[ 32.981248][ T297] Initializing XFRM netlink socket [ 33.595951][ C2] [ 33.596051][ C2] ======================================================== [ 33.596256][ C2] WARNING: possible irq lock inversion dependency detected [ 33.596452][ C2] 6.9.0-rc1-virtme #1 Not tainted [ 33.596590][ C2] -------------------------------------------------------- [ 33.596786][ C2] swapper/2/0 just changed the state of lock: [ 33.596959][ C2] ffff888007002580 (&ndev->lock){++-.}-{2:2}, at: addrconf_rs_timer+0xa9/0x730 [ 33.597291][ C2] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 33.597486][ C2] (&p->alloc_lock){+.+.}-{2:2} [ 33.597490][ C2] [ 33.597490][ C2] [ 33.597490][ C2] and interrupts could create inverse lock ordering between them. [ 33.597490][ C2] [ 33.598044][ C2] [ 33.598044][ C2] other info that might help us debug this: [ 33.598238][ C2] Possible interrupt unsafe locking scenario: [ 33.598238][ C2] [ 33.598428][ C2] CPU0 CPU1 [ 33.598555][ C2] ---- ---- [ 33.598684][ C2] lock(&p->alloc_lock); [ 33.598785][ C2] local_irq_disable(); [ 33.598944][ C2] lock(&ndev->lock); [ 33.599124][ C2] lock(&p->alloc_lock); [ 33.599288][ C2] [ 33.599386][ C2] lock(&ndev->lock); [ 33.599486][ C2] [ 33.599486][ C2] *** DEADLOCK *** [ 33.599486][ C2] [ 33.599746][ C2] 1 lock held by swapper/2/0: [ 33.599879][ C2] #0: ffffc90000230d68 ((&ndev->rs_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 33.600122][ C2] [ 33.600122][ C2] the shortest dependencies between 2nd lock and 1st lock: [ 33.600416][ C2] -> (&p->alloc_lock){+.+.}-{2:2} { [ 33.600554][ C2] HARDIRQ-ON-W at: [ 33.600657][ C2] __lock_acquire+0x797/0x1570 [ 33.600827][ C2] lock_acquire.part.0+0xeb/0x330 [ 33.601078][ C2] _raw_spin_lock+0x30/0x40 [ 33.601247][ C2] set_mems_allowed+0x1d/0x210 [ 33.601414][ C2] kernel_init_freeable+0x72/0x310 [ 33.601580][ C2] kernel_init+0x20/0x200 [ 33.601746][ C2] ret_from_fork+0x31/0x70 [ 33.601913][ C2] ret_from_fork_asm+0x1a/0x30 [ 33.602075][ C2] SOFTIRQ-ON-W at: [ 33.602172][ C2] __lock_acquire+0x797/0x1570 [ 33.602336][ C2] lock_acquire.part.0+0xeb/0x330 [ 33.602499][ C2] _raw_spin_lock+0x30/0x40 [ 33.602738][ C2] set_mems_allowed+0x1d/0x210 [ 33.602900][ C2] kernel_init_freeable+0x72/0x310 [ 33.603074][ C2] kernel_init+0x20/0x200 [ 33.603237][ C2] ret_from_fork+0x31/0x70 [ 33.603480][ C2] ret_from_fork_asm+0x1a/0x30 [ 33.603643][ C2] INITIAL USE at: [ 33.603740][ C2] __lock_acquire+0x797/0x1570 [ 33.604007][ C2] lock_acquire.part.0+0xeb/0x330 [ 33.604172][ C2] _raw_spin_lock+0x30/0x40 [ 33.604335][ C2] set_mems_allowed+0x1d/0x210 [ 33.604501][ C2] kernel_init_freeable+0x72/0x310 [ 33.604666][ C2] kernel_init+0x20/0x200 [ 33.604828][ C2] ret_from_fork+0x31/0x70 [ 33.604992][ C2] ret_from_fork_asm+0x1a/0x30 [ 33.605154][ C2] } [ 33.605220][ C2] ... key at: [] __key.388+0x0/0x40 [ 33.605418][ C2] ... acquired at: [ 33.605520][ C2] __lock_acquire+0xaf0/0x1570 [ 33.605654][ C2] lock_acquire.part.0+0xeb/0x330 [ 33.605859][ C2] _raw_spin_lock+0x30/0x40 [ 33.605991][ C2] __get_task_comm+0x27/0x70 [ 33.606125][ C2] ref_tracker_alloc+0x2ee/0x490 [ 33.606255][ C2] netdev_get_by_index+0x5e/0x80 [ 33.606458][ C2] fib6_nh_init+0x3d8/0x1580 [ 33.606590][ C2] ip6_route_info_create+0xf18/0x17d0 [ 33.606729][ C2] addrconf_f6i_alloc+0x265/0x560 [ 33.606860][ C2] __ipv6_dev_ac_inc+0x25f/0xb10 [ 33.607083][ C2] addrconf_join_anycast+0x1c0/0x220 [ 33.607216][ C2] dev_forward_change+0x2a6/0x7b0 [ 33.607347][ C2] addrconf_fixup_forwarding+0x152/0x460 [ 33.607512][ C2] addrconf_sysctl_forward+0x212/0x2b0 [ 33.607717][ C2] proc_sys_call_handler+0x403/0x5e0 [ 33.607852][ C2] vfs_write+0x9e5/0x10a0 [ 33.607983][ C2] ksys_write+0xf5/0x1e0 [ 33.608113][ C2] do_syscall_64+0xc6/0x1e0 [ 33.608317][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 33.608480][ C2] [ 33.608546][ C2] -> (&ndev->lock){++-.}-{2:2} { [ 33.608679][ C2] HARDIRQ-ON-W at: [ 33.608778][ C2] __lock_acquire+0x797/0x1570 [ 33.609034][ C2] lock_acquire.part.0+0xeb/0x330 [ 33.609200][ C2] _raw_write_lock_bh+0x38/0x50 [ 33.609363][ C2] addrconf_permanent_addr+0x6e/0x670 [ 33.609528][ C2] addrconf_notify+0x749/0xd60 [ 33.609690][ C2] notifier_call_chain+0xcd/0x150 [ 33.609851][ C2] __dev_notify_flags+0xe6/0x250 [ 33.610018][ C2] dev_change_flags+0xec/0x160 [ 33.610180][ C2] do_setlink+0x7d6/0x21e0 [ 33.610342][ C2] __rtnl_newlink+0xaa7/0xd80 [ 33.610505][ C2] rtnl_newlink+0x63/0xa0 [ 33.610742][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 33.610903][ C2] netlink_rcv_skb+0x130/0x360 [ 33.611085][ C2] netlink_unicast+0x449/0x710 [ 33.611254][ C2] netlink_sendmsg+0x723/0xbe0 [ 33.611492][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 33.611655][ C2] ___sys_sendmsg+0xee/0x170 [ 33.611818][ C2] __sys_sendmsg+0xcd/0x170 [ 33.612061][ C2] do_syscall_64+0xc6/0x1e0 [ 33.612224][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 33.612417][ C2] HARDIRQ-ON-R at: [ 33.612519][ C2] __lock_acquire+0x797/0x1570 [ 33.612683][ C2] lock_acquire.part.0+0xeb/0x330 [ 33.612845][ C2] _raw_read_lock_bh+0x44/0x80 [ 33.613009][ C2] inet6_fill_ifla6_attrs+0x516/0x740 [ 33.613249][ C2] inet6_fill_link_af+0x5e/0xe0 [ 33.613411][ C2] rtnl_fill_ifinfo+0x1615/0x2a90 [ 33.613576][ C2] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 33.613898][ C2] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 33.614098][ C2] rtmsg_ifinfo+0x5b/0xa0 [ 33.614266][ C2] register_netdevice+0x1177/0x1690 [ 33.614427][ C2] register_netdev+0x20/0x40 [ 33.614588][ C2] vti6_init_net+0x25d/0x380 [ 33.614755][ C2] ops_init+0x9b/0x560 [ 33.614884][ C2] register_pernet_operations+0x2db/0x710 [ 33.615169][ C2] register_pernet_device+0x2a/0x60 [ 33.615330][ C2] vti6_tunnel_init+0x18/0x110 [ 33.615492][ C2] do_one_initcall+0x8d/0x1e0 [ 33.615727][ C2] do_initcalls+0x1b2/0x3e0 [ 33.615890][ C2] kernel_init_freeable+0x232/0x310 [ 33.616060][ C2] kernel_init+0x20/0x200 [ 33.616222][ C2] ret_from_fork+0x31/0x70 [ 33.616460][ C2] ret_from_fork_asm+0x1a/0x30 [ 33.616622][ C2] IN-SOFTIRQ-W at: [ 33.616719][ C2] __lock_acquire+0x797/0x1570 [ 33.616884][ C2] lock_acquire.part.0+0xeb/0x330 [ 33.617132][ C2] _raw_write_lock+0x30/0x40 [ 33.617301][ C2] addrconf_rs_timer+0xa9/0x730 [ 33.617462][ C2] call_timer_fn+0x13b/0x230 [ 33.617626][ C2] __run_timers+0x545/0x810 [ 33.617790][ C2] run_timer_softirq+0xe8/0x1b0 [ 33.617953][ C2] __do_softirq+0x1f8/0x5df [ 33.618115][ C2] irq_exit_rcu+0x97/0xc0 [ 33.618281][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 33.618475][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 33.618753][ C2] default_idle+0xf/0x20 [ 33.618915][ C2] default_idle_call+0x6d/0xb0 [ 33.619088][ C2] cpuidle_idle_call+0x1f4/0x280 [ 33.619250][ C2] do_idle+0xf9/0x160 [ 33.619460][ C2] cpu_startup_entry+0x54/0x60 [ 33.619625][ C2] start_secondary+0x21c/0x2b0 [ 33.619788][ C2] common_startup_64+0x12c/0x138 [ 33.620024][ C2] INITIAL USE at: [ 33.620122][ C2] __lock_acquire+0x797/0x1570 [ 33.620284][ C2] lock_acquire.part.0+0xeb/0x330 [ 33.620447][ C2] _raw_write_lock_bh+0x38/0x50 [ 33.620686][ C2] addrconf_permanent_addr+0x6e/0x670 [ 33.620848][ C2] addrconf_notify+0x749/0xd60 [ 33.621010][ C2] notifier_call_chain+0xcd/0x150 [ 33.621172][ C2] __dev_notify_flags+0xe6/0x250 [ 33.621411][ C2] dev_change_flags+0xec/0x160 [ 33.621571][ C2] do_setlink+0x7d6/0x21e0 [ 33.621737][ C2] __rtnl_newlink+0xaa7/0xd80 [ 33.621987][ C2] rtnl_newlink+0x63/0xa0 [ 33.622148][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 33.622312][ C2] netlink_rcv_skb+0x130/0x360 [ 33.622476][ C2] netlink_unicast+0x449/0x710 [ 33.622637][ C2] netlink_sendmsg+0x723/0xbe0 [ 33.622799][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 33.622974][ C2] ___sys_sendmsg+0xee/0x170 [ 33.623146][ C2] __sys_sendmsg+0xcd/0x170 [ 33.623308][ C2] do_syscall_64+0xc6/0x1e0 [ 33.623470][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 33.623814][ C2] INITIAL READ USE at: [ 33.623921][ C2] __lock_acquire+0x797/0x1570 [ 33.624087][ C2] lock_acquire.part.0+0xeb/0x330 [ 33.624252][ C2] _raw_read_lock_bh+0x44/0x80 [ 33.624487][ C2] inet6_fill_ifla6_attrs+0x516/0x740 [ 33.624680][ C2] inet6_fill_link_af+0x5e/0xe0 [ 33.624841][ C2] rtnl_fill_ifinfo+0x1615/0x2a90 [ 33.625080][ C2] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 33.625276][ C2] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 33.625470][ C2] rtmsg_ifinfo+0x5b/0xa0 [ 33.625707][ C2] register_netdevice+0x1177/0x1690 [ 33.625900][ C2] register_netdev+0x20/0x40 [ 33.626063][ C2] vti6_init_net+0x25d/0x380 [ 33.626299][ C2] ops_init+0x9b/0x560 [ 33.626464][ C2] register_pernet_operations+0x2db/0x710 [ 33.626657][ C2] register_pernet_device+0x2a/0x60 [ 33.626939][ C2] vti6_tunnel_init+0x18/0x110 [ 33.627104][ C2] do_one_initcall+0x8d/0x1e0 [ 33.627266][ C2] do_initcalls+0x1b2/0x3e0 [ 33.627429][ C2] kernel_init_freeable+0x232/0x310 [ 33.627633][ C2] kernel_init+0x20/0x200 [ 33.627799][ C2] ret_from_fork+0x31/0x70 [ 33.627961][ C2] ret_from_fork_asm+0x1a/0x30 [ 33.628122][ C2] } [ 33.628188][ C2] ... key at: [] __key.37+0x0/0x40 [ 33.628380][ C2] ... acquired at: [ 33.628475][ C2] mark_lock+0x28d/0x3e0 [ 33.628684][ C2] mark_usage+0xd9/0x2a0 [ 33.628813][ C2] __lock_acquire+0x797/0x1570 [ 33.628942][ C2] lock_acquire.part.0+0xeb/0x330 [ 33.629071][ C2] _raw_write_lock+0x30/0x40 [ 33.629275][ C2] addrconf_rs_timer+0xa9/0x730 [ 33.629405][ C2] call_timer_fn+0x13b/0x230 [ 33.629537][ C2] __run_timers+0x545/0x810 [ 33.629665][ C2] run_timer_softirq+0xe8/0x1b0 [ 33.629793][ C2] __do_softirq+0x1f8/0x5df [ 33.630004][ C2] irq_exit_rcu+0x97/0xc0 [ 33.630136][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 33.630298][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 33.630461][ C2] default_idle+0xf/0x20 [ 33.630589][ C2] default_idle_call+0x6d/0xb0 [ 33.630717][ C2] cpuidle_idle_call+0x1f4/0x280 [ 33.630846][ C2] do_idle+0xf9/0x160 [ 33.630957][ C2] cpu_startup_entry+0x54/0x60 [ 33.631087][ C2] start_secondary+0x21c/0x2b0 [ 33.631229][ C2] common_startup_64+0x12c/0x138 [ 33.631357][ C2] [ 33.631422][ C2] [ 33.631422][ C2] stack backtrace: [ 33.631652][ C2] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 6.9.0-rc1-virtme #1 [ 33.631852][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 33.632169][ C2] Call Trace: [ 33.632356][ C2] [ 33.632426][ C2] dump_stack_lvl+0x82/0xd0 [ 33.632562][ C2] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 33.632723][ C2] ? kernel_text_address+0x17/0xe0 [ 33.632853][ C2] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 33.633100][ C2] ? __pfx_usage_skip+0x10/0x10 [ 33.633231][ C2] ? __pfx_usage_match+0x10/0x10 [ 33.633359][ C2] ? arch_stack_walk+0x8c/0xf0 [ 33.633489][ C2] mark_lock_irq+0x4cd/0xa10 [ 33.633628][ C2] ? common_startup_64+0x12c/0x138 [ 33.633756][ C2] ? __pfx_mark_lock_irq+0x10/0x10 [ 33.633892][ C2] ? __pfx_stack_trace_save+0x10/0x10 [ 33.634026][ C2] ? save_trace+0x8f/0x5b0 [ 33.634228][ C2] mark_lock+0x28d/0x3e0 [ 33.634326][ C2] ? __pfx_stack_trace_save+0x10/0x10 [ 33.634453][ C2] mark_usage+0xd9/0x2a0 [ 33.634553][ C2] __lock_acquire+0x797/0x1570 [ 33.634686][ C2] ? __pfx_validate_chain+0x10/0x10 [ 33.634888][ C2] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 33.635032][ C2] lock_acquire.part.0+0xeb/0x330 [ 33.635161][ C2] ? addrconf_rs_timer+0xa9/0x730 [ 33.635288][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 33.635491][ C2] ? trace_lock_acquire+0x135/0x1c0 [ 33.635624][ C2] ? addrconf_rs_timer+0xa9/0x730 [ 33.635751][ C2] ? lock_acquire+0x32/0xc0 [ 33.635888][ C2] ? addrconf_rs_timer+0xa9/0x730 [ 33.636090][ C2] _raw_write_lock+0x30/0x40 [ 33.636219][ C2] ? addrconf_rs_timer+0xa9/0x730 [ 33.636346][ C2] addrconf_rs_timer+0xa9/0x730 [ 33.636473][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 33.636678][ C2] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 33.636808][ C2] ? call_timer_fn+0xe8/0x230 [ 33.636936][ C2] ? lock_acquire+0x32/0xc0 [ 33.637070][ C2] ? call_timer_fn+0xe8/0x230 [ 33.637199][ C2] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 33.637399][ C2] call_timer_fn+0x13b/0x230 [ 33.637528][ C2] ? call_timer_fn+0xe8/0x230 [ 33.637657][ C2] ? call_timer_fn+0xe8/0x230 [ 33.637786][ C2] ? __pfx_call_timer_fn+0x10/0x10 [ 33.637994][ C2] ? mark_lock+0x38/0x3e0 [ 33.638095][ C2] __run_timers+0x545/0x810 [ 33.638223][ C2] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 33.638361][ C2] ? __pfx___run_timers+0x10/0x10 [ 33.638490][ C2] ? do_raw_spin_lock+0x131/0x270 [ 33.638622][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 33.638750][ C2] ? lock_acquire+0x32/0xc0 [ 33.638877][ C2] ? run_timer_softirq+0xe0/0x1b0 [ 33.639021][ C2] run_timer_softirq+0xe8/0x1b0 [ 33.639149][ C2] __do_softirq+0x1f8/0x5df [ 33.639279][ C2] irq_exit_rcu+0x97/0xc0 [ 33.639380][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 33.639516][ C2] [ 33.639587][ C2] [ 33.639725][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 33.639883][ C2] RIP: 0010:default_idle+0xf/0x20 [ 33.640021][ 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 [ 33.640562][ C2] RSP: 0018:ffffc9000015fdf8 EFLAGS: 00000242 [ 33.640727][ C2] RAX: 00000000000db979 RBX: 1ffff9200002bfc1 RCX: ffffffff8eb32ea5 [ 33.641007][ C2] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8c2ac1d4 [ 33.641199][ C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1005ee709c [ 33.641393][ C2] R10: ffff88802f7384e3 R11: ffff88802f73de40 R12: 0000000000000000 [ 33.641590][ C2] R13: ffff888001b8c5c0 R14: dffffc0000000000 R15: 0000000000000000 [ 33.641784][ C2] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 33.641912][ C2] ? cpuidle_idle_call+0x1f4/0x280 [ 33.642042][ C2] default_idle_call+0x6d/0xb0 [ 33.642177][ C2] cpuidle_idle_call+0x1f4/0x280 [ 33.642307][ C2] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 33.642435][ C2] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 33.642573][ C2] do_idle+0xf9/0x160 [ 33.642745][ C2] cpu_startup_entry+0x54/0x60 [ 33.642874][ C2] start_secondary+0x21c/0x2b0 [ 33.643020][ C2] ? __pfx_start_secondary+0x10/0x10 [ 33.643150][ C2] common_startup_64+0x12c/0x138 [ 33.643431][ C2] WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr