[ 24.524145][ T235] ip (235) used greatest stack depth: 23328 bytes left [ 29.102422][ T291] br1: port 1(veth1) entered blocking state [ 29.102840][ T291] br1: port 1(veth1) entered disabled state [ 29.103221][ T291] veth1: entered allmulticast mode [ 29.106479][ T291] veth1: entered promiscuous mode [ 29.227038][ T62] br1: port 1(veth1) entered blocking state [ 29.227467][ T62] br1: port 1(veth1) entered forwarding state [ 29.351064][ T294] br1: port 2(veth2) entered blocking state [ 29.351663][ T294] br1: port 2(veth2) entered disabled state [ 29.351944][ T294] veth2: entered allmulticast mode [ 29.355620][ T294] veth2: entered promiscuous mode [ 29.488441][ T49] br1: port 2(veth2) entered blocking state [ 29.488741][ T49] br1: port 2(veth2) entered forwarding state [ 38.922047][ T327] GACT probability NOT on [ 44.331355][ C0] [ 44.331486][ C0] ======================================================== [ 44.331743][ C0] WARNING: possible irq lock inversion dependency detected [ 44.331985][ C0] 6.9.0-rc1-virtme #1 Not tainted [ 44.332145][ C0] -------------------------------------------------------- [ 44.332388][ C0] tc/387 just changed the state of lock: [ 44.332558][ C0] ffff888007f92c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.332980][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 44.333228][ C0] (&p->alloc_lock){+.+.}-{2:2} [ 44.333232][ C0] [ 44.333232][ C0] [ 44.333232][ C0] and interrupts could create inverse lock ordering between them. [ 44.333232][ C0] [ 44.333832][ C0] [ 44.333832][ C0] other info that might help us debug this: [ 44.334068][ C0] Chain exists of: [ 44.334068][ C0] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 44.334068][ C0] [ 44.334442][ C0] Possible interrupt unsafe locking scenario: [ 44.334442][ C0] [ 44.334677][ C0] CPU0 CPU1 [ 44.334836][ C0] ---- ---- [ 44.334998][ C0] lock(&p->alloc_lock); [ 44.335124][ C0] local_irq_disable(); [ 44.335320][ C0] lock(&br->lock); [ 44.335523][ C0] lock(lweventlist_lock); [ 44.335742][ C0] [ 44.335862][ C0] lock(&br->lock); [ 44.335983][ C0] [ 44.335983][ C0] *** DEADLOCK *** [ 44.335983][ C0] [ 44.336215][ C0] 1 lock held by tc/387: [ 44.336339][ C0] #0: ffffc90000007b68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 44.336675][ C0] [ 44.336675][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 44.336968][ C0] -> (&p->alloc_lock){+.+.}-{2:2} { [ 44.337136][ C0] HARDIRQ-ON-W at: [ 44.337268][ C0] __lock_acquire+0x797/0x1570 [ 44.337477][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.337681][ C0] _raw_spin_lock+0x30/0x40 [ 44.337887][ C0] set_mems_allowed+0x1d/0x210 [ 44.338095][ C0] kernel_init_freeable+0x72/0x310 [ 44.338300][ C0] kernel_init+0x20/0x200 [ 44.338504][ C0] ret_from_fork+0x31/0x70 [ 44.338709][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.338912][ C0] SOFTIRQ-ON-W at: [ 44.339033][ C0] __lock_acquire+0x797/0x1570 [ 44.339249][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.339448][ C0] _raw_spin_lock+0x30/0x40 [ 44.339649][ C0] set_mems_allowed+0x1d/0x210 [ 44.339853][ C0] kernel_init_freeable+0x72/0x310 [ 44.340061][ C0] kernel_init+0x20/0x200 [ 44.340263][ C0] ret_from_fork+0x31/0x70 [ 44.340470][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.340670][ C0] INITIAL USE at: [ 44.340791][ C0] __lock_acquire+0x797/0x1570 [ 44.340996][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.341201][ C0] _raw_spin_lock+0x30/0x40 [ 44.341402][ C0] set_mems_allowed+0x1d/0x210 [ 44.341610][ C0] kernel_init_freeable+0x72/0x310 [ 44.341814][ C0] kernel_init+0x20/0x200 [ 44.342016][ C0] ret_from_fork+0x31/0x70 [ 44.342218][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.342419][ C0] } [ 44.342503][ C0] ... key at: [] __key.387+0x0/0x40 [ 44.342749][ C0] ... acquired at: [ 44.342873][ C0] __lock_acquire+0xaf0/0x1570 [ 44.343034][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.343195][ C0] _raw_spin_lock+0x30/0x40 [ 44.343360][ C0] __get_task_comm+0x27/0x70 [ 44.343521][ C0] ref_tracker_alloc+0x2ee/0x490 [ 44.343683][ C0] linkwatch_fire_event+0x196/0x200 [ 44.343845][ C0] veth_newlink+0x367/0x830 [veth] [ 44.344023][ C0] rtnl_newlink_create+0x341/0x850 [ 44.344191][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.344352][ C0] rtnl_newlink+0x63/0xa0 [ 44.344515][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.344676][ C0] netlink_rcv_skb+0x130/0x360 [ 44.344839][ C0] netlink_unicast+0x449/0x710 [ 44.344999][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.345162][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.345327][ C0] ___sys_sendmsg+0xee/0x170 [ 44.345490][ C0] __sys_sendmsg+0xcd/0x170 [ 44.345657][ C0] do_syscall_64+0xc6/0x1e0 [ 44.345836][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.346045][ C0] [ 44.346128][ C0] -> (lweventlist_lock){....}-{2:2} { [ 44.346290][ C0] INITIAL USE at: [ 44.346412][ C0] __lock_acquire+0x797/0x1570 [ 44.346619][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.346829][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.347029][ C0] linkwatch_sync_dev+0x29/0x1f0 [ 44.347231][ C0] rtnl_getlink+0x4c9/0x970 [ 44.347434][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.347638][ C0] netlink_rcv_skb+0x130/0x360 [ 44.347837][ C0] netlink_unicast+0x449/0x710 [ 44.348045][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.348250][ C0] __sys_sendto+0x37d/0x410 [ 44.348452][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.348654][ C0] do_syscall_64+0xc6/0x1e0 [ 44.348857][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.349102][ C0] } [ 44.349184][ C0] ... key at: [] lweventlist_lock+0x18/0x60 [ 44.349428][ C0] ... acquired at: [ 44.349548][ C0] __lock_acquire+0xaf0/0x1570 [ 44.349707][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.349870][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.350036][ C0] linkwatch_fire_event+0x74/0x200 [ 44.350203][ C0] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 44.350450][ C0] br_set_mac_address+0x1f3/0x260 [bridge] [ 44.350686][ C0] dev_set_mac_address+0x28a/0x410 [ 44.350849][ C0] dev_set_mac_address_user+0x31/0x50 [ 44.351010][ C0] do_setlink+0x17b4/0x21e0 [ 44.351169][ C0] rtnl_setlink+0x1f7/0x310 [ 44.351330][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.351494][ C0] netlink_rcv_skb+0x130/0x360 [ 44.351655][ C0] netlink_unicast+0x449/0x710 [ 44.351815][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.351984][ C0] __sys_sendto+0x37d/0x410 [ 44.352143][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.352306][ C0] do_syscall_64+0xc6/0x1e0 [ 44.352468][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.352673][ C0] [ 44.352754][ C0] -> (&br->lock){+.-.}-{2:2} { [ 44.352918][ C0] HARDIRQ-ON-W at: [ 44.353040][ C0] __lock_acquire+0x797/0x1570 [ 44.353242][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.353451][ C0] _raw_spin_lock_bh+0x38/0x50 [ 44.353651][ C0] recalculate_group_addr+0x55/0x130 [bridge] [ 44.353933][ C0] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 44.354212][ C0] br_changelink+0x36c/0x1360 [bridge] [ 44.354451][ C0] br_dev_newlink+0xa5/0x100 [bridge] [ 44.354693][ C0] rtnl_newlink_create+0x341/0x850 [ 44.354900][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.355106][ C0] rtnl_newlink+0x63/0xa0 [ 44.355310][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.355509][ C0] netlink_rcv_skb+0x130/0x360 [ 44.355724][ C0] netlink_unicast+0x449/0x710 [ 44.355928][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.356136][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.356340][ C0] ___sys_sendmsg+0xee/0x170 [ 44.356544][ C0] __sys_sendmsg+0xcd/0x170 [ 44.356749][ C0] do_syscall_64+0xc6/0x1e0 [ 44.356952][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.357197][ C0] IN-SOFTIRQ-W at: [ 44.357318][ C0] __lock_acquire+0x797/0x1570 [ 44.357528][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.357728][ C0] _raw_spin_lock+0x30/0x40 [ 44.357936][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.358215][ C0] call_timer_fn+0x13b/0x230 [ 44.358420][ C0] __run_timers+0x545/0x810 [ 44.358621][ C0] timer_expire_remote+0x9b/0xe0 [ 44.358826][ C0] tmigr_handle_remote_cpu+0x270/0x430 [ 44.359029][ C0] tmigr_handle_remote_up+0x19f/0x2e0 [ 44.359228][ C0] tmigr_handle_remote+0x21d/0x3a0 [ 44.359427][ C0] __do_softirq+0x1f8/0x5df [ 44.359629][ C0] irq_exit_rcu+0x97/0xc0 [ 44.359830][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.360074][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.360316][ C0] _raw_spin_unlock_irqrestore+0x43/0x70 [ 44.360555][ C0] get_partial_node.part.0+0x1c5/0x3a0 [ 44.360755][ C0] ___slab_alloc+0xb70/0x10a0 [ 44.360957][ C0] __kmalloc+0x34c/0x3c0 [ 44.361157][ C0] p9_fcall_init+0x7d/0x1b0 [ 44.361365][ C0] p9_tag_alloc+0x138/0x700 [ 44.361618][ C0] p9_client_prepare_req+0xe6/0x290 [ 44.361839][ C0] p9_client_rpc+0x18d/0x930 [ 44.362053][ C0] p9_client_readlink+0x71/0x120 [ 44.362271][ C0] v9fs_vfs_get_link_dotl+0x94/0x1b0 [ 44.362494][ C0] ovl_get_link+0x62/0x90 [ 44.362712][ C0] pick_link+0x8b4/0x1160 [ 44.362938][ C0] step_into+0x84e/0xfa0 [ 44.363159][ C0] open_last_lookups+0x48c/0xcd0 [ 44.363377][ C0] path_openat+0x16f/0x440 [ 44.363595][ C0] do_filp_open+0x1b3/0x3e0 [ 44.363813][ C0] do_sys_openat2+0x122/0x160 [ 44.364031][ C0] __x64_sys_openat+0x123/0x1e0 [ 44.364251][ C0] do_syscall_64+0xc6/0x1e0 [ 44.364467][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.364727][ C0] INITIAL USE at: [ 44.364858][ C0] __lock_acquire+0x797/0x1570 [ 44.365076][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.365294][ C0] _raw_spin_lock_bh+0x38/0x50 [ 44.365507][ C0] recalculate_group_addr+0x55/0x130 [bridge] [ 44.365826][ C0] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 44.366119][ C0] br_changelink+0x36c/0x1360 [bridge] [ 44.366370][ C0] br_dev_newlink+0xa5/0x100 [bridge] [ 44.366623][ C0] rtnl_newlink_create+0x341/0x850 [ 44.366838][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.367055][ C0] rtnl_newlink+0x63/0xa0 [ 44.367275][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.367490][ C0] netlink_rcv_skb+0x130/0x360 [ 44.367707][ C0] netlink_unicast+0x449/0x710 [ 44.367928][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.368144][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.368357][ C0] ___sys_sendmsg+0xee/0x170 [ 44.368581][ C0] __sys_sendmsg+0xcd/0x170 [ 44.368794][ C0] do_syscall_64+0xc6/0x1e0 [ 44.369005][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.369266][ C0] } [ 44.369354][ C0] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 44.369691][ C0] ... acquired at: [ 44.369820][ C0] mark_lock+0x28d/0x3e0 [ 44.369998][ C0] mark_usage+0xd9/0x2a0 [ 44.370176][ C0] __lock_acquire+0x797/0x1570 [ 44.370349][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.370523][ C0] _raw_spin_lock+0x30/0x40 [ 44.370695][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.370948][ C0] call_timer_fn+0x13b/0x230 [ 44.371122][ C0] __run_timers+0x545/0x810 [ 44.371293][ C0] timer_expire_remote+0x9b/0xe0 [ 44.371468][ C0] tmigr_handle_remote_cpu+0x270/0x430 [ 44.371649][ C0] tmigr_handle_remote_up+0x19f/0x2e0 [ 44.371825][ C0] tmigr_handle_remote+0x21d/0x3a0 [ 44.371996][ C0] __do_softirq+0x1f8/0x5df [ 44.372170][ C0] irq_exit_rcu+0x97/0xc0 [ 44.372341][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.372558][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.372775][ C0] _raw_spin_unlock_irqrestore+0x43/0x70 [ 44.372994][ C0] get_partial_node.part.0+0x1c5/0x3a0 [ 44.373169][ C0] ___slab_alloc+0xb70/0x10a0 [ 44.373341][ C0] __kmalloc+0x34c/0x3c0 [ 44.373512][ C0] p9_fcall_init+0x7d/0x1b0 [ 44.373686][ C0] p9_tag_alloc+0x138/0x700 [ 44.373862][ C0] p9_client_prepare_req+0xe6/0x290 [ 44.374034][ C0] p9_client_rpc+0x18d/0x930 [ 44.374206][ C0] p9_client_readlink+0x71/0x120 [ 44.374382][ C0] v9fs_vfs_get_link_dotl+0x94/0x1b0 [ 44.374558][ C0] ovl_get_link+0x62/0x90 [ 44.374731][ C0] pick_link+0x8b4/0x1160 [ 44.374906][ C0] step_into+0x84e/0xfa0 [ 44.375076][ C0] open_last_lookups+0x48c/0xcd0 [ 44.375251][ C0] path_openat+0x16f/0x440 [ 44.375422][ C0] do_filp_open+0x1b3/0x3e0 [ 44.375600][ C0] do_sys_openat2+0x122/0x160 [ 44.375783][ C0] __x64_sys_openat+0x123/0x1e0 [ 44.375966][ C0] do_syscall_64+0xc6/0x1e0 [ 44.376137][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.376350][ C0] [ 44.376439][ C0] [ 44.376439][ C0] stack backtrace: [ 44.376655][ C0] CPU: 0 PID: 387 Comm: tc Not tainted 6.9.0-rc1-virtme #1 [ 44.376916][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.377302][ C0] Call Trace: [ 44.377434][ C0] [ 44.377523][ C0] dump_stack_lvl+0x82/0xd0 [ 44.377700][ C0] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 44.377915][ C0] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 44.378138][ C0] ? __pfx_usage_skip+0x10/0x10 [ 44.378311][ C0] ? __pfx_usage_match+0x10/0x10 [ 44.378483][ C0] ? arch_stack_walk+0xa2/0xf0 [ 44.378659][ C0] mark_lock_irq+0x4cd/0xa10 [ 44.378841][ C0] ? __pfx_mark_lock_irq+0x10/0x10 [ 44.379128][ C0] ? stack_trace_save+0x94/0xd0 [ 44.379303][ C0] ? add_chain_cache+0x248/0x8b0 [ 44.379486][ C0] ? save_trace+0x8f/0x5b0 [ 44.379658][ C0] mark_lock+0x28d/0x3e0 [ 44.379791][ C0] mark_usage+0xd9/0x2a0 [ 44.379922][ C0] __lock_acquire+0x797/0x1570 [ 44.380095][ C0] ? __lock_acquire+0xaf0/0x1570 [ 44.380270][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.380568][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.380743][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.380996][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 44.381169][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 44.381449][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.381700][ C0] ? lock_acquire+0x32/0xc0 [ 44.381873][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.382131][ C0] _raw_spin_lock+0x30/0x40 [ 44.382305][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.382558][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.382812][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.383217][ C0] call_timer_fn+0x13b/0x230 [ 44.383390][ C0] ? call_timer_fn+0xe8/0x230 [ 44.383561][ C0] ? call_timer_fn+0xe8/0x230 [ 44.383737][ C0] ? __pfx_call_timer_fn+0x10/0x10 [ 44.383910][ C0] ? mark_lock+0x38/0x3e0 [ 44.384044][ C0] __run_timers+0x545/0x810 [ 44.384215][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.384513][ C0] ? __pfx___run_timers+0x10/0x10 [ 44.384791][ C0] ? __lock_release+0x103/0x460 [ 44.384988][ C0] ? do_raw_spin_lock+0x131/0x270 [ 44.385148][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 44.385309][ C0] ? lock_acquire+0x32/0xc0 [ 44.385471][ C0] ? timer_expire_remote+0x93/0xe0 [ 44.385631][ C0] timer_expire_remote+0x9b/0xe0 [ 44.385805][ C0] tmigr_handle_remote_cpu+0x270/0x430 [ 44.385966][ C0] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10 [ 44.386166][ C0] ? timerqueue_del+0x68/0x120 [ 44.386433][ C0] tmigr_handle_remote_up+0x19f/0x2e0 [ 44.386594][ C0] tmigr_handle_remote+0x21d/0x3a0 [ 44.386757][ C0] ? do_raw_spin_lock+0x131/0x270 [ 44.386916][ C0] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 44.387075][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 44.387236][ C0] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 44.387436][ C0] __do_softirq+0x1f8/0x5df [ 44.387598][ C0] irq_exit_rcu+0x97/0xc0 [ 44.387834][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.387994][ C0] [ 44.388078][ C0] [ 44.388159][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.388358][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70 [ 44.388572][ C0] Code: 10 e8 21 49 9b fd 48 89 ef e8 59 b9 9b fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d 05 bf 4f 79 <74> 0e 5b 5d c3 cc cc cc cc e8 4f b3 be fd eb dc 0f 1f 44 00 00 5b [ 44.389143][ C0] RSP: 0018:ffffc900006bf380 EFLAGS: 00000282 [ 44.389464][ C0] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff10e4179 [ 44.389703][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff86b40911 [ 44.389944][ C0] RBP: ffff888001041080 R08: 0000000000000001 R09: fffffbfff10e49fa [ 44.390183][ C0] R10: ffffffff88724fd7 R11: 0000000000001000 R12: ffff888001041080 [ 44.390422][ C0] R13: ffffea00001f3200 R14: ffff8880010433c0 R15: ffff888007cc9000 [ 44.390773][ C0] ? _raw_spin_unlock_irqrestore+0x51/0x70 [ 44.390973][ C0] get_partial_node.part.0+0x1c5/0x3a0 [ 44.391135][ C0] ___slab_alloc+0xb70/0x10a0 [ 44.391294][ C0] ? fs_reclaim_acquire+0xb3/0x170 [ 44.391455][ C0] ? p9_fcall_init+0x7d/0x1b0 [ 44.391616][ C0] ? __pfx___lock_release+0x10/0x10 [ 44.391777][ C0] ? p9_fcall_init+0x7d/0x1b0 [ 44.391940][ C0] ? __kmalloc+0x34c/0x3c0 [ 44.392100][ C0] __kmalloc+0x34c/0x3c0 [ 44.392326][ C0] p9_fcall_init+0x7d/0x1b0 [ 44.392487][ C0] p9_tag_alloc+0x138/0x700 [ 44.392650][ C0] ? __pfx_p9_tag_alloc+0x10/0x10 [ 44.392808][ C0] ? mark_lock+0x38/0x3e0 [ 44.392930][ C0] p9_client_prepare_req+0xe6/0x290 [ 44.393091][ C0] ? __pfx_p9_client_prepare_req+0x10/0x10 [ 44.393293][ C0] ? find_held_lock+0x2c/0x110 [ 44.393454][ C0] p9_client_rpc+0x18d/0x930 [ 44.393723][ C0] ? do_raw_spin_lock+0x131/0x270 [ 44.393883][ C0] ? __pfx_p9_client_rpc+0x10/0x10 [ 44.394044][ C0] ? v9fs_fid_find+0x1af/0x290 [ 44.394204][ C0] ? do_raw_spin_unlock+0x58/0x220 [ 44.394362][ C0] ? _raw_spin_unlock+0x23/0x40 [ 44.394522][ C0] ? __pfx_v9fs_fid_find+0x10/0x10 [ 44.394681][ C0] ? find_held_lock+0x2c/0x110 [ 44.394846][ C0] p9_client_readlink+0x71/0x120 [ 44.395006][ C0] v9fs_vfs_get_link_dotl+0x94/0x1b0 [ 44.395274][ C0] ? __pfx_v9fs_vfs_get_link_dotl+0x10/0x10 [ 44.395475][ C0] ovl_get_link+0x62/0x90 [ 44.395600][ C0] pick_link+0x8b4/0x1160 [ 44.395731][ C0] ? __lock_release+0x103/0x460 [ 44.395890][ C0] ? __d_lookup+0x1db/0x390 [ 44.396050][ C0] step_into+0x84e/0xfa0 [ 44.396175][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 44.396334][ C0] ? __pfx_step_into+0x10/0x10 [ 44.396494][ C0] ? __d_lookup+0x1e0/0x390 [ 44.396762][ C0] open_last_lookups+0x48c/0xcd0 [ 44.396922][ C0] path_openat+0x16f/0x440 [ 44.397082][ C0] ? __pfx_path_openat+0x10/0x10 [ 44.397243][ C0] ? __lock_acquire+0xaf0/0x1570 [ 44.397403][ C0] do_filp_open+0x1b3/0x3e0 [ 44.397561][ C0] ? __pfx_do_filp_open+0x10/0x10 [ 44.397722][ C0] ? find_held_lock+0x2c/0x110 [ 44.397883][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 44.398149][ C0] ? alloc_fd+0x1f5/0x650 [ 44.398271][ C0] ? _raw_spin_unlock+0x23/0x40 [ 44.398430][ C0] ? alloc_fd+0x1f5/0x650 [ 44.398552][ C0] do_sys_openat2+0x122/0x160 [ 44.398712][ C0] ? __pfx_do_sys_openat2+0x10/0x10 [ 44.398870][ C0] ? __pfx___debug_check_no_obj_freed+0x10/0x10 [ 44.399068][ C0] ? __virt_addr_valid+0x227/0x420 [ 44.399235][ C0] __x64_sys_openat+0x123/0x1e0 [ 44.399392][ C0] ? __pfx___x64_sys_openat+0x10/0x10 [ 44.399661][ C0] do_syscall_64+0xc6/0x1e0 [ 44.399821][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.400023][ C0] RIP: 0033:0x7f83217f00e8 [ 44.400187][ C0] Code: f9 41 89 f0 41 83 e2 40 75 30 89 f0 25 00 00 41 00 3d 00 00 41 00 74 22 44 89 c2 4c 89 ce bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 30 c3 0f 1f 80 00 00 00 00 48 8d 44 24 08 c7 [ 44.400751][ C0] RSP: 002b:00007ffdabddb588 EFLAGS: 00000287 ORIG_RAX: 0000000000000101 [ 44.401099][ C0] RAX: ffffffffffffffda RBX: 00007ffdabddb80f RCX: 00007f83217f00e8 [ 44.401336][ C0] RDX: 0000000000080000 RSI: 00007ffdabddb600 RDI: 00000000ffffff9c [ 44.401575][ C0] RBP: 00007ffdabddb5f0 R08: 0000000000080000 R09: 00007ffdabddb600 [ 44.401816][ C0] R10: 0000000000000000 R11: 0000000000000287 R12: 00007ffdabddb607 [ 44.402053][ C0] R13: 00007ffdabddb820 R14: 00007ffdabddb600 R15: 00007f83217c1000 [ 44.402294][ C0] [ 48.971412][ T448] br1: port 2(veth2) entered disabled state [ 49.066989][ T449] veth2: left allmulticast mode [ 49.067242][ T449] veth2: left promiscuous mode [ 49.067500][ T449] br1: port 2(veth2) entered disabled state [ 49.170736][ T450] br1: port 1(veth1) entered disabled state [ 49.268271][ T451] veth1: left allmulticast mode [ 49.268530][ T451] veth1: left promiscuous mode [ 49.268776][ T451] br1: port 1(veth1) entered disabled state