[ 29.298885][ T286] br0: port 1(veth1) entered blocking state [ 29.299492][ T286] br0: port 1(veth1) entered disabled state [ 29.300000][ T286] veth1: entered allmulticast mode [ 29.304924][ T286] veth1: entered promiscuous mode [ 29.441295][ T288] br0: port 2(veth2) entered blocking state [ 29.441549][ T288] br0: port 2(veth2) entered disabled state [ 29.441835][ T288] veth2: entered allmulticast mode [ 29.446257][ T288] veth2: entered promiscuous mode [ 29.747788][ T7] br0: port 1(veth1) entered blocking state [ 29.748341][ T7] br0: port 1(veth1) entered forwarding state [ 29.861621][ T49] br0: port 2(veth2) entered blocking state [ 29.862080][ T49] br0: port 2(veth2) entered forwarding state [ 38.917631][ T318] veth0: entered promiscuous mode [ 39.507953][ T324] GACT probability NOT on [ 44.842305][ C0] [ 44.842515][ C0] ======================================================== [ 44.842771][ C0] WARNING: possible irq lock inversion dependency detected [ 44.843039][ C0] 6.9.0-rc1-virtme #1 Not tainted [ 44.843203][ C0] -------------------------------------------------------- [ 44.843483][ C0] swapper/0/0 just changed the state of lock: [ 44.843679][ C0] ffff888005332c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.844091][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 44.844312][ C0] (&p->alloc_lock){+.+.}-{2:2} [ 44.844316][ C0] [ 44.844316][ C0] [ 44.844316][ C0] and interrupts could create inverse lock ordering between them. [ 44.844316][ C0] [ 44.844870][ C0] [ 44.844870][ C0] other info that might help us debug this: [ 44.845093][ C0] Chain exists of: [ 44.845093][ C0] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 44.845093][ C0] [ 44.845427][ C0] Possible interrupt unsafe locking scenario: [ 44.845427][ C0] [ 44.845644][ C0] CPU0 CPU1 [ 44.845789][ C0] ---- ---- [ 44.845954][ C0] lock(&p->alloc_lock); [ 44.846072][ C0] local_irq_disable(); [ 44.846253][ C0] lock(&br->lock); [ 44.846441][ C0] lock(lweventlist_lock); [ 44.846624][ C0] [ 44.846737][ C0] lock(&br->lock); [ 44.846857][ C0] [ 44.846857][ C0] *** DEADLOCK *** [ 44.846857][ C0] [ 44.847092][ C0] 1 lock held by swapper/0/0: [ 44.847246][ C0] #0: ffffc90000007d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 44.847556][ C0] [ 44.847556][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 44.847812][ C0] -> (&p->alloc_lock){+.+.}-{2:2} { [ 44.847964][ C0] HARDIRQ-ON-W at: [ 44.848082][ C0] __lock_acquire+0x797/0x1570 [ 44.848281][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.848469][ C0] _raw_spin_lock+0x30/0x40 [ 44.848668][ C0] set_mems_allowed+0x1d/0x210 [ 44.848861][ C0] kernel_init_freeable+0x72/0x310 [ 44.849052][ C0] kernel_init+0x20/0x200 [ 44.849247][ C0] ret_from_fork+0x31/0x70 [ 44.849451][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.849641][ C0] SOFTIRQ-ON-W at: [ 44.849762][ C0] __lock_acquire+0x797/0x1570 [ 44.849959][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.850163][ C0] _raw_spin_lock+0x30/0x40 [ 44.850355][ C0] set_mems_allowed+0x1d/0x210 [ 44.850550][ C0] kernel_init_freeable+0x72/0x310 [ 44.850746][ C0] kernel_init+0x20/0x200 [ 44.850941][ C0] ret_from_fork+0x31/0x70 [ 44.851141][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.851341][ C0] INITIAL USE at: [ 44.851455][ C0] __lock_acquire+0x797/0x1570 [ 44.851648][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.851840][ C0] _raw_spin_lock+0x30/0x40 [ 44.852090][ C0] set_mems_allowed+0x1d/0x210 [ 44.852299][ C0] kernel_init_freeable+0x72/0x310 [ 44.852500][ C0] kernel_init+0x20/0x200 [ 44.852701][ C0] ret_from_fork+0x31/0x70 [ 44.852916][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.853125][ C0] } [ 44.853208][ C0] ... key at: [] __key.387+0x0/0x40 [ 44.853487][ C0] ... acquired at: [ 44.853605][ C0] __lock_acquire+0xaf0/0x1570 [ 44.853760][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.853911][ C0] _raw_spin_lock+0x30/0x40 [ 44.854061][ C0] __get_task_comm+0x27/0x70 [ 44.854226][ C0] ref_tracker_alloc+0x2ee/0x490 [ 44.854376][ C0] linkwatch_fire_event+0x196/0x200 [ 44.854534][ C0] veth_newlink+0x367/0x830 [veth] [ 44.854697][ C0] rtnl_newlink_create+0x341/0x850 [ 44.854848][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.855010][ C0] rtnl_newlink+0x63/0xa0 [ 44.855167][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.855315][ C0] netlink_rcv_skb+0x130/0x360 [ 44.855478][ C0] netlink_unicast+0x449/0x710 [ 44.855631][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.855791][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.855947][ C0] ___sys_sendmsg+0xee/0x170 [ 44.856104][ C0] __sys_sendmsg+0xcd/0x170 [ 44.856261][ C0] do_syscall_64+0xc6/0x1e0 [ 44.856416][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.856612][ C0] [ 44.856693][ C0] -> (lweventlist_lock){....}-{2:2} { [ 44.856866][ C0] INITIAL USE at: [ 44.856985][ C0] __lock_acquire+0x797/0x1570 [ 44.857176][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.857375][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.857569][ C0] linkwatch_sync_dev+0x29/0x1f0 [ 44.857756][ C0] rtnl_getlink+0x4c9/0x970 [ 44.857953][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.858148][ C0] netlink_rcv_skb+0x130/0x360 [ 44.858372][ C0] netlink_unicast+0x449/0x710 [ 44.858568][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.858755][ C0] __sys_sendto+0x37d/0x410 [ 44.858960][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.859157][ C0] do_syscall_64+0xc6/0x1e0 [ 44.859358][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.859603][ C0] } [ 44.859683][ C0] ... key at: [] lweventlist_lock+0x18/0x60 [ 44.859935][ C0] ... acquired at: [ 44.860103][ C0] __lock_acquire+0xaf0/0x1570 [ 44.860258][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.860412][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.860560][ C0] linkwatch_fire_event+0x74/0x200 [ 44.860710][ C0] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 44.860940][ C0] br_set_mac_address+0x1f3/0x260 [bridge] [ 44.861155][ C0] dev_set_mac_address+0x28a/0x410 [ 44.861305][ C0] dev_set_mac_address_user+0x31/0x50 [ 44.861453][ C0] do_setlink+0x17b4/0x21e0 [ 44.861604][ C0] rtnl_setlink+0x1f7/0x310 [ 44.861753][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.861899][ C0] netlink_rcv_skb+0x130/0x360 [ 44.862045][ C0] netlink_unicast+0x449/0x710 [ 44.862192][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.862343][ C0] __sys_sendto+0x37d/0x410 [ 44.862490][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.862637][ C0] do_syscall_64+0xc6/0x1e0 [ 44.862788][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.862982][ C0] [ 44.863059][ C0] -> (&br->lock){+.-.}-{2:2} { [ 44.863213][ C0] HARDIRQ-ON-W at: [ 44.863341][ C0] __lock_acquire+0x797/0x1570 [ 44.863536][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.863723][ C0] _raw_spin_lock_bh+0x38/0x50 [ 44.863911][ C0] br_set_ageing_time+0x2d/0xf0 [bridge] [ 44.864170][ C0] br_changelink+0x231/0x1360 [bridge] [ 44.864406][ C0] br_dev_newlink+0xa5/0x100 [bridge] [ 44.864629][ C0] rtnl_newlink_create+0x341/0x850 [ 44.864814][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.865002][ C0] rtnl_newlink+0x63/0xa0 [ 44.865189][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.865374][ C0] netlink_rcv_skb+0x130/0x360 [ 44.865572][ C0] netlink_unicast+0x449/0x710 [ 44.865763][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.865946][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.866132][ C0] ___sys_sendmsg+0xee/0x170 [ 44.866324][ C0] __sys_sendmsg+0xcd/0x170 [ 44.866511][ C0] do_syscall_64+0xc6/0x1e0 [ 44.866694][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.866925][ C0] IN-SOFTIRQ-W at: [ 44.867036][ C0] __lock_acquire+0x797/0x1570 [ 44.867222][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.867405][ C0] _raw_spin_lock+0x30/0x40 [ 44.867595][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.867852][ C0] call_timer_fn+0x13b/0x230 [ 44.868053][ C0] __run_timers+0x545/0x810 [ 44.868249][ C0] run_timer_softirq+0xe8/0x1b0 [ 44.868433][ C0] __do_softirq+0x1f8/0x5df [ 44.868620][ C0] irq_exit_rcu+0x97/0xc0 [ 44.868811][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.869041][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.869271][ C0] default_idle+0xf/0x20 [ 44.869460][ C0] default_idle_call+0x6d/0xb0 [ 44.869647][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.869863][ C0] do_idle+0xf9/0x160 [ 44.870012][ C0] cpu_startup_entry+0x54/0x60 [ 44.870200][ C0] rest_init+0x14f/0x260 [ 44.870383][ C0] start_kernel+0x318/0x3d0 [ 44.870577][ C0] x86_64_start_reservations+0x18/0x30 [ 44.870767][ C0] x86_64_start_kernel+0xba/0x110 [ 44.870953][ C0] common_startup_64+0x12c/0x138 [ 44.871140][ C0] INITIAL USE at: [ 44.871250][ C0] __lock_acquire+0x797/0x1570 [ 44.871439][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.871629][ C0] _raw_spin_lock_bh+0x38/0x50 [ 44.871819][ C0] br_set_ageing_time+0x2d/0xf0 [bridge] [ 44.872082][ C0] br_changelink+0x231/0x1360 [bridge] [ 44.872303][ C0] br_dev_newlink+0xa5/0x100 [bridge] [ 44.872524][ C0] rtnl_newlink_create+0x341/0x850 [ 44.872708][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.872898][ C0] rtnl_newlink+0x63/0xa0 [ 44.873082][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.873274][ C0] netlink_rcv_skb+0x130/0x360 [ 44.873475][ C0] netlink_unicast+0x449/0x710 [ 44.873660][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.873843][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.874029][ C0] ___sys_sendmsg+0xee/0x170 [ 44.874221][ C0] __sys_sendmsg+0xcd/0x170 [ 44.874408][ C0] do_syscall_64+0xc6/0x1e0 [ 44.874594][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.874919][ C0] } [ 44.874995][ C0] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 44.875288][ C0] ... acquired at: [ 44.875397][ C0] mark_lock+0x28d/0x3e0 [ 44.875638][ C0] mark_usage+0xd9/0x2a0 [ 44.875787][ C0] __lock_acquire+0x797/0x1570 [ 44.875940][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.876087][ C0] _raw_spin_lock+0x30/0x40 [ 44.876324][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.876545][ C0] call_timer_fn+0x13b/0x230 [ 44.876692][ C0] __run_timers+0x545/0x810 [ 44.876837][ C0] run_timer_softirq+0xe8/0x1b0 [ 44.877162][ C0] __do_softirq+0x1f8/0x5df [ 44.877317][ C0] irq_exit_rcu+0x97/0xc0 [ 44.877466][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.877647][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.877917][ C0] default_idle+0xf/0x20 [ 44.878068][ C0] default_idle_call+0x6d/0xb0 [ 44.878238][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.878383][ C0] do_idle+0xf9/0x160 [ 44.878494][ C0] cpu_startup_entry+0x54/0x60 [ 44.878741][ C0] rest_init+0x14f/0x260 [ 44.878888][ C0] start_kernel+0x318/0x3d0 [ 44.879035][ C0] x86_64_start_reservations+0x18/0x30 [ 44.879182][ C0] x86_64_start_kernel+0xba/0x110 [ 44.879417][ C0] common_startup_64+0x12c/0x138 [ 44.879565][ C0] [ 44.879655][ C0] [ 44.879655][ C0] stack backtrace: [ 44.879838][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.9.0-rc1-virtme #1 [ 44.880158][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.880485][ C0] Call Trace: [ 44.880598][ C0] [ 44.880675][ C0] dump_stack_lvl+0x82/0xd0 [ 44.880919][ C0] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 44.881101][ C0] ? common_startup_64+0x12c/0x138 [ 44.881250][ C0] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 44.881529][ C0] ? __pfx_usage_skip+0x10/0x10 [ 44.881676][ C0] ? __pfx_usage_match+0x10/0x10 [ 44.881821][ C0] ? arch_stack_walk+0x8c/0xf0 [ 44.881970][ C0] mark_lock_irq+0x4cd/0xa10 [ 44.882118][ C0] ? __pfx_mark_lock_irq+0x10/0x10 [ 44.882353][ C0] ? stack_trace_save+0x94/0xd0 [ 44.882502][ C0] ? add_chain_cache+0x248/0x8b0 [ 44.882650][ C0] ? save_trace+0x8f/0x5b0 [ 44.882801][ C0] mark_lock+0x28d/0x3e0 [ 44.883002][ C0] mark_usage+0xd9/0x2a0 [ 44.883113][ C0] __lock_acquire+0x797/0x1570 [ 44.883259][ C0] ? __lock_acquire+0xaf0/0x1570 [ 44.883521][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.883868][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.884015][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.884234][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 44.884388][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 44.884626][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.884848][ C0] ? lock_acquire+0x32/0xc0 [ 44.884995][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.885215][ C0] _raw_spin_lock+0x30/0x40 [ 44.885450][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.885668][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.885888][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.886238][ C0] call_timer_fn+0x13b/0x230 [ 44.886390][ C0] ? call_timer_fn+0xe8/0x230 [ 44.886536][ C0] ? call_timer_fn+0xe8/0x230 [ 44.886683][ C0] ? __pfx_call_timer_fn+0x10/0x10 [ 44.886831][ C0] ? mark_lock+0x38/0x3e0 [ 44.886949][ C0] __run_timers+0x545/0x810 [ 44.887095][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.887352][ C0] ? __pfx___run_timers+0x10/0x10 [ 44.887590][ C0] ? do_raw_spin_lock+0x131/0x270 [ 44.887738][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 44.887885][ C0] ? lock_acquire+0x32/0xc0 [ 44.888030][ C0] ? run_timer_softirq+0xe0/0x1b0 [ 44.888178][ C0] run_timer_softirq+0xe8/0x1b0 [ 44.888415][ C0] __do_softirq+0x1f8/0x5df [ 44.888592][ C0] irq_exit_rcu+0x97/0xc0 [ 44.888706][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.888860][ C0] [ 44.888938][ C0] [ 44.889192][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.889377][ C0] RIP: 0010:default_idle+0xf/0x20 [ 44.889533][ C0] 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 [ 44.890165][ C0] RSP: 0018:ffffffff98407e00 EFLAGS: 00000246 [ 44.890420][ C0] RAX: 000000000009e7d1 RBX: 1ffffffff3080fc2 RCX: ffffffff9750e9d5 [ 44.890738][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff94eaa4a4 [ 44.890958][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0709c [ 44.891180][ C0] R10: ffff8880360384e3 R11: ffff88803602d9b0 R12: 0000000000000000 [ 44.891499][ C0] R13: ffffffff9841d000 R14: dffffc0000000000 R15: 0000000000014770 [ 44.891721][ C0] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 44.891869][ C0] ? cpuidle_idle_call+0x1f4/0x280 [ 44.892018][ C0] default_idle_call+0x6d/0xb0 [ 44.892256][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.892403][ C0] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 44.892550][ C0] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 44.892700][ C0] do_idle+0xf9/0x160 [ 44.892901][ C0] cpu_startup_entry+0x54/0x60 [ 44.893047][ C0] rest_init+0x14f/0x260 [ 44.893160][ C0] start_kernel+0x318/0x3d0 [ 44.893321][ C0] x86_64_start_reservations+0x18/0x30 [ 44.893470][ C0] x86_64_start_kernel+0xba/0x110 [ 44.893708][ C0] common_startup_64+0x12c/0x138 [ 44.893858][ C0] [ 66.025734][ T352] veth0: left promiscuous mode [ 66.335469][ T356] veth3: entered promiscuous mode [ 68.226795][ T365] veth3: left promiscuous mode [ 68.430224][ T367] veth3: entered promiscuous mode [ 70.367888][ T376] veth3: left promiscuous mode [ 70.565906][ T379] veth3: entered promiscuous mode [ 72.480840][ T388] veth3: left promiscuous mode [ 72.674233][ T390] veth3: entered promiscuous mode [ 74.550660][ T399] veth3: left promiscuous mode [ 98.460748][ T429] br0: port 2(veth2) entered disabled state [ 98.563070][ T430] br0: port 1(veth1) entered disabled state [ 98.695041][ T431] veth2: left allmulticast mode [ 98.695507][ T431] veth2: left promiscuous mode [ 98.695784][ T431] br0: port 2(veth2) entered disabled state [ 98.696802][ T431] veth1: left allmulticast mode [ 98.696977][ T431] veth1: left promiscuous mode [ 98.697243][ T431] br0: port 1(veth1) entered disabled state