[ 26.294729][ T260] ip (260) used greatest stack depth: 23520 bytes left [ 33.576387][ C1] [ 33.576504][ C1] ======================================================== [ 33.576763][ C1] WARNING: possible irq lock inversion dependency detected [ 33.577012][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 33.577181][ C1] -------------------------------------------------------- [ 33.577443][ C1] ip/318 just changed the state of lock: [ 33.577616][ C1] ffff8880066ebd80 (&ndev->lock){++-.}-{2:2}, at: addrconf_rs_timer+0xa9/0x730 [ 33.577928][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 33.578180][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 33.578184][ C1] [ 33.578184][ C1] [ 33.578184][ C1] and interrupts could create inverse lock ordering between them. [ 33.578184][ C1] [ 33.578807][ C1] [ 33.578807][ C1] other info that might help us debug this: [ 33.579056][ C1] Possible interrupt unsafe locking scenario: [ 33.579056][ C1] [ 33.579309][ C1] CPU0 CPU1 [ 33.579476][ C1] ---- ---- [ 33.579646][ C1] lock(&p->alloc_lock); [ 33.579775][ C1] local_irq_disable(); [ 33.579993][ C1] lock(&ndev->lock); [ 33.580208][ C1] lock(&p->alloc_lock); [ 33.580429][ C1] [ 33.580558][ C1] lock(&ndev->lock); [ 33.580687][ C1] [ 33.580687][ C1] *** DEADLOCK *** [ 33.580687][ C1] [ 33.580938][ C1] 3 locks held by ip/318: [ 33.581067][ C1] #0: ffff888006b6c5b0 (&ovl_i_mutex_dir_key[depth]){++++}-{3:3}, at: open_last_lookups+0xa6c/0xcd0 [ 33.581423][ C1] #1: ffff88800746a3a0 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: lookup_one_unlocked+0xdc/0x110 [ 33.581767][ C1] #2: ffffc900001d8d68 ((&ndev->rs_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 33.582072][ C1] [ 33.582072][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 33.582367][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 33.582544][ C1] HARDIRQ-ON-W at: [ 33.582676][ C1] __lock_acquire+0x797/0x1570 [ 33.582894][ C1] lock_acquire.part.0+0xeb/0x330 [ 33.583107][ C1] _raw_spin_lock+0x30/0x40 [ 33.583324][ C1] set_mems_allowed+0x1d/0x210 [ 33.583541][ C1] kernel_init_freeable+0x72/0x310 [ 33.583758][ C1] kernel_init+0x20/0x200 [ 33.583973][ C1] ret_from_fork+0x31/0x70 [ 33.584188][ C1] ret_from_fork_asm+0x1a/0x30 [ 33.584402][ C1] SOFTIRQ-ON-W at: [ 33.584530][ C1] __lock_acquire+0x797/0x1570 [ 33.584743][ C1] lock_acquire.part.0+0xeb/0x330 [ 33.584960][ C1] _raw_spin_lock+0x30/0x40 [ 33.585172][ C1] set_mems_allowed+0x1d/0x210 [ 33.585385][ C1] kernel_init_freeable+0x72/0x310 [ 33.585598][ C1] kernel_init+0x20/0x200 [ 33.585813][ C1] ret_from_fork+0x31/0x70 [ 33.586031][ C1] ret_from_fork_asm+0x1a/0x30 [ 33.586243][ C1] INITIAL USE at: [ 33.586374][ C1] __lock_acquire+0x797/0x1570 [ 33.586589][ C1] lock_acquire.part.0+0xeb/0x330 [ 33.586804][ C1] _raw_spin_lock+0x30/0x40 [ 33.587018][ C1] set_mems_allowed+0x1d/0x210 [ 33.587233][ C1] kernel_init_freeable+0x72/0x310 [ 33.587444][ C1] kernel_init+0x20/0x200 [ 33.587658][ C1] ret_from_fork+0x31/0x70 [ 33.587872][ C1] ret_from_fork_asm+0x1a/0x30 [ 33.588083][ C1] } [ 33.588169][ C1] ... key at: [] __key.387+0x0/0x40 [ 33.588427][ C1] ... acquired at: [ 33.588556][ C1] __lock_acquire+0xaf0/0x1570 [ 33.588728][ C1] lock_acquire.part.0+0xeb/0x330 [ 33.588903][ C1] _raw_spin_lock+0x30/0x40 [ 33.589074][ C1] __get_task_comm+0x27/0x70 [ 33.589248][ C1] ref_tracker_alloc+0x2ee/0x490 [ 33.589422][ C1] netdev_get_by_index+0x5e/0x80 [ 33.589594][ C1] fib6_nh_init+0x3d8/0x15b0 [ 33.589768][ C1] ip6_route_info_create+0xf18/0x17d0 [ 33.589940][ C1] ip6_route_add+0x1c/0x140 [ 33.590112][ C1] addrconf_prefix_route+0x1cc/0x2b0 [ 33.590285][ C1] addrconf_permanent_addr+0x32f/0x670 [ 33.590457][ C1] addrconf_notify+0x749/0xd60 [ 33.590628][ C1] notifier_call_chain+0xcd/0x150 [ 33.590802][ C1] __dev_notify_flags+0xe6/0x250 [ 33.590971][ C1] dev_change_flags+0xec/0x160 [ 33.591142][ C1] do_setlink+0x7d6/0x21e0 [ 33.591317][ C1] __rtnl_newlink+0xaa7/0xd80 [ 33.591489][ C1] rtnl_newlink+0x63/0xa0 [ 33.591662][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 33.591833][ C1] netlink_rcv_skb+0x130/0x360 [ 33.592005][ C1] netlink_unicast+0x449/0x710 [ 33.592175][ C1] netlink_sendmsg+0x723/0xbe0 [ 33.592453][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 33.592627][ C1] ___sys_sendmsg+0xee/0x170 [ 33.592797][ C1] __sys_sendmsg+0xcd/0x170 [ 33.592966][ C1] do_syscall_64+0xc6/0x1e0 [ 33.593138][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 33.593354][ C1] [ 33.593440][ C1] -> (&ndev->lock){++-.}-{2:2} { [ 33.593614][ C1] HARDIRQ-ON-W at: [ 33.593748][ C1] __lock_acquire+0x797/0x1570 [ 33.594068][ C1] lock_acquire.part.0+0xeb/0x330 [ 33.594283][ C1] _raw_write_lock_bh+0x38/0x50 [ 33.594497][ C1] addrconf_permanent_addr+0x6e/0x670 [ 33.594813][ C1] addrconf_notify+0x749/0xd60 [ 33.595029][ C1] notifier_call_chain+0xcd/0x150 [ 33.595241][ C1] __dev_notify_flags+0xe6/0x250 [ 33.595456][ C1] dev_change_flags+0xec/0x160 [ 33.595877][ C1] do_setlink+0x7d6/0x21e0 [ 33.596113][ C1] __rtnl_newlink+0xaa7/0xd80 [ 33.596329][ C1] rtnl_newlink+0x63/0xa0 [ 33.596651][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 33.596865][ C1] netlink_rcv_skb+0x130/0x360 [ 33.597082][ C1] netlink_unicast+0x449/0x710 [ 33.597296][ C1] netlink_sendmsg+0x723/0xbe0 [ 33.597618][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 33.597838][ C1] ___sys_sendmsg+0xee/0x170 [ 33.598051][ C1] __sys_sendmsg+0xcd/0x170 [ 33.598267][ C1] do_syscall_64+0xc6/0x1e0 [ 33.598482][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 33.598740][ C1] HARDIRQ-ON-R at: [ 33.598873][ C1] __lock_acquire+0x797/0x1570 [ 33.599088][ C1] lock_acquire.part.0+0xeb/0x330 [ 33.599303][ C1] _raw_read_lock_bh+0x44/0x80 [ 33.599519][ C1] inet6_fill_ifla6_attrs+0x516/0x740 [ 33.599841][ C1] inet6_fill_link_af+0x5e/0xe0 [ 33.600057][ C1] rtnl_fill_ifinfo+0x1612/0x29e0 [ 33.600273][ C1] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 33.600592][ C1] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 33.600847][ C1] rtmsg_ifinfo+0x5b/0xa0 [ 33.601064][ C1] register_netdevice+0x1177/0x1690 [ 33.601279][ C1] register_netdev+0x20/0x40 [ 33.601605][ C1] sit_init_net+0x250/0x4f0 [ 33.601820][ C1] ops_init+0x9b/0x560 [ 33.601994][ C1] register_pernet_operations+0x2db/0x710 [ 33.602251][ C1] register_pernet_device+0x2a/0x60 [ 33.602467][ C1] sit_init+0x23/0xe0 [ 33.602645][ C1] do_one_initcall+0x8d/0x1e0 [ 33.602860][ C1] do_initcalls+0x1b2/0x3e0 [ 33.603078][ C1] kernel_init_freeable+0x232/0x310 [ 33.603292][ C1] kernel_init+0x20/0x200 [ 33.603506][ C1] ret_from_fork+0x31/0x70 [ 33.603824][ C1] ret_from_fork_asm+0x1a/0x30 [ 33.604042][ C1] IN-SOFTIRQ-W at: [ 33.604171][ C1] __lock_acquire+0x797/0x1570 [ 33.604385][ C1] lock_acquire.part.0+0xeb/0x330 [ 33.604703][ C1] _raw_write_lock+0x30/0x40 [ 33.604915][ C1] addrconf_rs_timer+0xa9/0x730 [ 33.605125][ C1] call_timer_fn+0x13b/0x230 [ 33.605444][ C1] __run_timers+0x545/0x810 [ 33.605660][ C1] run_timer_softirq+0xe8/0x1b0 [ 33.605873][ C1] __do_softirq+0x1f8/0x5df [ 33.606120][ C1] irq_exit_rcu+0x97/0xc0 [ 33.606337][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 33.606596][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 33.606857][ C1] __kernel_text_address+0x12/0x40 [ 33.607187][ C1] unwind_get_return_address+0x5e/0xa0 [ 33.607403][ C1] arch_stack_walk+0xa2/0xf0 [ 33.607620][ C1] stack_trace_save+0x94/0xd0 [ 33.607947][ C1] set_track_prepare+0x79/0xd0 [ 33.608164][ C1] __alloc_object+0x2bf/0x6f0 [ 33.608376][ C1] __create_object+0x22/0xb0 [ 33.608800][ C1] kmalloc_trace+0x22a/0x280 [ 33.609017][ C1] p9_fid_create+0x43/0x3a0 [ 33.609232][ C1] p9_client_walk+0xc3/0x650 [ 33.609448][ C1] v9fs_vfs_lookup.part.0+0x12f/0x390 [ 33.609770][ C1] __lookup_slow+0x209/0x3c0 [ 33.609985][ C1] lookup_one_unlocked+0xeb/0x110 [ 33.610196][ C1] ovl_lookup_single+0x199/0xd20 [ 33.610519][ C1] ovl_lookup_layer+0x316/0x440 [ 33.610733][ C1] ovl_lookup+0x853/0x1ae0 [ 33.610946][ C1] lookup_open.isra.0+0x6d9/0x1340 [ 33.611160][ C1] open_last_lookups+0x25c/0xcd0 [ 33.611375][ C1] path_openat+0x16f/0x440 [ 33.611589][ C1] do_filp_open+0x1b3/0x3e0 [ 33.611805][ C1] do_open_execat+0xab/0x2d0 [ 33.612124][ C1] alloc_bprm+0x21/0xaf0 [ 33.612338][ C1] do_execveat_common.isra.0+0x196/0x6a0 [ 33.612596][ C1] __x64_sys_execve+0x8c/0xb0 [ 33.612917][ C1] do_syscall_64+0xc6/0x1e0 [ 33.613136][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 33.613392][ C1] INITIAL USE at: [ 33.613524][ C1] __lock_acquire+0x797/0x1570 [ 33.613842][ C1] lock_acquire.part.0+0xeb/0x330 [ 33.614055][ C1] _raw_write_lock_bh+0x38/0x50 [ 33.614270][ C1] addrconf_permanent_addr+0x6e/0x670 [ 33.614588][ C1] addrconf_notify+0x749/0xd60 [ 33.614804][ C1] notifier_call_chain+0xcd/0x150 [ 33.615035][ C1] __dev_notify_flags+0xe6/0x250 [ 33.615250][ C1] dev_change_flags+0xec/0x160 [ 33.615572][ C1] do_setlink+0x7d6/0x21e0 [ 33.615786][ C1] __rtnl_newlink+0xaa7/0xd80 [ 33.616013][ C1] rtnl_newlink+0x63/0xa0 [ 33.616229][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 33.616443][ C1] netlink_rcv_skb+0x130/0x360 [ 33.616662][ C1] netlink_unicast+0x449/0x710 [ 33.616980][ C1] netlink_sendmsg+0x723/0xbe0 [ 33.617198][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 33.617411][ C1] ___sys_sendmsg+0xee/0x170 [ 33.617625][ C1] __sys_sendmsg+0xcd/0x170 [ 33.617943][ C1] do_syscall_64+0xc6/0x1e0 [ 33.618157][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 33.618415][ C1] INITIAL READ USE at: [ 33.618646][ C1] __lock_acquire+0x797/0x1570 [ 33.618860][ C1] lock_acquire.part.0+0xeb/0x330 [ 33.619073][ C1] _raw_read_lock_bh+0x44/0x80 [ 33.619286][ C1] inet6_fill_ifla6_attrs+0x516/0x740 [ 33.619651][ C1] inet6_fill_link_af+0x5e/0xe0 [ 33.619868][ C1] rtnl_fill_ifinfo+0x1612/0x29e0 [ 33.620083][ C1] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 33.620443][ C1] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 33.620699][ C1] rtmsg_ifinfo+0x5b/0xa0 [ 33.620911][ C1] register_netdevice+0x1177/0x1690 [ 33.621273][ C1] register_netdev+0x20/0x40 [ 33.621487][ C1] sit_init_net+0x250/0x4f0 [ 33.621699][ C1] ops_init+0x9b/0x560 [ 33.622124][ C1] register_pernet_operations+0x2db/0x710 [ 33.622381][ C1] register_pernet_device+0x2a/0x60 [ 33.622636][ C1] sit_init+0x23/0xe0 [ 33.622958][ C1] do_one_initcall+0x8d/0x1e0 [ 33.623173][ C1] do_initcalls+0x1b2/0x3e0 [ 33.623388][ C1] kernel_init_freeable+0x232/0x310 [ 33.623746][ C1] kernel_init+0x20/0x200 [ 33.623959][ C1] ret_from_fork+0x31/0x70 [ 33.624176][ C1] ret_from_fork_asm+0x1a/0x30 [ 33.624390][ C1] } [ 33.624581][ C1] ... key at: [] __key.36+0x0/0x40 [ 33.624835][ C1] ... acquired at: [ 33.624961][ C1] mark_lock+0x28d/0x3e0 [ 33.625132][ C1] mark_usage+0xd9/0x2a0 [ 33.625408][ C1] __lock_acquire+0x797/0x1570 [ 33.625579][ C1] lock_acquire.part.0+0xeb/0x330 [ 33.625749][ C1] _raw_write_lock+0x30/0x40 [ 33.625945][ C1] addrconf_rs_timer+0xa9/0x730 [ 33.626118][ C1] call_timer_fn+0x13b/0x230 [ 33.626288][ C1] __run_timers+0x545/0x810 [ 33.626460][ C1] run_timer_softirq+0xe8/0x1b0 [ 33.626635][ C1] __do_softirq+0x1f8/0x5df [ 33.626805][ C1] irq_exit_rcu+0x97/0xc0 [ 33.627079][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 33.627297][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 33.627509][ C1] __kernel_text_address+0x12/0x40 [ 33.627681][ C1] unwind_get_return_address+0x5e/0xa0 [ 33.627956][ C1] arch_stack_walk+0xa2/0xf0 [ 33.628128][ C1] stack_trace_save+0x94/0xd0 [ 33.628299][ C1] set_track_prepare+0x79/0xd0 [ 33.628470][ C1] __alloc_object+0x2bf/0x6f0 [ 33.628742][ C1] __create_object+0x22/0xb0 [ 33.628914][ C1] kmalloc_trace+0x22a/0x280 [ 33.629086][ C1] p9_fid_create+0x43/0x3a0 [ 33.629256][ C1] p9_client_walk+0xc3/0x650 [ 33.629532][ C1] v9fs_vfs_lookup.part.0+0x12f/0x390 [ 33.629705][ C1] __lookup_slow+0x209/0x3c0 [ 33.629875][ C1] lookup_one_unlocked+0xeb/0x110 [ 33.630059][ C1] ovl_lookup_single+0x199/0xd20 [ 33.630232][ C1] ovl_lookup_layer+0x316/0x440 [ 33.630405][ C1] ovl_lookup+0x853/0x1ae0 [ 33.630577][ C1] lookup_open.isra.0+0x6d9/0x1340 [ 33.630748][ C1] open_last_lookups+0x25c/0xcd0 [ 33.630922][ C1] path_openat+0x16f/0x440 [ 33.631198][ C1] do_filp_open+0x1b3/0x3e0 [ 33.631371][ C1] do_open_execat+0xab/0x2d0 [ 33.631541][ C1] alloc_bprm+0x21/0xaf0 [ 33.631716][ C1] do_execveat_common.isra.0+0x196/0x6a0 [ 33.632032][ C1] __x64_sys_execve+0x8c/0xb0 [ 33.632203][ C1] do_syscall_64+0xc6/0x1e0 [ 33.632375][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 33.632588][ C1] [ 33.632777][ C1] [ 33.632777][ C1] stack backtrace: [ 33.632987][ C1] CPU: 1 PID: 318 Comm: ip Not tainted 6.9.0-rc1-virtme #1 [ 33.633242][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 33.633725][ C1] Call Trace: [ 33.633860][ C1] [ 33.633949][ C1] dump_stack_lvl+0x82/0xd0 [ 33.634126][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 33.634454][ C1] ? kernel_text_address+0xce/0xe0 [ 33.634627][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 33.634841][ C1] ? __pfx_usage_skip+0x10/0x10 [ 33.635012][ C1] ? __pfx_usage_match+0x10/0x10 [ 33.635182][ C1] ? arch_stack_walk+0xa2/0xf0 [ 33.635353][ C1] mark_lock_irq+0x4cd/0xa10 [ 33.635523][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 33.635696][ C1] ? __pfx_stack_trace_save+0x10/0x10 [ 33.635981][ C1] ? save_trace+0x8f/0x5b0 [ 33.636154][ C1] mark_lock+0x28d/0x3e0 [ 33.636283][ C1] ? __pfx_stack_trace_save+0x10/0x10 [ 33.636455][ C1] mark_usage+0xd9/0x2a0 [ 33.636586][ C1] __lock_acquire+0x797/0x1570 [ 33.636862][ C1] ? __pfx_validate_chain+0x10/0x10 [ 33.637032][ C1] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 33.637204][ C1] lock_acquire.part.0+0xeb/0x330 [ 33.637377][ C1] ? addrconf_rs_timer+0xa9/0x730 [ 33.637649][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 33.637817][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 33.637986][ C1] ? addrconf_rs_timer+0xa9/0x730 [ 33.638156][ C1] ? lock_acquire+0x32/0xc0 [ 33.638325][ C1] ? addrconf_rs_timer+0xa9/0x730 [ 33.638598][ C1] _raw_write_lock+0x30/0x40 [ 33.638766][ C1] ? addrconf_rs_timer+0xa9/0x730 [ 33.638935][ C1] addrconf_rs_timer+0xa9/0x730 [ 33.639107][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 33.639278][ C1] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 33.639450][ C1] ? call_timer_fn+0xe8/0x230 [ 33.639622][ C1] ? lock_acquire+0x32/0xc0 [ 33.639792][ C1] ? call_timer_fn+0xe8/0x230 [ 33.640067][ C1] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 33.640238][ C1] call_timer_fn+0x13b/0x230 [ 33.640408][ C1] ? call_timer_fn+0xe8/0x230 [ 33.640585][ C1] ? call_timer_fn+0xe8/0x230 [ 33.640858][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 33.641029][ C1] ? hlock_class+0x4e/0x130 [ 33.641199][ C1] ? mark_held_locks+0x9e/0xe0 [ 33.641373][ C1] __run_timers+0x545/0x810 [ 33.641543][ C1] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 33.641817][ C1] ? __pfx___run_timers+0x10/0x10 [ 33.641994][ C1] ? do_raw_spin_lock+0x131/0x270 [ 33.642163][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 33.642338][ C1] ? lock_acquire+0x32/0xc0 [ 33.642613][ C1] ? run_timer_softirq+0xe0/0x1b0 [ 33.642784][ C1] run_timer_softirq+0xe8/0x1b0 [ 33.642953][ C1] __do_softirq+0x1f8/0x5df [ 33.643124][ C1] irq_exit_rcu+0x97/0xc0 [ 33.643358][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 33.643531][ C1] [ 33.643618][ C1] [ 33.643717][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 33.643932][ C1] RIP: 0010:__kernel_text_address+0x12/0x40 [ 33.644153][ C1] Code: 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 0f 1f 44 00 00 53 48 89 fb e8 fe fe ff ff <85> c0 75 1b 48 81 fb 00 10 42 92 72 0c 31 c0 48 81 fb 65 ae 54 92 [ 33.644764][ C1] RSP: 0018:ffffc90000f9ee28 EFLAGS: 00000292 [ 33.645095][ C1] RAX: 0000000000000001 RBX: ffffffff8fde8aa3 RCX: ffffc90000fa0001 [ 33.645355][ C1] RDX: 1ffff920001f3dd5 RSI: 0000000000000001 RDI: ffffffff8fde8aa3 [ 33.645612][ C1] RBP: ffffc90000f9eea8 R08: ffffc90000f9ee90 R09: fffff520001f3db3 [ 33.645992][ C1] R10: ffffc90000f9ee50 R11: ffffc90000f9ee91 R12: ffffc90000f9ef18 [ 33.646249][ C1] R13: 0000000000000000 R14: ffff88800597c5c0 R15: 0000000000000001 [ 33.646508][ C1] ? p9_client_walk+0xc3/0x650 [ 33.646789][ C1] ? p9_client_walk+0xc3/0x650 [ 33.646962][ C1] ? __kernel_text_address+0x12/0x40 [ 33.647133][ C1] unwind_get_return_address+0x5e/0xa0 [ 33.647304][ C1] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 33.647619][ C1] arch_stack_walk+0xa2/0xf0 [ 33.647792][ C1] ? p9_client_walk+0xc3/0x650 [ 33.647964][ C1] stack_trace_save+0x94/0xd0 [ 33.648135][ C1] ? __pfx_stack_trace_save+0x10/0x10 [ 33.648518][ C1] ? ___slab_alloc+0xb70/0x10a0 [ 33.648700][ C1] ? kmem_cache_alloc+0x42/0x270 [ 33.648871][ C1] ? __alloc_object+0x39/0x6f0 [ 33.649043][ C1] ? __pfx___lock_release+0x10/0x10 [ 33.649215][ C1] set_track_prepare+0x79/0xd0 [ 33.649384][ C1] ? __pfx_set_track_prepare+0x10/0x10 [ 33.649555][ C1] ? kmalloc_trace+0x22a/0x280 [ 33.649727][ C1] ? p9_fid_create+0x43/0x3a0 [ 33.650001][ C1] ? kasan_save_track+0x14/0x30 [ 33.650176][ C1] ? lockdep_init_map_type+0x2cb/0x7c0 [ 33.650351][ C1] ? __raw_spin_lock_init+0x3f/0x110 [ 33.650522][ C1] __alloc_object+0x2bf/0x6f0 [ 33.650694][ C1] __create_object+0x22/0xb0 [ 33.650973][ C1] kmalloc_trace+0x22a/0x280 [ 33.651155][ C1] p9_fid_create+0x43/0x3a0 [ 33.651327][ C1] p9_client_walk+0xc3/0x650 [ 33.651499][ C1] ? __pfx_v9fs_fid_find+0x10/0x10 [ 33.651776][ C1] ? __pfx_p9_client_walk+0x10/0x10 [ 33.651949][ C1] ? d_alloc_parallel+0x76a/0xed0 [ 33.652120][ C1] ? v9fs_fid_lookup_with_uid+0xa2/0xaf0 [ 33.652291][ C1] ? v9fs_vfs_lookup.part.0+0x12f/0x390 [ 33.652564][ C1] v9fs_vfs_lookup.part.0+0x12f/0x390 [ 33.652734][ C1] ? __pfx_v9fs_vfs_lookup.part.0+0x10/0x10 [ 33.652946][ C1] ? lockdep_init_map_type+0x2cb/0x7c0 [ 33.653123][ C1] __lookup_slow+0x209/0x3c0 [ 33.653399][ C1] ? __pfx___lookup_slow+0x10/0x10 [ 33.653571][ C1] ? lookup_one_unlocked+0xdc/0x110 [ 33.653744][ C1] ? d_lookup+0x7b/0xe0 [ 33.653875][ C1] lookup_one_unlocked+0xeb/0x110 [ 33.654047][ C1] ? do_execveat_common.isra.0+0x196/0x6a0 [ 33.654258][ C1] ? __pfx_lookup_one_unlocked+0x10/0x10 [ 33.654428][ C1] ovl_lookup_single+0x199/0xd20 [ 33.654603][ C1] ? __lock_release+0x103/0x460 [ 33.654775][ C1] ? __pfx_ovl_lookup_single+0x10/0x10 [ 33.655050][ C1] ? __pfx___lock_release+0x10/0x10 [ 33.655222][ C1] ? hlock_class+0x4e/0x130 [ 33.655392][ C1] ? mark_lock+0x38/0x3e0 [ 33.655524][ C1] ovl_lookup_layer+0x316/0x440 [ 33.655799][ C1] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 33.656034][ C1] ? __pfx_ovl_lookup_layer+0x10/0x10 [ 33.656209][ C1] ? __kasan_kmalloc+0x7f/0x90 [ 33.656381][ C1] ? trace_kmalloc+0x2a/0xe0 [ 33.656655][ C1] ? __kmalloc+0x1d7/0x3c0 [ 33.656828][ C1] ovl_lookup+0x853/0x1ae0 [ 33.656998][ C1] ? __lock_release+0x103/0x460 [ 33.657173][ C1] ? d_alloc_parallel+0x5f2/0xed0 [ 33.657451][ C1] ? __pfx___lock_release+0x10/0x10 [ 33.657623][ C1] ? __pfx_ovl_lookup+0x10/0x10 [ 33.657799][ C1] ? __pfx_d_alloc_parallel+0x10/0x10 [ 33.657973][ C1] ? __d_lookup+0x1e0/0x390 [ 33.658144][ C1] ? __pfx_ovl_lookup+0x10/0x10 [ 33.658316][ C1] lookup_open.isra.0+0x6d9/0x1340 [ 33.658486][ C1] ? lookup_one_unlocked+0x10/0x110 [ 33.658657][ C1] ? __lock_release+0x103/0x460 [ 33.658829][ C1] ? __pfx_lookup_open.isra.0+0x10/0x10 [ 33.659003][ C1] ? open_last_lookups+0xa6c/0xcd0 [ 33.659178][ C1] open_last_lookups+0x25c/0xcd0 [ 33.659360][ C1] path_openat+0x16f/0x440 [ 33.659530][ C1] ? __pfx_path_openat+0x10/0x10 [ 33.659802][ C1] ? hlock_class+0x4e/0x130 [ 33.659990][ C1] do_filp_open+0x1b3/0x3e0 [ 33.660162][ C1] ? validate_chain+0x130/0x9b0 [ 33.660338][ C1] ? __pfx_do_filp_open+0x10/0x10 [ 33.660613][ C1] ? __pfx_validate_chain+0x10/0x10 [ 33.660788][ C1] ? __lock_acquire+0xaf0/0x1570 [ 33.660961][ C1] do_open_execat+0xab/0x2d0 [ 33.661135][ C1] ? __pfx_do_open_execat+0x10/0x10 [ 33.661306][ C1] ? __might_fault+0xc3/0x170 [ 33.661586][ C1] ? lock_acquire+0x32/0xc0 [ 33.661757][ C1] alloc_bprm+0x21/0xaf0 [ 33.661887][ C1] do_execveat_common.isra.0+0x196/0x6a0 [ 33.662060][ C1] ? getname_flags+0xbd/0x3d0 [ 33.662232][ C1] __x64_sys_execve+0x8c/0xb0 [ 33.662406][ C1] do_syscall_64+0xc6/0x1e0 [ 33.662583][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 33.662796][ C1] RIP: 0033:0x7f7d294bd40b [ 33.662972][ C1] Code: c0 75 03 5f ff e7 c3 48 8b 0d f1 a9 1b 00 f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 80 00 00 00 00 f3 0f 1e fa b8 3b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c5 a9 1b 00 f7 d8 64 89 01 48 [ 33.663582][ C1] RSP: 002b:00007ffe6ecb93e8 EFLAGS: 00000202 ORIG_RAX: 000000000000003b [ 33.663945][ C1] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f7d294bd40b [ 33.664204][ C1] RDX: 00007ffe6ecb9868 RSI: 00007ffe6ecb9838 RDI: 00007ffe6ecb93f0 [ 33.664460][ C1] RBP: 00007ffe6ecb9500 R08: 0000000000000fff R09: 00007ffe6ecbbe96 [ 33.664819][ C1] R10: 00007f7d2948f700 R11: 0000000000000202 R12: 00007ffe6ecb9838 [ 33.665074][ C1] R13: 00007ffe6ecb9868 R14: 00007ffe6ecbb905 R15: 00007ffe6ecbbe79 [ 33.665445][ C1] [ 42.698669][ T367] netem: version 1.3