[ 26.552196][ T237] ip (237) used greatest stack depth: 23328 bytes left [ 32.024154][ T293] br1: port 1(veth1) entered blocking state [ 32.024596][ T293] br1: port 1(veth1) entered disabled state [ 32.024967][ T293] veth1: entered allmulticast mode [ 32.027019][ T293] veth1: entered promiscuous mode [ 32.179860][ T47] br1: port 1(veth1) entered blocking state [ 32.180251][ T47] br1: port 1(veth1) entered forwarding state [ 32.294955][ T295] br1: port 2(veth2) entered blocking state [ 32.295203][ T295] br1: port 2(veth2) entered disabled state [ 32.295456][ T295] veth2: entered allmulticast mode [ 32.297625][ T295] veth2: entered promiscuous mode [ 32.427968][ T48] br1: port 2(veth2) entered blocking state [ 32.428245][ T48] br1: port 2(veth2) entered forwarding state [ 41.985106][ T327] GACT probability NOT on [ 47.450323][ C1] [ 47.450442][ C1] ======================================================== [ 47.450697][ C1] WARNING: possible irq lock inversion dependency detected [ 47.450949][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 47.451122][ C1] -------------------------------------------------------- [ 47.451384][ C1] mausezahn/388 just changed the state of lock: [ 47.451603][ C1] ffff88800883ac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 47.452014][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 47.452254][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 47.452258][ C1] [ 47.452258][ C1] [ 47.452258][ C1] and interrupts could create inverse lock ordering between them. [ 47.452258][ C1] [ 47.452852][ C1] [ 47.452852][ C1] other info that might help us debug this: [ 47.453095][ C1] Chain exists of: [ 47.453095][ C1] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 47.453095][ C1] [ 47.453462][ C1] Possible interrupt unsafe locking scenario: [ 47.453462][ C1] [ 47.453697][ C1] CPU0 CPU1 [ 47.453866][ C1] ---- ---- [ 47.454034][ C1] lock(&p->alloc_lock); [ 47.454164][ C1] local_irq_disable(); [ 47.454372][ C1] lock(&br->lock); [ 47.454585][ C1] lock(lweventlist_lock); [ 47.454817][ C1] [ 47.454944][ C1] lock(&br->lock); [ 47.455070][ C1] [ 47.455070][ C1] *** DEADLOCK *** [ 47.455070][ C1] [ 47.455301][ C1] 2 locks held by mausezahn/388: [ 47.455463][ C1] #0: ffffffff8ef21c90 (remove_cache_srcu){.+.+}-{0:0}, at: kasan_quarantine_reduce+0x85/0x1e0 [ 47.455788][ C1] #1: ffffc900001d8d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 47.456107][ C1] [ 47.456107][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 47.456379][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 47.456551][ C1] HARDIRQ-ON-W at: [ 47.456689][ C1] __lock_acquire+0x797/0x1570 [ 47.456893][ C1] lock_acquire.part.0+0xeb/0x330 [ 47.457090][ C1] _raw_spin_lock+0x30/0x40 [ 47.457291][ C1] set_mems_allowed+0x1d/0x210 [ 47.457496][ C1] kernel_init_freeable+0x72/0x310 [ 47.457697][ C1] kernel_init+0x20/0x200 [ 47.457899][ C1] ret_from_fork+0x31/0x70 [ 47.458101][ C1] ret_from_fork_asm+0x1a/0x30 [ 47.458311][ C1] SOFTIRQ-ON-W at: [ 47.458438][ C1] __lock_acquire+0x797/0x1570 [ 47.458655][ C1] lock_acquire.part.0+0xeb/0x330 [ 47.458867][ C1] _raw_spin_lock+0x30/0x40 [ 47.459083][ C1] set_mems_allowed+0x1d/0x210 [ 47.459297][ C1] kernel_init_freeable+0x72/0x310 [ 47.459494][ C1] kernel_init+0x20/0x200 [ 47.459700][ C1] ret_from_fork+0x31/0x70 [ 47.459896][ C1] ret_from_fork_asm+0x1a/0x30 [ 47.460102][ C1] INITIAL USE at: [ 47.460233][ C1] __lock_acquire+0x797/0x1570 [ 47.460430][ C1] lock_acquire.part.0+0xeb/0x330 [ 47.460625][ C1] _raw_spin_lock+0x30/0x40 [ 47.460820][ C1] set_mems_allowed+0x1d/0x210 [ 47.461018][ C1] kernel_init_freeable+0x72/0x310 [ 47.461215][ C1] kernel_init+0x20/0x200 [ 47.461416][ C1] ret_from_fork+0x31/0x70 [ 47.461615][ C1] ret_from_fork_asm+0x1a/0x30 [ 47.461812][ C1] } [ 47.461896][ C1] ... key at: [] __key.387+0x0/0x40 [ 47.462145][ C1] ... acquired at: [ 47.462273][ C1] __lock_acquire+0xaf0/0x1570 [ 47.462431][ C1] lock_acquire.part.0+0xeb/0x330 [ 47.462587][ C1] _raw_spin_lock+0x30/0x40 [ 47.462750][ C1] __get_task_comm+0x27/0x70 [ 47.462908][ C1] ref_tracker_alloc+0x2ee/0x490 [ 47.463068][ C1] linkwatch_fire_event+0x196/0x200 [ 47.463235][ C1] veth_newlink+0x367/0x830 [veth] [ 47.463398][ C1] rtnl_newlink_create+0x341/0x850 [ 47.463556][ C1] __rtnl_newlink+0xac9/0xd80 [ 47.463713][ C1] rtnl_newlink+0x63/0xa0 [ 47.463869][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 47.464030][ C1] netlink_rcv_skb+0x130/0x360 [ 47.464187][ C1] netlink_unicast+0x449/0x710 [ 47.464346][ C1] netlink_sendmsg+0x723/0xbe0 [ 47.464502][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 47.464660][ C1] ___sys_sendmsg+0xee/0x170 [ 47.464819][ C1] __sys_sendmsg+0xcd/0x170 [ 47.464979][ C1] do_syscall_64+0xc6/0x1e0 [ 47.465137][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 47.465336][ C1] [ 47.465421][ C1] -> (lweventlist_lock){....}-{2:2} { [ 47.465582][ C1] INITIAL USE at: [ 47.465804][ C1] __lock_acquire+0x797/0x1570 [ 47.466000][ C1] lock_acquire.part.0+0xeb/0x330 [ 47.466198][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 47.466393][ C1] linkwatch_sync_dev+0x29/0x1f0 [ 47.466705][ C1] rtnl_getlink+0x4c9/0x970 [ 47.466902][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 47.467099][ C1] netlink_rcv_skb+0x130/0x360 [ 47.467413][ C1] netlink_unicast+0x449/0x710 [ 47.467609][ C1] netlink_sendmsg+0x723/0xbe0 [ 47.467803][ C1] __sys_sendto+0x37d/0x410 [ 47.468007][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 47.468207][ C1] do_syscall_64+0xc6/0x1e0 [ 47.468404][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 47.468643][ C1] } [ 47.468821][ C1] ... key at: [] lweventlist_lock+0x18/0x60 [ 47.469056][ C1] ... acquired at: [ 47.469175][ C1] __lock_acquire+0xaf0/0x1570 [ 47.469337][ C1] lock_acquire.part.0+0xeb/0x330 [ 47.469592][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 47.469750][ C1] linkwatch_fire_event+0x74/0x200 [ 47.469906][ C1] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 47.470151][ C1] br_set_mac_address+0x1f3/0x260 [bridge] [ 47.470483][ C1] dev_set_mac_address+0x28a/0x410 [ 47.470642][ C1] dev_set_mac_address_user+0x31/0x50 [ 47.470802][ C1] do_setlink+0x17b4/0x21e0 [ 47.470958][ C1] rtnl_setlink+0x1f7/0x310 [ 47.471214][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 47.471384][ C1] netlink_rcv_skb+0x130/0x360 [ 47.471541][ C1] netlink_unicast+0x449/0x710 [ 47.471698][ C1] netlink_sendmsg+0x723/0xbe0 [ 47.471867][ C1] __sys_sendto+0x37d/0x410 [ 47.472135][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 47.472344][ C1] do_syscall_64+0xc6/0x1e0 [ 47.472508][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 47.472729][ C1] [ 47.472909][ C1] -> (&br->lock){+.-.}-{2:2} { [ 47.473076][ C1] HARDIRQ-ON-W at: [ 47.473195][ C1] __lock_acquire+0x797/0x1570 [ 47.473410][ C1] lock_acquire.part.0+0xeb/0x330 [ 47.473739][ C1] _raw_spin_lock_bh+0x38/0x50 [ 47.473937][ C1] recalculate_group_addr+0x55/0x130 [bridge] [ 47.474232][ C1] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 47.474611][ C1] br_changelink+0x36c/0x1360 [bridge] [ 47.474848][ C1] br_dev_newlink+0xa5/0x100 [bridge] [ 47.475109][ C1] rtnl_newlink_create+0x341/0x850 [ 47.475316][ C1] __rtnl_newlink+0xac9/0xd80 [ 47.475617][ C1] rtnl_newlink+0x63/0xa0 [ 47.475828][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 47.476036][ C1] netlink_rcv_skb+0x130/0x360 [ 47.476360][ C1] netlink_unicast+0x449/0x710 [ 47.476558][ C1] netlink_sendmsg+0x723/0xbe0 [ 47.476766][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 47.476976][ C1] ___sys_sendmsg+0xee/0x170 [ 47.477176][ C1] __sys_sendmsg+0xcd/0x170 [ 47.477381][ C1] do_syscall_64+0xc6/0x1e0 [ 47.477578][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 47.477914][ C1] IN-SOFTIRQ-W at: [ 47.478034][ C1] __lock_acquire+0x797/0x1570 [ 47.478231][ C1] lock_acquire.part.0+0xeb/0x330 [ 47.478527][ C1] _raw_spin_lock+0x30/0x40 [ 47.478728][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 47.479002][ C1] call_timer_fn+0x13b/0x230 [ 47.479200][ C1] __run_timers+0x545/0x810 [ 47.479506][ C1] run_timer_softirq+0xe8/0x1b0 [ 47.479703][ C1] __do_softirq+0x1f8/0x5df [ 47.479898][ C1] irq_exit_rcu+0x97/0xc0 [ 47.480093][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 47.480333][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 47.480611][ C1] _raw_spin_unlock_irqrestore+0x43/0x70 [ 47.480855][ C1] free_to_partial_list+0x1a5/0x340 [ 47.481052][ C1] qlist_free_all+0x4c/0x140 [ 47.481251][ C1] kasan_quarantine_reduce+0x192/0x1e0 [ 47.481656][ C1] __kasan_slab_alloc+0x49/0x70 [ 47.481853][ C1] kmem_cache_alloc+0xef/0x270 [ 47.482050][ C1] p9_tag_alloc+0x99/0x700 [ 47.482252][ C1] p9_client_prepare_req+0xe6/0x290 [ 47.482550][ C1] p9_client_rpc+0x18d/0x930 [ 47.482756][ C1] p9_client_clunk+0x74/0xe0 [ 47.482951][ C1] v9fs_dentry_release+0xb9/0x140 [ 47.483154][ C1] __dentry_kill+0x1d9/0x4f0 [ 47.483351][ C1] dput.part.0+0x333/0x6c0 [ 47.483550][ C1] walk_component+0x199/0x4f0 [ 47.483855][ C1] link_path_walk.part.0.constprop.0+0x494/0x9f0 [ 47.484097][ C1] path_openat+0x1be/0x440 [ 47.484296][ C1] do_filp_open+0x1b3/0x3e0 [ 47.484497][ C1] do_sys_openat2+0x122/0x160 [ 47.484805][ C1] __x64_sys_openat+0x123/0x1e0 [ 47.485004][ C1] do_syscall_64+0xc6/0x1e0 [ 47.485202][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 47.485542][ C1] INITIAL USE at: [ 47.485660][ C1] __lock_acquire+0x797/0x1570 [ 47.485863][ C1] lock_acquire.part.0+0xeb/0x330 [ 47.486067][ C1] _raw_spin_lock_bh+0x38/0x50 [ 47.486371][ C1] recalculate_group_addr+0x55/0x130 [bridge] [ 47.486664][ C1] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 47.486941][ C1] br_changelink+0x36c/0x1360 [bridge] [ 47.487289][ C1] br_dev_newlink+0xa5/0x100 [bridge] [ 47.487545][ C1] rtnl_newlink_create+0x341/0x850 [ 47.487749][ C1] __rtnl_newlink+0xac9/0xd80 [ 47.488056][ C1] rtnl_newlink+0x63/0xa0 [ 47.488263][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 47.488459][ C1] netlink_rcv_skb+0x130/0x360 [ 47.488757][ C1] netlink_unicast+0x449/0x710 [ 47.488960][ C1] netlink_sendmsg+0x723/0xbe0 [ 47.489163][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 47.489369][ C1] ___sys_sendmsg+0xee/0x170 [ 47.489672][ C1] __sys_sendmsg+0xcd/0x170 [ 47.489871][ C1] do_syscall_64+0xc6/0x1e0 [ 47.490075][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 47.490425][ C1] } [ 47.490504][ C1] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 47.490827][ C1] ... acquired at: [ 47.490944][ C1] mark_lock+0x28d/0x3e0 [ 47.491109][ C1] mark_usage+0xd9/0x2a0 [ 47.491267][ C1] __lock_acquire+0x797/0x1570 [ 47.491422][ C1] lock_acquire.part.0+0xeb/0x330 [ 47.491588][ C1] _raw_spin_lock+0x30/0x40 [ 47.491747][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 47.491986][ C1] call_timer_fn+0x13b/0x230 [ 47.492150][ C1] __run_timers+0x545/0x810 [ 47.492314][ C1] run_timer_softirq+0xe8/0x1b0 [ 47.492577][ C1] __do_softirq+0x1f8/0x5df [ 47.492736][ C1] irq_exit_rcu+0x97/0xc0 [ 47.492895][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 47.493096][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 47.493402][ C1] _raw_spin_unlock_irqrestore+0x43/0x70 [ 47.493599][ C1] free_to_partial_list+0x1a5/0x340 [ 47.493767][ C1] qlist_free_all+0x4c/0x140 [ 47.493927][ C1] kasan_quarantine_reduce+0x192/0x1e0 [ 47.494188][ C1] __kasan_slab_alloc+0x49/0x70 [ 47.494346][ C1] kmem_cache_alloc+0xef/0x270 [ 47.494502][ C1] p9_tag_alloc+0x99/0x700 [ 47.494659][ C1] p9_client_prepare_req+0xe6/0x290 [ 47.494913][ C1] p9_client_rpc+0x18d/0x930 [ 47.495070][ C1] p9_client_clunk+0x74/0xe0 [ 47.495225][ C1] v9fs_dentry_release+0xb9/0x140 [ 47.495389][ C1] __dentry_kill+0x1d9/0x4f0 [ 47.495545][ C1] dput.part.0+0x333/0x6c0 [ 47.495798][ C1] walk_component+0x199/0x4f0 [ 47.495952][ C1] link_path_walk.part.0.constprop.0+0x494/0x9f0 [ 47.496145][ C1] path_openat+0x1be/0x440 [ 47.496302][ C1] do_filp_open+0x1b3/0x3e0 [ 47.496560][ C1] do_sys_openat2+0x122/0x160 [ 47.496771][ C1] __x64_sys_openat+0x123/0x1e0 [ 47.496933][ C1] do_syscall_64+0xc6/0x1e0 [ 47.497090][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 47.497388][ C1] [ 47.497467][ C1] [ 47.497467][ C1] stack backtrace: [ 47.497670][ C1] CPU: 1 PID: 388 Comm: mausezahn Not tainted 6.9.0-rc1-virtme #1 [ 47.497907][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 47.498255][ C1] Call Trace: [ 47.498375][ C1] [ 47.498455][ C1] dump_stack_lvl+0x82/0xd0 [ 47.498619][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 47.498816][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 47.499016][ C1] ? __pfx_usage_skip+0x10/0x10 [ 47.499172][ C1] ? __pfx_usage_match+0x10/0x10 [ 47.499447][ C1] ? arch_stack_walk+0xa2/0xf0 [ 47.499605][ C1] mark_lock_irq+0x4cd/0xa10 [ 47.499776][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 47.499934][ C1] ? stack_trace_save+0x94/0xd0 [ 47.500096][ C1] ? add_chain_cache+0x248/0x8b0 [ 47.500262][ C1] ? save_trace+0x8f/0x5b0 [ 47.500423][ C1] mark_lock+0x28d/0x3e0 [ 47.500545][ C1] mark_usage+0xd9/0x2a0 [ 47.500668][ C1] __lock_acquire+0x797/0x1570 [ 47.500933][ C1] ? __lock_acquire+0xaf0/0x1570 [ 47.501091][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 47.501373][ C1] lock_acquire.part.0+0xeb/0x330 [ 47.501530][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 47.501861][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 47.502019][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 47.502174][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 47.502403][ C1] ? lock_acquire+0x32/0xc0 [ 47.502662][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 47.502898][ C1] _raw_spin_lock+0x30/0x40 [ 47.503068][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 47.503403][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 47.503642][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 47.503911][ C1] call_timer_fn+0x13b/0x230 [ 47.504077][ C1] ? call_timer_fn+0xe8/0x230 [ 47.504334][ C1] ? call_timer_fn+0xe8/0x230 [ 47.504505][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 47.504662][ C1] ? hlock_class+0x4e/0x130 [ 47.504819][ C1] ? mark_held_locks+0x9e/0xe0 [ 47.504979][ C1] __run_timers+0x545/0x810 [ 47.505137][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 47.505417][ C1] ? __pfx___run_timers+0x10/0x10 [ 47.505582][ C1] ? do_raw_spin_lock+0x131/0x270 [ 47.505836][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 47.506000][ C1] ? lock_acquire+0x32/0xc0 [ 47.506156][ C1] ? run_timer_softirq+0xe0/0x1b0 [ 47.506325][ C1] run_timer_softirq+0xe8/0x1b0 [ 47.506703][ C1] __do_softirq+0x1f8/0x5df [ 47.506865][ C1] irq_exit_rcu+0x97/0xc0 [ 47.506987][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 47.507143][ C1] [ 47.507225][ C1] [ 47.507316][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 47.507614][ C1] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70 [ 47.507823][ C1] 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 72 <74> 0e 5b 5d c3 cc cc cc cc e8 4f b3 be fd eb dc 0f 1f 44 00 00 5b [ 47.508480][ C1] RSP: 0018:ffffc9000079f4c8 EFLAGS: 00000286 [ 47.508686][ C1] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff21a5955 [ 47.509035][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8db40911 [ 47.509270][ C1] RBP: ffff888001041080 R08: 0000000000000001 R09: fffffbfff21a38a9 [ 47.509506][ C1] R10: ffffffff90d1c54f R11: 0000000000001000 R12: ffff8880010433c0 [ 47.509847][ C1] R13: ffff888006a84000 R14: 0000000000000286 R15: ffff888001041080 [ 47.510095][ C1] ? _raw_spin_unlock_irqrestore+0x51/0x70 [ 47.510294][ C1] free_to_partial_list+0x1a5/0x340 [ 47.510451][ C1] ? qlist_free_all+0x47/0x140 [ 47.510715][ C1] qlist_free_all+0x4c/0x140 [ 47.510871][ C1] kasan_quarantine_reduce+0x192/0x1e0 [ 47.511037][ C1] __kasan_slab_alloc+0x49/0x70 [ 47.511199][ C1] kmem_cache_alloc+0xef/0x270 [ 47.511458][ C1] ? kernel_text_address+0xce/0xe0 [ 47.511620][ C1] p9_tag_alloc+0x99/0x700 [ 47.511789][ C1] ? __pfx_p9_tag_alloc+0x10/0x10 [ 47.511946][ C1] ? hlock_class+0x4e/0x130 [ 47.512111][ C1] ? validate_chain+0x130/0x9b0 [ 47.512268][ C1] ? hlock_class+0x4e/0x130 [ 47.512424][ C1] p9_client_prepare_req+0xe6/0x290 [ 47.512579][ C1] ? hlock_class+0x4e/0x130 [ 47.512738][ C1] ? __pfx_p9_client_prepare_req+0x10/0x10 [ 47.512933][ C1] ? __lock_acquire+0xaf0/0x1570 [ 47.513092][ C1] p9_client_rpc+0x18d/0x930 [ 47.513253][ C1] ? __pfx_p9_client_rpc+0x10/0x10 [ 47.513518][ C1] ? __lock_release+0x103/0x460 [ 47.513674][ C1] ? list_lru_add+0x76/0x250 [ 47.513833][ C1] ? __pfx___lock_release+0x10/0x10 [ 47.513993][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 47.514151][ C1] ? find_held_lock+0x2c/0x110 [ 47.514412][ C1] ? __lock_release+0x103/0x460 [ 47.514579][ C1] ? __pfx___lock_release+0x10/0x10 [ 47.514745][ C1] p9_client_clunk+0x74/0xe0 [ 47.514908][ C1] v9fs_dentry_release+0xb9/0x140 [ 47.515068][ C1] __dentry_kill+0x1d9/0x4f0 [ 47.515228][ C1] ? __pfx_kfree_link+0x10/0x10 [ 47.515386][ C1] dput.part.0+0x333/0x6c0 [ 47.515549][ C1] walk_component+0x199/0x4f0 [ 47.515808][ C1] link_path_walk.part.0.constprop.0+0x494/0x9f0 [ 47.516008][ C1] ? __pfx_link_path_walk.part.0.constprop.0+0x10/0x10 [ 47.516214][ C1] path_openat+0x1be/0x440 [ 47.516375][ C1] ? __pfx_path_openat+0x10/0x10 [ 47.516642][ C1] ? __lock_acquire+0xaf0/0x1570 [ 47.516805][ C1] do_filp_open+0x1b3/0x3e0 [ 47.516962][ C1] ? __pfx_do_filp_open+0x10/0x10 [ 47.517118][ C1] ? find_held_lock+0x2c/0x110 [ 47.517385][ C1] ? __pfx_kfree_link+0x10/0x10 [ 47.517541][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 47.517697][ C1] ? alloc_fd+0x1f5/0x650 [ 47.517819][ C1] ? do_raw_spin_unlock+0x58/0x220 [ 47.517976][ C1] ? _raw_spin_unlock+0x23/0x40 [ 47.518131][ C1] ? alloc_fd+0x1f5/0x650 [ 47.518254][ C1] do_sys_openat2+0x122/0x160 [ 47.518411][ C1] ? find_held_lock+0x2c/0x110 [ 47.518570][ C1] ? __pfx_do_sys_openat2+0x10/0x10 [ 47.518926][ C1] ? do_user_addr_fault+0x4b8/0xbe0 [ 47.519084][ C1] ? __pfx___lock_release+0x10/0x10 [ 47.519246][ C1] ? __up_read+0x1a7/0x780 [ 47.519402][ C1] __x64_sys_openat+0x123/0x1e0 [ 47.519660][ C1] ? __pfx___x64_sys_openat+0x10/0x10 [ 47.519818][ C1] ? do_user_addr_fault+0x4bd/0xbe0 [ 47.519978][ C1] do_syscall_64+0xc6/0x1e0 [ 47.520134][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 47.520434][ C1] RIP: 0033:0x7f35025230e8 [ 47.520598][ C1] 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 [ 47.521263][ C1] RSP: 002b:00007ffe72668528 EFLAGS: 00000287 ORIG_RAX: 0000000000000101 [ 47.521507][ C1] RAX: ffffffffffffffda RBX: 00007ffe726685ff RCX: 00007f35025230e8 [ 47.521743][ C1] RDX: 0000000000080000 RSI: 00007f35024f4920 RDI: 00000000ffffff9c [ 47.522087][ C1] RBP: 00007ffe72668590 R08: 0000000000080000 R09: 00007f35024f4920 [ 47.522322][ C1] R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000 [ 47.522557][ C1] R13: 00007ffe72668610 R14: 00007f35024f4920 R15: 00007ffe72668610 [ 47.522899][ C1] [ 140.047069][ T1618] br1: port 2(veth2) entered disabled state [ 140.163558][ T1620] veth2: left allmulticast mode [ 140.163728][ T1620] veth2: left promiscuous mode [ 140.163980][ T1620] br1: port 2(veth2) entered disabled state [ 140.265917][ T1621] br1: port 1(veth1) entered disabled state [ 140.368077][ T1622] veth1: left allmulticast mode [ 140.368639][ T1622] veth1: left promiscuous mode [ 140.368900][ T1622] br1: port 1(veth1) entered disabled state