[ 136.312847][ T890] ip (890) used greatest stack depth: 23472 bytes left [ 142.185829][ C0] [ 142.185933][ C0] ======================================================== [ 142.186266][ C0] WARNING: possible irq lock inversion dependency detected [ 142.186495][ C0] 6.9.0-rc1-virtme #1 Not tainted [ 142.186738][ C0] -------------------------------------------------------- [ 142.187061][ C0] grep/954 just changed the state of lock: [ 142.187253][ C0] ffff8880057d0d80 (&ndev->lock){++-.}-{2:2}, at: addrconf_rs_timer+0xa9/0x730 [ 142.187529][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 142.187853][ C0] (&p->alloc_lock){+.+.}-{2:2} [ 142.187857][ C0] [ 142.187857][ C0] [ 142.187857][ C0] and interrupts could create inverse lock ordering between them. [ 142.187857][ C0] [ 142.188612][ C0] [ 142.188612][ C0] other info that might help us debug this: [ 142.188932][ C0] Possible interrupt unsafe locking scenario: [ 142.188932][ C0] [ 142.189167][ C0] CPU0 CPU1 [ 142.189318][ C0] ---- ---- [ 142.189470][ C0] lock(&p->alloc_lock); [ 142.189589][ C0] local_irq_disable(); [ 142.189876][ C0] lock(&ndev->lock); [ 142.190071][ C0] lock(&p->alloc_lock); [ 142.190259][ C0] [ 142.190381][ C0] lock(&ndev->lock); [ 142.190598][ C0] [ 142.190598][ C0] *** DEADLOCK *** [ 142.190598][ C0] [ 142.190817][ C0] 1 lock held by grep/954: [ 142.190972][ C0] #0: ffffc90000007d68 ((&ndev->rs_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 142.191352][ C0] [ 142.191352][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 142.191720][ C0] -> (&p->alloc_lock){+.+.}-{2:2} { [ 142.192071][ C0] HARDIRQ-ON-W at: [ 142.192283][ C0] __lock_acquire+0x797/0x1570 [ 142.192486][ C0] lock_acquire.part.0+0xeb/0x330 [ 142.192777][ C0] _raw_spin_lock+0x30/0x40 [ 142.193077][ C0] set_mems_allowed+0x1d/0x210 [ 142.193276][ C0] kernel_init_freeable+0x72/0x310 [ 142.193468][ C0] kernel_init+0x20/0x200 [ 142.193661][ C0] ret_from_fork+0x31/0x70 [ 142.193976][ C0] ret_from_fork_asm+0x1a/0x30 [ 142.194169][ C0] SOFTIRQ-ON-W at: [ 142.194283][ C0] __lock_acquire+0x797/0x1570 [ 142.194472][ C0] lock_acquire.part.0+0xeb/0x330 [ 142.194668][ C0] _raw_spin_lock+0x30/0x40 [ 142.194859][ C0] set_mems_allowed+0x1d/0x210 [ 142.195244][ C0] kernel_init_freeable+0x72/0x310 [ 142.195431][ C0] kernel_init+0x20/0x200 [ 142.195622][ C0] ret_from_fork+0x31/0x70 [ 142.195811][ C0] ret_from_fork_asm+0x1a/0x30 [ 142.195999][ C0] INITIAL USE at: [ 142.196112][ C0] __lock_acquire+0x797/0x1570 [ 142.196298][ C0] lock_acquire.part.0+0xeb/0x330 [ 142.196676][ C0] _raw_spin_lock+0x30/0x40 [ 142.196863][ C0] set_mems_allowed+0x1d/0x210 [ 142.197053][ C0] kernel_init_freeable+0x72/0x310 [ 142.197248][ C0] kernel_init+0x20/0x200 [ 142.197438][ C0] ret_from_fork+0x31/0x70 [ 142.197629][ C0] ret_from_fork_asm+0x1a/0x30 [ 142.197818][ C0] } [ 142.197897][ C0] ... key at: [] __key.387+0x0/0x40 [ 142.198124][ C0] ... acquired at: [ 142.198237][ C0] __lock_acquire+0xaf0/0x1570 [ 142.198389][ C0] lock_acquire.part.0+0xeb/0x330 [ 142.198547][ C0] _raw_spin_lock+0x30/0x40 [ 142.198696][ C0] __get_task_comm+0x27/0x70 [ 142.198849][ C0] ref_tracker_alloc+0x2ee/0x490 [ 142.199011][ C0] netdev_get_by_index+0x5e/0x80 [ 142.199165][ C0] fib6_nh_init+0x3d8/0x15b0 [ 142.199319][ C0] ip6_route_info_create+0xf18/0x17d0 [ 142.199472][ C0] ip6_route_add+0x1c/0x140 [ 142.199631][ C0] addrconf_prefix_route+0x1cc/0x2b0 [ 142.199791][ C0] addrconf_permanent_addr+0x32f/0x670 [ 142.199944][ C0] addrconf_notify+0x749/0xd60 [ 142.200094][ C0] notifier_call_chain+0xcd/0x150 [ 142.200245][ C0] __dev_notify_flags+0xe6/0x250 [ 142.200400][ C0] dev_change_flags+0xec/0x160 [ 142.200555][ C0] do_setlink+0x7d6/0x21e0 [ 142.200709][ C0] __rtnl_newlink+0xaa7/0xd80 [ 142.200862][ C0] rtnl_newlink+0x63/0xa0 [ 142.201015][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 142.201168][ C0] netlink_rcv_skb+0x130/0x360 [ 142.201323][ C0] netlink_unicast+0x449/0x710 [ 142.201473][ C0] netlink_sendmsg+0x723/0xbe0 [ 142.201626][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 142.201780][ C0] ___sys_sendmsg+0xee/0x170 [ 142.201938][ C0] __sys_sendmsg+0xcd/0x170 [ 142.202096][ C0] do_syscall_64+0xc6/0x1e0 [ 142.202258][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 142.202449][ C0] [ 142.202526][ C0] -> (&ndev->lock){++-.}-{2:2} { [ 142.202681][ C0] HARDIRQ-ON-W at: [ 142.202796][ C0] __lock_acquire+0x797/0x1570 [ 142.202990][ C0] lock_acquire.part.0+0xeb/0x330 [ 142.203183][ C0] _raw_write_lock_bh+0x38/0x50 [ 142.203379][ C0] addrconf_permanent_addr+0x6e/0x670 [ 142.203572][ C0] addrconf_notify+0x749/0xd60 [ 142.203764][ C0] notifier_call_chain+0xcd/0x150 [ 142.203956][ C0] __dev_notify_flags+0xe6/0x250 [ 142.204150][ C0] dev_change_flags+0xec/0x160 [ 142.204341][ C0] do_setlink+0x7d6/0x21e0 [ 142.204537][ C0] __rtnl_newlink+0xaa7/0xd80 [ 142.204730][ C0] rtnl_newlink+0x63/0xa0 [ 142.204925][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 142.205112][ C0] netlink_rcv_skb+0x130/0x360 [ 142.205401][ C0] netlink_unicast+0x449/0x710 [ 142.205592][ C0] netlink_sendmsg+0x723/0xbe0 [ 142.205782][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 142.206076][ C0] ___sys_sendmsg+0xee/0x170 [ 142.206268][ C0] __sys_sendmsg+0xcd/0x170 [ 142.206459][ C0] do_syscall_64+0xc6/0x1e0 [ 142.206753][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 142.206982][ C0] HARDIRQ-ON-R at: [ 142.207100][ C0] __lock_acquire+0x797/0x1570 [ 142.207294][ C0] lock_acquire.part.0+0xeb/0x330 [ 142.207584][ C0] _raw_read_lock_bh+0x44/0x80 [ 142.207773][ C0] inet6_fill_ifla6_attrs+0x516/0x740 [ 142.207963][ C0] inet6_fill_link_af+0x5e/0xe0 [ 142.208257][ C0] rtnl_fill_ifinfo+0x1612/0x29e0 [ 142.208448][ C0] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 142.208641][ C0] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 142.208868][ C0] rtmsg_ifinfo+0x5b/0xa0 [ 142.209159][ C0] register_netdevice+0x1177/0x1690 [ 142.209356][ C0] register_netdev+0x20/0x40 [ 142.209547][ C0] sit_init_net+0x250/0x4f0 [ 142.209838][ C0] ops_init+0x9b/0x560 [ 142.209994][ C0] register_pernet_operations+0x2db/0x710 [ 142.210334][ C0] register_pernet_device+0x2a/0x60 [ 142.210625][ C0] sit_init+0x23/0xe0 [ 142.210787][ C0] do_one_initcall+0x8d/0x1e0 [ 142.210978][ C0] do_initcalls+0x1b2/0x3e0 [ 142.211169][ C0] kernel_init_freeable+0x232/0x310 [ 142.211459][ C0] kernel_init+0x20/0x200 [ 142.211650][ C0] ret_from_fork+0x31/0x70 [ 142.211842][ C0] ret_from_fork_asm+0x1a/0x30 [ 142.212143][ C0] IN-SOFTIRQ-W at: [ 142.212258][ C0] __lock_acquire+0x797/0x1570 [ 142.212449][ C0] lock_acquire.part.0+0xeb/0x330 [ 142.212639][ C0] _raw_write_lock+0x30/0x40 [ 142.212830][ C0] addrconf_rs_timer+0xa9/0x730 [ 142.213016][ C0] call_timer_fn+0x13b/0x230 [ 142.213203][ C0] __run_timers+0x545/0x810 [ 142.213392][ C0] run_timer_softirq+0xe8/0x1b0 [ 142.213673][ C0] __do_softirq+0x1f8/0x5df [ 142.213861][ C0] irq_exit_rcu+0x97/0xc0 [ 142.214051][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 142.214369][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 142.214593][ C0] _raw_spin_unlock_irqrestore+0x43/0x70 [ 142.214815][ C0] __create_object+0x5e/0xb0 [ 142.215099][ C0] __kmalloc+0x2ce/0x3c0 [ 142.215289][ C0] p9_fcall_init+0x7d/0x1b0 [ 142.215481][ C0] p9_tag_alloc+0x138/0x700 [ 142.215766][ C0] p9_client_prepare_req+0xe6/0x290 [ 142.215955][ C0] p9_client_rpc+0x18d/0x930 [ 142.216142][ C0] p9_client_readlink+0x71/0x120 [ 142.216330][ C0] v9fs_vfs_get_link_dotl+0x94/0x1b0 [ 142.216615][ C0] pick_link+0xac6/0x1160 [ 142.216803][ C0] step_into+0x84e/0xfa0 [ 142.216990][ C0] link_path_walk.part.0.constprop.0+0x56a/0x9f0 [ 142.217306][ C0] path_lookupat+0x72/0x660 [ 142.217492][ C0] filename_lookup+0x19e/0x420 [ 142.217679][ C0] vfs_statx+0xe8/0x460 [ 142.217962][ C0] vfs_fstatat+0x93/0xc0 [ 142.218148][ C0] __do_sys_newfstatat+0x6b/0xc0 [ 142.218340][ C0] do_syscall_64+0xc6/0x1e0 [ 142.218528][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 142.218846][ C0] INITIAL USE at: [ 142.218958][ C0] __lock_acquire+0x797/0x1570 [ 142.219150][ C0] lock_acquire.part.0+0xeb/0x330 [ 142.219435][ C0] _raw_write_lock_bh+0x38/0x50 [ 142.219622][ C0] addrconf_permanent_addr+0x6e/0x670 [ 142.219813][ C0] addrconf_notify+0x749/0xd60 [ 142.220002][ C0] notifier_call_chain+0xcd/0x150 [ 142.220286][ C0] __dev_notify_flags+0xe6/0x250 [ 142.220473][ C0] dev_change_flags+0xec/0x160 [ 142.220663][ C0] do_setlink+0x7d6/0x21e0 [ 142.220963][ C0] __rtnl_newlink+0xaa7/0xd80 [ 142.221154][ C0] rtnl_newlink+0x63/0xa0 [ 142.221343][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 142.221530][ C0] netlink_rcv_skb+0x130/0x360 [ 142.221717][ C0] netlink_unicast+0x449/0x710 [ 142.221904][ C0] netlink_sendmsg+0x723/0xbe0 [ 142.222092][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 142.222281][ C0] ___sys_sendmsg+0xee/0x170 [ 142.222473][ C0] __sys_sendmsg+0xcd/0x170 [ 142.222660][ C0] do_syscall_64+0xc6/0x1e0 [ 142.222942][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 142.223166][ C0] INITIAL READ USE at: [ 142.223280][ C0] __lock_acquire+0x797/0x1570 [ 142.223470][ C0] lock_acquire.part.0+0xeb/0x330 [ 142.223758][ C0] _raw_read_lock_bh+0x44/0x80 [ 142.223948][ C0] inet6_fill_ifla6_attrs+0x516/0x740 [ 142.224173][ C0] inet6_fill_link_af+0x5e/0xe0 [ 142.224456][ C0] rtnl_fill_ifinfo+0x1612/0x29e0 [ 142.224645][ C0] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 142.224868][ C0] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 142.225191][ C0] rtmsg_ifinfo+0x5b/0xa0 [ 142.225376][ C0] register_netdevice+0x1177/0x1690 [ 142.225601][ C0] register_netdev+0x20/0x40 [ 142.225890][ C0] sit_init_net+0x250/0x4f0 [ 142.226076][ C0] ops_init+0x9b/0x560 [ 142.226264][ C0] register_pernet_operations+0x2db/0x710 [ 142.226489][ C0] register_pernet_device+0x2a/0x60 [ 142.226713][ C0] sit_init+0x23/0xe0 [ 142.226900][ C0] do_one_initcall+0x8d/0x1e0 [ 142.227087][ C0] do_initcalls+0x1b2/0x3e0 [ 142.227275][ C0] kernel_init_freeable+0x232/0x310 [ 142.227499][ C0] kernel_init+0x20/0x200 [ 142.227688][ C0] ret_from_fork+0x31/0x70 [ 142.227982][ C0] ret_from_fork_asm+0x1a/0x30 [ 142.228170][ C0] } [ 142.228246][ C0] ... key at: [] __key.36+0x0/0x40 [ 142.228468][ C0] ... acquired at: [ 142.228579][ C0] mark_lock+0x28d/0x3e0 [ 142.228728][ C0] mark_usage+0xd9/0x2a0 [ 142.228881][ C0] __lock_acquire+0x797/0x1570 [ 142.229036][ C0] lock_acquire.part.0+0xeb/0x330 [ 142.229188][ C0] _raw_write_lock+0x30/0x40 [ 142.229340][ C0] addrconf_rs_timer+0xa9/0x730 [ 142.229489][ C0] call_timer_fn+0x13b/0x230 [ 142.229640][ C0] __run_timers+0x545/0x810 [ 142.229889][ C0] run_timer_softirq+0xe8/0x1b0 [ 142.230039][ C0] __do_softirq+0x1f8/0x5df [ 142.230188][ C0] irq_exit_rcu+0x97/0xc0 [ 142.230341][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 142.230529][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 142.230715][ C0] _raw_spin_unlock_irqrestore+0x43/0x70 [ 142.230900][ C0] __create_object+0x5e/0xb0 [ 142.231050][ C0] __kmalloc+0x2ce/0x3c0 [ 142.231199][ C0] p9_fcall_init+0x7d/0x1b0 [ 142.231349][ C0] p9_tag_alloc+0x138/0x700 [ 142.231498][ C0] p9_client_prepare_req+0xe6/0x290 [ 142.231651][ C0] p9_client_rpc+0x18d/0x930 [ 142.231991][ C0] p9_client_readlink+0x71/0x120 [ 142.232142][ C0] v9fs_vfs_get_link_dotl+0x94/0x1b0 [ 142.232292][ C0] pick_link+0xac6/0x1160 [ 142.232442][ C0] step_into+0x84e/0xfa0 [ 142.232592][ C0] link_path_walk.part.0.constprop.0+0x56a/0x9f0 [ 142.232872][ C0] path_lookupat+0x72/0x660 [ 142.233024][ C0] filename_lookup+0x19e/0x420 [ 142.233179][ C0] vfs_statx+0xe8/0x460 [ 142.233294][ C0] vfs_fstatat+0x93/0xc0 [ 142.233537][ C0] __do_sys_newfstatat+0x6b/0xc0 [ 142.233687][ C0] do_syscall_64+0xc6/0x1e0 [ 142.233840][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 142.234027][ C0] [ 142.234195][ C0] [ 142.234195][ C0] stack backtrace: [ 142.234379][ C0] CPU: 0 PID: 954 Comm: grep Not tainted 6.9.0-rc1-virtme #1 [ 142.234608][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 142.235036][ C0] Call Trace: [ 142.235156][ C0] [ 142.235234][ C0] dump_stack_lvl+0x82/0xd0 [ 142.235392][ C0] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 142.235671][ C0] ? kernel_text_address+0xce/0xe0 [ 142.235827][ C0] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 142.236017][ C0] ? __pfx_usage_skip+0x10/0x10 [ 142.236167][ C0] ? __pfx_usage_match+0x10/0x10 [ 142.236416][ C0] ? arch_stack_walk+0xa2/0xf0 [ 142.236571][ C0] mark_lock_irq+0x4cd/0xa10 [ 142.236722][ C0] ? __pfx_mark_lock_irq+0x10/0x10 [ 142.236872][ C0] ? __pfx_stack_trace_save+0x10/0x10 [ 142.237026][ C0] ? save_trace+0x8f/0x5b0 [ 142.237272][ C0] mark_lock+0x28d/0x3e0 [ 142.237387][ C0] ? __pfx_stack_trace_save+0x10/0x10 [ 142.237539][ C0] mark_usage+0xd9/0x2a0 [ 142.237653][ C0] __lock_acquire+0x797/0x1570 [ 142.237908][ C0] ? __pfx_validate_chain+0x10/0x10 [ 142.238059][ C0] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 142.238208][ C0] lock_acquire.part.0+0xeb/0x330 [ 142.238357][ C0] ? addrconf_rs_timer+0xa9/0x730 [ 142.238506][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 142.238750][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 142.238903][ C0] ? addrconf_rs_timer+0xa9/0x730 [ 142.239071][ C0] ? lock_acquire+0x32/0xc0 [ 142.239220][ C0] ? addrconf_rs_timer+0xa9/0x730 [ 142.239463][ C0] _raw_write_lock+0x30/0x40 [ 142.239612][ C0] ? addrconf_rs_timer+0xa9/0x730 [ 142.239761][ C0] addrconf_rs_timer+0xa9/0x730 [ 142.239911][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 142.240157][ C0] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 142.240309][ C0] ? call_timer_fn+0xe8/0x230 [ 142.240459][ C0] ? lock_acquire+0x32/0xc0 [ 142.240608][ C0] ? call_timer_fn+0xe8/0x230 [ 142.240861][ C0] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 142.241011][ C0] call_timer_fn+0x13b/0x230 [ 142.241160][ C0] ? call_timer_fn+0xe8/0x230 [ 142.241312][ C0] ? call_timer_fn+0xe8/0x230 [ 142.241462][ C0] ? __pfx_call_timer_fn+0x10/0x10 [ 142.241612][ C0] ? mark_lock+0x38/0x3e0 [ 142.241730][ C0] __run_timers+0x545/0x810 [ 142.241880][ C0] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 142.242030][ C0] ? __pfx___run_timers+0x10/0x10 [ 142.242181][ C0] ? do_raw_spin_lock+0x131/0x270 [ 142.242330][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 142.242480][ C0] ? lock_acquire+0x32/0xc0 [ 142.242630][ C0] ? run_timer_softirq+0xe0/0x1b0 [ 142.242883][ C0] run_timer_softirq+0xe8/0x1b0 [ 142.243036][ C0] __do_softirq+0x1f8/0x5df [ 142.243189][ C0] irq_exit_rcu+0x97/0xc0 [ 142.243303][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 142.243452][ C0] [ 142.243530][ C0] [ 142.243606][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 142.243791][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70 [ 142.243984][ 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 69 <74> 0e 5b 5d c3 cc cc cc cc e8 6f 54 b5 fd eb dc 0f 1f 44 00 00 5b [ 142.244618][ C0] RSP: 0018:ffffc9000282f3e0 EFLAGS: 00000286 [ 142.244811][ C0] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff312dc01 [ 142.245134][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff96dd67f1 [ 142.245359][ C0] RBP: ffffffff9814e4c0 R08: 0000000000000001 R09: fffffbfff312e482 [ 142.245586][ C0] R10: ffffffff98972417 R11: ffffc9000282f1d1 R12: ffff888005774000 [ 142.245909][ C0] R13: 0000000000001000 R14: 0000000000000001 R15: 0000000000000282 [ 142.246135][ C0] ? _raw_spin_unlock_irqrestore+0x51/0x70 [ 142.246322][ C0] __create_object+0x5e/0xb0 [ 142.246567][ C0] ? p9_fcall_init+0x7d/0x1b0 [ 142.246716][ C0] __kmalloc+0x2ce/0x3c0 [ 142.246832][ C0] p9_fcall_init+0x7d/0x1b0 [ 142.246986][ C0] p9_tag_alloc+0x138/0x700 [ 142.247233][ C0] ? __pfx_p9_tag_alloc+0x10/0x10 [ 142.247383][ C0] ? mark_lock+0x38/0x3e0 [ 142.247499][ C0] p9_client_prepare_req+0xe6/0x290 [ 142.247650][ C0] ? __pfx_p9_client_prepare_req+0x10/0x10 [ 142.247838][ C0] ? find_held_lock+0x2c/0x110 [ 142.248082][ C0] p9_client_rpc+0x18d/0x930 [ 142.248231][ C0] ? do_raw_spin_lock+0x131/0x270 [ 142.248391][ C0] ? __pfx_p9_client_rpc+0x10/0x10 [ 142.248541][ C0] ? v9fs_fid_find+0x1af/0x290 [ 142.248789][ C0] ? do_raw_spin_unlock+0x58/0x220 [ 142.248940][ C0] ? _raw_spin_unlock+0x23/0x40 [ 142.249102][ C0] ? __pfx_v9fs_fid_find+0x10/0x10 [ 142.249254][ C0] ? find_held_lock+0x2c/0x110 [ 142.249499][ C0] p9_client_readlink+0x71/0x120 [ 142.249651][ C0] v9fs_vfs_get_link_dotl+0x94/0x1b0 [ 142.249803][ C0] ? __pfx_v9fs_vfs_get_link_dotl+0x10/0x10 [ 142.249989][ C0] ? try_to_unlazy+0x1e1/0x560 [ 142.250234][ C0] pick_link+0xac6/0x1160 [ 142.250348][ C0] ? __pfx___lock_release+0x10/0x10 [ 142.250501][ C0] ? __pfx_v9fs_vfs_get_link_dotl+0x10/0x10 [ 142.250686][ C0] step_into+0x84e/0xfa0 [ 142.250807][ C0] ? read_word_at_a_time+0xe/0x20 [ 142.251051][ C0] ? __d_lookup_rcu+0x20d/0x3f0 [ 142.251201][ C0] ? __pfx_step_into+0x10/0x10 [ 142.251354][ C0] link_path_walk.part.0.constprop.0+0x56a/0x9f0 [ 142.251543][ C0] ? __pfx_link_path_walk.part.0.constprop.0+0x10/0x10 [ 142.251820][ C0] ? validate_chain+0x130/0x9b0 [ 142.251968][ C0] ? hlock_class+0x4e/0x130 [ 142.252117][ C0] path_lookupat+0x72/0x660 [ 142.252267][ C0] filename_lookup+0x19e/0x420 [ 142.252510][ C0] ? __pfx_filename_lookup+0x10/0x10 [ 142.252665][ C0] ? find_held_lock+0x2c/0x110 [ 142.252815][ C0] ? __lock_release+0x103/0x460 [ 142.252964][ C0] ? __might_fault+0x11b/0x170 [ 142.253209][ C0] ? __pfx___lock_release+0x10/0x10 [ 142.253359][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 142.253509][ C0] vfs_statx+0xe8/0x460 [ 142.253623][ C0] ? __pfx_vfs_statx+0x10/0x10 [ 142.253877][ C0] ? getname_flags+0xbd/0x3d0 [ 142.254026][ C0] vfs_fstatat+0x93/0xc0 [ 142.254141][ C0] __do_sys_newfstatat+0x6b/0xc0 [ 142.254289][ C0] ? __pfx___do_sys_newfstatat+0x10/0x10 [ 142.254440][ C0] ? __x64_sys_openat+0x123/0x1e0 [ 142.254589][ C0] ? __pfx___x64_sys_openat+0x10/0x10 [ 142.254738][ C0] ? __pfx_do_faccessat+0x10/0x10 [ 142.254890][ C0] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 142.255075][ C0] do_syscall_64+0xc6/0x1e0 [ 142.255318][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 142.255505][ C0] RIP: 0033:0x7f480a57deae [ 142.255658][ 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 [ 142.256283][ C0] RSP: 002b:00007ffcfd2d5618 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 [ 142.256508][ C0] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 00007f480a57deae [ 142.256827][ C0] RDX: 00007ffcfd2d56f0 RSI: 00007ffcfd2d5620 RDI: 00000000ffffff9c [ 142.257051][ C0] RBP: 00007ffcfd2d57b0 R08: 00000000ffffffff R09: 00007ffcfd2d5620 [ 142.257272][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcfd2d5627 [ 142.257588][ C0] R13: 00007ffcfd2d5620 R14: 00007f480a58d220 R15: 00007f480a54f000 [ 142.257814][ C0]