[ 32.814994][ T288] br0: port 1(veth1) entered blocking state [ 32.815438][ T288] br0: port 1(veth1) entered disabled state [ 32.815957][ T288] veth1: entered allmulticast mode [ 32.817960][ T288] veth1: entered promiscuous mode [ 32.950044][ T290] br0: port 2(veth2) entered blocking state [ 32.950349][ T290] br0: port 2(veth2) entered disabled state [ 32.950621][ T290] veth2: entered allmulticast mode [ 32.952639][ T290] veth2: entered promiscuous mode [ 33.219006][ T7] br0: port 1(veth1) entered blocking state [ 33.219487][ T7] br0: port 1(veth1) entered forwarding state [ 33.350016][ T49] br0: port 2(veth2) entered blocking state [ 33.350320][ T49] br0: port 2(veth2) entered forwarding state [ 45.433075][ T316] GACT probability NOT on [ 48.471444][ C2] [ 48.471650][ C2] ======================================================== [ 48.471962][ C2] WARNING: possible irq lock inversion dependency detected [ 48.472178][ C2] 6.9.0-rc1-virtme #1 Not tainted [ 48.472320][ C2] -------------------------------------------------------- [ 48.472574][ C2] swapper/2/0 just changed the state of lock: [ 48.472763][ C2] ffff888007992c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 48.473165][ C2] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 48.473384][ C2] (&p->alloc_lock){+.+.}-{2:2} [ 48.473389][ C2] [ 48.473389][ C2] [ 48.473389][ C2] and interrupts could create inverse lock ordering between them. [ 48.473389][ C2] [ 48.473923][ C2] [ 48.473923][ C2] other info that might help us debug this: [ 48.474143][ C2] Chain exists of: [ 48.474143][ C2] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 48.474143][ C2] [ 48.474479][ C2] Possible interrupt unsafe locking scenario: [ 48.474479][ C2] [ 48.474720][ C2] CPU0 CPU1 [ 48.474869][ C2] ---- ---- [ 48.475012][ C2] lock(&p->alloc_lock); [ 48.475283][ C2] local_irq_disable(); [ 48.475465][ C2] lock(&br->lock); [ 48.475640][ C2] lock(lweventlist_lock); [ 48.475820][ C2] [ 48.475927][ C2] lock(&br->lock); [ 48.476052][ C2] [ 48.476052][ C2] *** DEADLOCK *** [ 48.476052][ C2] [ 48.476296][ C2] 1 lock held by swapper/2/0: [ 48.476438][ C2] #0: ffffc90000230b68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 48.476764][ C2] [ 48.476764][ C2] the shortest dependencies between 2nd lock and 1st lock: [ 48.477070][ C2] -> (&p->alloc_lock){+.+.}-{2:2} { [ 48.477219][ C2] HARDIRQ-ON-W at: [ 48.477342][ C2] __lock_acquire+0x797/0x1570 [ 48.477539][ C2] lock_acquire.part.0+0xeb/0x330 [ 48.477719][ C2] _raw_spin_lock+0x30/0x40 [ 48.477900][ C2] set_mems_allowed+0x1d/0x210 [ 48.478087][ C2] kernel_init_freeable+0x72/0x310 [ 48.478273][ C2] kernel_init+0x20/0x200 [ 48.478472][ C2] ret_from_fork+0x31/0x70 [ 48.478654][ C2] ret_from_fork_asm+0x1a/0x30 [ 48.478843][ C2] SOFTIRQ-ON-W at: [ 48.478947][ C2] __lock_acquire+0x797/0x1570 [ 48.479138][ C2] lock_acquire.part.0+0xeb/0x330 [ 48.479320][ C2] _raw_spin_lock+0x30/0x40 [ 48.479511][ C2] set_mems_allowed+0x1d/0x210 [ 48.479690][ C2] kernel_init_freeable+0x72/0x310 [ 48.479875][ C2] kernel_init+0x20/0x200 [ 48.480065][ C2] ret_from_fork+0x31/0x70 [ 48.480256][ C2] ret_from_fork_asm+0x1a/0x30 [ 48.480431][ C2] INITIAL USE at: [ 48.480575][ C2] __lock_acquire+0x797/0x1570 [ 48.480777][ C2] lock_acquire.part.0+0xeb/0x330 [ 48.480961][ C2] _raw_spin_lock+0x30/0x40 [ 48.481158][ C2] set_mems_allowed+0x1d/0x210 [ 48.481342][ C2] kernel_init_freeable+0x72/0x310 [ 48.481531][ C2] kernel_init+0x20/0x200 [ 48.481710][ C2] ret_from_fork+0x31/0x70 [ 48.481914][ C2] ret_from_fork_asm+0x1a/0x30 [ 48.482097][ C2] } [ 48.482170][ C2] ... key at: [] __key.387+0x0/0x40 [ 48.482398][ C2] ... acquired at: [ 48.482515][ C2] __lock_acquire+0xaf0/0x1570 [ 48.482663][ C2] lock_acquire.part.0+0xeb/0x330 [ 48.482810][ C2] _raw_spin_lock+0x30/0x40 [ 48.482970][ C2] __get_task_comm+0x27/0x70 [ 48.483119][ C2] ref_tracker_alloc+0x2ee/0x490 [ 48.483296][ C2] linkwatch_fire_event+0x196/0x200 [ 48.483443][ C2] veth_newlink+0x367/0x830 [veth] [ 48.483599][ C2] rtnl_newlink_create+0x341/0x850 [ 48.483752][ C2] __rtnl_newlink+0xac9/0xd80 [ 48.483895][ C2] rtnl_newlink+0x63/0xa0 [ 48.484041][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 48.484196][ C2] netlink_rcv_skb+0x130/0x360 [ 48.484339][ C2] netlink_unicast+0x449/0x710 [ 48.484494][ C2] netlink_sendmsg+0x723/0xbe0 [ 48.484664][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 48.484817][ C2] ___sys_sendmsg+0xee/0x170 [ 48.484957][ C2] __sys_sendmsg+0xcd/0x170 [ 48.485114][ C2] do_syscall_64+0xc6/0x1e0 [ 48.485268][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 48.485451][ C2] [ 48.485526][ C2] -> (lweventlist_lock){....}-{2:2} { [ 48.485687][ C2] INITIAL USE at: [ 48.485793][ C2] __lock_acquire+0x797/0x1570 [ 48.485977][ C2] lock_acquire.part.0+0xeb/0x330 [ 48.486164][ C2] _raw_spin_lock_irqsave+0x3f/0x60 [ 48.486343][ C2] linkwatch_sync_dev+0x29/0x1f0 [ 48.486532][ C2] rtnl_getlink+0x4c9/0x970 [ 48.486721][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 48.486917][ C2] netlink_rcv_skb+0x130/0x360 [ 48.487107][ C2] netlink_unicast+0x449/0x710 [ 48.487304][ C2] netlink_sendmsg+0x723/0xbe0 [ 48.487494][ C2] __sys_sendto+0x37d/0x410 [ 48.487693][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 48.487889][ C2] do_syscall_64+0xc6/0x1e0 [ 48.488068][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 48.488276][ C2] } [ 48.488347][ C2] ... key at: [] lweventlist_lock+0x18/0x60 [ 48.488561][ C2] ... acquired at: [ 48.488674][ C2] __lock_acquire+0xaf0/0x1570 [ 48.488815][ C2] lock_acquire.part.0+0xeb/0x330 [ 48.488972][ C2] _raw_spin_lock_irqsave+0x3f/0x60 [ 48.489114][ C2] linkwatch_fire_event+0x74/0x200 [ 48.489253][ C2] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 48.489494][ C2] br_set_mac_address+0x1f3/0x260 [bridge] [ 48.489712][ C2] dev_set_mac_address+0x28a/0x410 [ 48.489863][ C2] dev_set_mac_address_user+0x31/0x50 [ 48.490005][ C2] do_setlink+0x17b4/0x21e0 [ 48.490149][ C2] rtnl_setlink+0x1f7/0x310 [ 48.490294][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 48.490528][ C2] netlink_rcv_skb+0x130/0x360 [ 48.490672][ C2] netlink_unicast+0x449/0x710 [ 48.490821][ C2] netlink_sendmsg+0x723/0xbe0 [ 48.490965][ C2] __sys_sendto+0x37d/0x410 [ 48.491188][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 48.491329][ C2] do_syscall_64+0xc6/0x1e0 [ 48.491483][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 48.491707][ C2] [ 48.491817][ C2] -> (&br->lock){+.-.}-{2:2} { [ 48.492174][ C2] HARDIRQ-ON-W at: [ 48.492325][ C2] __lock_acquire+0x797/0x1570 [ 48.492595][ C2] lock_acquire.part.0+0xeb/0x330 [ 48.492877][ C2] _raw_spin_lock_bh+0x38/0x50 [ 48.493311][ C2] br_set_mac_address+0xd2/0x260 [bridge] [ 48.493721][ C2] dev_set_mac_address+0x28a/0x410 [ 48.494006][ C2] dev_set_mac_address_user+0x31/0x50 [ 48.494440][ C2] do_setlink+0x17b4/0x21e0 [ 48.494747][ C2] rtnl_setlink+0x1f7/0x310 [ 48.495027][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 48.495335][ C2] netlink_rcv_skb+0x130/0x360 [ 48.495614][ C2] netlink_unicast+0x449/0x710 [ 48.495906][ C2] netlink_sendmsg+0x723/0xbe0 [ 48.496187][ C2] __sys_sendto+0x37d/0x410 [ 48.496619][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 48.496937][ C2] do_syscall_64+0xc6/0x1e0 [ 48.497228][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 48.497568][ C2] IN-SOFTIRQ-W at: [ 48.497747][ C2] __lock_acquire+0x797/0x1570 [ 48.498039][ C2] lock_acquire.part.0+0xeb/0x330 [ 48.498359][ C2] _raw_spin_lock+0x30/0x40 [ 48.498768][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 48.499173][ C2] call_timer_fn+0x13b/0x230 [ 48.499453][ C2] __run_timers+0x545/0x810 [ 48.499882][ C2] timer_expire_remote+0x9b/0xe0 [ 48.500176][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 48.500458][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 48.500908][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 48.501210][ C2] __do_softirq+0x1f8/0x5df [ 48.501489][ C2] irq_exit_rcu+0x97/0xc0 [ 48.501771][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 48.502265][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 48.502621][ C2] default_idle+0xf/0x20 [ 48.502877][ C2] default_idle_call+0x6d/0xb0 [ 48.503257][ C2] cpuidle_idle_call+0x1f4/0x280 [ 48.503512][ C2] do_idle+0xf9/0x160 [ 48.503721][ C2] cpu_startup_entry+0x54/0x60 [ 48.504125][ C2] start_secondary+0x21c/0x2b0 [ 48.504408][ C2] common_startup_64+0x12c/0x138 [ 48.504665][ C2] INITIAL USE at: [ 48.504775][ C2] __lock_acquire+0x797/0x1570 [ 48.505058][ C2] lock_acquire.part.0+0xeb/0x330 [ 48.505233][ C2] _raw_spin_lock_bh+0x38/0x50 [ 48.505410][ C2] br_set_mac_address+0xd2/0x260 [bridge] [ 48.505777][ C2] dev_set_mac_address+0x28a/0x410 [ 48.505955][ C2] dev_set_mac_address_user+0x31/0x50 [ 48.506132][ C2] do_setlink+0x17b4/0x21e0 [ 48.506309][ C2] rtnl_setlink+0x1f7/0x310 [ 48.506652][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 48.506825][ C2] netlink_rcv_skb+0x130/0x360 [ 48.507010][ C2] netlink_unicast+0x449/0x710 [ 48.507265][ C2] netlink_sendmsg+0x723/0xbe0 [ 48.507438][ C2] __sys_sendto+0x37d/0x410 [ 48.507621][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 48.507795][ C2] do_syscall_64+0xc6/0x1e0 [ 48.508049][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 48.508258][ C2] } [ 48.508334][ C2] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 48.508712][ C2] ... acquired at: [ 48.508818][ C2] mark_lock+0x28d/0x3e0 [ 48.508962][ C2] mark_usage+0xd9/0x2a0 [ 48.509112][ C2] __lock_acquire+0x797/0x1570 [ 48.509357][ C2] lock_acquire.part.0+0xeb/0x330 [ 48.509505][ C2] _raw_spin_lock+0x30/0x40 [ 48.509650][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 48.509866][ C2] call_timer_fn+0x13b/0x230 [ 48.510012][ C2] __run_timers+0x545/0x810 [ 48.510155][ C2] timer_expire_remote+0x9b/0xe0 [ 48.510299][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 48.510448][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 48.510594][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 48.510818][ C2] __do_softirq+0x1f8/0x5df [ 48.510970][ C2] irq_exit_rcu+0x97/0xc0 [ 48.511119][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 48.511294][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 48.511557][ C2] default_idle+0xf/0x20 [ 48.511703][ C2] default_idle_call+0x6d/0xb0 [ 48.511847][ C2] cpuidle_idle_call+0x1f4/0x280 [ 48.511990][ C2] do_idle+0xf9/0x160 [ 48.512174][ C2] cpu_startup_entry+0x54/0x60 [ 48.512315][ C2] start_secondary+0x21c/0x2b0 [ 48.512474][ C2] common_startup_64+0x12c/0x138 [ 48.512629][ C2] [ 48.512701][ C2] [ 48.512701][ C2] stack backtrace: [ 48.512987][ C2] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 6.9.0-rc1-virtme #1 [ 48.513196][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 48.513590][ C2] Call Trace: [ 48.513701][ C2] [ 48.513777][ C2] dump_stack_lvl+0x82/0xd0 [ 48.513927][ C2] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 48.514102][ C2] ? common_startup_64+0x12c/0x138 [ 48.514332][ C2] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 48.514506][ C2] ? __pfx_usage_skip+0x10/0x10 [ 48.514647][ C2] ? __pfx_usage_match+0x10/0x10 [ 48.514786][ C2] ? arch_stack_walk+0x8c/0xf0 [ 48.515021][ C2] mark_lock_irq+0x4cd/0xa10 [ 48.515200][ C2] ? __pfx_mark_lock_irq+0x10/0x10 [ 48.515351][ C2] ? stack_trace_save+0x94/0xd0 [ 48.515495][ C2] ? save_trace+0x8f/0x5b0 [ 48.515719][ C2] mark_lock+0x28d/0x3e0 [ 48.515823][ C2] ? __pfx_validate_chain+0x10/0x10 [ 48.515968][ C2] mark_usage+0xd9/0x2a0 [ 48.516076][ C2] __lock_acquire+0x797/0x1570 [ 48.516220][ C2] ? __lock_acquire+0xaf0/0x1570 [ 48.516472][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 48.516792][ C2] lock_acquire.part.0+0xeb/0x330 [ 48.516960][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 48.517290][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 48.517494][ C2] ? trace_lock_acquire+0x135/0x1c0 [ 48.517697][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 48.518035][ C2] ? lock_acquire+0x32/0xc0 [ 48.518435][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 48.518789][ C2] _raw_spin_lock+0x30/0x40 [ 48.519023][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 48.519382][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 48.519734][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 48.520142][ C2] call_timer_fn+0x13b/0x230 [ 48.520373][ C2] ? call_timer_fn+0xe8/0x230 [ 48.520746][ C2] ? call_timer_fn+0xe8/0x230 [ 48.520968][ C2] ? __pfx_call_timer_fn+0x10/0x10 [ 48.521194][ C2] ? mark_lock+0x38/0x3e0 [ 48.521368][ C2] __run_timers+0x545/0x810 [ 48.521580][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 48.521973][ C2] ? __pfx___run_timers+0x10/0x10 [ 48.522193][ C2] ? __lock_release+0x103/0x460 [ 48.522415][ C2] ? do_raw_spin_lock+0x131/0x270 [ 48.522642][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 48.522999][ C2] ? lock_acquire+0x32/0xc0 [ 48.523220][ C2] ? timer_expire_remote+0x93/0xe0 [ 48.523449][ C2] timer_expire_remote+0x9b/0xe0 [ 48.523654][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 48.524028][ C2] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10 [ 48.524308][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 48.524535][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 48.524785][ C2] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 48.525294][ C2] __do_softirq+0x1f8/0x5df [ 48.525469][ C2] irq_exit_rcu+0x97/0xc0 [ 48.525577][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 48.525716][ C2] [ 48.525792][ C2] [ 48.525946][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 48.526121][ C2] RIP: 0010:default_idle+0xf/0x20 [ 48.526272][ 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 a3 30 35 00 fb f4 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 [ 48.526902][ C2] RSP: 0018:ffffc9000015fdf8 EFLAGS: 00000246 [ 48.527082][ C2] RAX: 00000000000d45d7 RBX: 1ffff9200002bfc1 RCX: ffffffffb450e9d5 [ 48.527410][ C2] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb1eaa4a4 [ 48.527708][ C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c2709c [ 48.527923][ C2] R10: ffff8880361384e3 R11: ffff88803612d9b0 R12: 0000000000000000 [ 48.528267][ C2] R13: ffff888001b7c5c0 R14: dffffc0000000000 R15: 0000000000000000 [ 48.528482][ C2] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 48.528645][ C2] ? cpuidle_idle_call+0x1f4/0x280 [ 48.528800][ C2] default_idle_call+0x6d/0xb0 [ 48.529071][ C2] cpuidle_idle_call+0x1f4/0x280 [ 48.529215][ C2] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 48.529369][ C2] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 48.529520][ C2] do_idle+0xf9/0x160 [ 48.529708][ C2] cpu_startup_entry+0x54/0x60 [ 48.529853][ C2] start_secondary+0x21c/0x2b0 [ 48.529992][ C2] ? __pfx_start_secondary+0x10/0x10 [ 48.530129][ C2] common_startup_64+0x12c/0x138 [ 48.530283][ C2] [ 232.299429][ T1506] br0: port 2(veth2) entered disabled state [ 232.407744][ T1507] br0: port 1(veth1) entered disabled state [ 232.505820][ T1508] veth2: left allmulticast mode [ 232.506008][ T1508] veth2: left promiscuous mode [ 232.506292][ T1508] br0: port 2(veth2) entered disabled state [ 232.507244][ T1508] veth1: left allmulticast mode [ 232.507428][ T1508] veth1: left promiscuous mode [ 232.507692][ T1508] br0: port 1(veth1) entered disabled state