[ 30.449880][ T292] br1: port 1(veth1) entered blocking state [ 30.450311][ T292] br1: port 1(veth1) entered disabled state [ 30.450733][ T292] veth1: entered allmulticast mode [ 30.453532][ T292] veth1: entered promiscuous mode [ 30.568613][ T34] br1: port 1(veth1) entered blocking state [ 30.568999][ T34] br1: port 1(veth1) entered forwarding state [ 30.690046][ T295] br1: port 2(veth2) entered blocking state [ 30.690403][ T295] br1: port 2(veth2) entered disabled state [ 30.690811][ T295] veth2: entered allmulticast mode [ 30.693934][ T295] veth2: entered promiscuous mode [ 30.818981][ T50] br1: port 2(veth2) entered blocking state [ 30.819745][ T50] br1: port 2(veth2) entered forwarding state [ 39.056292][ T322] GACT probability NOT on [ 42.801127][ C1] tc action pedit unable to extract header offset for header type (0x5) [ 42.801738][ C1] tc action pedit unable to extract header offset for header type (0x5) [ 43.313703][ C1] tc action pedit unable to extract header offset for header type (0x5) [ 45.872495][ C2] [ 45.872580][ C0] tc action pedit unable to extract header offset for header type (0x5) [ 45.872622][ C2] ======================================================== [ 45.872624][ C2] WARNING: possible irq lock inversion dependency detected [ 45.872626][ C2] 6.9.0-rc1-virtme #1 Not tainted [ 45.873582][ C2] -------------------------------------------------------- [ 45.873799][ C2] swapper/2/0 just changed the state of lock: [ 45.873977][ C2] ffff888007632c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.874359][ C2] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 45.874568][ C2] (&p->alloc_lock){+.+.}-{2:2} [ 45.874573][ C2] [ 45.874573][ C2] [ 45.874573][ C2] and interrupts could create inverse lock ordering between them. [ 45.874573][ C2] [ 45.875085][ C2] [ 45.875085][ C2] other info that might help us debug this: [ 45.875290][ C2] Chain exists of: [ 45.875290][ C2] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 45.875290][ C2] [ 45.875618][ C2] Possible interrupt unsafe locking scenario: [ 45.875618][ C2] [ 45.875827][ C2] CPU0 CPU1 [ 45.875976][ C2] ---- ---- [ 45.876123][ C2] lock(&p->alloc_lock); [ 45.876234][ C2] local_irq_disable(); [ 45.876422][ C2] lock(&br->lock); [ 45.876602][ C2] lock(lweventlist_lock); [ 45.876807][ C2] [ 45.876927][ C2] lock(&br->lock); [ 45.877045][ C2] [ 45.877045][ C2] *** DEADLOCK *** [ 45.877045][ C2] [ 45.877261][ C2] 1 lock held by swapper/2/0: [ 45.877403][ C2] #0: ffffc90000230b68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 45.877712][ C2] [ 45.877712][ C2] the shortest dependencies between 2nd lock and 1st lock: [ 45.877974][ C2] -> (&p->alloc_lock){+.+.}-{2:2} { [ 45.878126][ C2] HARDIRQ-ON-W at: [ 45.878242][ C2] __lock_acquire+0x797/0x1570 [ 45.878430][ C2] lock_acquire.part.0+0xeb/0x330 [ 45.878619][ C2] _raw_spin_lock+0x30/0x40 [ 45.878814][ C2] set_mems_allowed+0x1d/0x210 [ 45.879001][ C2] kernel_init_freeable+0x72/0x310 [ 45.879191][ C2] kernel_init+0x20/0x200 [ 45.879380][ C2] ret_from_fork+0x31/0x70 [ 45.879571][ C2] ret_from_fork_asm+0x1a/0x30 [ 45.879758][ C2] SOFTIRQ-ON-W at: [ 45.879865][ C2] __lock_acquire+0x797/0x1570 [ 45.880059][ C2] lock_acquire.part.0+0xeb/0x330 [ 45.880237][ C2] _raw_spin_lock+0x30/0x40 [ 45.880424][ C2] set_mems_allowed+0x1d/0x210 [ 45.880603][ C2] kernel_init_freeable+0x72/0x310 [ 45.880790][ C2] kernel_init+0x20/0x200 [ 45.880979][ C2] ret_from_fork+0x31/0x70 [ 45.881162][ C2] ret_from_fork_asm+0x1a/0x30 [ 45.881343][ C2] INITIAL USE at: [ 45.881454][ C2] __lock_acquire+0x797/0x1570 [ 45.881637][ C2] lock_acquire.part.0+0xeb/0x330 [ 45.881809][ C2] _raw_spin_lock+0x30/0x40 [ 45.881988][ C2] set_mems_allowed+0x1d/0x210 [ 45.882164][ C2] kernel_init_freeable+0x72/0x310 [ 45.882349][ C2] kernel_init+0x20/0x200 [ 45.882526][ C2] ret_from_fork+0x31/0x70 [ 45.882702][ C2] ret_from_fork_asm+0x1a/0x30 [ 45.882882][ C2] } [ 45.882956][ C2] ... key at: [] __key.387+0x0/0x40 [ 45.883182][ C2] ... acquired at: [ 45.883287][ C2] __lock_acquire+0xaf0/0x1570 [ 45.883473][ C2] lock_acquire.part.0+0xeb/0x330 [ 45.883622][ C2] _raw_spin_lock+0x30/0x40 [ 45.883763][ C2] __get_task_comm+0x27/0x70 [ 45.883902][ C2] ref_tracker_alloc+0x2ee/0x490 [ 45.884052][ C2] linkwatch_fire_event+0x196/0x200 [ 45.884202][ C2] veth_newlink+0x367/0x830 [veth] [ 45.884358][ C2] rtnl_newlink_create+0x341/0x850 [ 45.884500][ C2] __rtnl_newlink+0xac9/0xd80 [ 45.884638][ C2] rtnl_newlink+0x63/0xa0 [ 45.884783][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.884926][ C2] netlink_rcv_skb+0x130/0x360 [ 45.885069][ C2] netlink_unicast+0x449/0x710 [ 45.885214][ C2] netlink_sendmsg+0x723/0xbe0 [ 45.885359][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 45.885505][ C2] ___sys_sendmsg+0xee/0x170 [ 45.885652][ C2] __sys_sendmsg+0xcd/0x170 [ 45.885807][ C2] do_syscall_64+0xc6/0x1e0 [ 45.885957][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.886139][ C2] [ 45.886217][ C2] -> (lweventlist_lock){....}-{2:2} { [ 45.886366][ C2] INITIAL USE at: [ 45.886476][ C2] __lock_acquire+0x797/0x1570 [ 45.886652][ C2] lock_acquire.part.0+0xeb/0x330 [ 45.886837][ C2] _raw_spin_lock_irqsave+0x3f/0x60 [ 45.887019][ C2] linkwatch_sync_dev+0x29/0x1f0 [ 45.887195][ C2] rtnl_getlink+0x4c9/0x970 [ 45.887371][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.887579][ C2] netlink_rcv_skb+0x130/0x360 [ 45.887758][ C2] netlink_unicast+0x449/0x710 [ 45.887937][ C2] netlink_sendmsg+0x723/0xbe0 [ 45.888125][ C2] __sys_sendto+0x37d/0x410 [ 45.888307][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 45.888490][ C2] do_syscall_64+0xc6/0x1e0 [ 45.888673][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.888887][ C2] } [ 45.888967][ C2] ... key at: [] lweventlist_lock+0x18/0x60 [ 45.889185][ C2] ... acquired at: [ 45.889293][ C2] __lock_acquire+0xaf0/0x1570 [ 45.889439][ C2] lock_acquire.part.0+0xeb/0x330 [ 45.889579][ C2] _raw_spin_lock_irqsave+0x3f/0x60 [ 45.889726][ C2] linkwatch_fire_event+0x74/0x200 [ 45.889865][ C2] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 45.890085][ C2] br_set_mac_address+0x1f3/0x260 [bridge] [ 45.890306][ C2] dev_set_mac_address+0x28a/0x410 [ 45.890448][ C2] dev_set_mac_address_user+0x31/0x50 [ 45.890587][ C2] do_setlink+0x17b4/0x21e0 [ 45.890733][ C2] rtnl_setlink+0x1f7/0x310 [ 45.890871][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.891009][ C2] netlink_rcv_skb+0x130/0x360 [ 45.891152][ C2] netlink_unicast+0x449/0x710 [ 45.891293][ C2] netlink_sendmsg+0x723/0xbe0 [ 45.891431][ C2] __sys_sendto+0x37d/0x410 [ 45.891577][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 45.891726][ C2] do_syscall_64+0xc6/0x1e0 [ 45.891877][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.892049][ C2] [ 45.892118][ C2] -> (&br->lock){+.-.}-{2:2} { [ 45.892258][ C2] HARDIRQ-ON-W at: [ 45.892371][ C2] __lock_acquire+0x797/0x1570 [ 45.892549][ C2] lock_acquire.part.0+0xeb/0x330 [ 45.892729][ C2] _raw_spin_lock_bh+0x38/0x50 [ 45.892902][ C2] recalculate_group_addr+0x55/0x130 [bridge] [ 45.893174][ C2] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 45.893429][ C2] br_changelink+0x36c/0x1360 [bridge] [ 45.893644][ C2] br_dev_newlink+0xa5/0x100 [bridge] [ 45.893866][ C2] rtnl_newlink_create+0x341/0x850 [ 45.894051][ C2] __rtnl_newlink+0xac9/0xd80 [ 45.894231][ C2] rtnl_newlink+0x63/0xa0 [ 45.894432][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.894628][ C2] netlink_rcv_skb+0x130/0x360 [ 45.894812][ C2] netlink_unicast+0x449/0x710 [ 45.895002][ C2] netlink_sendmsg+0x723/0xbe0 [ 45.895189][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 45.895374][ C2] ___sys_sendmsg+0xee/0x170 [ 45.895565][ C2] __sys_sendmsg+0xcd/0x170 [ 45.895759][ C2] do_syscall_64+0xc6/0x1e0 [ 45.895946][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.896169][ C2] IN-SOFTIRQ-W at: [ 45.896283][ C2] __lock_acquire+0x797/0x1570 [ 45.896471][ C2] lock_acquire.part.0+0xeb/0x330 [ 45.896662][ C2] _raw_spin_lock+0x30/0x40 [ 45.896853][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.897120][ C2] call_timer_fn+0x13b/0x230 [ 45.897306][ C2] __run_timers+0x545/0x810 [ 45.897496][ C2] timer_expire_remote+0x9b/0xe0 [ 45.897674][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 45.897884][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 45.898063][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 45.898235][ C2] __do_softirq+0x1f8/0x5df [ 45.898407][ C2] irq_exit_rcu+0x97/0xc0 [ 45.898588][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 45.898803][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 45.899020][ C2] default_idle+0xf/0x20 [ 45.899199][ C2] default_idle_call+0x6d/0xb0 [ 45.899372][ C2] cpuidle_idle_call+0x1f4/0x280 [ 45.899554][ C2] do_idle+0xf9/0x160 [ 45.899699][ C2] cpu_startup_entry+0x54/0x60 [ 45.899880][ C2] start_secondary+0x21c/0x2b0 [ 45.900067][ C2] common_startup_64+0x12c/0x138 [ 45.900252][ C2] INITIAL USE at: [ 45.900357][ C2] __lock_acquire+0x797/0x1570 [ 45.900531][ C2] lock_acquire.part.0+0xeb/0x330 [ 45.900704][ C2] _raw_spin_lock_bh+0x38/0x50 [ 45.900885][ C2] recalculate_group_addr+0x55/0x130 [bridge] [ 45.901139][ C2] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 45.901401][ C2] br_changelink+0x36c/0x1360 [bridge] [ 45.901711][ C2] br_dev_newlink+0xa5/0x100 [bridge] [ 45.901933][ C2] rtnl_newlink_create+0x341/0x850 [ 45.902112][ C2] __rtnl_newlink+0xac9/0xd80 [ 45.902378][ C2] rtnl_newlink+0x63/0xa0 [ 45.902567][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.902752][ C2] netlink_rcv_skb+0x130/0x360 [ 45.902943][ C2] netlink_unicast+0x449/0x710 [ 45.903346][ C2] netlink_sendmsg+0x723/0xbe0 [ 45.903538][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 45.903726][ C2] ___sys_sendmsg+0xee/0x170 [ 45.903991][ C2] __sys_sendmsg+0xcd/0x170 [ 45.904186][ C2] do_syscall_64+0xc6/0x1e0 [ 45.904372][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.904686][ C2] } [ 45.904758][ C2] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 45.905051][ C2] ... acquired at: [ 45.905155][ C2] mark_lock+0x28d/0x3e0 [ 45.905312][ C2] mark_usage+0xd9/0x2a0 [ 45.905545][ C2] __lock_acquire+0x797/0x1570 [ 45.905697][ C2] lock_acquire.part.0+0xeb/0x330 [ 45.905842][ C2] _raw_spin_lock+0x30/0x40 [ 45.905982][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.906191][ C2] call_timer_fn+0x13b/0x230 [ 45.906329][ C2] __run_timers+0x545/0x810 [ 45.906474][ C2] timer_expire_remote+0x9b/0xe0 [ 45.906612][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 45.906752][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 45.906900][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 45.907041][ C2] __do_softirq+0x1f8/0x5df [ 45.907180][ C2] irq_exit_rcu+0x97/0xc0 [ 45.907397][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 45.907567][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 45.907750][ C2] default_idle+0xf/0x20 [ 45.907887][ C2] default_idle_call+0x6d/0xb0 [ 45.908110][ C2] cpuidle_idle_call+0x1f4/0x280 [ 45.908257][ C2] do_idle+0xf9/0x160 [ 45.908369][ C2] cpu_startup_entry+0x54/0x60 [ 45.908510][ C2] start_secondary+0x21c/0x2b0 [ 45.908736][ C2] common_startup_64+0x12c/0x138 [ 45.908876][ C2] [ 45.908945][ C2] [ 45.908945][ C2] stack backtrace: [ 45.909115][ C2] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 6.9.0-rc1-virtme #1 [ 45.909424][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 45.909756][ C2] Call Trace: [ 45.909864][ C2] [ 45.909949][ C2] dump_stack_lvl+0x82/0xd0 [ 45.910103][ C2] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 45.910282][ C2] ? common_startup_64+0x12c/0x138 [ 45.910428][ C2] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 45.910699][ C2] ? __pfx_usage_skip+0x10/0x10 [ 45.910933][ C2] ? __pfx_usage_match+0x10/0x10 [ 45.911167][ C2] ? arch_stack_walk+0x8c/0xf0 [ 45.911401][ C2] mark_lock_irq+0x4cd/0xa10 [ 45.911630][ C2] ? __pfx_mark_lock_irq+0x10/0x10 [ 45.912021][ C2] ? stack_trace_save+0x94/0xd0 [ 45.912255][ C2] ? add_chain_cache+0x248/0x8b0 [ 45.912489][ C2] ? save_trace+0x8f/0x5b0 [ 45.912724][ C2] mark_lock+0x28d/0x3e0 [ 45.912910][ C2] mark_usage+0xd9/0x2a0 [ 45.913265][ C2] __lock_acquire+0x797/0x1570 [ 45.913427][ C2] ? __lock_acquire+0xaf0/0x1570 [ 45.913610][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 45.913875][ C2] lock_acquire.part.0+0xeb/0x330 [ 45.914097][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.914339][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 45.914481][ C2] ? trace_lock_acquire+0x135/0x1c0 [ 45.914628][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.914928][ C2] ? lock_acquire+0x32/0xc0 [ 45.915069][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.915280][ C2] _raw_spin_lock+0x30/0x40 [ 45.915508][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.915721][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.915936][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 45.916182][ C2] call_timer_fn+0x13b/0x230 [ 45.916409][ C2] ? call_timer_fn+0xe8/0x230 [ 45.916548][ C2] ? call_timer_fn+0xe8/0x230 [ 45.916687][ C2] ? __pfx_call_timer_fn+0x10/0x10 [ 45.916824][ C2] ? mark_lock+0x38/0x3e0 [ 45.917015][ C2] __run_timers+0x545/0x810 [ 45.917154][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 45.917412][ C2] ? __pfx___run_timers+0x10/0x10 [ 45.917553][ C2] ? __lock_release+0x103/0x460 [ 45.917775][ C2] ? do_raw_spin_lock+0x131/0x270 [ 45.917914][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 45.918054][ C2] ? lock_acquire+0x32/0xc0 [ 45.918219][ C2] ? timer_expire_remote+0x93/0xe0 [ 45.918446][ C2] timer_expire_remote+0x9b/0xe0 [ 45.918590][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 45.918737][ C2] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10 [ 45.918909][ C2] ? timerqueue_del+0x68/0x120 [ 45.919055][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 45.919196][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 45.919336][ C2] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 45.919477][ C2] __do_softirq+0x1f8/0x5df [ 45.919614][ C2] irq_exit_rcu+0x97/0xc0 [ 45.919723][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 45.919874][ C2] [ 45.919950][ C2] [ 45.920021][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 45.920197][ C2] RIP: 0010:default_idle+0xf/0x20 [ 45.920435][ 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 [ 45.921024][ C2] RSP: 0018:ffffc9000015fdf8 EFLAGS: 00000246 [ 45.921209][ C2] RAX: 00000000000fd311 RBX: 1ffff9200002bfc1 RCX: ffffffffb610e9d5 [ 45.921420][ C2] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb3aaa4a4 [ 45.921712][ C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c2709c [ 45.921920][ C2] R10: ffff8880361384e3 R11: ffff88803613dc80 R12: 0000000000000000 [ 45.922146][ C2] R13: ffff888001b7c5c0 R14: dffffc0000000000 R15: 0000000000000000 [ 45.922456][ C2] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 45.922595][ C2] ? cpuidle_idle_call+0x1f4/0x280 [ 45.922734][ C2] default_idle_call+0x6d/0xb0 [ 45.922871][ C2] cpuidle_idle_call+0x1f4/0x280 [ 45.923027][ C2] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 45.923166][ C2] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 45.923305][ C2] do_idle+0xf9/0x160 [ 45.923416][ C2] cpu_startup_entry+0x54/0x60 [ 45.923553][ C2] start_secondary+0x21c/0x2b0 [ 45.923690][ C2] ? __pfx_start_secondary+0x10/0x10 [ 45.923829][ C2] common_startup_64+0x12c/0x138 [ 45.923971][ C2] [ 59.696681][ C1] tc action pedit unable to extract header offset for header type (0x4) [ 67.868267][ T683] br1: port 2(veth2) entered disabled state [ 67.991229][ T684] veth2: left allmulticast mode [ 67.991945][ T684] veth2: left promiscuous mode [ 67.992227][ T684] br1: port 2(veth2) entered disabled state [ 68.110795][ T685] br1: port 1(veth1) entered disabled state [ 68.209788][ T686] veth1: left allmulticast mode [ 68.209972][ T686] veth1: left promiscuous mode [ 68.210249][ T686] br1: port 1(veth1) entered disabled state