[ 27.990929][ T287] br0: port 1(veth1) entered blocking state [ 27.991320][ T287] br0: port 1(veth1) entered disabled state [ 27.991664][ T287] veth1: entered allmulticast mode [ 27.993766][ T287] veth1: entered promiscuous mode [ 28.135026][ T289] br0: port 2(veth2) entered blocking state [ 28.135366][ T289] br0: port 2(veth2) entered disabled state [ 28.136535][ T289] veth2: entered allmulticast mode [ 28.138507][ T289] veth2: entered promiscuous mode [ 28.396624][ T50] br0: port 1(veth1) entered blocking state [ 28.397046][ T50] br0: port 1(veth1) entered forwarding state [ 28.526232][ T50] br0: port 2(veth2) entered blocking state [ 28.526503][ T50] br0: port 2(veth2) entered forwarding state [ 37.510280][ T319] veth0: entered promiscuous mode [ 38.062131][ T325] GACT probability NOT on [ 43.845581][ C1] [ 43.845745][ C1] ======================================================== [ 43.845945][ C1] WARNING: possible irq lock inversion dependency detected [ 43.846140][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 43.846280][ C1] -------------------------------------------------------- [ 43.846495][ C1] swapper/1/0 just changed the state of lock: [ 43.846668][ C1] ffff888008a32c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.847025][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 43.847218][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 43.847222][ C1] [ 43.847222][ C1] [ 43.847222][ C1] and interrupts could create inverse lock ordering between them. [ 43.847222][ C1] [ 43.847724][ C1] [ 43.847724][ C1] other info that might help us debug this: [ 43.847924][ C1] Chain exists of: [ 43.847924][ C1] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 43.847924][ C1] [ 43.848233][ C1] Possible interrupt unsafe locking scenario: [ 43.848233][ C1] [ 43.848433][ C1] CPU0 CPU1 [ 43.848570][ C1] ---- ---- [ 43.848712][ C1] lock(&p->alloc_lock); [ 43.848813][ C1] local_irq_disable(); [ 43.848981][ C1] lock(&br->lock); [ 43.849150][ C1] lock(lweventlist_lock); [ 43.849315][ C1] [ 43.849421][ C1] lock(&br->lock); [ 43.849528][ C1] [ 43.849528][ C1] *** DEADLOCK *** [ 43.849528][ C1] [ 43.849729][ C1] 1 lock held by swapper/1/0: [ 43.849868][ C1] #0: ffffc900001d8d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 43.850142][ C1] [ 43.850142][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 43.850369][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 43.850506][ C1] HARDIRQ-ON-W at: [ 43.850620][ C1] __lock_acquire+0x797/0x1570 [ 43.850793][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.850970][ C1] _raw_spin_lock+0x30/0x40 [ 43.851136][ C1] set_mems_allowed+0x1d/0x210 [ 43.851305][ C1] kernel_init_freeable+0x72/0x310 [ 43.851471][ C1] kernel_init+0x20/0x200 [ 43.851642][ C1] ret_from_fork+0x31/0x70 [ 43.851808][ C1] ret_from_fork_asm+0x1a/0x30 [ 43.851974][ C1] SOFTIRQ-ON-W at: [ 43.852074][ C1] __lock_acquire+0x797/0x1570 [ 43.852239][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.852404][ C1] _raw_spin_lock+0x30/0x40 [ 43.852593][ C1] set_mems_allowed+0x1d/0x210 [ 43.852758][ C1] kernel_init_freeable+0x72/0x310 [ 43.852922][ C1] kernel_init+0x20/0x200 [ 43.853088][ C1] ret_from_fork+0x31/0x70 [ 43.853253][ C1] ret_from_fork_asm+0x1a/0x30 [ 43.853421][ C1] INITIAL USE at: [ 43.853525][ C1] __lock_acquire+0x797/0x1570 [ 43.853703][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.853869][ C1] _raw_spin_lock+0x30/0x40 [ 43.854037][ C1] set_mems_allowed+0x1d/0x210 [ 43.854204][ C1] kernel_init_freeable+0x72/0x310 [ 43.854370][ C1] kernel_init+0x20/0x200 [ 43.854540][ C1] ret_from_fork+0x31/0x70 [ 43.854705][ C1] ret_from_fork_asm+0x1a/0x30 [ 43.854871][ C1] } [ 43.854940][ C1] ... key at: [] __key.387+0x0/0x40 [ 43.855140][ C1] ... acquired at: [ 43.855244][ C1] __lock_acquire+0xaf0/0x1570 [ 43.855381][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.855512][ C1] _raw_spin_lock+0x30/0x40 [ 43.855650][ C1] __get_task_comm+0x27/0x70 [ 43.855790][ C1] ref_tracker_alloc+0x2ee/0x490 [ 43.855933][ C1] linkwatch_fire_event+0x196/0x200 [ 43.856067][ C1] veth_newlink+0x367/0x830 [veth] [ 43.856215][ C1] rtnl_newlink_create+0x341/0x850 [ 43.856347][ C1] __rtnl_newlink+0xac9/0xd80 [ 43.856486][ C1] rtnl_newlink+0x63/0xa0 [ 43.856617][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.856755][ C1] netlink_rcv_skb+0x130/0x360 [ 43.856889][ C1] netlink_unicast+0x449/0x710 [ 43.857032][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.857165][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 43.857297][ C1] ___sys_sendmsg+0xee/0x170 [ 43.857429][ C1] __sys_sendmsg+0xcd/0x170 [ 43.857562][ C1] do_syscall_64+0xc6/0x1e0 [ 43.857703][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.857869][ C1] [ 43.857942][ C1] -> (lweventlist_lock){....}-{2:2} { [ 43.858078][ C1] INITIAL USE at: [ 43.858178][ C1] __lock_acquire+0x797/0x1570 [ 43.858347][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.858513][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 43.858680][ C1] linkwatch_sync_dev+0x29/0x1f0 [ 43.858861][ C1] rtnl_getlink+0x4c9/0x970 [ 43.859033][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.859211][ C1] netlink_rcv_skb+0x130/0x360 [ 43.859378][ C1] netlink_unicast+0x449/0x710 [ 43.859544][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.859711][ C1] __sys_sendto+0x37d/0x410 [ 43.859887][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 43.860060][ C1] do_syscall_64+0xc6/0x1e0 [ 43.860226][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.860423][ C1] } [ 43.860490][ C1] ... key at: [] lweventlist_lock+0x18/0x60 [ 43.860687][ C1] ... acquired at: [ 43.860791][ C1] __lock_acquire+0xaf0/0x1570 [ 43.860939][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.861078][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 43.861212][ C1] linkwatch_fire_event+0x74/0x200 [ 43.861344][ C1] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 43.861551][ C1] br_set_mac_address+0x1f3/0x260 [bridge] [ 43.861767][ C1] dev_set_mac_address+0x28a/0x410 [ 43.861903][ C1] dev_set_mac_address_user+0x31/0x50 [ 43.862041][ C1] do_setlink+0x17b4/0x21e0 [ 43.862172][ C1] rtnl_setlink+0x1f7/0x310 [ 43.862303][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.862436][ C1] netlink_rcv_skb+0x130/0x360 [ 43.862568][ C1] netlink_unicast+0x449/0x710 [ 43.862704][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.862835][ C1] __sys_sendto+0x37d/0x410 [ 43.862972][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 43.863105][ C1] do_syscall_64+0xc6/0x1e0 [ 43.863245][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.863408][ C1] [ 43.863485][ C1] -> (&br->lock){+.-.}-{2:2} { [ 43.863623][ C1] HARDIRQ-ON-W at: [ 43.863723][ C1] __lock_acquire+0x797/0x1570 [ 43.863894][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.864063][ C1] _raw_spin_lock_bh+0x38/0x50 [ 43.864229][ C1] br_set_ageing_time+0x2d/0xf0 [bridge] [ 43.864471][ C1] br_changelink+0x231/0x1360 [bridge] [ 43.864682][ C1] br_dev_newlink+0xa5/0x100 [bridge] [ 43.864885][ C1] rtnl_newlink_create+0x341/0x850 [ 43.865048][ C1] __rtnl_newlink+0xac9/0xd80 [ 43.865225][ C1] rtnl_newlink+0x63/0xa0 [ 43.865399][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.865573][ C1] netlink_rcv_skb+0x130/0x360 [ 43.865741][ C1] netlink_unicast+0x449/0x710 [ 43.865909][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.866076][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 43.866246][ C1] ___sys_sendmsg+0xee/0x170 [ 43.866420][ C1] __sys_sendmsg+0xcd/0x170 [ 43.866602][ C1] do_syscall_64+0xc6/0x1e0 [ 43.866776][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.866974][ C1] IN-SOFTIRQ-W at: [ 43.867081][ C1] __lock_acquire+0x797/0x1570 [ 43.867247][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.867419][ C1] _raw_spin_lock+0x30/0x40 [ 43.867585][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.867830][ C1] call_timer_fn+0x13b/0x230 [ 43.867999][ C1] __run_timers+0x545/0x810 [ 43.868173][ C1] run_timer_softirq+0xe8/0x1b0 [ 43.868340][ C1] __do_softirq+0x1f8/0x5df [ 43.868511][ C1] irq_exit_rcu+0x97/0xc0 [ 43.868678][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.868877][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.869078][ C1] default_idle+0xf/0x20 [ 43.869242][ C1] default_idle_call+0x6d/0xb0 [ 43.869410][ C1] cpuidle_idle_call+0x1f4/0x280 [ 43.869574][ C1] do_idle+0xf9/0x160 [ 43.869708][ C1] cpu_startup_entry+0x54/0x60 [ 43.869871][ C1] start_secondary+0x21c/0x2b0 [ 43.870043][ C1] common_startup_64+0x12c/0x138 [ 43.870208][ C1] INITIAL USE at: [ 43.870309][ C1] __lock_acquire+0x797/0x1570 [ 43.870473][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.870640][ C1] _raw_spin_lock_bh+0x38/0x50 [ 43.870813][ C1] br_set_ageing_time+0x2d/0xf0 [bridge] [ 43.871049][ C1] br_changelink+0x231/0x1360 [bridge] [ 43.871259][ C1] br_dev_newlink+0xa5/0x100 [bridge] [ 43.871460][ C1] rtnl_newlink_create+0x341/0x850 [ 43.871625][ C1] __rtnl_newlink+0xac9/0xd80 [ 43.871792][ C1] rtnl_newlink+0x63/0xa0 [ 43.871958][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.872122][ C1] netlink_rcv_skb+0x130/0x360 [ 43.872292][ C1] netlink_unicast+0x449/0x710 [ 43.872461][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.872627][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 43.872791][ C1] ___sys_sendmsg+0xee/0x170 [ 43.872962][ C1] __sys_sendmsg+0xcd/0x170 [ 43.873129][ C1] do_syscall_64+0xc6/0x1e0 [ 43.873295][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.873502][ C1] } [ 43.873569][ C1] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 43.873833][ C1] ... acquired at: [ 43.873930][ C1] mark_lock+0x28d/0x3e0 [ 43.874075][ C1] mark_usage+0xd9/0x2a0 [ 43.874304][ C1] __lock_acquire+0x797/0x1570 [ 43.874439][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.874580][ C1] _raw_spin_lock+0x30/0x40 [ 43.874713][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.874990][ C1] call_timer_fn+0x13b/0x230 [ 43.875121][ C1] __run_timers+0x545/0x810 [ 43.875256][ C1] run_timer_softirq+0xe8/0x1b0 [ 43.875392][ C1] __do_softirq+0x1f8/0x5df [ 43.875605][ C1] irq_exit_rcu+0x97/0xc0 [ 43.875745][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.875908][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.876075][ C1] default_idle+0xf/0x20 [ 43.876282][ C1] default_idle_call+0x6d/0xb0 [ 43.876413][ C1] cpuidle_idle_call+0x1f4/0x280 [ 43.876545][ C1] do_idle+0xf9/0x160 [ 43.876644][ C1] cpu_startup_entry+0x54/0x60 [ 43.876851][ C1] start_secondary+0x21c/0x2b0 [ 43.876982][ C1] common_startup_64+0x12c/0x138 [ 43.877114][ C1] [ 43.877192][ C1] [ 43.877192][ C1] stack backtrace: [ 43.877363][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.9.0-rc1-virtme #1 [ 43.877638][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 43.877934][ C1] Call Trace: [ 43.878035][ C1] [ 43.878182][ C1] dump_stack_lvl+0x82/0xd0 [ 43.878318][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 43.878487][ C1] ? common_startup_64+0x12c/0x138 [ 43.878626][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 43.878868][ C1] ? __pfx_usage_skip+0x10/0x10 [ 43.878998][ C1] ? __pfx_usage_match+0x10/0x10 [ 43.879128][ C1] ? arch_stack_walk+0x8c/0xf0 [ 43.879260][ C1] mark_lock_irq+0x4cd/0xa10 [ 43.879479][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 43.879611][ C1] ? stack_trace_save+0x94/0xd0 [ 43.879763][ C1] ? add_chain_cache+0x248/0x8b0 [ 43.879897][ C1] ? save_trace+0x8f/0x5b0 [ 43.880194][ C1] mark_lock+0x28d/0x3e0 [ 43.880295][ C1] mark_usage+0xd9/0x2a0 [ 43.880395][ C1] __lock_acquire+0x797/0x1570 [ 43.880528][ C1] ? __lock_acquire+0xaf0/0x1570 [ 43.880663][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.880984][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.881118][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.881325][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 43.881459][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 43.881667][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.881865][ C1] ? lock_acquire+0x32/0xc0 [ 43.881997][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.882276][ C1] _raw_spin_lock+0x30/0x40 [ 43.882415][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.882620][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.882821][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.883131][ C1] call_timer_fn+0x13b/0x230 [ 43.883267][ C1] ? call_timer_fn+0xe8/0x230 [ 43.883404][ C1] ? call_timer_fn+0xe8/0x230 [ 43.883534][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 43.883751][ C1] ? mark_lock+0x38/0x3e0 [ 43.883856][ C1] __run_timers+0x545/0x810 [ 43.883992][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.884232][ C1] ? __pfx___run_timers+0x10/0x10 [ 43.884439][ C1] ? do_raw_spin_lock+0x131/0x270 [ 43.884575][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 43.884708][ C1] ? lock_acquire+0x32/0xc0 [ 43.884838][ C1] ? run_timer_softirq+0xe0/0x1b0 [ 43.885051][ C1] run_timer_softirq+0xe8/0x1b0 [ 43.885189][ C1] __do_softirq+0x1f8/0x5df [ 43.885322][ C1] irq_exit_rcu+0x97/0xc0 [ 43.885422][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.885553][ C1] [ 43.885697][ C1] [ 43.885763][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.885928][ C1] RIP: 0010:default_idle+0xf/0x20 [ 43.886067][ C1] 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 93 20 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 [ 43.886618][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000246 [ 43.886785][ C1] RAX: 0000000000087f71 RBX: 1ffff92000029fc1 RCX: ffffffffa750f9e5 [ 43.887058][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa4eaa4a4 [ 43.887252][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c1709c [ 43.887453][ C1] R10: ffff8880360b84e3 R11: ffff8880360ad9b0 R12: 0000000000000000 [ 43.887728][ C1] R13: ffff888001b7a300 R14: dffffc0000000000 R15: 0000000000000000 [ 43.887924][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 43.888055][ C1] ? cpuidle_idle_call+0x1f4/0x280 [ 43.888263][ C1] default_idle_call+0x6d/0xb0 [ 43.888394][ C1] cpuidle_idle_call+0x1f4/0x280 [ 43.888528][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 43.888659][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 43.888868][ C1] do_idle+0xf9/0x160 [ 43.888968][ C1] cpu_startup_entry+0x54/0x60 [ 43.889099][ C1] start_secondary+0x21c/0x2b0 [ 43.889231][ C1] ? __pfx_start_secondary+0x10/0x10 [ 43.889365][ C1] common_startup_64+0x12c/0x138 [ 43.889575][ C1] [ 64.448823][ T353] veth0: left promiscuous mode [ 64.734564][ T357] veth3: entered promiscuous mode [ 66.517324][ T366] veth3: left promiscuous mode [ 66.707583][ T368] veth3: entered promiscuous mode [ 68.530416][ T377] veth3: left promiscuous mode [ 68.735703][ T380] veth3: entered promiscuous mode [ 70.529621][ T389] veth3: left promiscuous mode [ 70.718019][ T391] veth3: entered promiscuous mode [ 72.534566][ T400] veth3: left promiscuous mode [ 96.332787][ T430] br0: port 2(veth2) entered disabled state [ 96.446639][ T431] br0: port 1(veth1) entered disabled state [ 96.556266][ T432] veth2: left allmulticast mode [ 96.556494][ T432] veth2: left promiscuous mode [ 96.556763][ T432] br0: port 2(veth2) entered disabled state [ 96.557766][ T432] veth1: left allmulticast mode [ 96.557928][ T432] veth1: left promiscuous mode [ 96.558176][ T432] br0: port 1(veth1) entered disabled state