[ 28.884481][ T296] 8021q: 802.1Q VLAN Support v1.8 [ 29.941012][ T308] gre: GRE over IPv4 demultiplexor driver [ 29.957091][ T308] ip_gre: GRE over IPv4 tunneling driver [ 36.737954][ T374] GACT probability NOT on [ 38.426214][ T390] [ 38.426336][ T390] ===================================================== [ 38.426522][ T390] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 38.426731][ T390] 6.9.0-rc1-virtme #1 Not tainted [ 38.426876][ T390] ----------------------------------------------------- [ 38.427052][ T390] sysctl/390 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 38.427253][ T390] ffff8880063fac28 (&p->alloc_lock){+.+.}-{2:2}, at: __get_task_comm+0x27/0x70 [ 38.427517][ T390] [ 38.427517][ T390] and this task is already holding: [ 38.427724][ T390] ffff888005373d80 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 38.427975][ T390] which would create a new lock dependency: [ 38.428148][ T390] (&ndev->lock){++--}-{2:2} -> (&p->alloc_lock){+.+.}-{2:2} [ 38.428358][ T390] [ 38.428358][ T390] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 38.428607][ T390] (&ndev->lock){++--}-{2:2} [ 38.428611][ T390] [ 38.428611][ T390] ... which became SOFTIRQ-irq-safe at: [ 38.428952][ T390] __lock_acquire+0x797/0x1570 [ 38.429099][ T390] lock_acquire.part.0+0xeb/0x330 [ 38.429238][ T390] _raw_write_lock+0x30/0x40 [ 38.429381][ T390] addrconf_rs_timer+0xa9/0x730 [ 38.429518][ T390] call_timer_fn+0x13b/0x230 [ 38.429664][ T390] __run_timers+0x545/0x810 [ 38.429804][ T390] run_timer_softirq+0xe8/0x1b0 [ 38.429944][ T390] __do_softirq+0x1f8/0x5df [ 38.430079][ T390] irq_exit_rcu+0x97/0xc0 [ 38.430218][ T390] sysvec_apic_timer_interrupt+0x75/0x80 [ 38.430355][ T390] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 38.430530][ T390] _raw_spin_unlock_irqrestore+0x43/0x70 [ 38.430669][ T390] get_partial_node.part.0+0x1c5/0x3a0 [ 38.430825][ T390] ___slab_alloc+0xb70/0x10a0 [ 38.430966][ T390] __kmalloc+0x34c/0x3c0 [ 38.431071][ T390] p9_fcall_init+0x7d/0x1b0 [ 38.431210][ T390] p9_tag_alloc+0x138/0x700 [ 38.431348][ T390] p9_client_prepare_req+0xe6/0x290 [ 38.431496][ T390] p9_client_rpc+0x18d/0x930 [ 38.431642][ T390] p9_client_read_once+0x1f1/0x860 [ 38.431789][ T390] p9_client_read+0xfd/0x160 [ 38.431931][ T390] v9fs_issue_read+0x104/0x1b0 [ 38.432085][ T390] netfs_rreq_submit_slice+0x3da/0x5f0 [ 38.432232][ T390] netfs_begin_read+0x450/0xb20 [ 38.432383][ T390] netfs_unbuffered_read_iter_locked+0x5c4/0x810 [ 38.432570][ T390] netfs_unbuffered_read_iter+0xaa/0xf0 [ 38.432719][ T390] do_iter_readv_writev+0x42f/0x620 [ 38.432869][ T390] vfs_iter_read+0x122/0x450 [ 38.433021][ T390] backing_file_read_iter+0x4bc/0x6a0 [ 38.433171][ T390] ovl_read_iter+0x1ff/0x270 [ 38.433321][ T390] __kernel_read+0x336/0x9e0 [ 38.433470][ T390] load_elf_phdrs+0x11c/0x1a0 [ 38.433620][ T390] load_elf_binary+0x1876/0x2840 [ 38.433772][ T390] search_binary_handler+0x152/0x550 [ 38.433918][ T390] exec_binprm+0x120/0x400 [ 38.434068][ T390] bprm_execve+0xe9/0x4f0 [ 38.434218][ T390] do_execveat_common.isra.0+0x4a6/0x6a0 [ 38.434385][ T390] __x64_sys_execve+0x8c/0xb0 [ 38.434547][ T390] do_syscall_64+0xc6/0x1e0 [ 38.434703][ T390] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 38.434888][ T390] [ 38.434888][ T390] to a SOFTIRQ-irq-unsafe lock: [ 38.435073][ T390] (&p->alloc_lock){+.+.}-{2:2} [ 38.435077][ T390] [ 38.435077][ T390] ... which became SOFTIRQ-irq-unsafe at: [ 38.435437][ T390] ... [ 38.435439][ T390] __lock_acquire+0x797/0x1570 [ 38.435666][ T390] lock_acquire.part.0+0xeb/0x330 [ 38.435819][ T390] _raw_spin_lock+0x30/0x40 [ 38.435970][ T390] set_mems_allowed+0x1d/0x210 [ 38.436121][ T390] kernel_init_freeable+0x72/0x310 [ 38.436273][ T390] kernel_init+0x20/0x200 [ 38.436427][ T390] ret_from_fork+0x31/0x70 [ 38.436584][ T390] ret_from_fork_asm+0x1a/0x30 [ 38.436731][ T390] [ 38.436731][ T390] other info that might help us debug this: [ 38.436731][ T390] [ 38.437025][ T390] Possible interrupt unsafe locking scenario: [ 38.437025][ T390] [ 38.437242][ T390] CPU0 CPU1 [ 38.437389][ T390] ---- ---- [ 38.437540][ T390] lock(&p->alloc_lock); [ 38.437658][ T390] local_irq_disable(); [ 38.437831][ T390] lock(&ndev->lock); [ 38.438037][ T390] lock(&p->alloc_lock); [ 38.438284][ T390] [ 38.438447][ T390] lock(&ndev->lock); [ 38.438620][ T390] [ 38.438620][ T390] *** DEADLOCK *** [ 38.438620][ T390] [ 38.438938][ T390] 3 locks held by sysctl/390: [ 38.439167][ T390] #0: ffff88802a4113f0 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0xf5/0x1e0 [ 38.439587][ T390] #1: ffffffffa3f969c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_fixup_forwarding+0x20/0x460 [ 38.440035][ T390] #2: ffff888005373d80 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 38.440431][ T390] [ 38.440431][ T390] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 38.440880][ T390] -> (&ndev->lock){++--}-{2:2} { [ 38.441128][ T390] HARDIRQ-ON-W at: [ 38.441303][ T390] __lock_acquire+0x797/0x1570 [ 38.441590][ T390] lock_acquire.part.0+0xeb/0x330 [ 38.441876][ T390] _raw_write_lock_bh+0x38/0x50 [ 38.442164][ T390] addrconf_permanent_addr+0x6e/0x670 [ 38.442446][ T390] addrconf_notify+0x749/0xd60 [ 38.442728][ T390] notifier_call_chain+0xcd/0x150 [ 38.443013][ T390] __dev_notify_flags+0xe6/0x250 [ 38.443297][ T390] dev_change_flags+0xec/0x160 [ 38.443570][ T390] do_setlink+0x7d6/0x21e0 [ 38.443857][ T390] __rtnl_newlink+0xaa7/0xd80 [ 38.444138][ T390] rtnl_newlink+0x63/0xa0 [ 38.444427][ T390] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 38.444711][ T390] netlink_rcv_skb+0x130/0x360 [ 38.444993][ T390] netlink_unicast+0x449/0x710 [ 38.445263][ T390] netlink_sendmsg+0x723/0xbe0 [ 38.445536][ T390] ____sys_sendmsg+0x7b2/0xa10 [ 38.445813][ T390] ___sys_sendmsg+0xee/0x170 [ 38.446092][ T390] __sys_sendmsg+0xcd/0x170 [ 38.446374][ T390] do_syscall_64+0xc6/0x1e0 [ 38.446665][ T390] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 38.447019][ T390] HARDIRQ-ON-R at: [ 38.447213][ T390] __lock_acquire+0x797/0x1570 [ 38.447504][ T390] lock_acquire.part.0+0xeb/0x330 [ 38.447795][ T390] _raw_read_lock_bh+0x44/0x80 [ 38.448096][ T390] inet6_fill_ifla6_attrs+0x516/0x740 [ 38.448389][ T390] inet6_fill_link_af+0x5e/0xe0 [ 38.448668][ T390] rtnl_fill_ifinfo+0x1612/0x29e0 [ 38.448943][ T390] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 38.449135][ T390] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 38.449369][ T390] rtmsg_ifinfo+0x5b/0xa0 [ 38.449565][ T390] register_netdevice+0x1177/0x1690 [ 38.449758][ T390] register_netdev+0x20/0x40 [ 38.449947][ T390] sit_init_net+0x250/0x4f0 [ 38.450142][ T390] ops_init+0x9b/0x560 [ 38.450297][ T390] register_pernet_operations+0x2db/0x710 [ 38.450530][ T390] register_pernet_device+0x2a/0x60 [ 38.450723][ T390] sit_init+0x23/0xe0 [ 38.450881][ T390] do_one_initcall+0x8d/0x1e0 [ 38.451074][ T390] do_initcalls+0x1b2/0x3e0 [ 38.451266][ T390] kernel_init_freeable+0x232/0x310 [ 38.451465][ T390] kernel_init+0x20/0x200 [ 38.451657][ T390] ret_from_fork+0x31/0x70 [ 38.451849][ T390] ret_from_fork_asm+0x1a/0x30 [ 38.452034][ T390] IN-SOFTIRQ-W at: [ 38.452148][ T390] __lock_acquire+0x797/0x1570 [ 38.452337][ T390] lock_acquire.part.0+0xeb/0x330 [ 38.452529][ T390] _raw_write_lock+0x30/0x40 [ 38.452724][ T390] addrconf_rs_timer+0xa9/0x730 [ 38.452914][ T390] call_timer_fn+0x13b/0x230 [ 38.453104][ T390] __run_timers+0x545/0x810 [ 38.453289][ T390] run_timer_softirq+0xe8/0x1b0 [ 38.453484][ T390] __do_softirq+0x1f8/0x5df [ 38.453669][ T390] irq_exit_rcu+0x97/0xc0 [ 38.453859][ T390] sysvec_apic_timer_interrupt+0x75/0x80 [ 38.454084][ T390] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 38.454323][ T390] _raw_spin_unlock_irqrestore+0x43/0x70 [ 38.454559][ T390] get_partial_node.part.0+0x1c5/0x3a0 [ 38.454750][ T390] ___slab_alloc+0xb70/0x10a0 [ 38.454936][ T390] __kmalloc+0x34c/0x3c0 [ 38.455128][ T390] p9_fcall_init+0x7d/0x1b0 [ 38.455314][ T390] p9_tag_alloc+0x138/0x700 [ 38.455513][ T390] p9_client_prepare_req+0xe6/0x290 [ 38.455702][ T390] p9_client_rpc+0x18d/0x930 [ 38.455891][ T390] p9_client_read_once+0x1f1/0x860 [ 38.456081][ T390] p9_client_read+0xfd/0x160 [ 38.456268][ T390] v9fs_issue_read+0x104/0x1b0 [ 38.456472][ T390] netfs_rreq_submit_slice+0x3da/0x5f0 [ 38.456660][ T390] netfs_begin_read+0x450/0xb20 [ 38.456852][ T390] netfs_unbuffered_read_iter_locked+0x5c4/0x810 [ 38.457077][ T390] netfs_unbuffered_read_iter+0xaa/0xf0 [ 38.457301][ T390] do_iter_readv_writev+0x42f/0x620 [ 38.457505][ T390] vfs_iter_read+0x122/0x450 [ 38.457694][ T390] backing_file_read_iter+0x4bc/0x6a0 [ 38.457886][ T390] ovl_read_iter+0x1ff/0x270 [ 38.458075][ T390] __kernel_read+0x336/0x9e0 [ 38.458261][ T390] load_elf_phdrs+0x11c/0x1a0 [ 38.458456][ T390] load_elf_binary+0x1876/0x2840 [ 38.458647][ T390] search_binary_handler+0x152/0x550 [ 38.458841][ T390] exec_binprm+0x120/0x400 [ 38.459029][ T390] bprm_execve+0xe9/0x4f0 [ 38.459217][ T390] do_execveat_common.isra.0+0x4a6/0x6a0 [ 38.459446][ T390] __x64_sys_execve+0x8c/0xb0 [ 38.459632][ T390] do_syscall_64+0xc6/0x1e0 [ 38.459821][ T390] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 38.460140][ T390] IN-SOFTIRQ-R at: [ 38.460256][ T390] __lock_acquire+0x797/0x1570 [ 38.460448][ T390] lock_acquire.part.0+0xeb/0x330 [ 38.460639][ T390] _raw_read_lock_bh+0x44/0x80 [ 38.460909][ T390] ipv6_get_lladdr+0xa9/0x3e0 [ 38.461097][ T390] addrconf_rs_timer+0x24a/0x730 [ 38.461285][ T390] call_timer_fn+0x13b/0x230 [ 38.461569][ T390] __run_timers+0x545/0x810 [ 38.461757][ T390] run_timer_softirq+0xe8/0x1b0 [ 38.461945][ T390] __do_softirq+0x1f8/0x5df [ 38.462133][ T390] irq_exit_rcu+0x97/0xc0 [ 38.462410][ T390] sysvec_apic_timer_interrupt+0x75/0x80 [ 38.462633][ T390] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 38.462861][ T390] _raw_spin_unlock_irqrestore+0x43/0x70 [ 38.463164][ T390] get_partial_node.part.0+0x1c5/0x3a0 [ 38.463357][ T390] ___slab_alloc+0xb70/0x10a0 [ 38.463568][ T390] __kmalloc+0x34c/0x3c0 [ 38.463843][ T390] p9_fcall_init+0x7d/0x1b0 [ 38.464030][ T390] p9_tag_alloc+0x138/0x700 [ 38.464220][ T390] p9_client_prepare_req+0xe6/0x290 [ 38.464509][ T390] p9_client_rpc+0x18d/0x930 [ 38.464695][ T390] p9_client_read_once+0x1f1/0x860 [ 38.464884][ T390] p9_client_read+0xfd/0x160 [ 38.465069][ T390] v9fs_issue_read+0x104/0x1b0 [ 38.465340][ T390] netfs_rreq_submit_slice+0x3da/0x5f0 [ 38.465538][ T390] netfs_begin_read+0x450/0xb20 [ 38.465732][ T390] netfs_unbuffered_read_iter_locked+0x5c4/0x810 [ 38.466043][ T390] netfs_unbuffered_read_iter+0xaa/0xf0 [ 38.466267][ T390] do_iter_readv_writev+0x42f/0x620 [ 38.466466][ T390] vfs_iter_read+0x122/0x450 [ 38.466734][ T390] backing_file_read_iter+0x4bc/0x6a0 [ 38.466928][ T390] ovl_read_iter+0x1ff/0x270 [ 38.467117][ T390] __kernel_read+0x336/0x9e0 [ 38.467399][ T390] load_elf_phdrs+0x11c/0x1a0 [ 38.467588][ T390] load_elf_binary+0x1876/0x2840 [ 38.467776][ T390] search_binary_handler+0x152/0x550 [ 38.467965][ T390] exec_binprm+0x120/0x400 [ 38.468233][ T390] bprm_execve+0xe9/0x4f0 [ 38.468430][ T390] do_execveat_common.isra.0+0x4a6/0x6a0 [ 38.468651][ T390] __x64_sys_execve+0x8c/0xb0 [ 38.468920][ T390] do_syscall_64+0xc6/0x1e0 [ 38.469110][ T390] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 38.469334][ T390] INITIAL USE at: [ 38.469450][ T390] __lock_acquire+0x797/0x1570 [ 38.469735][ T390] lock_acquire.part.0+0xeb/0x330 [ 38.469921][ T390] _raw_write_lock_bh+0x38/0x50 [ 38.470110][ T390] addrconf_permanent_addr+0x6e/0x670 [ 38.470296][ T390] addrconf_notify+0x749/0xd60 [ 38.470484][ T390] notifier_call_chain+0xcd/0x150 [ 38.470674][ T390] __dev_notify_flags+0xe6/0x250 [ 38.470953][ T390] dev_change_flags+0xec/0x160 [ 38.471145][ T390] do_setlink+0x7d6/0x21e0 [ 38.471332][ T390] __rtnl_newlink+0xaa7/0xd80 [ 38.471525][ T390] rtnl_newlink+0x63/0xa0 [ 38.471797][ T390] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 38.471986][ T390] netlink_rcv_skb+0x130/0x360 [ 38.472174][ T390] netlink_unicast+0x449/0x710 [ 38.472458][ T390] netlink_sendmsg+0x723/0xbe0 [ 38.472645][ T390] ____sys_sendmsg+0x7b2/0xa10 [ 38.472834][ T390] ___sys_sendmsg+0xee/0x170 [ 38.473021][ T390] __sys_sendmsg+0xcd/0x170 [ 38.473289][ T390] do_syscall_64+0xc6/0x1e0 [ 38.473484][ T390] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 38.473710][ T390] INITIAL READ USE at: [ 38.473992][ T390] __lock_acquire+0x797/0x1570 [ 38.474181][ T390] lock_acquire.part.0+0xeb/0x330 [ 38.474391][ T390] _raw_read_lock_bh+0x44/0x80 [ 38.474582][ T390] inet6_fill_ifla6_attrs+0x516/0x740 [ 38.474895][ T390] inet6_fill_link_af+0x5e/0xe0 [ 38.475081][ T390] rtnl_fill_ifinfo+0x1612/0x29e0 [ 38.475272][ T390] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 38.475584][ T390] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 38.475806][ T390] rtmsg_ifinfo+0x5b/0xa0 [ 38.475990][ T390] register_netdevice+0x1177/0x1690 [ 38.476295][ T390] register_netdev+0x20/0x40 [ 38.476486][ T390] sit_init_net+0x250/0x4f0 [ 38.476673][ T390] ops_init+0x9b/0x560 [ 38.476944][ T390] register_pernet_operations+0x2db/0x710 [ 38.477168][ T390] register_pernet_device+0x2a/0x60 [ 38.477397][ T390] sit_init+0x23/0xe0 [ 38.477674][ T390] do_one_initcall+0x8d/0x1e0 [ 38.477864][ T390] do_initcalls+0x1b2/0x3e0 [ 38.478054][ T390] kernel_init_freeable+0x232/0x310 [ 38.478274][ T390] kernel_init+0x20/0x200 [ 38.478467][ T390] ret_from_fork+0x31/0x70 [ 38.478654][ T390] ret_from_fork_asm+0x1a/0x30 [ 38.478840][ T390] } [ 38.478998][ T390] ... key at: [] __key.37+0x0/0x40 [ 38.479223][ T390] [ 38.479223][ T390] the dependencies between the lock to be acquired [ 38.479225][ T390] and SOFTIRQ-irq-unsafe lock: [ 38.479703][ T390] -> (&p->alloc_lock){+.+.}-{2:2} { [ 38.479859][ T390] HARDIRQ-ON-W at: [ 38.479974][ T390] __lock_acquire+0x797/0x1570 [ 38.480164][ T390] lock_acquire.part.0+0xeb/0x330 [ 38.480442][ T390] _raw_spin_lock+0x30/0x40 [ 38.480642][ T390] set_mems_allowed+0x1d/0x210 [ 38.480832][ T390] kernel_init_freeable+0x72/0x310 [ 38.481018][ T390] kernel_init+0x20/0x200 [ 38.481286][ T390] ret_from_fork+0x31/0x70 [ 38.481483][ T390] ret_from_fork_asm+0x1a/0x30 [ 38.481671][ T390] SOFTIRQ-ON-W at: [ 38.481866][ T390] __lock_acquire+0x797/0x1570 [ 38.482059][ T390] lock_acquire.part.0+0xeb/0x330 [ 38.482251][ T390] _raw_spin_lock+0x30/0x40 [ 38.482441][ T390] set_mems_allowed+0x1d/0x210 [ 38.482729][ T390] kernel_init_freeable+0x72/0x310 [ 38.482920][ T390] kernel_init+0x20/0x200 [ 38.483114][ T390] ret_from_fork+0x31/0x70 [ 38.483304][ T390] ret_from_fork_asm+0x1a/0x30 [ 38.483498][ T390] INITIAL USE at: [ 38.483616][ T390] __lock_acquire+0x797/0x1570 [ 38.483804][ T390] lock_acquire.part.0+0xeb/0x330 [ 38.484074][ T390] _raw_spin_lock+0x30/0x40 [ 38.484274][ T390] set_mems_allowed+0x1d/0x210 [ 38.484469][ T390] kernel_init_freeable+0x72/0x310 [ 38.484744][ T390] kernel_init+0x20/0x200 [ 38.484933][ T390] ret_from_fork+0x31/0x70 [ 38.485120][ T390] ret_from_fork_asm+0x1a/0x30 [ 38.485308][ T390] } [ 38.485561][ T390] ... key at: [] __key.387+0x0/0x40 [ 38.485790][ T390] ... acquired at: [ 38.485907][ T390] check_prev_add+0x194/0xce0 [ 38.486060][ T390] validate_chain+0x71d/0x9b0 [ 38.486214][ T390] __lock_acquire+0xaf0/0x1570 [ 38.486370][ T390] lock_acquire.part.0+0xeb/0x330 [ 38.486522][ T390] _raw_spin_lock+0x30/0x40 [ 38.486671][ T390] __get_task_comm+0x27/0x70 [ 38.486824][ T390] ref_tracker_alloc+0x2ee/0x490 [ 38.487060][ T390] netdev_get_by_index+0x5e/0x80 [ 38.487210][ T390] fib6_nh_init+0x3d8/0x15b0 [ 38.487366][ T390] ip6_route_info_create+0xf18/0x17d0 [ 38.487527][ T390] addrconf_f6i_alloc+0x265/0x560 [ 38.487756][ T390] __ipv6_dev_ac_inc+0x25f/0xb10 [ 38.487907][ T390] addrconf_join_anycast+0x1c0/0x220 [ 38.488056][ T390] dev_forward_change+0x2a6/0x7b0 [ 38.488205][ T390] addrconf_fixup_forwarding+0x23f/0x460 [ 38.488474][ T390] addrconf_sysctl_forward+0x212/0x2b0 [ 38.488625][ T390] proc_sys_call_handler+0x403/0x5e0 [ 38.488801][ T390] vfs_write+0x9e5/0x10a0 [ 38.488952][ T390] ksys_write+0xf5/0x1e0 [ 38.489182][ T390] do_syscall_64+0xc6/0x1e0 [ 38.489330][ T390] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 38.489514][ T390] [ 38.489591][ T390] [ 38.489591][ T390] stack backtrace: [ 38.489852][ T390] CPU: 3 PID: 390 Comm: sysctl Not tainted 6.9.0-rc1-virtme #1 [ 38.490080][ T390] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 38.490415][ T390] Call Trace: [ 38.490620][ T390] [ 38.490700][ T390] dump_stack_lvl+0x82/0xd0 [ 38.490856][ T390] print_bad_irq_dependency+0x957/0xd40 [ 38.491007][ T390] ? hlock_class+0x4e/0x130 [ 38.491158][ T390] ? __pfx_print_bad_irq_dependency+0x10/0x10 [ 38.491343][ T390] ? __pfx_usage_skip+0x10/0x10 [ 38.491490][ T390] ? __bfs+0x246/0x650 [ 38.491608][ T390] ? __pfx_usage_match+0x10/0x10 [ 38.491761][ T390] check_irq_usage+0x596/0x850 [ 38.491996][ T390] ? __pfx_check_irq_usage+0x10/0x10 [ 38.492145][ T390] ? __bfs+0x246/0x650 [ 38.492256][ T390] ? __pfx_hlock_conflict+0x10/0x10 [ 38.492406][ T390] ? check_path.constprop.0+0x24/0x50 [ 38.492557][ T390] ? check_noncircular+0x14c/0x3e0 [ 38.492787][ T390] ? __pfx_check_noncircular+0x10/0x10 [ 38.492946][ T390] ? check_prev_add+0x194/0xce0 [ 38.493094][ T390] check_prev_add+0x194/0xce0 [ 38.493244][ T390] ? validate_chain+0x130/0x9b0 [ 38.493476][ T390] validate_chain+0x71d/0x9b0 [ 38.493627][ T390] ? mark_lock+0x38/0x3e0 [ 38.493739][ T390] ? __pfx_validate_chain+0x10/0x10 [ 38.493889][ T390] ? hlock_class+0x4e/0x130 [ 38.494116][ T390] ? mark_lock+0x38/0x3e0 [ 38.494247][ T390] __lock_acquire+0xaf0/0x1570 [ 38.494403][ T390] lock_acquire.part.0+0xeb/0x330 [ 38.494553][ T390] ? __get_task_comm+0x27/0x70 [ 38.494702][ T390] ? mark_lock+0x38/0x3e0 [ 38.494898][ T390] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 38.495048][ T390] ? trace_lock_acquire+0x135/0x1c0 [ 38.495199][ T390] ? __get_task_comm+0x27/0x70 [ 38.495345][ T390] ? lock_acquire+0x32/0xc0 [ 38.495582][ T390] ? __get_task_comm+0x27/0x70 [ 38.495737][ T390] _raw_spin_lock+0x30/0x40 [ 38.495886][ T390] ? __get_task_comm+0x27/0x70 [ 38.496032][ T390] __get_task_comm+0x27/0x70 [ 38.496181][ T390] ref_tracker_alloc+0x2ee/0x490 [ 38.496334][ T390] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 38.496485][ T390] ? dev_get_by_index+0x177/0x270 [ 38.496633][ T390] ? netdev_get_by_index+0x5e/0x80 [ 38.496782][ T390] ? fib6_nh_init+0x3d8/0x15b0 [ 38.497093][ T390] ? ip6_route_info_create+0xf18/0x17d0 [ 38.497248][ T390] ? addrconf_f6i_alloc+0x265/0x560 [ 38.497396][ T390] ? __ipv6_dev_ac_inc+0x25f/0xb10 [ 38.497550][ T390] ? addrconf_join_anycast+0x1c0/0x220 [ 38.497779][ T390] ? dev_forward_change+0x2a6/0x7b0 [ 38.497929][ T390] ? addrconf_fixup_forwarding+0x23f/0x460 [ 38.498115][ T390] ? addrconf_sysctl_forward+0x212/0x2b0 [ 38.498265][ T390] ? proc_sys_call_handler+0x403/0x5e0 [ 38.498500][ T390] ? vfs_write+0x9e5/0x10a0 [ 38.498651][ T390] ? ksys_write+0xf5/0x1e0 [ 38.498799][ T390] ? do_syscall_64+0xc6/0x1e0 [ 38.498947][ T390] ? entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 38.499215][ T390] ? dev_get_by_index+0x177/0x270 [ 38.499368][ T390] netdev_get_by_index+0x5e/0x80 [ 38.499520][ T390] fib6_nh_init+0x3d8/0x15b0 [ 38.499670][ T390] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 38.499943][ T390] ? __pfx_fib6_nh_init+0x10/0x10 [ 38.500095][ T390] ? kasan_save_track+0x14/0x30 [ 38.500249][ T390] ? __kasan_kmalloc+0x7f/0x90 [ 38.500398][ T390] ? __kmalloc+0x1d7/0x3c0 [ 38.500631][ T390] ? fib6_get_table+0x116/0x290 [ 38.500780][ T390] ip6_route_info_create+0xf18/0x17d0 [ 38.500928][ T390] ? __lock_release+0x103/0x460 [ 38.501077][ T390] ? __pfx_ip6_route_info_create+0x10/0x10 [ 38.501265][ T390] ? addrconf_f6i_alloc+0x12d/0x560 [ 38.501412][ T390] addrconf_f6i_alloc+0x265/0x560 [ 38.501560][ T390] ? __pfx_addrconf_f6i_alloc+0x10/0x10 [ 38.501713][ T390] ? do_raw_write_lock+0x122/0x3b0 [ 38.501862][ T390] ? __pfx_do_raw_write_lock+0x10/0x10 [ 38.502091][ T390] ? lock_acquire+0x32/0xc0 [ 38.502243][ T390] __ipv6_dev_ac_inc+0x25f/0xb10 [ 38.502395][ T390] addrconf_join_anycast+0x1c0/0x220 [ 38.502549][ T390] ? mark_lock+0x38/0x3e0 [ 38.502744][ T390] ? __pfx_addrconf_join_anycast+0x10/0x10 [ 38.502926][ T390] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 38.503112][ T390] dev_forward_change+0x2a6/0x7b0 [ 38.503263][ T390] ? __pfx_dev_forward_change+0x10/0x10 [ 38.503495][ T390] addrconf_fixup_forwarding+0x23f/0x460 [ 38.503645][ T390] addrconf_sysctl_forward+0x212/0x2b0 [ 38.503798][ T390] ? __pfx_addrconf_sysctl_forward+0x10/0x10 [ 38.503985][ T390] ? __pfx_addrconf_sysctl_forward+0x10/0x10 [ 38.504259][ T390] ? trace_kmalloc+0x2a/0xe0 [ 38.504406][ T390] ? __kmalloc_node+0x220/0x400 [ 38.504554][ T390] ? proc_sys_call_handler+0x30b/0x5e0 [ 38.504704][ T390] proc_sys_call_handler+0x403/0x5e0 [ 38.504933][ T390] ? __pfx_proc_sys_call_handler+0x10/0x10 [ 38.505116][ T390] ? __lock_acquire+0xaf0/0x1570 [ 38.505276][ T390] vfs_write+0x9e5/0x10a0 [ 38.505389][ T390] ? do_user_addr_fault+0x449/0xbe0 [ 38.505629][ T390] ? __pfx_vfs_write+0x10/0x10 [ 38.505856][ T390] ? find_held_lock+0x2c/0x110 [ 38.506003][ T390] ? __pfx___lock_release+0x10/0x10 [ 38.506141][ T390] ? __fget_light+0x53/0x1e0 [ 38.506282][ T390] ksys_write+0xf5/0x1e0 [ 38.506390][ T390] ? __pfx_ksys_write+0x10/0x10 [ 38.506530][ T390] ? do_user_addr_fault+0x4bd/0xbe0 [ 38.506677][ T390] do_syscall_64+0xc6/0x1e0 [ 38.506814][ T390] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 38.507009][ T390] RIP: 0033:0x7f986a365957 [ 38.507171][ T390] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 [ 38.507789][ T390] RSP: 002b:00007fffd492c9d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 38.508005][ T390] RAX: ffffffffffffffda RBX: 000055ba98455360 RCX: 00007f986a365957 [ 38.508211][ T390] RDX: 0000000000000002 RSI: 000055ba984553a0 RDI: 0000000000000005 [ 38.508594][ T390] RBP: 000055ba984574d0 R08: 0000000000000003 R09: 0000000000000077 [ 38.508807][ T390] R10: 000000000000006b R11: 0000000000000246 R12: 0000000000000002 [ 38.509103][ T390] R13: 0000000000000002 R14: 0000000000000002 R15: 00007f986a41c9c0 [ 38.509315][ T390]