? lock_acquire.part.0+0xbc/0x260 [ 21.447883][ T375] ? find_held_lock+0x2b/0x80 [ 21.447885][ T375] ? __rtnl_newlink+0xa50/0xa50 [ 21.447886][ T375] ? __lock_release.isra.0+0x6b/0x1a0 [ 21.447888][ T375] ? __rtnl_newlink+0xa50/0xa50 [ 21.447889][ T375] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 21.447891][ T375] ? validate_chain+0x38b/0xc20 [ 21.447892][ T375] ? rtnl_link_fill+0x920/0x920 [ 21.447894][ T375] ? __lock_acquire+0x508/0xc10 [ 21.447895][ T375] ? lock_acquire.part.0+0xbc/0x260 [ 21.447897][ T375] ? find_held_lock+0x2b/0x80 [ 21.447899][ T375] netlink_rcv_skb+0x14e/0x3a0 [ 21.447900][ T375] ? rtnl_link_fill+0x920/0x920 [ 21.447902][ T375] ? netlink_ack+0xcf0/0xcf0 [ 21.447904][ T375] ? netlink_deliver_tap+0xc5/0x330 [ 21.447906][ T375] ? netlink_deliver_tap+0x13c/0x330 [ 21.447908][ T375] netlink_unicast+0x486/0x750 [ 21.447910][ T375] ? netlink_attachskb+0x810/0x810 [ 21.447912][ T375] ? __lock_acquire+0x508/0xc10 [ 21.447914][ T375] netlink_sendmsg+0x735/0xc60 [ 21.447916][ T375] ? netlink_unicast+0x750/0x750 [ 21.447918][ T375] ? __might_fault+0x97/0x140 [ 21.447921][ T375] ____sys_sendmsg+0x419/0x850 [ 21.447923][ T375] ? copy_msghdr_from_user+0x2a0/0x460 [ 21.447924][ T375] ? get_timestamp.constprop.0+0x390/0x390 [ 21.447926][ T375] ? move_addr_to_kernel+0x40/0x40 [ 21.447928][ T375] ? stack_depot_save_flags+0x367/0x770 [ 21.447929][ T375] ? validate_chain+0x38b/0xc20 [ 21.447931][ T375] ___sys_sendmsg+0x14e/0x1d0 [ 21.447933][ T375] ? __call_rcu_common.constprop.0+0xb2/0xa10 [ 21.447935][ T375] ? copy_msghdr_from_user+0x460/0x460 [ 21.447940][ T375] __sys_sendmsg+0x145/0x1f0 [ 21.447942][ T375] ? __sys_sendmsg_sock+0x20/0x20 [ 21.447943][ T375] ? __call_rcu_common.constprop.0+0x3d1/0xa10 [ 21.447945][ T375] ? do_raw_spin_unlock+0x59/0x250 [ 21.447946][ T375] ? rcu_is_watching+0x15/0xd0 [ 21.447948][ T375] do_syscall_64+0x117/0x590 [ 21.447949][ T375] ? trace_hardirqs_off+0xd/0x30 [ 21.447952][ T375] ? exc_page_fault+0xee/0x100 [ 21.447955][ T375] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 21.447956][ T375] RIP: 0033:0x7f8407a1c08e [ 21.447960][ T375] 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 [ 21.447962][ T375] RSP: 002b:00007fff1b1d85c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 21.447965][ T375] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f8407a1c08e [ 21.447966][ T375] RDX: 0000000000000000 RSI: 00007fff1b1d8670 RDI: 0000000000000005 [ 21.447967][ T375] RBP: 00007fff1b1d85d0 R08: 0000000000000000 R09: 0000000000000000 [ 21.447968][ T375] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a19866d [ 21.447969][ T375] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff1b1d8d30 [ 21.447971][ T375] [ 21.464012][ T375] ip (375) used greatest stack depth: 23328 bytes left