[ 27.890726][ T284] br1: port 1(veth1) entered blocking state [ 27.891126][ T284] br1: port 1(veth1) entered disabled state [ 27.891436][ T284] veth1: entered allmulticast mode [ 27.893389][ T284] veth1: entered promiscuous mode [ 27.901114][ T284] ip (284) used greatest stack depth: 24192 bytes left [ 28.145716][ T287] br1: port 2(veth2) entered blocking state [ 28.146450][ T287] br1: port 2(veth2) entered disabled state [ 28.146692][ T287] veth2: entered allmulticast mode [ 28.148576][ T287] veth2: entered promiscuous mode [ 28.384053][ T289] br1: port 2(veth2) entered blocking state [ 28.384391][ T289] br1: port 2(veth2) entered forwarding state [ 28.385000][ T289] br1: port 1(veth1) entered blocking state [ 28.385223][ T289] br1: port 1(veth1) entered forwarding state [ 35.286005][ T315] GACT probability NOT on [ 43.816900][ C2] [ 43.817034][ C2] ======================================================== [ 43.817302][ C2] WARNING: possible irq lock inversion dependency detected [ 43.817560][ C2] 6.9.0-rc1-virtme #1 Not tainted [ 43.817736][ C2] -------------------------------------------------------- [ 43.817990][ C2] mausezahn/437 just changed the state of lock: [ 43.818208][ C2] ffff888005802c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.818635][ C2] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 43.818895][ C2] (&p->alloc_lock){+.+.}-{2:2} [ 43.818899][ C2] [ 43.818899][ C2] [ 43.818899][ C2] and interrupts could create inverse lock ordering between them. [ 43.818899][ C2] [ 43.819545][ C2] [ 43.819545][ C2] other info that might help us debug this: [ 43.819805][ C2] Chain exists of: [ 43.819805][ C2] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 43.819805][ C2] [ 43.820211][ C2] Possible interrupt unsafe locking scenario: [ 43.820211][ C2] [ 43.820470][ C2] CPU0 CPU1 [ 43.820649][ C2] ---- ---- [ 43.820826][ C2] lock(&p->alloc_lock); [ 43.820960][ C2] local_irq_disable(); [ 43.821178][ C2] lock(&br->lock); [ 43.821402][ C2] lock(lweventlist_lock); [ 43.821621][ C2] [ 43.821755][ C2] lock(&br->lock); [ 43.821889][ C2] [ 43.821889][ C2] *** DEADLOCK *** [ 43.821889][ C2] [ 43.822142][ C2] 1 lock held by mausezahn/437: [ 43.822321][ C2] #0: ffffc90000230b68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 43.822694][ C2] [ 43.822694][ C2] the shortest dependencies between 2nd lock and 1st lock: [ 43.823003][ C2] -> (&p->alloc_lock){+.+.}-{2:2} { [ 43.823183][ C2] HARDIRQ-ON-W at: [ 43.823317][ C2] __lock_acquire+0x797/0x1570 [ 43.823574][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.823798][ C2] _raw_spin_lock+0x30/0x40 [ 43.824028][ C2] set_mems_allowed+0x1d/0x210 [ 43.824252][ C2] kernel_init_freeable+0x72/0x310 [ 43.824474][ C2] kernel_init+0x20/0x200 [ 43.824700][ C2] ret_from_fork+0x31/0x70 [ 43.824928][ C2] ret_from_fork_asm+0x1a/0x30 [ 43.825158][ C2] SOFTIRQ-ON-W at: [ 43.825296][ C2] __lock_acquire+0x797/0x1570 [ 43.825517][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.825737][ C2] _raw_spin_lock+0x30/0x40 [ 43.825956][ C2] set_mems_allowed+0x1d/0x210 [ 43.826179][ C2] kernel_init_freeable+0x72/0x310 [ 43.826398][ C2] kernel_init+0x20/0x200 [ 43.826621][ C2] ret_from_fork+0x31/0x70 [ 43.826842][ C2] ret_from_fork_asm+0x1a/0x30 [ 43.827062][ C2] INITIAL USE at: [ 43.827194][ C2] __lock_acquire+0x797/0x1570 [ 43.827414][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.827637][ C2] _raw_spin_lock+0x30/0x40 [ 43.827857][ C2] set_mems_allowed+0x1d/0x210 [ 43.828081][ C2] kernel_init_freeable+0x72/0x310 [ 43.828299][ C2] kernel_init+0x20/0x200 [ 43.828522][ C2] ret_from_fork+0x31/0x70 [ 43.828745][ C2] ret_from_fork_asm+0x1a/0x30 [ 43.828966][ C2] } [ 43.829058][ C2] ... key at: [] __key.387+0x0/0x40 [ 43.829338][ C2] ... acquired at: [ 43.829471][ C2] __lock_acquire+0xaf0/0x1570 [ 43.829650][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.829827][ C2] _raw_spin_lock+0x30/0x40 [ 43.830002][ C2] __get_task_comm+0x27/0x70 [ 43.830182][ C2] ref_tracker_alloc+0x2ee/0x490 [ 43.830362][ C2] linkwatch_fire_event+0x196/0x200 [ 43.830544][ C2] veth_newlink+0x367/0x830 [veth] [ 43.830731][ C2] rtnl_newlink_create+0x341/0x850 [ 43.830906][ C2] __rtnl_newlink+0xac9/0xd80 [ 43.831085][ C2] rtnl_newlink+0x63/0xa0 [ 43.831264][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.831442][ C2] netlink_rcv_skb+0x130/0x360 [ 43.831624][ C2] netlink_unicast+0x449/0x710 [ 43.831801][ C2] netlink_sendmsg+0x723/0xbe0 [ 43.831977][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 43.832160][ C2] ___sys_sendmsg+0xee/0x170 [ 43.832344][ C2] __sys_sendmsg+0xcd/0x170 [ 43.832522][ C2] do_syscall_64+0xc6/0x1e0 [ 43.832700][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.832925][ C2] [ 43.833014][ C2] -> (lweventlist_lock){....}-{2:2} { [ 43.833195][ C2] INITIAL USE at: [ 43.833328][ C2] __lock_acquire+0x797/0x1570 [ 43.833564][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.833787][ C2] _raw_spin_lock_irqsave+0x3f/0x60 [ 43.834006][ C2] linkwatch_sync_dev+0x29/0x1f0 [ 43.834225][ C2] rtnl_getlink+0x4c9/0x970 [ 43.834448][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.834670][ C2] netlink_rcv_skb+0x130/0x360 [ 43.834889][ C2] netlink_unicast+0x449/0x710 [ 43.835113][ C2] netlink_sendmsg+0x723/0xbe0 [ 43.835334][ C2] __sys_sendto+0x37d/0x410 [ 43.835564][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 43.835788][ C2] do_syscall_64+0xc6/0x1e0 [ 43.836007][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.836266][ C2] } [ 43.836356][ C2] ... key at: [] lweventlist_lock+0x18/0x60 [ 43.836618][ C2] ... acquired at: [ 43.836749][ C2] __lock_acquire+0xaf0/0x1570 [ 43.836925][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.837100][ C2] _raw_spin_lock_irqsave+0x3f/0x60 [ 43.837274][ C2] linkwatch_fire_event+0x74/0x200 [ 43.837449][ C2] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 43.837730][ C2] br_set_mac_address+0x1f3/0x260 [bridge] [ 43.837978][ C2] dev_set_mac_address+0x28a/0x410 [ 43.838155][ C2] dev_set_mac_address_user+0x31/0x50 [ 43.838438][ C2] do_setlink+0x17b4/0x21e0 [ 43.838610][ C2] rtnl_setlink+0x1f7/0x310 [ 43.838782][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.838954][ C2] netlink_rcv_skb+0x130/0x360 [ 43.839127][ C2] netlink_unicast+0x449/0x710 [ 43.839406][ C2] netlink_sendmsg+0x723/0xbe0 [ 43.839580][ C2] __sys_sendto+0x37d/0x410 [ 43.839753][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 43.839926][ C2] do_syscall_64+0xc6/0x1e0 [ 43.840205][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.840421][ C2] [ 43.840508][ C2] -> (&br->lock){+.-.}-{2:2} { [ 43.840689][ C2] HARDIRQ-ON-W at: [ 43.840820][ C2] __lock_acquire+0x797/0x1570 [ 43.841255][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.841473][ C2] _raw_spin_lock_bh+0x38/0x50 [ 43.841693][ C2] br_set_mac_address+0xd2/0x260 [bridge] [ 43.842098][ C2] dev_set_mac_address+0x28a/0x410 [ 43.842316][ C2] dev_set_mac_address_user+0x31/0x50 [ 43.842538][ C2] do_setlink+0x17b4/0x21e0 [ 43.842874][ C2] rtnl_setlink+0x1f7/0x310 [ 43.843095][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.843317][ C2] netlink_rcv_skb+0x130/0x360 [ 43.843552][ C2] netlink_unicast+0x449/0x710 [ 43.843800][ C2] netlink_sendmsg+0x723/0xbe0 [ 43.844003][ C2] __sys_sendto+0x37d/0x410 [ 43.844206][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 43.844523][ C2] do_syscall_64+0xc6/0x1e0 [ 43.844726][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.844971][ C2] IN-SOFTIRQ-W at: [ 43.845094][ C2] __lock_acquire+0x797/0x1570 [ 43.845410][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.845620][ C2] _raw_spin_lock+0x30/0x40 [ 43.845829][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.846231][ C2] call_timer_fn+0x13b/0x230 [ 43.846438][ C2] __run_timers+0x545/0x810 [ 43.846645][ C2] timer_expire_remote+0x9b/0xe0 [ 43.846966][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 43.847173][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 43.847380][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 43.847585][ C2] __do_softirq+0x1f8/0x5df [ 43.847789][ C2] irq_exit_rcu+0x97/0xc0 [ 43.847996][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.848239][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.848591][ C2] kasan_report+0x28/0xf0 [ 43.848798][ C2] memchr_inv+0x1f4/0x260 [ 43.849013][ C2] check_bytes_and_report+0x5d/0x150 [ 43.849330][ C2] check_object+0x141/0x370 [ 43.849536][ C2] alloc_debug_processing+0xa5/0x1b0 [ 43.849739][ C2] ___slab_alloc+0x92e/0x10a0 [ 43.850052][ C2] __kmalloc+0x34c/0x3c0 [ 43.850265][ C2] p9_fcall_init+0x7d/0x1b0 [ 43.850476][ C2] p9_tag_alloc+0x1bd/0x700 [ 43.850683][ C2] p9_client_prepare_req+0xe6/0x290 [ 43.851000][ C2] p9_client_rpc+0x18d/0x930 [ 43.851206][ C2] p9_client_readlink+0x71/0x120 [ 43.851411][ C2] v9fs_vfs_get_link_dotl+0x94/0x1b0 [ 43.851618][ C2] pick_link+0x8b4/0x1160 [ 43.851829][ C2] step_into+0x84e/0xfa0 [ 43.852035][ C2] link_path_walk.part.0.constprop.0+0x56a/0x9f0 [ 43.852388][ C2] path_openat+0x1be/0x440 [ 43.852595][ C2] do_filp_open+0x1b3/0x3e0 [ 43.852806][ C2] do_sys_openat2+0x122/0x160 [ 43.853012][ C2] __x64_sys_openat+0x123/0x1e0 [ 43.853328][ C2] do_syscall_64+0xc6/0x1e0 [ 43.853561][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.853806][ C2] INITIAL USE at: [ 43.854147][ C2] __lock_acquire+0x797/0x1570 [ 43.854354][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.854557][ C2] _raw_spin_lock_bh+0x38/0x50 [ 43.854762][ C2] br_set_mac_address+0xd2/0x260 [bridge] [ 43.855158][ C2] dev_set_mac_address+0x28a/0x410 [ 43.855365][ C2] dev_set_mac_address_user+0x31/0x50 [ 43.855603][ C2] do_setlink+0x17b4/0x21e0 [ 43.855944][ C2] rtnl_setlink+0x1f7/0x310 [ 43.856170][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.856389][ C2] netlink_rcv_skb+0x130/0x360 [ 43.856621][ C2] netlink_unicast+0x449/0x710 [ 43.856854][ C2] netlink_sendmsg+0x723/0xbe0 [ 43.857085][ C2] __sys_sendto+0x37d/0x410 [ 43.857318][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 43.857716][ C2] do_syscall_64+0xc6/0x1e0 [ 43.857950][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.858232][ C2] } [ 43.858328][ C2] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 43.858848][ C2] ... acquired at: [ 43.858989][ C2] mark_lock+0x28d/0x3e0 [ 43.859180][ C2] mark_usage+0xd9/0x2a0 [ 43.859481][ C2] __lock_acquire+0x797/0x1570 [ 43.859672][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.859860][ C2] _raw_spin_lock+0x30/0x40 [ 43.860043][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.860422][ C2] call_timer_fn+0x13b/0x230 [ 43.860613][ C2] __run_timers+0x545/0x810 [ 43.860819][ C2] timer_expire_remote+0x9b/0xe0 [ 43.860995][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 43.861170][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 43.861450][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 43.861630][ C2] __do_softirq+0x1f8/0x5df [ 43.861802][ C2] irq_exit_rcu+0x97/0xc0 [ 43.861981][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.862303][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.862522][ C2] kasan_report+0x28/0xf0 [ 43.862697][ C2] memchr_inv+0x1f4/0x260 [ 43.862877][ C2] check_bytes_and_report+0x5d/0x150 [ 43.863160][ C2] check_object+0x141/0x370 [ 43.863334][ C2] alloc_debug_processing+0xa5/0x1b0 [ 43.863526][ C2] ___slab_alloc+0x92e/0x10a0 [ 43.863707][ C2] __kmalloc+0x34c/0x3c0 [ 43.863995][ C2] p9_fcall_init+0x7d/0x1b0 [ 43.864168][ C2] p9_tag_alloc+0x1bd/0x700 [ 43.864342][ C2] p9_client_prepare_req+0xe6/0x290 [ 43.864516][ C2] p9_client_rpc+0x18d/0x930 [ 43.864688][ C2] p9_client_readlink+0x71/0x120 [ 43.864863][ C2] v9fs_vfs_get_link_dotl+0x94/0x1b0 [ 43.865040][ C2] pick_link+0x8b4/0x1160 [ 43.865219][ C2] step_into+0x84e/0xfa0 [ 43.865502][ C2] link_path_walk.part.0.constprop.0+0x56a/0x9f0 [ 43.865721][ C2] path_openat+0x1be/0x440 [ 43.865894][ C2] do_filp_open+0x1b3/0x3e0 [ 43.866070][ C2] do_sys_openat2+0x122/0x160 [ 43.866353][ C2] __x64_sys_openat+0x123/0x1e0 [ 43.866530][ C2] do_syscall_64+0xc6/0x1e0 [ 43.866706][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.866926][ C2] [ 43.867021][ C2] [ 43.867021][ C2] stack backtrace: [ 43.867347][ C2] CPU: 2 PID: 437 Comm: mausezahn Not tainted 6.9.0-rc1-virtme #1 [ 43.867615][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 43.868229][ C2] Call Trace: [ 43.868363][ C2] [ 43.868457][ C2] dump_stack_lvl+0x82/0xd0 [ 43.868636][ C2] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 43.868863][ C2] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 43.869197][ C2] ? __pfx_usage_skip+0x10/0x10 [ 43.869373][ C2] ? __pfx_usage_match+0x10/0x10 [ 43.869548][ C2] ? arch_stack_walk+0xa2/0xf0 [ 43.869724][ C2] mark_lock_irq+0x4cd/0xa10 [ 43.870005][ C2] ? __pfx_mark_lock_irq+0x10/0x10 [ 43.870183][ C2] ? stack_trace_save+0x94/0xd0 [ 43.870358][ C2] ? add_chain_cache+0x248/0x8b0 [ 43.870552][ C2] ? save_trace+0x8f/0x5b0 [ 43.870727][ C2] mark_lock+0x28d/0x3e0 [ 43.870854][ C2] mark_usage+0xd9/0x2a0 [ 43.870988][ C2] __lock_acquire+0x797/0x1570 [ 43.871165][ C2] ? __lock_acquire+0xaf0/0x1570 [ 43.871343][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.871756][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.871933][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.872200][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 43.872487][ C2] ? trace_lock_acquire+0x135/0x1c0 [ 43.872666][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.872924][ C2] ? lock_acquire+0x32/0xc0 [ 43.873097][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.873479][ C2] _raw_spin_lock+0x30/0x40 [ 43.873657][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.873916][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.874174][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.874582][ C2] call_timer_fn+0x13b/0x230 [ 43.874758][ C2] ? call_timer_fn+0xe8/0x230 [ 43.874931][ C2] ? call_timer_fn+0xe8/0x230 [ 43.875105][ C2] ? __pfx_call_timer_fn+0x10/0x10 [ 43.875388][ C2] ? mark_lock+0x38/0x3e0 [ 43.875529][ C2] __run_timers+0x545/0x810 [ 43.875703][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.875988][ C2] ? __pfx___run_timers+0x10/0x10 [ 43.876270][ C2] ? __lock_release+0x103/0x460 [ 43.876444][ C2] ? do_raw_spin_lock+0x131/0x270 [ 43.876621][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 43.876796][ C2] ? lock_acquire+0x32/0xc0 [ 43.877080][ C2] ? timer_expire_remote+0x93/0xe0 [ 43.877261][ C2] timer_expire_remote+0x9b/0xe0 [ 43.877439][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 43.877630][ C2] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10 [ 43.877970][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 43.878148][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 43.878324][ C2] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 43.878500][ C2] __do_softirq+0x1f8/0x5df [ 43.878679][ C2] irq_exit_rcu+0x97/0xc0 [ 43.878816][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.878988][ C2] [ 43.879073][ C2] [ 43.879163][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.879487][ C2] RIP: 0010:kasan_report+0x28/0xf0 [ 43.879666][ C2] Code: 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca 65 4c 8b 3d 2f 7c cb 7b 41 8b 87 a8 14 00 00 <85> c0 0f 85 b7 00 00 00 48 89 fd 49 89 f6 89 d3 49 89 cd e8 f0 f6 [ 43.880405][ C2] RSP: 0018:ffffc9000090f208 EFLAGS: 00000282 [ 43.880631][ C2] RAX: 00000000ffffffff RBX: ffff888009995950 RCX: ffffffff8623b764 [ 43.880892][ C2] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888009995950 [ 43.881262][ C2] RBP: 0000000000001f98 R08: ffff888009994064 R09: 000000000000005a [ 43.881530][ C2] R10: 0000000000000008 R11: 0000000000002000 R12: 5a5a5a5a5a5a5a5a [ 43.881812][ C2] R13: 000000000000005a R14: dffffc0000000000 R15: ffff8880057d45c0 [ 43.882298][ C2] ? memchr_inv+0x1f4/0x260 [ 43.882481][ C2] ? __alloc_pages+0x1f5/0x370 [ 43.882662][ C2] memchr_inv+0x1f4/0x260 [ 43.882794][ C2] check_bytes_and_report+0x5d/0x150 [ 43.883068][ C2] check_object+0x141/0x370 [ 43.883248][ C2] alloc_debug_processing+0xa5/0x1b0 [ 43.883438][ C2] ___slab_alloc+0x92e/0x10a0 [ 43.883617][ C2] ? fs_reclaim_acquire+0xb3/0x170 [ 43.883797][ C2] ? p9_fcall_init+0x7d/0x1b0 [ 43.884089][ C2] ? p9_fcall_init+0x7d/0x1b0 [ 43.884263][ C2] ? __kmalloc+0x34c/0x3c0 [ 43.884436][ C2] __kmalloc+0x34c/0x3c0 [ 43.884572][ C2] p9_fcall_init+0x7d/0x1b0 [ 43.884859][ C2] p9_tag_alloc+0x1bd/0x700 [ 43.885044][ C2] ? __pfx_p9_tag_alloc+0x10/0x10 [ 43.885227][ C2] ? mark_lock+0x38/0x3e0 [ 43.885361][ C2] ? __lock_acquire+0xaf0/0x1570 [ 43.885542][ C2] p9_client_prepare_req+0xe6/0x290 [ 43.885720][ C2] ? __pfx_p9_client_prepare_req+0x10/0x10 [ 43.885931][ C2] ? find_held_lock+0x2c/0x110 [ 43.886112][ C2] p9_client_rpc+0x18d/0x930 [ 43.886290][ C2] ? do_raw_spin_lock+0x131/0x270 [ 43.886577][ C2] ? __pfx_p9_client_rpc+0x10/0x10 [ 43.886762][ C2] ? v9fs_fid_find+0x1af/0x290 [ 43.886942][ C2] ? do_raw_spin_unlock+0x58/0x220 [ 43.887119][ C2] ? _raw_spin_unlock+0x23/0x40 [ 43.887406][ C2] ? __pfx_v9fs_fid_find+0x10/0x10 [ 43.887586][ C2] ? __pfx_make_vfsgid+0x10/0x10 [ 43.887765][ C2] ? v9fs_fid_add+0xf8/0x190 [ 43.887946][ C2] p9_client_readlink+0x71/0x120 [ 43.888232][ C2] v9fs_vfs_get_link_dotl+0x94/0x1b0 [ 43.888412][ C2] ? __pfx_v9fs_vfs_get_link_dotl+0x10/0x10 [ 43.888641][ C2] ? __lookup_slow+0x209/0x3c0 [ 43.888822][ C2] pick_link+0x8b4/0x1160 [ 43.889064][ C2] ? find_held_lock+0x2c/0x110 [ 43.889242][ C2] step_into+0x84e/0xfa0 [ 43.889377][ C2] ? __up_read+0x1a7/0x780 [ 43.889554][ C2] ? __pfx_step_into+0x10/0x10 [ 43.889731][ C2] ? walk_component+0x2b6/0x4f0 [ 43.890019][ C2] link_path_walk.part.0.constprop.0+0x56a/0x9f0 [ 43.890245][ C2] ? __pfx_link_path_walk.part.0.constprop.0+0x10/0x10 [ 43.890468][ C2] path_openat+0x1be/0x440 [ 43.890646][ C2] ? __pfx_path_openat+0x10/0x10 [ 43.890823][ C2] ? __lock_acquire+0xaf0/0x1570 [ 43.891003][ C2] do_filp_open+0x1b3/0x3e0 [ 43.891178][ C2] ? __pfx_do_filp_open+0x10/0x10 [ 43.891355][ C2] ? find_held_lock+0x2c/0x110 [ 43.891645][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 43.891821][ C2] ? alloc_fd+0x1f5/0x650 [ 43.891961][ C2] ? do_raw_spin_unlock+0x58/0x220 [ 43.892140][ C2] ? _raw_spin_unlock+0x23/0x40 [ 43.892423][ C2] ? alloc_fd+0x1f5/0x650 [ 43.892560][ C2] do_sys_openat2+0x122/0x160 [ 43.892737][ C2] ? vfs_fstatat+0x9e/0xc0 [ 43.892915][ C2] ? __pfx_do_sys_openat2+0x10/0x10 [ 43.893091][ C2] ? __pfx___do_sys_newfstatat+0x10/0x10 [ 43.893379][ C2] __x64_sys_openat+0x123/0x1e0 [ 43.893613][ C2] ? __pfx___x64_sys_openat+0x10/0x10 [ 43.893791][ C2] ? __pfx_do_faccessat+0x10/0x10 [ 43.893971][ C2] do_syscall_64+0xc6/0x1e0 [ 43.894256][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.894475][ C2] RIP: 0033:0x7f83f73090e8 [ 43.894657][ C2] 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 [ 43.895396][ C2] RSP: 002b:00007fff2cb09b38 EFLAGS: 00000287 ORIG_RAX: 0000000000000101 [ 43.895663][ C2] RAX: ffffffffffffffda RBX: 00007fff2cb09dcf RCX: 00007f83f73090e8 [ 43.896142][ C2] RDX: 0000000000080000 RSI: 00007fff2cb09bb0 RDI: 00000000ffffff9c [ 43.896412][ C2] RBP: 00007fff2cb09ba0 R08: 0000000000080000 R09: 00007fff2cb09bb0 [ 43.896689][ C2] R10: 0000000000000000 R11: 0000000000000287 R12: 00007fff2cb09bb7 [ 43.897063][ C2] R13: 00007fff2cb09de0 R14: 00007fff2cb09bb0 R15: 00007f83f72da000 [ 43.897329][ C2] [ 50.665178][ T549] br1: port 2(veth2) entered disabled state [ 50.665751][ T549] br1: port 1(veth1) entered disabled state [ 50.856997][ T551] veth2: left allmulticast mode [ 50.857175][ T551] veth2: left promiscuous mode [ 50.857428][ T551] br1: port 2(veth2) entered disabled state [ 51.063004][ T553] veth1: left allmulticast mode [ 51.063183][ T553] veth1: left promiscuous mode [ 51.063449][ T553] br1: port 1(veth1) entered disabled state