[ 26.738626][ T282] 8021q: 802.1Q VLAN Support v1.8 [ 30.548277][ T324] GACT probability NOT on [ 31.921897][ T340] br10: port 1(veth1.10) entered blocking state [ 31.922276][ T340] br10: port 1(veth1.10) entered disabled state [ 31.922583][ T340] veth1.10: entered allmulticast mode [ 31.922739][ T340] veth1: entered allmulticast mode [ 31.924674][ T340] veth1.10: entered promiscuous mode [ 31.924845][ T340] veth1: entered promiscuous mode [ 31.937206][ T340] ip (340) used greatest stack depth: 23600 bytes left [ 32.378447][ T345] br11: port 1(veth1.11) entered blocking state [ 32.378709][ T345] br11: port 1(veth1.11) entered disabled state [ 32.378972][ T345] veth1.11: entered allmulticast mode [ 32.381374][ T345] veth1.11: entered promiscuous mode [ 33.280738][ T355] br10: port 2(veth2.10) entered blocking state [ 33.281998][ T355] br10: port 2(veth2.10) entered disabled state [ 33.287483][ T355] veth2.10: entered allmulticast mode [ 33.287652][ T355] veth2: entered allmulticast mode [ 33.289555][ T355] veth2.10: entered promiscuous mode [ 33.289720][ T355] veth2: entered promiscuous mode [ 33.785770][ T360] br11: port 2(veth2.11) entered blocking state [ 33.786021][ T360] br11: port 2(veth2.11) entered disabled state [ 33.786263][ T360] veth2.11: entered allmulticast mode [ 33.788065][ T360] veth2.11: entered promiscuous mode [ 34.238462][ T364] br10: port 2(veth2.10) entered blocking state [ 34.238828][ T364] br10: port 2(veth2.10) entered forwarding state [ 34.239472][ T364] br10: port 1(veth1.10) entered blocking state [ 34.239724][ T364] br10: port 1(veth1.10) entered forwarding state [ 34.359550][ T365] br11: port 2(veth2.11) entered blocking state [ 34.359849][ T365] br11: port 2(veth2.11) entered forwarding state [ 34.360478][ T365] br11: port 1(veth1.11) entered blocking state [ 34.360732][ T365] br11: port 1(veth1.11) entered forwarding state [ 49.451043][ C3] [ 49.451226][ C3] ======================================================== [ 49.451531][ C3] WARNING: possible irq lock inversion dependency detected [ 49.451900][ C3] 6.9.0-rc1-virtme #1 Not tainted [ 49.452107][ C3] -------------------------------------------------------- [ 49.452432][ C3] ksoftirqd/3/33 just changed the state of lock: [ 49.452695][ C3] ffff8880050c2c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.453266][ C3] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 49.453602][ C3] (&p->alloc_lock){+.+.}-{2:2} [ 49.453611][ C3] [ 49.453611][ C3] [ 49.453611][ C3] and interrupts could create inverse lock ordering between them. [ 49.453611][ C3] [ 49.454408][ C3] [ 49.454408][ C3] other info that might help us debug this: [ 49.454721][ C3] Chain exists of: [ 49.454721][ C3] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 49.454721][ C3] [ 49.455207][ C3] Possible interrupt unsafe locking scenario: [ 49.455207][ C3] [ 49.455537][ C3] CPU0 CPU1 [ 49.455752][ C3] ---- ---- [ 49.455971][ C3] lock(&p->alloc_lock); [ 49.456131][ C3] local_irq_disable(); [ 49.456404][ C3] lock(&br->lock); [ 49.456684][ C3] lock(lweventlist_lock); [ 49.456964][ C3] [ 49.457129][ C3] lock(&br->lock); [ 49.457299][ C3] [ 49.457299][ C3] *** DEADLOCK *** [ 49.457299][ C3] [ 49.457617][ C3] 1 lock held by ksoftirqd/3/33: [ 49.457830][ C3] #0: ffffc9000025fa20 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 49.458291][ C3] [ 49.458291][ C3] the shortest dependencies between 2nd lock and 1st lock: [ 49.458677][ C3] -> (&p->alloc_lock){+.+.}-{2:2} { [ 49.458903][ C3] HARDIRQ-ON-W at: [ 49.459071][ C3] __lock_acquire+0x797/0x1570 [ 49.459364][ C3] lock_acquire.part.0+0xeb/0x330 [ 49.459640][ C3] _raw_spin_lock+0x30/0x40 [ 49.459921][ C3] set_mems_allowed+0x1d/0x210 [ 49.460192][ C3] kernel_init_freeable+0x72/0x310 [ 49.460468][ C3] kernel_init+0x20/0x200 [ 49.460754][ C3] ret_from_fork+0x31/0x70 [ 49.461028][ C3] ret_from_fork_asm+0x1a/0x30 [ 49.461304][ C3] SOFTIRQ-ON-W at: [ 49.461463][ C3] __lock_acquire+0x797/0x1570 [ 49.461761][ C3] lock_acquire.part.0+0xeb/0x330 [ 49.462015][ C3] _raw_spin_lock+0x30/0x40 [ 49.462275][ C3] set_mems_allowed+0x1d/0x210 [ 49.462531][ C3] kernel_init_freeable+0x72/0x310 [ 49.462792][ C3] kernel_init+0x20/0x200 [ 49.463038][ C3] ret_from_fork+0x31/0x70 [ 49.463294][ C3] ret_from_fork_asm+0x1a/0x30 [ 49.463555][ C3] INITIAL USE at: [ 49.463709][ C3] __lock_acquire+0x797/0x1570 [ 49.463972][ C3] lock_acquire.part.0+0xeb/0x330 [ 49.464229][ C3] _raw_spin_lock+0x30/0x40 [ 49.464497][ C3] set_mems_allowed+0x1d/0x210 [ 49.464766][ C3] kernel_init_freeable+0x72/0x310 [ 49.465025][ C3] kernel_init+0x20/0x200 [ 49.465282][ C3] ret_from_fork+0x31/0x70 [ 49.465547][ C3] ret_from_fork_asm+0x1a/0x30 [ 49.465817][ C3] } [ 49.465927][ C3] ... key at: [] __key.387+0x0/0x40 [ 49.466238][ C3] ... acquired at: [ 49.466391][ C3] __lock_acquire+0xaf0/0x1570 [ 49.466592][ C3] lock_acquire.part.0+0xeb/0x330 [ 49.466797][ C3] _raw_spin_lock+0x30/0x40 [ 49.466997][ C3] __get_task_comm+0x27/0x70 [ 49.467186][ C3] ref_tracker_alloc+0x2ee/0x490 [ 49.467391][ C3] linkwatch_fire_event+0x196/0x200 [ 49.467597][ C3] veth_newlink+0x367/0x830 [veth] [ 49.467818][ C3] rtnl_newlink_create+0x341/0x850 [ 49.468023][ C3] __rtnl_newlink+0xac9/0xd80 [ 49.468220][ C3] rtnl_newlink+0x63/0xa0 [ 49.468429][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 49.468633][ C3] netlink_rcv_skb+0x130/0x360 [ 49.468847][ C3] netlink_unicast+0x449/0x710 [ 49.469049][ C3] netlink_sendmsg+0x723/0xbe0 [ 49.469250][ C3] ____sys_sendmsg+0x7b2/0xa10 [ 49.469456][ C3] ___sys_sendmsg+0xee/0x170 [ 49.469658][ C3] __sys_sendmsg+0xcd/0x170 [ 49.469858][ C3] do_syscall_64+0xc6/0x1e0 [ 49.470061][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 49.470310][ C3] [ 49.470412][ C3] -> (lweventlist_lock){....}-{2:2} { [ 49.470630][ C3] INITIAL USE at: [ 49.470784][ C3] __lock_acquire+0x797/0x1570 [ 49.471042][ C3] lock_acquire.part.0+0xeb/0x330 [ 49.471295][ C3] _raw_spin_lock_irqsave+0x3f/0x60 [ 49.471551][ C3] linkwatch_sync_dev+0x29/0x1f0 [ 49.471809][ C3] rtnl_getlink+0x4c9/0x970 [ 49.472076][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 49.472319][ C3] netlink_rcv_skb+0x130/0x360 [ 49.472574][ C3] netlink_unicast+0x449/0x710 [ 49.472832][ C3] netlink_sendmsg+0x723/0xbe0 [ 49.473080][ C3] __sys_sendto+0x37d/0x410 [ 49.473340][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 49.473614][ C3] do_syscall_64+0xc6/0x1e0 [ 49.473879][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 49.474195][ C3] } [ 49.474297][ C3] ... key at: [] lweventlist_lock+0x18/0x60 [ 49.474599][ C3] ... acquired at: [ 49.474739][ C3] __lock_acquire+0xaf0/0x1570 [ 49.474943][ C3] lock_acquire.part.0+0xeb/0x330 [ 49.475146][ C3] _raw_spin_lock_irqsave+0x3f/0x60 [ 49.475351][ C3] linkwatch_fire_event+0x74/0x200 [ 49.475556][ C3] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 49.475876][ C3] br_set_mac_address+0x1f3/0x260 [bridge] [ 49.476185][ C3] dev_set_mac_address+0x28a/0x410 [ 49.476383][ C3] dev_set_mac_address_user+0x31/0x50 [ 49.476575][ C3] do_setlink+0x17b4/0x21e0 [ 49.476767][ C3] rtnl_setlink+0x1f7/0x310 [ 49.476974][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 49.477173][ C3] netlink_rcv_skb+0x130/0x360 [ 49.477375][ C3] netlink_unicast+0x449/0x710 [ 49.477561][ C3] netlink_sendmsg+0x723/0xbe0 [ 49.477760][ C3] __sys_sendto+0x37d/0x410 [ 49.477958][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 49.478154][ C3] do_syscall_64+0xc6/0x1e0 [ 49.478352][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 49.478603][ C3] [ 49.478703][ C3] -> (&br->lock){+.-.}-{2:2} { [ 49.478908][ C3] HARDIRQ-ON-W at: [ 49.479054][ C3] __lock_acquire+0x797/0x1570 [ 49.479300][ C3] lock_acquire.part.0+0xeb/0x330 [ 49.479539][ C3] _raw_spin_lock_bh+0x38/0x50 [ 49.479784][ C3] br_set_mac_address+0xd2/0x260 [bridge] [ 49.480146][ C3] dev_set_mac_address+0x28a/0x410 [ 49.480394][ C3] dev_set_mac_address_user+0x31/0x50 [ 49.480644][ C3] do_setlink+0x17b4/0x21e0 [ 49.480900][ C3] rtnl_setlink+0x1f7/0x310 [ 49.481150][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 49.481397][ C3] netlink_rcv_skb+0x130/0x360 [ 49.481664][ C3] netlink_unicast+0x449/0x710 [ 49.481841][ C3] netlink_sendmsg+0x723/0xbe0 [ 49.482011][ C3] __sys_sendto+0x37d/0x410 [ 49.482180][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 49.482344][ C3] do_syscall_64+0xc6/0x1e0 [ 49.482510][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 49.482712][ C3] IN-SOFTIRQ-W at: [ 49.482813][ C3] __lock_acquire+0x797/0x1570 [ 49.482983][ C3] lock_acquire.part.0+0xeb/0x330 [ 49.483146][ C3] _raw_spin_lock+0x30/0x40 [ 49.483316][ C3] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.483553][ C3] call_timer_fn+0x13b/0x230 [ 49.483716][ C3] __run_timers+0x545/0x810 [ 49.483879][ C3] timer_expire_remote+0x9b/0xe0 [ 49.484125][ C3] tmigr_handle_remote_cpu+0x270/0x430 [ 49.484291][ C3] tmigr_handle_remote_up+0x19f/0x2e0 [ 49.484455][ C3] tmigr_handle_remote+0x21d/0x3a0 [ 49.484698][ C3] __do_softirq+0x1f8/0x5df [ 49.484869][ C3] run_ksoftirqd+0x2e/0x60 [ 49.485035][ C3] smpboot_thread_fn+0x306/0x840 [ 49.485203][ C3] kthread+0x28a/0x350 [ 49.485411][ C3] ret_from_fork+0x31/0x70 [ 49.485578][ C3] ret_from_fork_asm+0x1a/0x30 [ 49.485742][ C3] INITIAL USE at: [ 49.485841][ C3] __lock_acquire+0x797/0x1570 [ 49.486155][ C3] lock_acquire.part.0+0xeb/0x330 [ 49.486318][ C3] _raw_spin_lock_bh+0x38/0x50 [ 49.486486][ C3] br_set_mac_address+0xd2/0x260 [bridge] [ 49.486791][ C3] dev_set_mac_address+0x28a/0x410 [ 49.486956][ C3] dev_set_mac_address_user+0x31/0x50 [ 49.487118][ C3] do_setlink+0x17b4/0x21e0 [ 49.487356][ C3] rtnl_setlink+0x1f7/0x310 [ 49.487520][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 49.487688][ C3] netlink_rcv_skb+0x130/0x360 [ 49.487852][ C3] netlink_unicast+0x449/0x710 [ 49.488093][ C3] netlink_sendmsg+0x723/0xbe0 [ 49.488255][ C3] __sys_sendto+0x37d/0x410 [ 49.488416][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 49.488654][ C3] do_syscall_64+0xc6/0x1e0 [ 49.488817][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 49.489017][ C3] } [ 49.489084][ C3] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 49.489417][ C3] ... acquired at: [ 49.489519][ C3] mark_lock+0x28d/0x3e0 [ 49.489650][ C3] mark_usage+0xd9/0x2a0 [ 49.489781][ C3] __lock_acquire+0x797/0x1570 [ 49.489989][ C3] lock_acquire.part.0+0xeb/0x330 [ 49.490120][ C3] _raw_spin_lock+0x30/0x40 [ 49.490255][ C3] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.490455][ C3] call_timer_fn+0x13b/0x230 [ 49.490658][ C3] __run_timers+0x545/0x810 [ 49.490787][ C3] timer_expire_remote+0x9b/0xe0 [ 49.490917][ C3] tmigr_handle_remote_cpu+0x270/0x430 [ 49.491048][ C3] tmigr_handle_remote_up+0x19f/0x2e0 [ 49.491252][ C3] tmigr_handle_remote+0x21d/0x3a0 [ 49.491385][ C3] __do_softirq+0x1f8/0x5df [ 49.491518][ C3] run_ksoftirqd+0x2e/0x60 [ 49.491665][ C3] smpboot_thread_fn+0x306/0x840 [ 49.491870][ C3] kthread+0x28a/0x350 [ 49.491968][ C3] ret_from_fork+0x31/0x70 [ 49.492102][ C3] ret_from_fork_asm+0x1a/0x30 [ 49.492232][ C3] [ 49.492299][ C3] [ 49.492299][ C3] stack backtrace: [ 49.492530][ C3] CPU: 3 PID: 33 Comm: ksoftirqd/3 Not tainted 6.9.0-rc1-virtme #1 [ 49.492733][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 49.493101][ C3] Call Trace: [ 49.493201][ C3] [ 49.493271][ C3] dump_stack_lvl+0x82/0xd0 [ 49.493406][ C3] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 49.493570][ C3] ? kernel_text_address+0x17/0xe0 [ 49.493777][ C3] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 49.493946][ C3] ? __pfx_usage_skip+0x10/0x10 [ 49.494082][ C3] ? __pfx_usage_match+0x10/0x10 [ 49.494213][ C3] ? arch_stack_walk+0x8c/0xf0 [ 49.494423][ C3] mark_lock_irq+0x4cd/0xa10 [ 49.494555][ C3] ? ret_from_fork_asm+0x1a/0x30 [ 49.494689][ C3] ? __pfx_mark_lock_irq+0x10/0x10 [ 49.494821][ C3] ? __pfx_stack_trace_save+0x10/0x10 [ 49.495029][ C3] ? add_chain_cache+0x248/0x8b0 [ 49.495167][ C3] ? save_trace+0x8f/0x5b0 [ 49.495299][ C3] mark_lock+0x28d/0x3e0 [ 49.495400][ C3] mark_usage+0xd9/0x2a0 [ 49.495501][ C3] __lock_acquire+0x797/0x1570 [ 49.495707][ C3] ? __lock_acquire+0xaf0/0x1570 [ 49.495842][ C3] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 49.496075][ C3] lock_acquire.part.0+0xeb/0x330 [ 49.496206][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.496556][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 49.496688][ C3] ? trace_lock_acquire+0x135/0x1c0 [ 49.496820][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.497019][ C3] ? lock_acquire+0x32/0xc0 [ 49.497223][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.497425][ C3] _raw_spin_lock+0x30/0x40 [ 49.497556][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.497834][ C3] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.498041][ C3] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 49.498272][ C3] call_timer_fn+0x13b/0x230 [ 49.498405][ C3] ? call_timer_fn+0xe8/0x230 [ 49.498609][ C3] ? call_timer_fn+0xe8/0x230 [ 49.498740][ C3] ? __pfx_call_timer_fn+0x10/0x10 [ 49.498871][ C3] ? mark_lock+0x38/0x3e0 [ 49.498979][ C3] __run_timers+0x545/0x810 [ 49.499186][ C3] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 49.499421][ C3] ? __pfx___run_timers+0x10/0x10 [ 49.499552][ C3] ? __lock_release+0x103/0x460 [ 49.499684][ C3] ? do_raw_spin_lock+0x131/0x270 [ 49.499889][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 49.500020][ C3] ? lock_acquire+0x32/0xc0 [ 49.500155][ C3] ? timer_expire_remote+0x93/0xe0 [ 49.500294][ C3] timer_expire_remote+0x9b/0xe0 [ 49.500499][ C3] tmigr_handle_remote_cpu+0x270/0x430 [ 49.500632][ C3] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10 [ 49.500798][ C3] tmigr_handle_remote_up+0x19f/0x2e0 [ 49.500931][ C3] tmigr_handle_remote+0x21d/0x3a0 [ 49.501134][ C3] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 49.501265][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 49.501435][ C3] __do_softirq+0x1f8/0x5df [ 49.501566][ C3] ? __pfx_run_ksoftirqd+0x10/0x10 [ 49.501783][ C3] run_ksoftirqd+0x2e/0x60 [ 49.501912][ C3] smpboot_thread_fn+0x306/0x840 [ 49.502049][ C3] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 49.502179][ C3] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 49.502310][ C3] kthread+0x28a/0x350 [ 49.502482][ C3] ? __pfx_kthread+0x10/0x10 [ 49.502618][ C3] ret_from_fork+0x31/0x70 [ 49.502750][ C3] ? __pfx_kthread+0x10/0x10 [ 49.502882][ C3] ret_from_fork_asm+0x1a/0x30 [ 49.503090][ C3] [ 115.227787][ T614] br11: port 2(veth2.11) entered disabled state [ 115.228243][ T614] br11: port 1(veth1.11) entered disabled state [ 115.330890][ T615] br10: port 2(veth2.10) entered disabled state [ 115.331363][ T615] br10: port 1(veth1.10) entered disabled state [ 115.531570][ T617] veth2.11: left allmulticast mode [ 115.531797][ T617] veth2.11: left promiscuous mode [ 115.532103][ T617] br11: port 2(veth2.11) entered disabled state [ 115.748499][ T619] veth2: left allmulticast mode [ 115.748685][ T619] veth2: left promiscuous mode [ 115.850012][ T622] veth2.10: left allmulticast mode [ 115.850196][ T622] veth2.10: left promiscuous mode [ 115.850454][ T622] br10: port 2(veth2.10) entered disabled state [ 116.396067][ T627] veth1.11: left allmulticast mode [ 116.396233][ T627] veth1.11: left promiscuous mode [ 116.396483][ T627] br11: port 1(veth1.11) entered disabled state [ 116.605719][ T629] veth1: left allmulticast mode [ 116.605983][ T629] veth1: left promiscuous mode [ 116.698983][ T630] veth1.10: left allmulticast mode [ 116.699149][ T630] veth1.10: left promiscuous mode [ 116.699401][ T630] br10: port 1(veth1.10) entered disabled state