[ 31.520392][ C2] [ 31.520500][ C2] ======================================================== [ 31.520741][ C2] WARNING: possible irq lock inversion dependency detected [ 31.520977][ C2] 6.9.0-rc1-virtme #1 Not tainted [ 31.521136][ C2] -------------------------------------------------------- [ 31.521372][ C2] ip/340 just changed the state of lock: [ 31.521530][ C2] ffff8880055a3d80 (&ndev->lock){++-.}-{2:2}, at: addrconf_rs_timer+0xa9/0x730 [ 31.521819][ C2] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 31.522055][ C2] (&p->alloc_lock){+.+.}-{2:2} [ 31.522059][ C2] [ 31.522059][ C2] [ 31.522059][ C2] and interrupts could create inverse lock ordering between them. [ 31.522059][ C2] [ 31.522651][ C2] [ 31.522651][ C2] other info that might help us debug this: [ 31.522882][ C2] Possible interrupt unsafe locking scenario: [ 31.522882][ C2] [ 31.523118][ C2] CPU0 CPU1 [ 31.523276][ C2] ---- ---- [ 31.523442][ C2] lock(&p->alloc_lock); [ 31.523563][ C2] local_irq_disable(); [ 31.523774][ C2] lock(&ndev->lock); [ 31.523971][ C2] lock(&p->alloc_lock); [ 31.524167][ C2] [ 31.524285][ C2] lock(&ndev->lock); [ 31.524408][ C2] [ 31.524408][ C2] *** DEADLOCK *** [ 31.524408][ C2] [ 31.524639][ C2] 1 lock held by ip/340: [ 31.524760][ C2] #0: ffffc90000230b68 ((&ndev->rs_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 31.525057][ C2] [ 31.525057][ C2] the shortest dependencies between 2nd lock and 1st lock: [ 31.525332][ C2] -> (&p->alloc_lock){+.+.}-{2:2} { [ 31.525496][ C2] HARDIRQ-ON-W at: [ 31.525620][ C2] __lock_acquire+0x797/0x1570 [ 31.525825][ C2] lock_acquire.part.0+0xeb/0x330 [ 31.526030][ C2] _raw_spin_lock+0x30/0x40 [ 31.526232][ C2] set_mems_allowed+0x1d/0x210 [ 31.526434][ C2] kernel_init_freeable+0x72/0x310 [ 31.526635][ C2] kernel_init+0x20/0x200 [ 31.526836][ C2] ret_from_fork+0x31/0x70 [ 31.527040][ C2] ret_from_fork_asm+0x1a/0x30 [ 31.527243][ C2] SOFTIRQ-ON-W at: [ 31.527364][ C2] __lock_acquire+0x797/0x1570 [ 31.527565][ C2] lock_acquire.part.0+0xeb/0x330 [ 31.527767][ C2] _raw_spin_lock+0x30/0x40 [ 31.527968][ C2] set_mems_allowed+0x1d/0x210 [ 31.528168][ C2] kernel_init_freeable+0x72/0x310 [ 31.528368][ C2] kernel_init+0x20/0x200 [ 31.528572][ C2] ret_from_fork+0x31/0x70 [ 31.528773][ C2] ret_from_fork_asm+0x1a/0x30 [ 31.528973][ C2] INITIAL USE at: [ 31.529094][ C2] __lock_acquire+0x797/0x1570 [ 31.529295][ C2] lock_acquire.part.0+0xeb/0x330 [ 31.529496][ C2] _raw_spin_lock+0x30/0x40 [ 31.529697][ C2] set_mems_allowed+0x1d/0x210 [ 31.529898][ C2] kernel_init_freeable+0x72/0x310 [ 31.530108][ C2] kernel_init+0x20/0x200 [ 31.530309][ C2] ret_from_fork+0x31/0x70 [ 31.530511][ C2] ret_from_fork_asm+0x1a/0x30 [ 31.530711][ C2] } [ 31.530793][ C2] ... key at: [] __key.388+0x0/0x40 [ 31.531035][ C2] ... acquired at: [ 31.531154][ C2] __lock_acquire+0xaf0/0x1570 [ 31.531429][ C2] lock_acquire.part.0+0xeb/0x330 [ 31.531590][ C2] _raw_spin_lock+0x30/0x40 [ 31.531751][ C2] __get_task_comm+0x27/0x70 [ 31.531916][ C2] ref_tracker_alloc+0x2ee/0x490 [ 31.532078][ C2] netdev_get_by_index+0x5e/0x80 [ 31.532238][ C2] fib6_nh_init+0x3d8/0x1580 [ 31.532402][ C2] ip6_route_info_create+0xf18/0x17d0 [ 31.532570][ C2] ip6_route_add+0x1c/0x140 [ 31.532730][ C2] addrconf_prefix_route+0x2a6/0x430 [ 31.532893][ C2] addrconf_permanent_addr+0x32f/0x670 [ 31.533054][ C2] addrconf_notify+0x749/0xd60 [ 31.533213][ C2] notifier_call_chain+0xcd/0x150 [ 31.533375][ C2] __dev_notify_flags+0xe6/0x250 [ 31.533643][ C2] dev_change_flags+0xec/0x160 [ 31.533801][ C2] do_setlink+0x7d6/0x21e0 [ 31.533960][ C2] __rtnl_newlink+0xaa7/0xd80 [ 31.534119][ C2] rtnl_newlink+0x63/0xa0 [ 31.534278][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 31.534437][ C2] netlink_rcv_skb+0x130/0x360 [ 31.534605][ C2] netlink_unicast+0x449/0x710 [ 31.534764][ C2] netlink_sendmsg+0x723/0xbe0 [ 31.535029][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 31.535191][ C2] ___sys_sendmsg+0xee/0x170 [ 31.535354][ C2] __sys_sendmsg+0xcd/0x170 [ 31.535521][ C2] do_syscall_64+0xc6/0x1e0 [ 31.535681][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 31.535880][ C2] [ 31.535961][ C2] -> (&ndev->lock){++-.}-{2:2} { [ 31.536125][ C2] HARDIRQ-ON-W at: [ 31.536246][ C2] __lock_acquire+0x797/0x1570 [ 31.536555][ C2] lock_acquire.part.0+0xeb/0x330 [ 31.536757][ C2] _raw_write_lock_bh+0x38/0x50 [ 31.536957][ C2] addrconf_permanent_addr+0x6e/0x670 [ 31.537157][ C2] addrconf_notify+0x749/0xd60 [ 31.537356][ C2] notifier_call_chain+0xcd/0x150 [ 31.537554][ C2] __dev_notify_flags+0xe6/0x250 [ 31.537754][ C2] dev_change_flags+0xec/0x160 [ 31.538061][ C2] do_setlink+0x7d6/0x21e0 [ 31.538258][ C2] __rtnl_newlink+0xaa7/0xd80 [ 31.538458][ C2] rtnl_newlink+0x63/0xa0 [ 31.538656][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 31.538856][ C2] netlink_rcv_skb+0x130/0x360 [ 31.539056][ C2] netlink_unicast+0x449/0x710 [ 31.539255][ C2] netlink_sendmsg+0x723/0xbe0 [ 31.539573][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 31.539772][ C2] ___sys_sendmsg+0xee/0x170 [ 31.539978][ C2] __sys_sendmsg+0xcd/0x170 [ 31.540185][ C2] do_syscall_64+0xc6/0x1e0 [ 31.540385][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 31.540622][ C2] HARDIRQ-ON-R at: [ 31.540743][ C2] __lock_acquire+0x797/0x1570 [ 31.540945][ C2] lock_acquire.part.0+0xeb/0x330 [ 31.541146][ C2] _raw_read_lock_bh+0x44/0x80 [ 31.541346][ C2] inet6_fill_ifla6_attrs+0x516/0x740 [ 31.541654][ C2] inet6_fill_link_af+0x5e/0xe0 [ 31.541853][ C2] rtnl_fill_ifinfo+0x1615/0x2a90 [ 31.542052][ C2] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 31.542255][ C2] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 31.542502][ C2] rtmsg_ifinfo+0x5b/0xa0 [ 31.542701][ C2] register_netdevice+0x1177/0x1690 [ 31.542901][ C2] register_netdev+0x20/0x40 [ 31.543211][ C2] vti6_init_net+0x25d/0x380 [ 31.543420][ C2] ops_init+0x9b/0x560 [ 31.543584][ C2] register_pernet_operations+0x2db/0x710 [ 31.543824][ C2] register_pernet_device+0x2a/0x60 [ 31.544024][ C2] vti6_tunnel_init+0x18/0x110 [ 31.544225][ C2] do_one_initcall+0x8d/0x1e0 [ 31.544532][ C2] do_initcalls+0x1b2/0x3e0 [ 31.544732][ C2] kernel_init_freeable+0x232/0x310 [ 31.544934][ C2] kernel_init+0x20/0x200 [ 31.545133][ C2] ret_from_fork+0x31/0x70 [ 31.545333][ C2] ret_from_fork_asm+0x1a/0x30 [ 31.545532][ C2] IN-SOFTIRQ-W at: [ 31.545651][ C2] __lock_acquire+0x797/0x1570 [ 31.545854][ C2] lock_acquire.part.0+0xeb/0x330 [ 31.546159][ C2] _raw_write_lock+0x30/0x40 [ 31.546360][ C2] addrconf_rs_timer+0xa9/0x730 [ 31.546558][ C2] call_timer_fn+0x13b/0x230 [ 31.546758][ C2] __run_timers+0x545/0x810 [ 31.546957][ C2] timer_expire_remote+0x9b/0xe0 [ 31.547164][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 31.547476][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 31.547677][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 31.547875][ C2] __do_softirq+0x1f8/0x5df [ 31.548074][ C2] irq_exit_rcu+0x97/0xc0 [ 31.548273][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 31.548521][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 31.548760][ C2] kasan_report+0xd1/0xf0 [ 31.549069][ C2] memchr_inv+0x1f4/0x260 [ 31.549268][ C2] check_bytes_and_report+0x5d/0x150 [ 31.549470][ C2] check_object+0x1bd/0x370 [ 31.549669][ C2] alloc_debug_processing+0xa5/0x1b0 [ 31.549870][ C2] ___slab_alloc+0x92e/0x10a0 [ 31.550074][ C2] __kmalloc+0x34c/0x3c0 [ 31.550276][ C2] p9_fcall_init+0x7d/0x1b0 [ 31.550588][ C2] p9_tag_alloc+0x138/0x700 [ 31.550788][ C2] p9_client_prepare_req+0xe6/0x290 [ 31.550986][ C2] p9_client_rpc+0x18d/0x930 [ 31.551185][ C2] p9_client_readlink+0x71/0x120 [ 31.551390][ C2] v9fs_vfs_get_link_dotl+0x94/0x1b0 [ 31.551590][ C2] ovl_get_link+0x62/0x90 [ 31.551793][ C2] pick_link+0x8b4/0x1160 [ 31.551993][ C2] step_into+0x84e/0xfa0 [ 31.552194][ C2] open_last_lookups+0x48c/0xcd0 [ 31.552394][ C2] path_openat+0x16f/0x440 [ 31.552720][ C2] do_filp_open+0x1b3/0x3e0 [ 31.552919][ C2] do_sys_openat2+0x122/0x160 [ 31.553118][ C2] __x64_sys_openat+0x123/0x1e0 [ 31.553319][ C2] do_syscall_64+0xc6/0x1e0 [ 31.553517][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 31.553757][ C2] INITIAL USE at: [ 31.553883][ C2] __lock_acquire+0x797/0x1570 [ 31.554083][ C2] lock_acquire.part.0+0xeb/0x330 [ 31.554282][ C2] _raw_write_lock_bh+0x38/0x50 [ 31.554483][ C2] addrconf_permanent_addr+0x6e/0x670 [ 31.554791][ C2] addrconf_notify+0x749/0xd60 [ 31.554993][ C2] notifier_call_chain+0xcd/0x150 [ 31.555190][ C2] __dev_notify_flags+0xe6/0x250 [ 31.555390][ C2] dev_change_flags+0xec/0x160 [ 31.555587][ C2] do_setlink+0x7d6/0x21e0 [ 31.555783][ C2] __rtnl_newlink+0xaa7/0xd80 [ 31.555985][ C2] rtnl_newlink+0x63/0xa0 [ 31.556291][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 31.556488][ C2] netlink_rcv_skb+0x130/0x360 [ 31.556686][ C2] netlink_unicast+0x449/0x710 [ 31.556885][ C2] netlink_sendmsg+0x723/0xbe0 [ 31.557085][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 31.557285][ C2] ___sys_sendmsg+0xee/0x170 [ 31.557484][ C2] __sys_sendmsg+0xcd/0x170 [ 31.557790][ C2] do_syscall_64+0xc6/0x1e0 [ 31.557986][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 31.558224][ C2] INITIAL READ USE at: [ 31.558343][ C2] __lock_acquire+0x797/0x1570 [ 31.558541][ C2] lock_acquire.part.0+0xeb/0x330 [ 31.558741][ C2] _raw_read_lock_bh+0x44/0x80 [ 31.558939][ C2] inet6_fill_ifla6_attrs+0x516/0x740 [ 31.559284][ C2] inet6_fill_link_af+0x5e/0xe0 [ 31.559481][ C2] rtnl_fill_ifinfo+0x1615/0x2a90 [ 31.559678][ C2] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 31.559916][ C2] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 31.560165][ C2] rtmsg_ifinfo+0x5b/0xa0 [ 31.560366][ C2] register_netdevice+0x1177/0x1690 [ 31.560708][ C2] register_netdev+0x20/0x40 [ 31.560906][ C2] vti6_init_net+0x25d/0x380 [ 31.561104][ C2] ops_init+0x9b/0x560 [ 31.561301][ C2] register_pernet_operations+0x2db/0x710 [ 31.561543][ C2] register_pernet_device+0x2a/0x60 [ 31.561779][ C2] vti6_tunnel_init+0x18/0x110 [ 31.562086][ C2] do_one_initcall+0x8d/0x1e0 [ 31.562285][ C2] do_initcalls+0x1b2/0x3e0 [ 31.562485][ C2] kernel_init_freeable+0x232/0x310 [ 31.562729][ C2] kernel_init+0x20/0x200 [ 31.562927][ C2] ret_from_fork+0x31/0x70 [ 31.563126][ C2] ret_from_fork_asm+0x1a/0x30 [ 31.563324][ C2] } [ 31.563512][ C2] ... key at: [] __key.37+0x0/0x40 [ 31.563751][ C2] ... acquired at: [ 31.563869][ C2] mark_lock+0x28d/0x3e0 [ 31.564027][ C2] mark_usage+0xd9/0x2a0 [ 31.564189][ C2] __lock_acquire+0x797/0x1570 [ 31.564348][ C2] lock_acquire.part.0+0xeb/0x330 [ 31.564507][ C2] _raw_write_lock+0x30/0x40 [ 31.564666][ C2] addrconf_rs_timer+0xa9/0x730 [ 31.564824][ C2] call_timer_fn+0x13b/0x230 [ 31.565085][ C2] __run_timers+0x545/0x810 [ 31.565243][ C2] timer_expire_remote+0x9b/0xe0 [ 31.565401][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 31.565561][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 31.565722][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 31.565879][ C2] __do_softirq+0x1f8/0x5df [ 31.566037][ C2] irq_exit_rcu+0x97/0xc0 [ 31.566195][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 31.566503][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 31.566699][ C2] kasan_report+0xd1/0xf0 [ 31.566857][ C2] memchr_inv+0x1f4/0x260 [ 31.567018][ C2] check_bytes_and_report+0x5d/0x150 [ 31.567177][ C2] check_object+0x1bd/0x370 [ 31.567335][ C2] alloc_debug_processing+0xa5/0x1b0 [ 31.567492][ C2] ___slab_alloc+0x92e/0x10a0 [ 31.567650][ C2] __kmalloc+0x34c/0x3c0 [ 31.567811][ C2] p9_fcall_init+0x7d/0x1b0 [ 31.567969][ C2] p9_tag_alloc+0x138/0x700 [ 31.568129][ C2] p9_client_prepare_req+0xe6/0x290 [ 31.568289][ C2] p9_client_rpc+0x18d/0x930 [ 31.568551][ C2] p9_client_readlink+0x71/0x120 [ 31.568710][ C2] v9fs_vfs_get_link_dotl+0x94/0x1b0 [ 31.568871][ C2] ovl_get_link+0x62/0x90 [ 31.569028][ C2] pick_link+0x8b4/0x1160 [ 31.569187][ C2] step_into+0x84e/0xfa0 [ 31.569345][ C2] open_last_lookups+0x48c/0xcd0 [ 31.569503][ C2] path_openat+0x16f/0x440 [ 31.569661][ C2] do_filp_open+0x1b3/0x3e0 [ 31.569824][ C2] do_sys_openat2+0x122/0x160 [ 31.570094][ C2] __x64_sys_openat+0x123/0x1e0 [ 31.570253][ C2] do_syscall_64+0xc6/0x1e0 [ 31.570411][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 31.570608][ C2] [ 31.570687][ C2] [ 31.570687][ C2] stack backtrace: [ 31.570881][ C2] CPU: 2 PID: 340 Comm: ip Not tainted 6.9.0-rc1-virtme #1 [ 31.571121][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 31.571584][ C2] Call Trace: [ 31.571711][ C2] [ 31.571794][ C2] dump_stack_lvl+0x82/0xd0 [ 31.571957][ C2] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 31.572157][ C2] ? kernel_text_address+0xce/0xe0 [ 31.572324][ C2] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 31.572522][ C2] ? __pfx_usage_skip+0x10/0x10 [ 31.572683][ C2] ? __pfx_usage_match+0x10/0x10 [ 31.572944][ C2] ? arch_stack_walk+0xa2/0xf0 [ 31.573105][ C2] mark_lock_irq+0x4cd/0xa10 [ 31.573267][ C2] ? __pfx_mark_lock_irq+0x10/0x10 [ 31.573426][ C2] ? __pfx_stack_trace_save+0x10/0x10 [ 31.573587][ C2] ? save_trace+0x8f/0x5b0 [ 31.573746][ C2] mark_lock+0x28d/0x3e0 [ 31.573866][ C2] ? __pfx_stack_trace_save+0x10/0x10 [ 31.574027][ C2] mark_usage+0xd9/0x2a0 [ 31.574150][ C2] __lock_acquire+0x797/0x1570 [ 31.574419][ C2] ? __pfx_validate_chain+0x10/0x10 [ 31.574579][ C2] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 31.574737][ C2] lock_acquire.part.0+0xeb/0x330 [ 31.574895][ C2] ? addrconf_rs_timer+0xa9/0x730 [ 31.575053][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 31.575212][ C2] ? trace_lock_acquire+0x135/0x1c0 [ 31.575375][ C2] ? addrconf_rs_timer+0xa9/0x730 [ 31.575533][ C2] ? lock_acquire+0x32/0xc0 [ 31.575691][ C2] ? addrconf_rs_timer+0xa9/0x730 [ 31.575850][ C2] _raw_write_lock+0x30/0x40 [ 31.576009][ C2] ? addrconf_rs_timer+0xa9/0x730 [ 31.576169][ C2] addrconf_rs_timer+0xa9/0x730 [ 31.576329][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 31.576594][ C2] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 31.576753][ C2] ? call_timer_fn+0xe8/0x230 [ 31.576914][ C2] ? lock_acquire+0x32/0xc0 [ 31.577072][ C2] ? call_timer_fn+0xe8/0x230 [ 31.577231][ C2] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 31.577391][ C2] call_timer_fn+0x13b/0x230 [ 31.577548][ C2] ? call_timer_fn+0xe8/0x230 [ 31.577706][ C2] ? call_timer_fn+0xe8/0x230 [ 31.577872][ C2] ? __pfx_call_timer_fn+0x10/0x10 [ 31.578138][ C2] ? mark_lock+0x38/0x3e0 [ 31.578263][ C2] __run_timers+0x545/0x810 [ 31.578422][ C2] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 31.578584][ C2] ? __pfx___run_timers+0x10/0x10 [ 31.578742][ C2] ? __lock_release+0x103/0x460 [ 31.578901][ C2] ? do_raw_spin_lock+0x131/0x270 [ 31.579059][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 31.579216][ C2] ? lock_acquire+0x32/0xc0 [ 31.579479][ C2] ? timer_expire_remote+0x93/0xe0 [ 31.579641][ C2] timer_expire_remote+0x9b/0xe0 [ 31.579802][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 31.579961][ C2] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10 [ 31.580168][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 31.580327][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 31.580485][ C2] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 31.580647][ C2] __do_softirq+0x1f8/0x5df [ 31.580808][ C2] irq_exit_rcu+0x97/0xc0 [ 31.581035][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 31.581194][ C2] [ 31.581276][ C2] [ 31.581356][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 31.581553][ C2] RIP: 0010:kasan_report+0xd1/0xf0 [ 31.581719][ C2] 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 [ 31.582281][ C2] RSP: 0018:ffffc900010bf258 EFLAGS: 00000282 [ 31.582594][ C2] RAX: 00000000ffffffff RBX: ffff888008dd82c8 RCX: ffffffffab457784 [ 31.582838][ C2] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888008dd82c8 [ 31.583075][ C2] RBP: 0000000000001000 R08: ffff888008dd8000 R09: 00000000000000bb [ 31.583312][ C2] R10: ffff888008ddd054 R11: ffff88803ffdb700 R12: 0000000000000000 [ 31.583551][ C2] R13: 00000000000000bb R14: dffffc0000000000 R15: ffff888005af8040 [ 31.583792][ C2] ? memchr_inv+0x1f4/0x260 [ 31.583954][ C2] ? __alloc_pages+0x1f5/0x370 [ 31.584114][ C2] memchr_inv+0x1f4/0x260 [ 31.584234][ C2] check_bytes_and_report+0x5d/0x150 [ 31.584394][ C2] check_object+0x1bd/0x370 [ 31.584658][ C2] alloc_debug_processing+0xa5/0x1b0 [ 31.584820][ C2] ___slab_alloc+0x92e/0x10a0 [ 31.584980][ C2] ? fs_reclaim_acquire+0xb3/0x170 [ 31.585138][ C2] ? p9_fcall_init+0x7d/0x1b0 [ 31.585298][ C2] ? p9_fcall_init+0x7d/0x1b0 [ 31.585456][ C2] ? __kmalloc+0x34c/0x3c0 [ 31.585614][ C2] __kmalloc+0x34c/0x3c0 [ 31.585735][ C2] p9_fcall_init+0x7d/0x1b0 [ 31.585895][ C2] p9_tag_alloc+0x138/0x700 [ 31.586158][ C2] ? __pfx_p9_tag_alloc+0x10/0x10 [ 31.586318][ C2] ? mark_lock+0x38/0x3e0 [ 31.586440][ C2] p9_client_prepare_req+0xe6/0x290 [ 31.586599][ C2] ? __pfx_p9_client_prepare_req+0x10/0x10 [ 31.586798][ C2] ? find_held_lock+0x2c/0x110 [ 31.586957][ C2] p9_client_rpc+0x18d/0x930 [ 31.587121][ C2] ? do_raw_spin_lock+0x131/0x270 [ 31.587279][ C2] ? __pfx_p9_client_rpc+0x10/0x10 [ 31.587547][ C2] ? v9fs_fid_find+0x1af/0x290 [ 31.587705][ C2] ? do_raw_spin_unlock+0x58/0x220 [ 31.587865][ C2] ? _raw_spin_unlock+0x23/0x40 [ 31.588025][ C2] ? __pfx_v9fs_fid_find+0x10/0x10 [ 31.588186][ C2] ? find_held_lock+0x2c/0x110 [ 31.588346][ C2] p9_client_readlink+0x71/0x120 [ 31.588505][ C2] v9fs_vfs_get_link_dotl+0x94/0x1b0 [ 31.588665][ C2] ? __pfx_v9fs_vfs_get_link_dotl+0x10/0x10 [ 31.588968][ C2] ovl_get_link+0x62/0x90 [ 31.589089][ C2] pick_link+0x8b4/0x1160 [ 31.589214][ C2] ? __lock_release+0x103/0x460 [ 31.589372][ C2] ? __d_lookup+0x1db/0x390 [ 31.589532][ C2] step_into+0x84e/0xfa0 [ 31.589757][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 31.589916][ C2] ? __pfx_step_into+0x10/0x10 [ 31.590082][ C2] ? __d_lookup+0x1e0/0x390 [ 31.590242][ C2] open_last_lookups+0x48c/0xcd0 [ 31.590404][ C2] path_openat+0x16f/0x440 [ 31.590570][ C2] ? __pfx_path_openat+0x10/0x10 [ 31.590731][ C2] ? __lock_acquire+0xaf0/0x1570 [ 31.590891][ C2] do_filp_open+0x1b3/0x3e0 [ 31.591049][ C2] ? __pfx_do_filp_open+0x10/0x10 [ 31.591312][ C2] ? find_held_lock+0x2c/0x110 [ 31.591474][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 31.591632][ C2] ? alloc_fd+0x1f5/0x650 [ 31.591753][ C2] ? _raw_spin_unlock+0x23/0x40 [ 31.591910][ C2] ? alloc_fd+0x1f5/0x650 [ 31.592031][ C2] do_sys_openat2+0x122/0x160 [ 31.592192][ C2] ? __pfx_do_sys_openat2+0x10/0x10 [ 31.592351][ C2] ? __pfx___debug_check_no_obj_freed+0x10/0x10 [ 31.592551][ C2] ? __virt_addr_valid+0x227/0x420 [ 31.592815][ C2] __x64_sys_openat+0x123/0x1e0 [ 31.592973][ C2] ? __pfx___x64_sys_openat+0x10/0x10 [ 31.593133][ C2] do_syscall_64+0xc6/0x1e0 [ 31.593290][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 31.593489][ C2] RIP: 0033:0x7faa0c3820e8 [ 31.593653][ 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 [ 31.594316][ C2] RSP: 002b:00007ffe37bffd18 EFLAGS: 00000287 ORIG_RAX: 0000000000000101 [ 31.594554][ C2] RAX: ffffffffffffffda RBX: 00007ffe37bfff9f RCX: 00007faa0c3820e8 [ 31.594795][ C2] RDX: 0000000000080000 RSI: 00007ffe37bffd90 RDI: 00000000ffffff9c [ 31.595028][ C2] RBP: 00007ffe37bffd80 R08: 0000000000080000 R09: 00007ffe37bffd90 [ 31.595262][ C2] R10: 0000000000000000 R11: 0000000000000287 R12: 00007ffe37bffd97 [ 31.595603][ C2] R13: 00007ffe37bfffb0 R14: 00007ffe37bffd90 R15: 00007faa0c353000 [ 31.595843][ C2]