[ 26.131296][ T272] ip (272) used greatest stack depth: 24480 bytes left [ 29.657107][ T306] br1: port 1(veth1) entered blocking state [ 29.657520][ T306] br1: port 1(veth1) entered disabled state [ 29.657861][ T306] veth1: entered allmulticast mode [ 29.659777][ T306] veth1: entered promiscuous mode [ 29.778153][ T63] br1: port 1(veth1) entered blocking state [ 29.778602][ T63] br1: port 1(veth1) entered forwarding state [ 29.934799][ T308] br1: port 2(veth2) entered blocking state [ 29.935226][ T308] br1: port 2(veth2) entered disabled state [ 29.935692][ T308] veth2: entered allmulticast mode [ 29.940138][ T308] veth2: entered promiscuous mode [ 30.084083][ T63] br1: port 2(veth2) entered blocking state [ 30.084401][ T63] br1: port 2(veth2) entered forwarding state [ 30.489797][ T312] 8021q: 802.1Q VLAN Support v1.8 [ 31.536084][ T322] GACT probability NOT on [ 40.169206][ T363] Mirror/redirect action on [ 44.847225][ C3] [ 44.847360][ C3] ======================================================== [ 44.847644][ C3] WARNING: possible irq lock inversion dependency detected [ 44.847904][ C3] 6.9.0-rc1-virtme #1 Not tainted [ 44.848082][ C3] -------------------------------------------------------- [ 44.848363][ C3] jq/385 just changed the state of lock: [ 44.848544][ C3] ffff88800240ac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.848998][ C3] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 44.849255][ C3] (&p->alloc_lock){+.+.}-{2:2} [ 44.849260][ C3] [ 44.849260][ C3] [ 44.849260][ C3] and interrupts could create inverse lock ordering between them. [ 44.849260][ C3] [ 44.849899][ C3] [ 44.849899][ C3] other info that might help us debug this: [ 44.850155][ C3] Chain exists of: [ 44.850155][ C3] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 44.850155][ C3] [ 44.850572][ C3] Possible interrupt unsafe locking scenario: [ 44.850572][ C3] [ 44.850836][ C3] CPU0 CPU1 [ 44.851013][ C3] ---- ---- [ 44.851193][ C3] lock(&p->alloc_lock); [ 44.851333][ C3] local_irq_disable(); [ 44.851560][ C3] lock(&br->lock); [ 44.851777][ C3] lock(lweventlist_lock); [ 44.851996][ C3] [ 44.852132][ C3] lock(&br->lock); [ 44.852263][ C3] [ 44.852263][ C3] *** DEADLOCK *** [ 44.852263][ C3] [ 44.852519][ C3] 2 locks held by jq/385: [ 44.852656][ C3] #0: ffffffff98b21c90 (remove_cache_srcu){.+.+}-{0:0}, at: kasan_quarantine_reduce+0x85/0x1e0 [ 44.853032][ C3] #1: ffffc90000288d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 44.853389][ C3] [ 44.853389][ C3] the shortest dependencies between 2nd lock and 1st lock: [ 44.853721][ C3] -> (&p->alloc_lock){+.+.}-{2:2} { [ 44.853903][ C3] HARDIRQ-ON-W at: [ 44.854051][ C3] __lock_acquire+0x797/0x1570 [ 44.854280][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.854500][ C3] _raw_spin_lock+0x30/0x40 [ 44.854718][ C3] set_mems_allowed+0x1d/0x210 [ 44.854942][ C3] kernel_init_freeable+0x72/0x310 [ 44.855171][ C3] kernel_init+0x20/0x200 [ 44.855403][ C3] ret_from_fork+0x31/0x70 [ 44.855630][ C3] ret_from_fork_asm+0x1a/0x30 [ 44.855852][ C3] SOFTIRQ-ON-W at: [ 44.855988][ C3] __lock_acquire+0x797/0x1570 [ 44.856209][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.856442][ C3] _raw_spin_lock+0x30/0x40 [ 44.856663][ C3] set_mems_allowed+0x1d/0x210 [ 44.856883][ C3] kernel_init_freeable+0x72/0x310 [ 44.857098][ C3] kernel_init+0x20/0x200 [ 44.857426][ C3] ret_from_fork+0x31/0x70 [ 44.857644][ C3] ret_from_fork_asm+0x1a/0x30 [ 44.857864][ C3] INITIAL USE at: [ 44.857995][ C3] __lock_acquire+0x797/0x1570 [ 44.858335][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.858554][ C3] _raw_spin_lock+0x30/0x40 [ 44.858774][ C3] set_mems_allowed+0x1d/0x210 [ 44.858997][ C3] kernel_init_freeable+0x72/0x310 [ 44.859336][ C3] kernel_init+0x20/0x200 [ 44.859550][ C3] ret_from_fork+0x31/0x70 [ 44.859764][ C3] ret_from_fork_asm+0x1a/0x30 [ 44.859982][ C3] } [ 44.860076][ C3] ... key at: [] __key.387+0x0/0x40 [ 44.860334][ C3] ... acquired at: [ 44.860462][ C3] __lock_acquire+0xaf0/0x1570 [ 44.860637][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.860812][ C3] _raw_spin_lock+0x30/0x40 [ 44.860986][ C3] __get_task_comm+0x27/0x70 [ 44.861161][ C3] ref_tracker_alloc+0x2ee/0x490 [ 44.861335][ C3] linkwatch_fire_event+0x196/0x200 [ 44.861514][ C3] veth_newlink+0x367/0x830 [veth] [ 44.861703][ C3] rtnl_newlink_create+0x341/0x850 [ 44.861993][ C3] __rtnl_newlink+0xac9/0xd80 [ 44.862173][ C3] rtnl_newlink+0x63/0xa0 [ 44.862358][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.862531][ C3] netlink_rcv_skb+0x130/0x360 [ 44.862821][ C3] netlink_unicast+0x449/0x710 [ 44.862995][ C3] netlink_sendmsg+0x723/0xbe0 [ 44.863295][ C3] ____sys_sendmsg+0x7b2/0xa10 [ 44.863484][ C3] ___sys_sendmsg+0xee/0x170 [ 44.863661][ C3] __sys_sendmsg+0xcd/0x170 [ 44.863842][ C3] do_syscall_64+0xc6/0x1e0 [ 44.864028][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.864263][ C3] [ 44.864353][ C3] -> (lweventlist_lock){....}-{2:2} { [ 44.864540][ C3] INITIAL USE at: [ 44.864677][ C3] __lock_acquire+0x797/0x1570 [ 44.864905][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.865128][ C3] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.865350][ C3] linkwatch_sync_dev+0x29/0x1f0 [ 44.865573][ C3] rtnl_getlink+0x4c9/0x970 [ 44.865793][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.866019][ C3] netlink_rcv_skb+0x130/0x360 [ 44.866250][ C3] netlink_unicast+0x449/0x710 [ 44.866479][ C3] netlink_sendmsg+0x723/0xbe0 [ 44.866699][ C3] __sys_sendto+0x37d/0x410 [ 44.866919][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 44.867159][ C3] do_syscall_64+0xc6/0x1e0 [ 44.867389][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.867664][ C3] } [ 44.867751][ C3] ... key at: [] lweventlist_lock+0x18/0x60 [ 44.868026][ C3] ... acquired at: [ 44.868170][ C3] __lock_acquire+0xaf0/0x1570 [ 44.868366][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.868543][ C3] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.868723][ C3] linkwatch_fire_event+0x74/0x200 [ 44.868897][ C3] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 44.869164][ C3] br_set_mac_address+0x1f3/0x260 [bridge] [ 44.869423][ C3] dev_set_mac_address+0x28a/0x410 [ 44.869613][ C3] dev_set_mac_address_user+0x31/0x50 [ 44.869805][ C3] do_setlink+0x17b4/0x21e0 [ 44.869985][ C3] rtnl_setlink+0x1f7/0x310 [ 44.870163][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.870342][ C3] netlink_rcv_skb+0x130/0x360 [ 44.870519][ C3] netlink_unicast+0x449/0x710 [ 44.870704][ C3] netlink_sendmsg+0x723/0xbe0 [ 44.870878][ C3] __sys_sendto+0x37d/0x410 [ 44.871057][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 44.871241][ C3] do_syscall_64+0xc6/0x1e0 [ 44.871431][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.871648][ C3] [ 44.871738][ C3] -> (&br->lock){+.-.}-{2:2} { [ 44.871927][ C3] HARDIRQ-ON-W at: [ 44.872060][ C3] __lock_acquire+0x797/0x1570 [ 44.872275][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.872504][ C3] _raw_spin_lock_bh+0x38/0x50 [ 44.872747][ C3] recalculate_group_addr+0x55/0x130 [bridge] [ 44.873067][ C3] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 44.873377][ C3] br_changelink+0x36c/0x1360 [bridge] [ 44.873649][ C3] br_dev_newlink+0xa5/0x100 [bridge] [ 44.873914][ C3] rtnl_newlink_create+0x341/0x850 [ 44.874138][ C3] __rtnl_newlink+0xac9/0xd80 [ 44.874471][ C3] rtnl_newlink+0x63/0xa0 [ 44.874691][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.874919][ C3] netlink_rcv_skb+0x130/0x360 [ 44.875143][ C3] netlink_unicast+0x449/0x710 [ 44.875589][ C3] netlink_sendmsg+0x723/0xbe0 [ 44.875822][ C3] ____sys_sendmsg+0x7b2/0xa10 [ 44.876049][ C3] ___sys_sendmsg+0xee/0x170 [ 44.876507][ C3] __sys_sendmsg+0xcd/0x170 [ 44.876735][ C3] do_syscall_64+0xc6/0x1e0 [ 44.876964][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.877227][ C3] IN-SOFTIRQ-W at: [ 44.877359][ C3] __lock_acquire+0x797/0x1570 [ 44.877586][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.877810][ C3] _raw_spin_lock+0x30/0x40 [ 44.878151][ C3] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.878454][ C3] call_timer_fn+0x13b/0x230 [ 44.878675][ C3] __run_timers+0x545/0x810 [ 44.878995][ C3] run_timer_softirq+0xe8/0x1b0 [ 44.879211][ C3] __do_softirq+0x1f8/0x5df [ 44.879431][ C3] irq_exit_rcu+0x97/0xc0 [ 44.879649][ C3] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.880024][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.880283][ C3] kasan_report+0xd1/0xf0 [ 44.880504][ C3] memchr_inv+0x1f4/0x260 [ 44.880827][ C3] slab_pad_check.part.0+0xb0/0x1b0 [ 44.881043][ C3] free_slab+0xdb/0x100 [ 44.881257][ C3] qlist_free_all+0x4c/0x140 [ 44.881583][ C3] kasan_quarantine_reduce+0x192/0x1e0 [ 44.881793][ C3] __kasan_slab_alloc+0x49/0x70 [ 44.882013][ C3] kmem_cache_alloc+0xef/0x270 [ 44.882359][ C3] p9_tag_alloc+0x99/0x700 [ 44.882584][ C3] p9_client_prepare_req+0xe6/0x290 [ 44.882805][ C3] p9_client_rpc+0x18d/0x930 [ 44.883029][ C3] p9_client_clunk+0x74/0xe0 [ 44.883381][ C3] v9fs_dentry_release+0xb9/0x140 [ 44.883618][ C3] __dentry_kill+0x1d9/0x4f0 [ 44.883852][ C3] dput.part.0+0x333/0x6c0 [ 44.884088][ C3] walk_component+0x199/0x4f0 [ 44.884313][ C3] link_path_walk.part.0.constprop.0+0x494/0x9f0 [ 44.884578][ C3] path_openat+0x1be/0x440 [ 44.884925][ C3] do_filp_open+0x1b3/0x3e0 [ 44.885151][ C3] do_sys_openat2+0x122/0x160 [ 44.885378][ C3] __x64_sys_openat+0x123/0x1e0 [ 44.885608][ C3] do_syscall_64+0xc6/0x1e0 [ 44.885949][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.886229][ C3] INITIAL USE at: [ 44.886362][ C3] __lock_acquire+0x797/0x1570 [ 44.886700][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.886927][ C3] _raw_spin_lock_bh+0x38/0x50 [ 44.887264][ C3] recalculate_group_addr+0x55/0x130 [bridge] [ 44.887580][ C3] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 44.888001][ C3] br_changelink+0x36c/0x1360 [bridge] [ 44.888276][ C3] br_dev_newlink+0xa5/0x100 [bridge] [ 44.888539][ C3] rtnl_newlink_create+0x341/0x850 [ 44.888872][ C3] __rtnl_newlink+0xac9/0xd80 [ 44.889093][ C3] rtnl_newlink+0x63/0xa0 [ 44.889318][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.889650][ C3] netlink_rcv_skb+0x130/0x360 [ 44.889882][ C3] netlink_unicast+0x449/0x710 [ 44.890218][ C3] netlink_sendmsg+0x723/0xbe0 [ 44.890434][ C3] ____sys_sendmsg+0x7b2/0xa10 [ 44.890777][ C3] ___sys_sendmsg+0xee/0x170 [ 44.890995][ C3] __sys_sendmsg+0xcd/0x170 [ 44.891223][ C3] do_syscall_64+0xc6/0x1e0 [ 44.891550][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.891820][ C3] } [ 44.891909][ C3] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 44.892358][ C3] ... acquired at: [ 44.892490][ C3] mark_lock+0x28d/0x3e0 [ 44.892674][ C3] mark_usage+0xd9/0x2a0 [ 44.892864][ C3] __lock_acquire+0x797/0x1570 [ 44.893156][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.893352][ C3] _raw_spin_lock+0x30/0x40 [ 44.893534][ C3] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.893890][ C3] call_timer_fn+0x13b/0x230 [ 44.894065][ C3] __run_timers+0x545/0x810 [ 44.894251][ C3] run_timer_softirq+0xe8/0x1b0 [ 44.894534][ C3] __do_softirq+0x1f8/0x5df [ 44.894707][ C3] irq_exit_rcu+0x97/0xc0 [ 44.894889][ C3] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.895104][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.895424][ C3] kasan_report+0xd1/0xf0 [ 44.895601][ C3] memchr_inv+0x1f4/0x260 [ 44.895774][ C3] slab_pad_check.part.0+0xb0/0x1b0 [ 44.895950][ C3] free_slab+0xdb/0x100 [ 44.896081][ C3] qlist_free_all+0x4c/0x140 [ 44.896264][ C3] kasan_quarantine_reduce+0x192/0x1e0 [ 44.896551][ C3] __kasan_slab_alloc+0x49/0x70 [ 44.896731][ C3] kmem_cache_alloc+0xef/0x270 [ 44.896901][ C3] p9_tag_alloc+0x99/0x700 [ 44.897075][ C3] p9_client_prepare_req+0xe6/0x290 [ 44.897352][ C3] p9_client_rpc+0x18d/0x930 [ 44.897526][ C3] p9_client_clunk+0x74/0xe0 [ 44.897698][ C3] v9fs_dentry_release+0xb9/0x140 [ 44.897873][ C3] __dentry_kill+0x1d9/0x4f0 [ 44.898049][ C3] dput.part.0+0x333/0x6c0 [ 44.898353][ C3] walk_component+0x199/0x4f0 [ 44.898536][ C3] link_path_walk.part.0.constprop.0+0x494/0x9f0 [ 44.898757][ C3] path_openat+0x1be/0x440 [ 44.899035][ C3] do_filp_open+0x1b3/0x3e0 [ 44.899313][ C3] do_sys_openat2+0x122/0x160 [ 44.899588][ C3] __x64_sys_openat+0x123/0x1e0 [ 44.899871][ C3] do_syscall_64+0xc6/0x1e0 [ 44.900254][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.900584][ C3] [ 44.900673][ C3] [ 44.900673][ C3] stack backtrace: [ 44.900893][ C3] CPU: 3 PID: 385 Comm: jq Not tainted 6.9.0-rc1-virtme #1 [ 44.901301][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.901707][ C3] Call Trace: [ 44.901844][ C3] [ 44.901934][ C3] dump_stack_lvl+0x82/0xd0 [ 44.902116][ C3] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 44.902335][ C3] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 44.902560][ C3] ? __pfx_usage_skip+0x10/0x10 [ 44.902730][ C3] ? __pfx_usage_match+0x10/0x10 [ 44.902892][ C3] ? arch_stack_walk+0xa2/0xf0 [ 44.903056][ C3] mark_lock_irq+0x4cd/0xa10 [ 44.903219][ C3] ? __pfx_mark_lock_irq+0x10/0x10 [ 44.903384][ C3] ? stack_trace_save+0x94/0xd0 [ 44.903560][ C3] ? add_chain_cache+0x248/0x8b0 [ 44.903740][ C3] ? save_trace+0x8f/0x5b0 [ 44.904020][ C3] mark_lock+0x28d/0x3e0 [ 44.904151][ C3] mark_usage+0xd9/0x2a0 [ 44.904284][ C3] __lock_acquire+0x797/0x1570 [ 44.904460][ C3] ? __lock_acquire+0xaf0/0x1570 [ 44.904735][ C3] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.905032][ C3] lock_acquire.part.0+0xeb/0x330 [ 44.905206][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.905464][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 44.905753][ C3] ? trace_lock_acquire+0x135/0x1c0 [ 44.905929][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.906195][ C3] ? lock_acquire+0x32/0xc0 [ 44.906366][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.906723][ C3] _raw_spin_lock+0x30/0x40 [ 44.906901][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.907150][ C3] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.907514][ C3] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.907818][ C3] call_timer_fn+0x13b/0x230 [ 44.907993][ C3] ? call_timer_fn+0xe8/0x230 [ 44.908320][ C3] ? call_timer_fn+0xe8/0x230 [ 44.908492][ C3] ? __pfx_call_timer_fn+0x10/0x10 [ 44.908667][ C3] ? hlock_class+0x4e/0x130 [ 44.908842][ C3] ? mark_held_locks+0x9e/0xe0 [ 44.909016][ C3] __run_timers+0x545/0x810 [ 44.909190][ C3] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.909484][ C3] ? __pfx___run_timers+0x10/0x10 [ 44.909657][ C3] ? do_raw_spin_lock+0x131/0x270 [ 44.909830][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 44.910108][ C3] ? lock_acquire+0x32/0xc0 [ 44.910285][ C3] ? run_timer_softirq+0xe0/0x1b0 [ 44.910460][ C3] run_timer_softirq+0xe8/0x1b0 [ 44.910637][ C3] __do_softirq+0x1f8/0x5df [ 44.911018][ C3] irq_exit_rcu+0x97/0xc0 [ 44.911153][ C3] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.911325][ C3] [ 44.911417][ C3] [ 44.911506][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.911724][ C3] RIP: 0010:kasan_report+0xd1/0xf0 [ 44.912012][ C3] Code: 24 28 4c 89 6c 24 30 e8 5d f5 ff ff 48 8d 7c 24 10 e8 73 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 e3 fc ff ff ff 34 24 9d <48> 83 c4 70 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc [ 44.912739][ C3] RSP: 0018:ffffc9000060f3e8 EFLAGS: 00000286 [ 44.912967][ C3] RAX: 00000000ffffffff RBX: ffff8880074b7eb8 RCX: ffffffff9763b764 [ 44.913228][ C3] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8880074b7eb8 [ 44.913593][ C3] RBP: 0000000000002000 R08: 0000000000000001 R09: fffffbfff35238a9 [ 44.913855][ C3] R10: ffffffff9a91c54f R11: 0000000000002000 R12: 0000000000000000 [ 44.914112][ C3] R13: 000000000000005a R14: dffffc0000000000 R15: ffff88800768c5c0 [ 44.914484][ C3] ? memchr_inv+0x1f4/0x260 [ 44.914664][ C3] ? __pfx___lock_release+0x10/0x10 [ 44.914834][ C3] ? hlock_class+0x4e/0x130 [ 44.915009][ C3] ? mark_lock+0x38/0x3e0 [ 44.915142][ C3] memchr_inv+0x1f4/0x260 [ 44.915378][ C3] slab_pad_check.part.0+0xb0/0x1b0 [ 44.915549][ C3] free_slab+0xdb/0x100 [ 44.915681][ C3] qlist_free_all+0x4c/0x140 [ 44.915854][ C3] kasan_quarantine_reduce+0x192/0x1e0 [ 44.916137][ C3] __kasan_slab_alloc+0x49/0x70 [ 44.916312][ C3] kmem_cache_alloc+0xef/0x270 [ 44.916485][ C3] ? kernel_text_address+0xce/0xe0 [ 44.916663][ C3] p9_tag_alloc+0x99/0x700 [ 44.916839][ C3] ? __pfx_p9_tag_alloc+0x10/0x10 [ 44.917011][ C3] ? hlock_class+0x4e/0x130 [ 44.917186][ C3] ? validate_chain+0x130/0x9b0 [ 44.917357][ C3] ? hlock_class+0x4e/0x130 [ 44.917527][ C3] p9_client_prepare_req+0xe6/0x290 [ 44.917701][ C3] ? hlock_class+0x4e/0x130 [ 44.917873][ C3] ? __pfx_p9_client_prepare_req+0x10/0x10 [ 44.918102][ C3] ? __lock_acquire+0xaf0/0x1570 [ 44.918278][ C3] p9_client_rpc+0x18d/0x930 [ 44.918451][ C3] ? __pfx_p9_client_rpc+0x10/0x10 [ 44.918622][ C3] ? __lock_release+0x103/0x460 [ 44.918790][ C3] ? list_lru_add+0x76/0x250 [ 44.918961][ C3] ? __pfx___lock_release+0x10/0x10 [ 44.919271][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 44.919442][ C3] ? find_held_lock+0x2c/0x110 [ 44.919612][ C3] ? __lock_release+0x103/0x460 [ 44.919788][ C3] ? __pfx___lock_release+0x10/0x10 [ 44.919962][ C3] p9_client_clunk+0x74/0xe0 [ 44.920136][ C3] v9fs_dentry_release+0xb9/0x140 [ 44.920316][ C3] __dentry_kill+0x1d9/0x4f0 [ 44.920490][ C3] ? __pfx_kfree_link+0x10/0x10 [ 44.920664][ C3] dput.part.0+0x333/0x6c0 [ 44.920837][ C3] walk_component+0x199/0x4f0 [ 44.921008][ C3] link_path_walk.part.0.constprop.0+0x494/0x9f0 [ 44.921230][ C3] ? __pfx_link_path_walk.part.0.constprop.0+0x10/0x10 [ 44.921452][ C3] path_openat+0x1be/0x440 [ 44.921629][ C3] ? __pfx_path_openat+0x10/0x10 [ 44.921801][ C3] ? __lock_acquire+0xaf0/0x1570 [ 44.921976][ C3] do_filp_open+0x1b3/0x3e0 [ 44.922151][ C3] ? __pfx_do_filp_open+0x10/0x10 [ 44.922429][ C3] ? find_held_lock+0x2c/0x110 [ 44.922603][ C3] ? __pfx_kfree_link+0x10/0x10 [ 44.922776][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 44.922951][ C3] ? alloc_fd+0x1f5/0x650 [ 44.923198][ C3] ? do_raw_spin_unlock+0x58/0x220 [ 44.923371][ C3] ? _raw_spin_unlock+0x23/0x40 [ 44.923548][ C3] ? alloc_fd+0x1f5/0x650 [ 44.923683][ C3] do_sys_openat2+0x122/0x160 [ 44.923857][ C3] ? vfs_fstatat+0x9e/0xc0 [ 44.924030][ C3] ? __pfx_do_sys_openat2+0x10/0x10 [ 44.924204][ C3] ? __pfx___do_sys_newfstatat+0x10/0x10 [ 44.924384][ C3] __x64_sys_openat+0x123/0x1e0 [ 44.924558][ C3] ? __pfx___x64_sys_openat+0x10/0x10 [ 44.924731][ C3] ? __pfx_do_faccessat+0x10/0x10 [ 44.924906][ C3] do_syscall_64+0xc6/0x1e0 [ 44.925079][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.925292][ C3] RIP: 0033:0x7f0fea4600e8 [ 44.925577][ C3] 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 [ 44.926189][ C3] RSP: 002b:00007ffe6dbefef8 EFLAGS: 00000287 ORIG_RAX: 0000000000000101 [ 44.926559][ C3] RAX: ffffffffffffffda RBX: 00007ffe6dbf017f RCX: 00007f0fea4600e8 [ 44.926819][ C3] RDX: 0000000000080000 RSI: 00007ffe6dbeff70 RDI: 00000000ffffff9c [ 44.927215][ C3] RBP: 00007ffe6dbeff60 R08: 0000000000080000 R09: 00007ffe6dbeff70 [ 44.927476][ C3] R10: 0000000000000000 R11: 0000000000000287 R12: 00007ffe6dbeff77 [ 44.927729][ C3] R13: 00007ffe6dbf0190 R14: 00007ffe6dbeff70 R15: 00007f0fea431000 [ 44.927969][ C3] [ 75.890841][ T535] br1: port 1(veth1) entered disabled state [ 75.988542][ T536] br1: port 2(veth2) entered disabled state [ 76.113135][ T537] veth2: left allmulticast mode [ 76.113385][ T537] veth2: left promiscuous mode [ 76.113653][ T537] br1: port 2(veth2) entered disabled state [ 76.114741][ T537] veth1: left allmulticast mode [ 76.114879][ T537] veth1: left promiscuous mode [ 76.116024][ T537] br1: port 1(veth1) entered disabled state