[ 25.472007][ T236] ip (236) used greatest stack depth: 24144 bytes left [ 26.693572][ T245] ip (245) used greatest stack depth: 23968 bytes left [ 26.838499][ T246] ip (246) used greatest stack depth: 23776 bytes left [ 26.982548][ T247] ip (247) used greatest stack depth: 22976 bytes left [ 33.895610][ T296] Initializing XFRM netlink socket [ 34.158714][ C2] [ 34.158834][ C2] ======================================================== [ 34.159070][ C2] WARNING: possible irq lock inversion dependency detected [ 34.159279][ C2] 6.9.0-rc1-virtme #1 Not tainted [ 34.159421][ C2] -------------------------------------------------------- [ 34.159638][ C2] swapper/2/0 just changed the state of lock: [ 34.159811][ C2] ffff888005baa580 (&ndev->lock){++-.}-{2:2}, at: addrconf_rs_timer+0xa9/0x730 [ 34.160071][ C2] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 34.160298][ C2] (&p->alloc_lock){+.+.}-{2:2} [ 34.160303][ C2] [ 34.160303][ C2] [ 34.160303][ C2] and interrupts could create inverse lock ordering between them. [ 34.160303][ C2] [ 34.160812][ C2] [ 34.160812][ C2] other info that might help us debug this: [ 34.161023][ C2] Possible interrupt unsafe locking scenario: [ 34.161023][ C2] [ 34.161234][ C2] CPU0 CPU1 [ 34.161376][ C2] ---- ---- [ 34.161524][ C2] lock(&p->alloc_lock); [ 34.161630][ C2] local_irq_disable(); [ 34.161807][ C2] lock(&ndev->lock); [ 34.161979][ C2] lock(&p->alloc_lock); [ 34.162155][ C2] [ 34.162264][ C2] lock(&ndev->lock); [ 34.162373][ C2] [ 34.162373][ C2] *** DEADLOCK *** [ 34.162373][ C2] [ 34.162579][ C2] 1 lock held by swapper/2/0: [ 34.162720][ C2] #0: ffffc90000230b68 ((&ndev->rs_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 34.162972][ C2] [ 34.162972][ C2] the shortest dependencies between 2nd lock and 1st lock: [ 34.163219][ C2] -> (&p->alloc_lock){+.+.}-{2:2} { [ 34.163367][ C2] HARDIRQ-ON-W at: [ 34.163473][ C2] __lock_acquire+0x797/0x1570 [ 34.163651][ C2] lock_acquire.part.0+0xeb/0x330 [ 34.163826][ C2] _raw_spin_lock+0x30/0x40 [ 34.164001][ C2] set_mems_allowed+0x1d/0x210 [ 34.164176][ C2] kernel_init_freeable+0x72/0x310 [ 34.164368][ C2] kernel_init+0x20/0x200 [ 34.164558][ C2] ret_from_fork+0x31/0x70 [ 34.164732][ C2] ret_from_fork_asm+0x1a/0x30 [ 34.164906][ C2] SOFTIRQ-ON-W at: [ 34.165010][ C2] __lock_acquire+0x797/0x1570 [ 34.165185][ C2] lock_acquire.part.0+0xeb/0x330 [ 34.165369][ C2] _raw_spin_lock+0x30/0x40 [ 34.165543][ C2] set_mems_allowed+0x1d/0x210 [ 34.165719][ C2] kernel_init_freeable+0x72/0x310 [ 34.165895][ C2] kernel_init+0x20/0x200 [ 34.166070][ C2] ret_from_fork+0x31/0x70 [ 34.166253][ C2] ret_from_fork_asm+0x1a/0x30 [ 34.166441][ C2] INITIAL USE at: [ 34.166549][ C2] __lock_acquire+0x797/0x1570 [ 34.166733][ C2] lock_acquire.part.0+0xeb/0x330 [ 34.166907][ C2] _raw_spin_lock+0x30/0x40 [ 34.167082][ C2] set_mems_allowed+0x1d/0x210 [ 34.167259][ C2] kernel_init_freeable+0x72/0x310 [ 34.167431][ C2] kernel_init+0x20/0x200 [ 34.167613][ C2] ret_from_fork+0x31/0x70 [ 34.167788][ C2] ret_from_fork_asm+0x1a/0x30 [ 34.167962][ C2] } [ 34.168033][ C2] ... key at: [] __key.388+0x0/0x40 [ 34.168266][ C2] ... acquired at: [ 34.168371][ C2] __lock_acquire+0xaf0/0x1570 [ 34.168514][ C2] lock_acquire.part.0+0xeb/0x330 [ 34.168658][ C2] _raw_spin_lock+0x30/0x40 [ 34.168803][ C2] __get_task_comm+0x27/0x70 [ 34.168945][ C2] ref_tracker_alloc+0x2ee/0x490 [ 34.169083][ C2] netdev_get_by_index+0x5e/0x80 [ 34.169218][ C2] fib6_nh_init+0x3d8/0x1580 [ 34.169359][ C2] ip6_route_info_create+0xf18/0x17d0 [ 34.169503][ C2] addrconf_f6i_alloc+0x265/0x560 [ 34.169639][ C2] __ipv6_dev_ac_inc+0x25f/0xb10 [ 34.169783][ C2] addrconf_join_anycast+0x1c0/0x220 [ 34.169925][ C2] dev_forward_change+0x2a6/0x7b0 [ 34.170064][ C2] addrconf_fixup_forwarding+0x152/0x460 [ 34.170237][ C2] addrconf_sysctl_forward+0x212/0x2b0 [ 34.170375][ C2] proc_sys_call_handler+0x403/0x5e0 [ 34.170603][ C2] vfs_write+0x9e5/0x10a0 [ 34.170747][ C2] ksys_write+0xf5/0x1e0 [ 34.170889][ C2] do_syscall_64+0xc6/0x1e0 [ 34.171035][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 34.171290][ C2] [ 34.171360][ C2] -> (&ndev->lock){++-.}-{2:2} { [ 34.171502][ C2] HARDIRQ-ON-W at: [ 34.171612][ C2] __lock_acquire+0x797/0x1570 [ 34.171794][ C2] lock_acquire.part.0+0xeb/0x330 [ 34.172051][ C2] _raw_write_lock_bh+0x38/0x50 [ 34.172228][ C2] addrconf_permanent_addr+0x6e/0x670 [ 34.172412][ C2] addrconf_notify+0x749/0xd60 [ 34.172674][ C2] notifier_call_chain+0xcd/0x150 [ 34.172852][ C2] __dev_notify_flags+0xe6/0x250 [ 34.173025][ C2] dev_change_flags+0xec/0x160 [ 34.173196][ C2] do_setlink+0x7d6/0x21e0 [ 34.173375][ C2] __rtnl_newlink+0xaa7/0xd80 [ 34.173548][ C2] rtnl_newlink+0x63/0xa0 [ 34.173720][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 34.174053][ C2] netlink_rcv_skb+0x130/0x360 [ 34.174227][ C2] netlink_unicast+0x449/0x710 [ 34.174400][ C2] netlink_sendmsg+0x723/0xbe0 [ 34.174574][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 34.174839][ C2] ___sys_sendmsg+0xee/0x170 [ 34.175009][ C2] __sys_sendmsg+0xcd/0x170 [ 34.175180][ C2] do_syscall_64+0xc6/0x1e0 [ 34.175353][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 34.175562][ C2] HARDIRQ-ON-R at: [ 34.175668][ C2] __lock_acquire+0x797/0x1570 [ 34.175841][ C2] lock_acquire.part.0+0xeb/0x330 [ 34.176096][ C2] _raw_read_lock_bh+0x44/0x80 [ 34.176281][ C2] inet6_fill_ifla6_attrs+0x516/0x740 [ 34.176460][ C2] inet6_fill_link_af+0x5e/0xe0 [ 34.176715][ C2] rtnl_fill_ifinfo+0x1615/0x2a90 [ 34.176886][ C2] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 34.177059][ C2] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 34.177273][ C2] rtmsg_ifinfo+0x5b/0xa0 [ 34.177450][ C2] register_netdevice+0x1177/0x1690 [ 34.177625][ C2] register_netdev+0x20/0x40 [ 34.177799][ C2] vti6_init_net+0x25d/0x380 [ 34.178054][ C2] ops_init+0x9b/0x560 [ 34.178194][ C2] register_pernet_operations+0x2db/0x710 [ 34.178406][ C2] register_pernet_device+0x2a/0x60 [ 34.178662][ C2] vti6_tunnel_init+0x18/0x110 [ 34.178838][ C2] do_one_initcall+0x8d/0x1e0 [ 34.179009][ C2] do_initcalls+0x1b2/0x3e0 [ 34.179273][ C2] kernel_init_freeable+0x232/0x310 [ 34.179447][ C2] kernel_init+0x20/0x200 [ 34.179622][ C2] ret_from_fork+0x31/0x70 [ 34.179804][ C2] ret_from_fork_asm+0x1a/0x30 [ 34.180060][ C2] IN-SOFTIRQ-W at: [ 34.180164][ C2] __lock_acquire+0x797/0x1570 [ 34.180352][ C2] lock_acquire.part.0+0xeb/0x330 [ 34.180529][ C2] _raw_write_lock+0x30/0x40 [ 34.180788][ C2] addrconf_rs_timer+0xa9/0x730 [ 34.180965][ C2] call_timer_fn+0x13b/0x230 [ 34.181140][ C2] __run_timers+0x545/0x810 [ 34.181318][ C2] timer_expire_remote+0x9b/0xe0 [ 34.181493][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 34.181666][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 34.181922][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 34.182106][ C2] __do_softirq+0x1f8/0x5df [ 34.182280][ C2] irq_exit_rcu+0x97/0xc0 [ 34.182455][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 34.182751][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 34.182959][ C2] default_idle+0xf/0x20 [ 34.183135][ C2] default_idle_call+0x6d/0xb0 [ 34.183399][ C2] cpuidle_idle_call+0x1f4/0x280 [ 34.183580][ C2] do_idle+0xf9/0x160 [ 34.183723][ C2] cpu_startup_entry+0x54/0x60 [ 34.183984][ C2] start_secondary+0x21c/0x2b0 [ 34.184161][ C2] common_startup_64+0x12c/0x138 [ 34.184348][ C2] INITIAL USE at: [ 34.184454][ C2] __lock_acquire+0x797/0x1570 [ 34.184812][ C2] lock_acquire.part.0+0xeb/0x330 [ 34.184990][ C2] _raw_write_lock_bh+0x38/0x50 [ 34.185164][ C2] addrconf_permanent_addr+0x6e/0x670 [ 34.185341][ C2] addrconf_notify+0x749/0xd60 [ 34.185516][ C2] notifier_call_chain+0xcd/0x150 [ 34.185695][ C2] __dev_notify_flags+0xe6/0x250 [ 34.185871][ C2] dev_change_flags+0xec/0x160 [ 34.186131][ C2] do_setlink+0x7d6/0x21e0 [ 34.186304][ C2] __rtnl_newlink+0xaa7/0xd80 [ 34.186488][ C2] rtnl_newlink+0x63/0xa0 [ 34.186766][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 34.186942][ C2] netlink_rcv_skb+0x130/0x360 [ 34.187119][ C2] netlink_unicast+0x449/0x710 [ 34.187299][ C2] netlink_sendmsg+0x723/0xbe0 [ 34.187475][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 34.187653][ C2] ___sys_sendmsg+0xee/0x170 [ 34.187831][ C2] __sys_sendmsg+0xcd/0x170 [ 34.188088][ C2] do_syscall_64+0xc6/0x1e0 [ 34.188278][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 34.188485][ C2] INITIAL READ USE at: [ 34.188593][ C2] __lock_acquire+0x797/0x1570 [ 34.188860][ C2] lock_acquire.part.0+0xeb/0x330 [ 34.189034][ C2] _raw_read_lock_bh+0x44/0x80 [ 34.189212][ C2] inet6_fill_ifla6_attrs+0x516/0x740 [ 34.189425][ C2] inet6_fill_link_af+0x5e/0xe0 [ 34.189600][ C2] rtnl_fill_ifinfo+0x1615/0x2a90 [ 34.189779][ C2] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 34.190073][ C2] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 34.190287][ C2] rtmsg_ifinfo+0x5b/0xa0 [ 34.190467][ C2] register_netdevice+0x1177/0x1690 [ 34.190771][ C2] register_netdev+0x20/0x40 [ 34.190944][ C2] vti6_init_net+0x25d/0x380 [ 34.191124][ C2] ops_init+0x9b/0x560 [ 34.191299][ C2] register_pernet_operations+0x2db/0x710 [ 34.191507][ C2] register_pernet_device+0x2a/0x60 [ 34.191718][ C2] vti6_tunnel_init+0x18/0x110 [ 34.191896][ C2] do_one_initcall+0x8d/0x1e0 [ 34.192152][ C2] do_initcalls+0x1b2/0x3e0 [ 34.192342][ C2] kernel_init_freeable+0x232/0x310 [ 34.192551][ C2] kernel_init+0x20/0x200 [ 34.192821][ C2] ret_from_fork+0x31/0x70 [ 34.192998][ C2] ret_from_fork_asm+0x1a/0x30 [ 34.193174][ C2] } [ 34.193246][ C2] ... key at: [] __key.37+0x0/0x40 [ 34.193454][ C2] ... acquired at: [ 34.193554][ C2] mark_lock+0x28d/0x3e0 [ 34.193689][ C2] mark_usage+0xd9/0x2a0 [ 34.193826][ C2] __lock_acquire+0x797/0x1570 [ 34.194042][ C2] lock_acquire.part.0+0xeb/0x330 [ 34.194186][ C2] _raw_write_lock+0x30/0x40 [ 34.194320][ C2] addrconf_rs_timer+0xa9/0x730 [ 34.194456][ C2] call_timer_fn+0x13b/0x230 [ 34.194672][ C2] __run_timers+0x545/0x810 [ 34.194811][ C2] timer_expire_remote+0x9b/0xe0 [ 34.194946][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 34.195085][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 34.195299][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 34.195435][ C2] __do_softirq+0x1f8/0x5df [ 34.195569][ C2] irq_exit_rcu+0x97/0xc0 [ 34.195705][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 34.195951][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 34.196131][ C2] default_idle+0xf/0x20 [ 34.196277][ C2] default_idle_call+0x6d/0xb0 [ 34.196420][ C2] cpuidle_idle_call+0x1f4/0x280 [ 34.196636][ C2] do_idle+0xf9/0x160 [ 34.196739][ C2] cpu_startup_entry+0x54/0x60 [ 34.196874][ C2] start_secondary+0x21c/0x2b0 [ 34.197009][ C2] common_startup_64+0x12c/0x138 [ 34.197146][ C2] [ 34.197314][ C2] [ 34.197314][ C2] stack backtrace: [ 34.197480][ C2] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 6.9.0-rc1-virtme #1 [ 34.197681][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 34.198062][ C2] Call Trace: [ 34.198168][ C2] [ 34.198242][ C2] dump_stack_lvl+0x82/0xd0 [ 34.198393][ C2] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 34.198646][ C2] ? kernel_text_address+0x17/0xe0 [ 34.198784][ C2] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 34.198963][ C2] ? __pfx_usage_skip+0x10/0x10 [ 34.199100][ C2] ? __pfx_usage_match+0x10/0x10 [ 34.199235][ C2] ? arch_stack_walk+0x8c/0xf0 [ 34.199382][ C2] mark_lock_irq+0x4cd/0xa10 [ 34.199516][ C2] ? common_startup_64+0x12c/0x138 [ 34.199651][ C2] ? __pfx_mark_lock_irq+0x10/0x10 [ 34.199791][ C2] ? __pfx_stack_trace_save+0x10/0x10 [ 34.200021][ C2] ? save_trace+0x8f/0x5b0 [ 34.200159][ C2] mark_lock+0x28d/0x3e0 [ 34.200283][ C2] ? __pfx_stack_trace_save+0x10/0x10 [ 34.200421][ C2] mark_usage+0xd9/0x2a0 [ 34.200600][ C2] __lock_acquire+0x797/0x1570 [ 34.200737][ C2] ? __pfx_validate_chain+0x10/0x10 [ 34.200872][ C2] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 34.201016][ C2] lock_acquire.part.0+0xeb/0x330 [ 34.201152][ C2] ? addrconf_rs_timer+0xa9/0x730 [ 34.201370][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 34.201507][ C2] ? trace_lock_acquire+0x135/0x1c0 [ 34.201643][ C2] ? addrconf_rs_timer+0xa9/0x730 [ 34.201777][ C2] ? lock_acquire+0x32/0xc0 [ 34.201990][ C2] ? addrconf_rs_timer+0xa9/0x730 [ 34.202124][ C2] _raw_write_lock+0x30/0x40 [ 34.202270][ C2] ? addrconf_rs_timer+0xa9/0x730 [ 34.202406][ C2] addrconf_rs_timer+0xa9/0x730 [ 34.202619][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 34.202755][ C2] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 34.202892][ C2] ? call_timer_fn+0xe8/0x230 [ 34.203026][ C2] ? lock_acquire+0x32/0xc0 [ 34.203236][ C2] ? call_timer_fn+0xe8/0x230 [ 34.203372][ C2] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 34.203505][ C2] call_timer_fn+0x13b/0x230 [ 34.203643][ C2] ? call_timer_fn+0xe8/0x230 [ 34.203777][ C2] ? call_timer_fn+0xe8/0x230 [ 34.203992][ C2] ? __pfx_call_timer_fn+0x10/0x10 [ 34.204126][ C2] ? mark_lock+0x38/0x3e0 [ 34.204246][ C2] __run_timers+0x545/0x810 [ 34.204382][ C2] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 34.204593][ C2] ? __pfx___run_timers+0x10/0x10 [ 34.204727][ C2] ? __lock_release+0x103/0x460 [ 34.204871][ C2] ? do_raw_spin_lock+0x131/0x270 [ 34.205016][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 34.205228][ C2] ? lock_acquire+0x32/0xc0 [ 34.205362][ C2] ? timer_expire_remote+0x93/0xe0 [ 34.205498][ C2] timer_expire_remote+0x9b/0xe0 [ 34.205643][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 34.205782][ C2] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10 [ 34.206121][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 34.206262][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 34.206404][ C2] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 34.206559][ C2] __do_softirq+0x1f8/0x5df [ 34.206783][ C2] irq_exit_rcu+0x97/0xc0 [ 34.206886][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 34.207026][ C2] [ 34.207096][ C2] [ 34.207165][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 34.207337][ C2] RIP: 0010:default_idle+0xf/0x20 [ 34.207484][ C2] Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d d3 eb 32 00 fb f4 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 [ 34.208062][ C2] RSP: 0018:ffffc9000015fdf8 EFLAGS: 00000242 [ 34.208245][ C2] RAX: 00000000000d8243 RBX: 1ffff9200002bfc1 RCX: ffffffff8a732ea5 [ 34.208461][ C2] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff87eac1d4 [ 34.208752][ C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c2709c [ 34.208957][ C2] R10: ffff8880361384e3 R11: 1ffff110003ab28c R12: 0000000000000000 [ 34.209160][ C2] R13: ffff888001b8c5c0 R14: dffffc0000000000 R15: 0000000000000000 [ 34.209374][ C2] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 34.209511][ C2] ? cpuidle_idle_call+0x1f4/0x280 [ 34.209653][ C2] default_idle_call+0x6d/0xb0 [ 34.209792][ C2] cpuidle_idle_call+0x1f4/0x280 [ 34.210007][ C2] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 34.210142][ C2] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 34.210280][ C2] do_idle+0xf9/0x160 [ 34.210383][ C2] cpu_startup_entry+0x54/0x60 [ 34.210594][ C2] start_secondary+0x21c/0x2b0 [ 34.210732][ C2] ? __pfx_start_secondary+0x10/0x10 [ 34.210879][ C2] common_startup_64+0x12c/0x138 [ 34.211016][ C2] WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr