[ 32.108956][ C0] [ 32.109070][ C0] ======================================================== [ 32.109323][ C0] WARNING: possible irq lock inversion dependency detected [ 32.109572][ C0] 6.9.0-rc1-virtme #1 Not tainted [ 32.109739][ C0] -------------------------------------------------------- [ 32.109988][ C0] grep/325 just changed the state of lock: [ 32.110186][ C0] ffff8880068fed80 (&ndev->lock){++-.}-{2:2}, at: addrconf_rs_timer+0xa9/0x730 [ 32.110474][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 32.110728][ C0] (&p->alloc_lock){+.+.}-{2:2} [ 32.110732][ C0] [ 32.110732][ C0] [ 32.110732][ C0] and interrupts could create inverse lock ordering between them. [ 32.110732][ C0] [ 32.111354][ C0] [ 32.111354][ C0] other info that might help us debug this: [ 32.111611][ C0] Possible interrupt unsafe locking scenario: [ 32.111611][ C0] [ 32.111864][ C0] CPU0 CPU1 [ 32.112032][ C0] ---- ---- [ 32.112201][ C0] lock(&p->alloc_lock); [ 32.112333][ C0] local_irq_disable(); [ 32.112547][ C0] lock(&ndev->lock); [ 32.112767][ C0] lock(&p->alloc_lock); [ 32.112974][ C0] [ 32.113103][ C0] lock(&ndev->lock); [ 32.113328][ C0] [ 32.113328][ C0] *** DEADLOCK *** [ 32.113328][ C0] [ 32.113667][ C0] 1 lock held by grep/325: [ 32.113940][ C0] #0: ffffc90000007d68 ((&ndev->rs_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 32.114448][ C0] [ 32.114448][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 32.114742][ C0] -> (&p->alloc_lock){+.+.}-{2:2} { [ 32.115038][ C0] HARDIRQ-ON-W at: [ 32.115168][ C0] __lock_acquire+0x797/0x1570 [ 32.115386][ C0] lock_acquire.part.0+0xeb/0x330 [ 32.115601][ C0] _raw_spin_lock+0x30/0x40 [ 32.115815][ C0] set_mems_allowed+0x1d/0x210 [ 32.116127][ C0] kernel_init_freeable+0x72/0x310 [ 32.116332][ C0] kernel_init+0x20/0x200 [ 32.116542][ C0] ret_from_fork+0x31/0x70 [ 32.116862][ C0] ret_from_fork_asm+0x1a/0x30 [ 32.117076][ C0] SOFTIRQ-ON-W at: [ 32.117202][ C0] __lock_acquire+0x797/0x1570 [ 32.117405][ C0] lock_acquire.part.0+0xeb/0x330 [ 32.117710][ C0] _raw_spin_lock+0x30/0x40 [ 32.118038][ C0] set_mems_allowed+0x1d/0x210 [ 32.118254][ C0] kernel_init_freeable+0x72/0x310 [ 32.118473][ C0] kernel_init+0x20/0x200 [ 32.118677][ C0] ret_from_fork+0x31/0x70 [ 32.118890][ C0] ret_from_fork_asm+0x1a/0x30 [ 32.119102][ C0] INITIAL USE at: [ 32.119232][ C0] __lock_acquire+0x797/0x1570 [ 32.119540][ C0] lock_acquire.part.0+0xeb/0x330 [ 32.119756][ C0] _raw_spin_lock+0x30/0x40 [ 32.119958][ C0] set_mems_allowed+0x1d/0x210 [ 32.120258][ C0] kernel_init_freeable+0x72/0x310 [ 32.120467][ C0] kernel_init+0x20/0x200 [ 32.120787][ C0] ret_from_fork+0x31/0x70 [ 32.121001][ C0] ret_from_fork_asm+0x1a/0x30 [ 32.121214][ C0] } [ 32.121306][ C0] ... key at: [] __key.387+0x0/0x40 [ 32.121553][ C0] ... acquired at: [ 32.121786][ C0] __lock_acquire+0xaf0/0x1570 [ 32.121959][ C0] lock_acquire.part.0+0xeb/0x330 [ 32.122123][ C0] _raw_spin_lock+0x30/0x40 [ 32.122286][ C0] __get_task_comm+0x27/0x70 [ 32.122453][ C0] ref_tracker_alloc+0x2ee/0x490 [ 32.122705][ C0] netdev_get_by_index+0x5e/0x80 [ 32.122869][ C0] fib6_nh_init+0x3d8/0x15b0 [ 32.123031][ C0] ip6_route_info_create+0xf18/0x17d0 [ 32.123194][ C0] ip6_route_add+0x1c/0x140 [ 32.123445][ C0] addrconf_prefix_route+0x1cc/0x2b0 [ 32.123613][ C0] addrconf_permanent_addr+0x32f/0x670 [ 32.123776][ C0] addrconf_notify+0x749/0xd60 [ 32.123938][ C0] notifier_call_chain+0xcd/0x150 [ 32.124194][ C0] __dev_notify_flags+0xe6/0x250 [ 32.124361][ C0] dev_change_flags+0xec/0x160 [ 32.124521][ C0] do_setlink+0x7d6/0x21e0 [ 32.124685][ C0] __rtnl_newlink+0xaa7/0xd80 [ 32.124970][ C0] rtnl_newlink+0x63/0xa0 [ 32.125133][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 32.125295][ C0] netlink_rcv_skb+0x130/0x360 [ 32.125455][ C0] netlink_unicast+0x449/0x710 [ 32.125619][ C0] netlink_sendmsg+0x723/0xbe0 [ 32.125780][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 32.125941][ C0] ___sys_sendmsg+0xee/0x170 [ 32.126102][ C0] __sys_sendmsg+0xcd/0x170 [ 32.126266][ C0] do_syscall_64+0xc6/0x1e0 [ 32.126434][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 32.126632][ C0] [ 32.126713][ C0] -> (&ndev->lock){++-.}-{2:2} { [ 32.126877][ C0] HARDIRQ-ON-W at: [ 32.126996][ C0] __lock_acquire+0x797/0x1570 [ 32.127197][ C0] lock_acquire.part.0+0xeb/0x330 [ 32.127396][ C0] _raw_write_lock_bh+0x38/0x50 [ 32.127608][ C0] addrconf_permanent_addr+0x6e/0x670 [ 32.127941][ C0] addrconf_notify+0x749/0xd60 [ 32.128148][ C0] notifier_call_chain+0xcd/0x150 [ 32.128359][ C0] __dev_notify_flags+0xe6/0x250 [ 32.128666][ C0] dev_change_flags+0xec/0x160 [ 32.128878][ C0] do_setlink+0x7d6/0x21e0 [ 32.129083][ C0] __rtnl_newlink+0xaa7/0xd80 [ 32.129398][ C0] rtnl_newlink+0x63/0xa0 [ 32.129602][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 32.129804][ C0] netlink_rcv_skb+0x130/0x360 [ 32.130012][ C0] netlink_unicast+0x449/0x710 [ 32.130326][ C0] netlink_sendmsg+0x723/0xbe0 [ 32.130643][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 32.130858][ C0] ___sys_sendmsg+0xee/0x170 [ 32.131067][ C0] __sys_sendmsg+0xcd/0x170 [ 32.131372][ C0] do_syscall_64+0xc6/0x1e0 [ 32.131582][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 32.131819][ C0] HARDIRQ-ON-R at: [ 32.131944][ C0] __lock_acquire+0x797/0x1570 [ 32.132255][ C0] lock_acquire.part.0+0xeb/0x330 [ 32.132465][ C0] _raw_read_lock_bh+0x44/0x80 [ 32.132677][ C0] inet6_fill_ifla6_attrs+0x516/0x740 [ 32.132889][ C0] inet6_fill_link_af+0x5e/0xe0 [ 32.133202][ C0] rtnl_fill_ifinfo+0x1612/0x29e0 [ 32.133407][ C0] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 32.133621][ C0] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 32.133984][ C0] rtmsg_ifinfo+0x5b/0xa0 [ 32.134195][ C0] register_netdevice+0x1177/0x1690 [ 32.134509][ C0] register_netdev+0x20/0x40 [ 32.134709][ C0] sit_init_net+0x250/0x4f0 [ 32.134921][ C0] ops_init+0x9b/0x560 [ 32.135097][ C0] register_pernet_operations+0x2db/0x710 [ 32.135346][ C0] register_pernet_device+0x2a/0x60 [ 32.135650][ C0] sit_init+0x23/0xe0 [ 32.135817][ C0] do_one_initcall+0x8d/0x1e0 [ 32.136127][ C0] do_initcalls+0x1b2/0x3e0 [ 32.136338][ C0] kernel_init_freeable+0x232/0x310 [ 32.136558][ C0] kernel_init+0x20/0x200 [ 32.136874][ C0] ret_from_fork+0x31/0x70 [ 32.137087][ C0] ret_from_fork_asm+0x1a/0x30 [ 32.137300][ C0] IN-SOFTIRQ-W at: [ 32.137432][ C0] __lock_acquire+0x797/0x1570 [ 32.137748][ C0] lock_acquire.part.0+0xeb/0x330 [ 32.137959][ C0] _raw_write_lock+0x30/0x40 [ 32.138160][ C0] addrconf_rs_timer+0xa9/0x730 [ 32.138368][ C0] call_timer_fn+0x13b/0x230 [ 32.138582][ C0] __run_timers+0x545/0x810 [ 32.138896][ C0] run_timer_softirq+0xe8/0x1b0 [ 32.139107][ C0] __do_softirq+0x1f8/0x5df [ 32.139409][ C0] irq_exit_rcu+0x97/0xc0 [ 32.139620][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 32.139869][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 32.140220][ C0] _raw_spin_unlock_irqrestore+0x43/0x70 [ 32.140477][ C0] get_partial_node.part.0+0x1c5/0x3a0 [ 32.140694][ C0] ___slab_alloc+0xb70/0x10a0 [ 32.141013][ C0] __kmalloc+0x34c/0x3c0 [ 32.141223][ C0] p9_fcall_init+0x7d/0x1b0 [ 32.141435][ C0] p9_tag_alloc+0x138/0x700 [ 32.141640][ C0] p9_client_prepare_req+0xe6/0x290 [ 32.141944][ C0] p9_client_rpc+0x18d/0x930 [ 32.142159][ C0] p9_client_getattr_dotl+0xb5/0x1a0 [ 32.142363][ C0] v9fs_vfs_getattr_dotl+0x11a/0x370 [ 32.142662][ C0] ovl_getattr+0x46f/0xdd0 [ 32.142871][ C0] vfs_fstat+0x3b/0x80 [ 32.143035][ C0] __do_sys_newfstatat+0x6b/0xc0 [ 32.143234][ C0] do_syscall_64+0xc6/0x1e0 [ 32.143618][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 32.143858][ C0] INITIAL USE at: [ 32.143981][ C0] __lock_acquire+0x797/0x1570 [ 32.144290][ C0] lock_acquire.part.0+0xeb/0x330 [ 32.144495][ C0] _raw_write_lock_bh+0x38/0x50 [ 32.144698][ C0] addrconf_permanent_addr+0x6e/0x670 [ 32.144908][ C0] addrconf_notify+0x749/0xd60 [ 32.145200][ C0] notifier_call_chain+0xcd/0x150 [ 32.145400][ C0] __dev_notify_flags+0xe6/0x250 [ 32.145607][ C0] dev_change_flags+0xec/0x160 [ 32.145907][ C0] do_setlink+0x7d6/0x21e0 [ 32.146109][ C0] __rtnl_newlink+0xaa7/0xd80 [ 32.146312][ C0] rtnl_newlink+0x63/0xa0 [ 32.146519][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 32.146722][ C0] netlink_rcv_skb+0x130/0x360 [ 32.146924][ C0] netlink_unicast+0x449/0x710 [ 32.147127][ C0] netlink_sendmsg+0x723/0xbe0 [ 32.147335][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 32.147538][ C0] ___sys_sendmsg+0xee/0x170 [ 32.147743][ C0] __sys_sendmsg+0xcd/0x170 [ 32.148042][ C0] do_syscall_64+0xc6/0x1e0 [ 32.148357][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 32.148623][ C0] INITIAL READ USE at: [ 32.148747][ C0] __lock_acquire+0x797/0x1570 [ 32.148948][ C0] lock_acquire.part.0+0xeb/0x330 [ 32.149269][ C0] _raw_read_lock_bh+0x44/0x80 [ 32.149485][ C0] inet6_fill_ifla6_attrs+0x516/0x740 [ 32.149731][ C0] inet6_fill_link_af+0x5e/0xe0 [ 32.150045][ C0] rtnl_fill_ifinfo+0x1612/0x29e0 [ 32.150258][ C0] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 32.150507][ C0] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 32.150758][ C0] rtmsg_ifinfo+0x5b/0xa0 [ 32.150966][ C0] register_netdevice+0x1177/0x1690 [ 32.151210][ C0] register_netdev+0x20/0x40 [ 32.151419][ C0] sit_init_net+0x250/0x4f0 [ 32.151624][ C0] ops_init+0x9b/0x560 [ 32.151828][ C0] register_pernet_operations+0x2db/0x710 [ 32.152073][ C0] register_pernet_device+0x2a/0x60 [ 32.152314][ C0] sit_init+0x23/0xe0 [ 32.152522][ C0] do_one_initcall+0x8d/0x1e0 [ 32.152913][ C0] do_initcalls+0x1b2/0x3e0 [ 32.153121][ C0] kernel_init_freeable+0x232/0x310 [ 32.153365][ C0] kernel_init+0x20/0x200 [ 32.153660][ C0] ret_from_fork+0x31/0x70 [ 32.153868][ C0] ret_from_fork_asm+0x1a/0x30 [ 32.154068][ C0] } [ 32.154150][ C0] ... key at: [] __key.36+0x0/0x40 [ 32.154479][ C0] ... acquired at: [ 32.154599][ C0] mark_lock+0x28d/0x3e0 [ 32.154762][ C0] mark_usage+0xd9/0x2a0 [ 32.154929][ C0] __lock_acquire+0x797/0x1570 [ 32.155186][ C0] lock_acquire.part.0+0xeb/0x330 [ 32.155349][ C0] _raw_write_lock+0x30/0x40 [ 32.155515][ C0] addrconf_rs_timer+0xa9/0x730 [ 32.155676][ C0] call_timer_fn+0x13b/0x230 [ 32.155952][ C0] __run_timers+0x545/0x810 [ 32.156121][ C0] run_timer_softirq+0xe8/0x1b0 [ 32.156282][ C0] __do_softirq+0x1f8/0x5df [ 32.156445][ C0] irq_exit_rcu+0x97/0xc0 [ 32.156619][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 32.156822][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 32.157030][ C0] _raw_spin_unlock_irqrestore+0x43/0x70 [ 32.157235][ C0] get_partial_node.part.0+0x1c5/0x3a0 [ 32.157407][ C0] ___slab_alloc+0xb70/0x10a0 [ 32.157576][ C0] __kmalloc+0x34c/0x3c0 [ 32.157742][ C0] p9_fcall_init+0x7d/0x1b0 [ 32.157909][ C0] p9_tag_alloc+0x138/0x700 [ 32.158082][ C0] p9_client_prepare_req+0xe6/0x290 [ 32.158255][ C0] p9_client_rpc+0x18d/0x930 [ 32.158425][ C0] p9_client_getattr_dotl+0xb5/0x1a0 [ 32.158590][ C0] v9fs_vfs_getattr_dotl+0x11a/0x370 [ 32.158761][ C0] ovl_getattr+0x46f/0xdd0 [ 32.158930][ C0] vfs_fstat+0x3b/0x80 [ 32.159059][ C0] __do_sys_newfstatat+0x6b/0xc0 [ 32.159326][ C0] do_syscall_64+0xc6/0x1e0 [ 32.159486][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 32.159690][ C0] [ 32.159771][ C0] [ 32.159771][ C0] stack backtrace: [ 32.159970][ C0] CPU: 0 PID: 325 Comm: grep Not tainted 6.9.0-rc1-virtme #1 [ 32.160214][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 32.160662][ C0] Call Trace: [ 32.160788][ C0] [ 32.160871][ C0] dump_stack_lvl+0x82/0xd0 [ 32.161036][ C0] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 32.161326][ C0] ? kernel_text_address+0xce/0xe0 [ 32.161489][ C0] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 32.161690][ C0] ? __pfx_usage_skip+0x10/0x10 [ 32.161964][ C0] ? __pfx_usage_match+0x10/0x10 [ 32.162127][ C0] ? arch_stack_walk+0xa2/0xf0 [ 32.162290][ C0] mark_lock_irq+0x4cd/0xa10 [ 32.162448][ C0] ? __pfx_mark_lock_irq+0x10/0x10 [ 32.162611][ C0] ? __pfx_stack_trace_save+0x10/0x10 [ 32.162774][ C0] ? save_trace+0x8f/0x5b0 [ 32.162936][ C0] mark_lock+0x28d/0x3e0 [ 32.163058][ C0] ? __pfx_stack_trace_save+0x10/0x10 [ 32.163218][ C0] mark_usage+0xd9/0x2a0 [ 32.163348][ C0] __lock_acquire+0x797/0x1570 [ 32.163511][ C0] ? __pfx_validate_chain+0x10/0x10 [ 32.163671][ C0] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 32.163831][ C0] lock_acquire.part.0+0xeb/0x330 [ 32.163993][ C0] ? addrconf_rs_timer+0xa9/0x730 [ 32.164244][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 32.164404][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 32.164562][ C0] ? addrconf_rs_timer+0xa9/0x730 [ 32.164722][ C0] ? lock_acquire+0x32/0xc0 [ 32.165004][ C0] ? addrconf_rs_timer+0xa9/0x730 [ 32.165162][ C0] _raw_write_lock+0x30/0x40 [ 32.165323][ C0] ? addrconf_rs_timer+0xa9/0x730 [ 32.165485][ C0] addrconf_rs_timer+0xa9/0x730 [ 32.165646][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 32.165808][ C0] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 32.165967][ C0] ? call_timer_fn+0xe8/0x230 [ 32.166129][ C0] ? lock_acquire+0x32/0xc0 [ 32.166294][ C0] ? call_timer_fn+0xe8/0x230 [ 32.166455][ C0] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 32.166615][ C0] call_timer_fn+0x13b/0x230 [ 32.166780][ C0] ? call_timer_fn+0xe8/0x230 [ 32.166941][ C0] ? call_timer_fn+0xe8/0x230 [ 32.167103][ C0] ? __pfx_call_timer_fn+0x10/0x10 [ 32.167262][ C0] ? mark_lock+0x38/0x3e0 [ 32.167387][ C0] __run_timers+0x545/0x810 [ 32.167548][ C0] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 32.167803][ C0] ? __pfx___run_timers+0x10/0x10 [ 32.167970][ C0] ? do_raw_spin_lock+0x131/0x270 [ 32.168132][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 32.168296][ C0] ? lock_acquire+0x32/0xc0 [ 32.168546][ C0] ? run_timer_softirq+0xe0/0x1b0 [ 32.168708][ C0] run_timer_softirq+0xe8/0x1b0 [ 32.168869][ C0] __do_softirq+0x1f8/0x5df [ 32.169035][ C0] irq_exit_rcu+0x97/0xc0 [ 32.169158][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 32.169406][ C0] [ 32.169490][ C0] [ 32.169572][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 32.169777][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70 [ 32.169984][ C0] Code: 10 e8 41 ea 91 fd 48 89 ef e8 79 5a 92 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 e5 61 26 78 <74> 0e 5b 5d c3 cc cc cc cc e8 6f 54 b5 fd eb dc 0f 1f 44 00 00 5b [ 32.170645][ C0] RSP: 0018:ffffc90000c5f6b0 EFLAGS: 00000282 [ 32.170961][ C0] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff132dc01 [ 32.171205][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff87dd67f1 [ 32.171444][ C0] RBP: ffff888001041080 R08: 0000000000000001 R09: fffffbfff132e482 [ 32.171688][ C0] R10: ffffffff89972417 R11: 0000000000001000 R12: ffff888001041080 [ 32.171928][ C0] R13: ffffea0000170e00 R14: ffff8880010433c0 R15: ffff888005c39000 [ 32.172171][ C0] ? _raw_spin_unlock_irqrestore+0x51/0x70 [ 32.172372][ C0] get_partial_node.part.0+0x1c5/0x3a0 [ 32.172531][ C0] ___slab_alloc+0xb70/0x10a0 [ 32.172687][ C0] ? fs_reclaim_acquire+0xb3/0x170 [ 32.172848][ C0] ? p9_fcall_init+0x7d/0x1b0 [ 32.173008][ C0] ? __pfx___lock_release+0x10/0x10 [ 32.173169][ C0] ? p9_fcall_init+0x7d/0x1b0 [ 32.173327][ C0] ? __kmalloc+0x34c/0x3c0 [ 32.173483][ C0] __kmalloc+0x34c/0x3c0 [ 32.173607][ C0] p9_fcall_init+0x7d/0x1b0 [ 32.173858][ C0] p9_tag_alloc+0x138/0x700 [ 32.174019][ C0] ? __pfx_p9_tag_alloc+0x10/0x10 [ 32.174178][ C0] ? __pfx_stack_trace_save+0x10/0x10 [ 32.174340][ C0] ? stack_depot_save_flags+0x45/0x530 [ 32.174590][ C0] ? hlock_class+0x4e/0x130 [ 32.174752][ C0] p9_client_prepare_req+0xe6/0x290 [ 32.174918][ C0] ? kasan_save_track+0x14/0x30 [ 32.175077][ C0] ? __kasan_kmalloc+0x7f/0x90 [ 32.175416][ C0] ? __pfx_p9_client_prepare_req+0x10/0x10 [ 32.175616][ C0] ? vfs_fstat+0x3b/0x80 [ 32.175741][ C0] p9_client_rpc+0x18d/0x930 [ 32.175901][ C0] ? __lock_release+0x103/0x460 [ 32.176152][ C0] ? __pfx___lock_release+0x10/0x10 [ 32.176313][ C0] ? __pfx_p9_client_rpc+0x10/0x10 [ 32.176473][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 32.176636][ C0] ? __create_object+0x5e/0xb0 [ 32.176798][ C0] ? trace_kmalloc+0x2a/0xe0 [ 32.177075][ C0] p9_client_getattr_dotl+0xb5/0x1a0 [ 32.177235][ C0] v9fs_vfs_getattr_dotl+0x11a/0x370 [ 32.177395][ C0] ovl_getattr+0x46f/0xdd0 [ 32.177557][ C0] ? __pfx_ovl_getattr+0x10/0x10 [ 32.177718][ C0] ? find_held_lock+0x2c/0x110 [ 32.177878][ C0] ? __lock_release+0x103/0x460 [ 32.178037][ C0] ? __might_fault+0x11b/0x170 [ 32.178199][ C0] ? __pfx___lock_release+0x10/0x10 [ 32.178360][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 32.178519][ C0] ? __might_fault+0xc3/0x170 [ 32.178677][ C0] ? lock_acquire+0x32/0xc0 [ 32.178836][ C0] ? __might_fault+0xc3/0x170 [ 32.178997][ C0] ? vfs_getattr_nosec+0x77/0x340 [ 32.179159][ C0] vfs_fstat+0x3b/0x80 [ 32.179279][ C0] __do_sys_newfstatat+0x6b/0xc0 [ 32.179437][ C0] ? __pfx___do_sys_newfstatat+0x10/0x10 [ 32.179601][ C0] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 32.179887][ C0] do_syscall_64+0xc6/0x1e0 [ 32.180047][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 32.180242][ C0] RIP: 0033:0x7f1d26e30eae [ 32.180405][ C0] Code: 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 07 00 00 00 0f 1f 80 00 00 00 00 f3 0f 1e fa 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 0b 31 c0 c3 0f 1f 84 00 00 00 00 00 f7 d8 89 05 [ 32.181054][ C0] RSP: 002b:00007ffcd04919b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000106 [ 32.181383][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1d26e30eae [ 32.181621][ C0] RDX: 00007ffcd0491a50 RSI: 00007f1d26e34cfb RDI: 0000000000000005 [ 32.181856][ C0] RBP: 00007ffcd0491b10 R08: 00007f1d26e02920 R09: 00007f1d26e40220 [ 32.182185][ C0] R10: 0000000000001000 R11: 0000000000000206 R12: 00007f1d26e40220 [ 32.182426][ C0] R13: 00007ffcd0491bb0 R14: 00007f1d26e3f000 R15: 00007ffcd0491bb0 [ 32.182668][ C0] [ 51.675109][ T700] pm_nl_ctl (700) used greatest stack depth: 23800 bytes left