[ 27.773616][ T259] ip (259) used greatest stack depth: 23920 bytes left [ 35.114363][ C1] [ 35.114540][ C1] ======================================================== [ 35.114936][ C1] WARNING: possible irq lock inversion dependency detected [ 35.115337][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 35.115597][ C1] -------------------------------------------------------- [ 35.115987][ C1] ip/314 just changed the state of lock: [ 35.116253][ C1] ffff888006823d80 (&ndev->lock){++-.}-{2:2}, at: addrconf_rs_timer+0xa9/0x730 [ 35.116739][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 35.117151][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 35.117158][ C1] [ 35.117158][ C1] [ 35.117158][ C1] and interrupts could create inverse lock ordering between them. [ 35.117158][ C1] [ 35.118130][ C1] [ 35.118130][ C1] other info that might help us debug this: [ 35.118519][ C1] Possible interrupt unsafe locking scenario: [ 35.118519][ C1] [ 35.118923][ C1] CPU0 CPU1 [ 35.119202][ C1] ---- ---- [ 35.119489][ C1] lock(&p->alloc_lock); [ 35.119698][ C1] local_irq_disable(); [ 35.120024][ C1] lock(&ndev->lock); [ 35.120356][ C1] lock(&p->alloc_lock); [ 35.120691][ C1] [ 35.120897][ C1] lock(&ndev->lock); [ 35.121107][ C1] [ 35.121107][ C1] *** DEADLOCK *** [ 35.121107][ C1] [ 35.121504][ C1] 3 locks held by ip/314: [ 35.121708][ C1] #0: ffff8880062d48f8 (&sig->cred_guard_mutex){+.+.}-{3:3}, at: bprm_execve+0x51/0x4f0 [ 35.122208][ C1] #1: ffff888006fe34c8 (&sb->s_type->i_mutex_key#5){++++}-{3:3}, at: netfs_start_io_direct+0xce/0x210 [ 35.122754][ C1] #2: ffffc900001d8d68 ((&ndev->rs_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 35.123251][ C1] [ 35.123251][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 35.123699][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 35.123983][ C1] HARDIRQ-ON-W at: [ 35.124188][ C1] __lock_acquire+0x797/0x1570 [ 35.124542][ C1] lock_acquire.part.0+0xeb/0x330 [ 35.124864][ C1] _raw_spin_lock+0x30/0x40 [ 35.125215][ C1] set_mems_allowed+0x1d/0x210 [ 35.125547][ C1] kernel_init_freeable+0x72/0x310 [ 35.125872][ C1] kernel_init+0x20/0x200 [ 35.126189][ C1] ret_from_fork+0x31/0x70 [ 35.126531][ C1] ret_from_fork_asm+0x1a/0x30 [ 35.126891][ C1] SOFTIRQ-ON-W at: [ 35.127109][ C1] __lock_acquire+0x797/0x1570 [ 35.127501][ C1] lock_acquire.part.0+0xeb/0x330 [ 35.127846][ C1] _raw_spin_lock+0x30/0x40 [ 35.128181][ C1] set_mems_allowed+0x1d/0x210 [ 35.128520][ C1] kernel_init_freeable+0x72/0x310 [ 35.128846][ C1] kernel_init+0x20/0x200 [ 35.129181][ C1] ret_from_fork+0x31/0x70 [ 35.129534][ C1] ret_from_fork_asm+0x1a/0x30 [ 35.129874][ C1] INITIAL USE at: [ 35.130086][ C1] __lock_acquire+0x797/0x1570 [ 35.130419][ C1] lock_acquire.part.0+0xeb/0x330 [ 35.130755][ C1] _raw_spin_lock+0x30/0x40 [ 35.131100][ C1] set_mems_allowed+0x1d/0x210 [ 35.131445][ C1] kernel_init_freeable+0x72/0x310 [ 35.131795][ C1] kernel_init+0x20/0x200 [ 35.132149][ C1] ret_from_fork+0x31/0x70 [ 35.132500][ C1] ret_from_fork_asm+0x1a/0x30 [ 35.132823][ C1] } [ 35.132961][ C1] ... key at: [] __key.387+0x0/0x40 [ 35.133367][ C1] ... acquired at: [ 35.133580][ C1] __lock_acquire+0xaf0/0x1570 [ 35.133862][ C1] lock_acquire.part.0+0xeb/0x330 [ 35.134134][ C1] _raw_spin_lock+0x30/0x40 [ 35.134406][ C1] __get_task_comm+0x27/0x70 [ 35.134689][ C1] ref_tracker_alloc+0x2ee/0x490 [ 35.134975][ C1] netdev_get_by_index+0x5e/0x80 [ 35.135253][ C1] fib6_nh_init+0x3d8/0x15b0 [ 35.135530][ C1] ip6_route_info_create+0xf18/0x17d0 [ 35.135807][ C1] ip6_route_add+0x1c/0x140 [ 35.136089][ C1] addrconf_prefix_route+0x1cc/0x2b0 [ 35.136364][ C1] addrconf_permanent_addr+0x32f/0x670 [ 35.136634][ C1] addrconf_notify+0x749/0xd60 [ 35.136919][ C1] notifier_call_chain+0xcd/0x150 [ 35.137128][ C1] __dev_notify_flags+0xe6/0x250 [ 35.137300][ C1] dev_change_flags+0xec/0x160 [ 35.137473][ C1] do_setlink+0x7d6/0x21e0 [ 35.137665][ C1] __rtnl_newlink+0xaa7/0xd80 [ 35.137835][ C1] rtnl_newlink+0x63/0xa0 [ 35.138007][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 35.138175][ C1] netlink_rcv_skb+0x130/0x360 [ 35.138346][ C1] netlink_unicast+0x449/0x710 [ 35.138515][ C1] netlink_sendmsg+0x723/0xbe0 [ 35.138692][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 35.138863][ C1] ___sys_sendmsg+0xee/0x170 [ 35.139035][ C1] __sys_sendmsg+0xcd/0x170 [ 35.139215][ C1] do_syscall_64+0xc6/0x1e0 [ 35.139388][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 35.139610][ C1] [ 35.139698][ C1] -> (&ndev->lock){++-.}-{2:2} { [ 35.139875][ C1] HARDIRQ-ON-W at: [ 35.140002][ C1] __lock_acquire+0x797/0x1570 [ 35.140222][ C1] lock_acquire.part.0+0xeb/0x330 [ 35.140436][ C1] _raw_write_lock_bh+0x38/0x50 [ 35.140660][ C1] addrconf_permanent_addr+0x6e/0x670 [ 35.140871][ C1] addrconf_notify+0x749/0xd60 [ 35.141086][ C1] notifier_call_chain+0xcd/0x150 [ 35.141295][ C1] __dev_notify_flags+0xe6/0x250 [ 35.141507][ C1] dev_change_flags+0xec/0x160 [ 35.141732][ C1] do_setlink+0x7d6/0x21e0 [ 35.141950][ C1] __rtnl_newlink+0xaa7/0xd80 [ 35.142165][ C1] rtnl_newlink+0x63/0xa0 [ 35.142379][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 35.142601][ C1] netlink_rcv_skb+0x130/0x360 [ 35.142951][ C1] netlink_unicast+0x449/0x710 [ 35.143305][ C1] netlink_sendmsg+0x723/0xbe0 [ 35.143547][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 35.143778][ C1] ___sys_sendmsg+0xee/0x170 [ 35.143991][ C1] __sys_sendmsg+0xcd/0x170 [ 35.144204][ C1] do_syscall_64+0xc6/0x1e0 [ 35.144421][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 35.144686][ C1] HARDIRQ-ON-R at: [ 35.144812][ C1] __lock_acquire+0x797/0x1570 [ 35.145026][ C1] lock_acquire.part.0+0xeb/0x330 [ 35.145245][ C1] _raw_read_lock_bh+0x44/0x80 [ 35.145457][ C1] inet6_fill_ifla6_attrs+0x516/0x740 [ 35.145682][ C1] inet6_fill_link_af+0x5e/0xe0 [ 35.145892][ C1] rtnl_fill_ifinfo+0x1612/0x29e0 [ 35.146102][ C1] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 35.146315][ C1] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 35.146574][ C1] rtmsg_ifinfo+0x5b/0xa0 [ 35.146967][ C1] register_netdevice+0x1177/0x1690 [ 35.147202][ C1] register_netdev+0x20/0x40 [ 35.147418][ C1] sit_init_net+0x250/0x4f0 [ 35.147631][ C1] ops_init+0x9b/0x560 [ 35.147805][ C1] register_pernet_operations+0x2db/0x710 [ 35.148069][ C1] register_pernet_device+0x2a/0x60 [ 35.148283][ C1] sit_init+0x23/0xe0 [ 35.148456][ C1] do_one_initcall+0x8d/0x1e0 [ 35.148677][ C1] do_initcalls+0x1b2/0x3e0 [ 35.148902][ C1] kernel_init_freeable+0x232/0x310 [ 35.149123][ C1] kernel_init+0x20/0x200 [ 35.149341][ C1] ret_from_fork+0x31/0x70 [ 35.149564][ C1] ret_from_fork_asm+0x1a/0x30 [ 35.149784][ C1] IN-SOFTIRQ-W at: [ 35.149919][ C1] __lock_acquire+0x797/0x1570 [ 35.150140][ C1] lock_acquire.part.0+0xeb/0x330 [ 35.150360][ C1] _raw_write_lock+0x30/0x40 [ 35.150578][ C1] addrconf_rs_timer+0xa9/0x730 [ 35.150800][ C1] call_timer_fn+0x13b/0x230 [ 35.151022][ C1] __run_timers+0x545/0x810 [ 35.151240][ C1] run_timer_softirq+0xe8/0x1b0 [ 35.151459][ C1] __do_softirq+0x1f8/0x5df [ 35.151676][ C1] irq_exit_rcu+0x97/0xc0 [ 35.151899][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 35.152166][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 35.152434][ C1] rcu_is_watching+0x30/0x70 [ 35.152793][ C1] kernel_text_address+0x30/0xe0 [ 35.153013][ C1] __kernel_text_address+0x12/0x40 [ 35.153230][ C1] unwind_get_return_address+0x5e/0xa0 [ 35.153559][ C1] arch_stack_walk+0xa2/0xf0 [ 35.153784][ C1] stack_trace_save+0x94/0xd0 [ 35.154006][ C1] kasan_save_stack+0x24/0x50 [ 35.154222][ C1] __kasan_record_aux_stack+0x8e/0xa0 [ 35.154555][ C1] __call_rcu_common.constprop.0+0x9e/0x830 [ 35.154813][ C1] kfree+0x142/0x230 [ 35.154986][ C1] p9_req_put+0x1c6/0x210 [ 35.155318][ C1] p9_client_read_once+0x2d9/0x860 [ 35.155538][ C1] p9_client_read+0xfd/0x160 [ 35.155751][ C1] v9fs_issue_read+0x104/0x1b0 [ 35.155975][ C1] netfs_rreq_submit_slice+0x3da/0x5f0 [ 35.156191][ C1] netfs_begin_read+0x450/0xb20 [ 35.156407][ C1] netfs_unbuffered_read_iter_locked+0x5c4/0x810 [ 35.156662][ C1] netfs_unbuffered_read_iter+0xaa/0xf0 [ 35.157049][ C1] do_iter_readv_writev+0x42f/0x620 [ 35.157265][ C1] vfs_iter_read+0x122/0x450 [ 35.157477][ C1] backing_file_read_iter+0x4bc/0x6a0 [ 35.157807][ C1] ovl_read_iter+0x1ff/0x270 [ 35.158021][ C1] __kernel_read+0x336/0x9e0 [ 35.158244][ C1] search_binary_handler+0xb8/0x550 [ 35.158576][ C1] exec_binprm+0x120/0x400 [ 35.158789][ C1] bprm_execve+0xe9/0x4f0 [ 35.159001][ C1] do_execveat_common.isra.0+0x4a6/0x6a0 [ 35.159254][ C1] __x64_sys_execve+0x8c/0xb0 [ 35.159694][ C1] do_syscall_64+0xc6/0x1e0 [ 35.159914][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 35.160179][ C1] INITIAL USE at: [ 35.160425][ C1] __lock_acquire+0x797/0x1570 [ 35.160642][ C1] lock_acquire.part.0+0xeb/0x330 [ 35.160874][ C1] _raw_write_lock_bh+0x38/0x50 [ 35.161091][ C1] addrconf_permanent_addr+0x6e/0x670 [ 35.161420][ C1] addrconf_notify+0x749/0xd60 [ 35.161634][ C1] notifier_call_chain+0xcd/0x150 [ 35.161853][ C1] __dev_notify_flags+0xe6/0x250 [ 35.162069][ C1] dev_change_flags+0xec/0x160 [ 35.162283][ C1] do_setlink+0x7d6/0x21e0 [ 35.162498][ C1] __rtnl_newlink+0xaa7/0xd80 [ 35.162824][ C1] rtnl_newlink+0x63/0xa0 [ 35.163039][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 35.163257][ C1] netlink_rcv_skb+0x130/0x360 [ 35.163474][ C1] netlink_unicast+0x449/0x710 [ 35.163802][ C1] netlink_sendmsg+0x723/0xbe0 [ 35.164015][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 35.164230][ C1] ___sys_sendmsg+0xee/0x170 [ 35.164563][ C1] __sys_sendmsg+0xcd/0x170 [ 35.164774][ C1] do_syscall_64+0xc6/0x1e0 [ 35.164993][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 35.165366][ C1] INITIAL READ USE at: [ 35.165497][ C1] __lock_acquire+0x797/0x1570 [ 35.165714][ C1] lock_acquire.part.0+0xeb/0x330 [ 35.165926][ C1] _raw_read_lock_bh+0x44/0x80 [ 35.166140][ C1] inet6_fill_ifla6_attrs+0x516/0x740 [ 35.166402][ C1] inet6_fill_link_af+0x5e/0xe0 [ 35.166620][ C1] rtnl_fill_ifinfo+0x1612/0x29e0 [ 35.166955][ C1] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 35.167210][ C1] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 35.167470][ C1] rtmsg_ifinfo+0x5b/0xa0 [ 35.167799][ C1] register_netdevice+0x1177/0x1690 [ 35.168061][ C1] register_netdev+0x20/0x40 [ 35.168294][ C1] sit_init_net+0x250/0x4f0 [ 35.168513][ C1] ops_init+0x9b/0x560 [ 35.168840][ C1] register_pernet_operations+0x2db/0x710 [ 35.169091][ C1] register_pernet_device+0x2a/0x60 [ 35.169342][ C1] sit_init+0x23/0xe0 [ 35.169671][ C1] do_one_initcall+0x8d/0x1e0 [ 35.169887][ C1] do_initcalls+0x1b2/0x3e0 [ 35.170096][ C1] kernel_init_freeable+0x232/0x310 [ 35.170476][ C1] kernel_init+0x20/0x200 [ 35.170685][ C1] ret_from_fork+0x31/0x70 [ 35.170896][ C1] ret_from_fork_asm+0x1a/0x30 [ 35.171112][ C1] } [ 35.171197][ C1] ... key at: [] __key.36+0x0/0x40 [ 35.171448][ C1] ... acquired at: [ 35.171573][ C1] mark_lock+0x28d/0x3e0 [ 35.171743][ C1] mark_usage+0xd9/0x2a0 [ 35.171910][ C1] __lock_acquire+0x797/0x1570 [ 35.172103][ C1] lock_acquire.part.0+0xeb/0x330 [ 35.172274][ C1] _raw_write_lock+0x30/0x40 [ 35.172442][ C1] addrconf_rs_timer+0xa9/0x730 [ 35.172836][ C1] call_timer_fn+0x13b/0x230 [ 35.173005][ C1] __run_timers+0x545/0x810 [ 35.173170][ C1] run_timer_softirq+0xe8/0x1b0 [ 35.173340][ C1] __do_softirq+0x1f8/0x5df [ 35.173617][ C1] irq_exit_rcu+0x97/0xc0 [ 35.173812][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 35.174027][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 35.174240][ C1] rcu_is_watching+0x30/0x70 [ 35.174526][ C1] kernel_text_address+0x30/0xe0 [ 35.174698][ C1] __kernel_text_address+0x12/0x40 [ 35.174865][ C1] unwind_get_return_address+0x5e/0xa0 [ 35.175039][ C1] arch_stack_walk+0xa2/0xf0 [ 35.175319][ C1] stack_trace_save+0x94/0xd0 [ 35.175485][ C1] kasan_save_stack+0x24/0x50 [ 35.175651][ C1] __kasan_record_aux_stack+0x8e/0xa0 [ 35.175821][ C1] __call_rcu_common.constprop.0+0x9e/0x830 [ 35.176032][ C1] kfree+0x142/0x230 [ 35.176161][ C1] p9_req_put+0x1c6/0x210 [ 35.176331][ C1] p9_client_read_once+0x2d9/0x860 [ 35.176497][ C1] p9_client_read+0xfd/0x160 [ 35.176663][ C1] v9fs_issue_read+0x104/0x1b0 [ 35.176956][ C1] netfs_rreq_submit_slice+0x3da/0x5f0 [ 35.177123][ C1] netfs_begin_read+0x450/0xb20 [ 35.177290][ C1] netfs_unbuffered_read_iter_locked+0x5c4/0x810 [ 35.177512][ C1] netfs_unbuffered_read_iter+0xaa/0xf0 [ 35.177800][ C1] do_iter_readv_writev+0x42f/0x620 [ 35.177967][ C1] vfs_iter_read+0x122/0x450 [ 35.178136][ C1] backing_file_read_iter+0x4bc/0x6a0 [ 35.178307][ C1] ovl_read_iter+0x1ff/0x270 [ 35.178583][ C1] __kernel_read+0x336/0x9e0 [ 35.178752][ C1] search_binary_handler+0xb8/0x550 [ 35.178918][ C1] exec_binprm+0x120/0x400 [ 35.179088][ C1] bprm_execve+0xe9/0x4f0 [ 35.179371][ C1] do_execveat_common.isra.0+0x4a6/0x6a0 [ 35.179580][ C1] __x64_sys_execve+0x8c/0xb0 [ 35.179746][ C1] do_syscall_64+0xc6/0x1e0 [ 35.179912][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 35.180122][ C1] [ 35.180206][ C1] [ 35.180206][ C1] stack backtrace: [ 35.180412][ C1] CPU: 1 PID: 314 Comm: ip Not tainted 6.9.0-rc1-virtme #1 [ 35.180677][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 35.181159][ C1] Call Trace: [ 35.181292][ C1] [ 35.181378][ C1] dump_stack_lvl+0x82/0xd0 [ 35.181567][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 35.181905][ C1] ? kernel_text_address+0xce/0xe0 [ 35.182098][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 35.182339][ C1] ? __pfx_usage_skip+0x10/0x10 [ 35.182630][ C1] ? __pfx_usage_match+0x10/0x10 [ 35.182795][ C1] ? arch_stack_walk+0xa2/0xf0 [ 35.182964][ C1] mark_lock_irq+0x4cd/0xa10 [ 35.183195][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 35.183450][ C1] ? __pfx_stack_trace_save+0x10/0x10 [ 35.183727][ C1] ? save_trace+0x8f/0x5b0 [ 35.183898][ C1] mark_lock+0x28d/0x3e0 [ 35.184027][ C1] ? __pfx_stack_trace_save+0x10/0x10 [ 35.184204][ C1] mark_usage+0xd9/0x2a0 [ 35.184446][ C1] __lock_acquire+0x797/0x1570 [ 35.184613][ C1] ? __pfx_validate_chain+0x10/0x10 [ 35.184779][ C1] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 35.184947][ C1] lock_acquire.part.0+0xeb/0x330 [ 35.185123][ C1] ? addrconf_rs_timer+0xa9/0x730 [ 35.185401][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 35.185571][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 35.185741][ C1] ? addrconf_rs_timer+0xa9/0x730 [ 35.185905][ C1] ? lock_acquire+0x32/0xc0 [ 35.186189][ C1] ? addrconf_rs_timer+0xa9/0x730 [ 35.186360][ C1] _raw_write_lock+0x30/0x40 [ 35.186526][ C1] ? addrconf_rs_timer+0xa9/0x730 [ 35.186690][ C1] addrconf_rs_timer+0xa9/0x730 [ 35.186989][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 35.187164][ C1] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 35.187339][ C1] ? call_timer_fn+0xe8/0x230 [ 35.187517][ C1] ? lock_acquire+0x32/0xc0 [ 35.187816][ C1] ? call_timer_fn+0xe8/0x230 [ 35.188000][ C1] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 35.188194][ C1] call_timer_fn+0x13b/0x230 [ 35.188382][ C1] ? call_timer_fn+0xe8/0x230 [ 35.188553][ C1] ? call_timer_fn+0xe8/0x230 [ 35.188836][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 35.189017][ C1] ? hlock_class+0x4e/0x130 [ 35.189207][ C1] ? mark_held_locks+0x9e/0xe0 [ 35.189385][ C1] __run_timers+0x545/0x810 [ 35.189665][ C1] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 35.189850][ C1] ? __pfx___run_timers+0x10/0x10 [ 35.190027][ C1] ? do_raw_spin_lock+0x131/0x270 [ 35.190207][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 35.190509][ C1] ? lock_acquire+0x32/0xc0 [ 35.190692][ C1] ? run_timer_softirq+0xe0/0x1b0 [ 35.190879][ C1] run_timer_softirq+0xe8/0x1b0 [ 35.191072][ C1] __do_softirq+0x1f8/0x5df [ 35.191371][ C1] irq_exit_rcu+0x97/0xc0 [ 35.191497][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 35.191675][ C1] [ 35.191763][ C1] [ 35.191847][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 35.192083][ C1] RIP: 0010:rcu_is_watching+0x30/0x70 [ 35.192282][ C1] Code: ff 05 fc 74 8c 52 65 48 8b 1d 44 c5 8a 52 48 8d bb e0 84 03 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 26 8b 83 e0 84 03 [ 35.193013][ C1] RSP: 0018:ffffc90000fef110 EFLAGS: 00000a06 [ 35.193277][ C1] RAX: dffffc0000000000 RBX: ffff888036080000 RCX: 0000000000000000 [ 35.193525][ C1] RDX: 0000000000000000 RSI: 1ffffffff632df28 RDI: ffff8880360b84e0 [ 35.193888][ C1] RBP: 00007f23311cf40b R08: ffffc90000fef1a8 R09: fffff520001fde16 [ 35.194145][ C1] R10: ffffc90000fef168 R11: ffffc90000fef1a9 R12: ffffc90000fef230 [ 35.194409][ C1] R13: 0000000000000000 R14: ffff888006a5a300 R15: 0000000000000000 [ 35.194797][ C1] kernel_text_address+0x30/0xe0 [ 35.194985][ C1] __kernel_text_address+0x12/0x40 [ 35.195164][ C1] unwind_get_return_address+0x5e/0xa0 [ 35.195362][ C1] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 35.195702][ C1] arch_stack_walk+0xa2/0xf0 [ 35.195875][ C1] stack_trace_save+0x94/0xd0 [ 35.196059][ C1] ? __pfx_stack_trace_save+0x10/0x10 [ 35.196231][ C1] ? __pfx_validate_chain+0x10/0x10 [ 35.196506][ C1] ? hlock_class+0x4e/0x130 [ 35.196673][ C1] ? mark_lock+0x38/0x3e0 [ 35.196798][ C1] kasan_save_stack+0x24/0x50 [ 35.196986][ C1] ? kasan_save_stack+0x24/0x50 [ 35.197162][ C1] ? __kasan_record_aux_stack+0x8e/0xa0 [ 35.197448][ C1] ? __call_rcu_common.constprop.0+0x9e/0x830 [ 35.197654][ C1] ? kfree+0x142/0x230 [ 35.197780][ C1] ? p9_req_put+0x1c6/0x210 [ 35.197946][ C1] ? p9_client_read_once+0x2d9/0x860 [ 35.198121][ C1] ? p9_client_read+0xfd/0x160 [ 35.198291][ C1] ? v9fs_issue_read+0x104/0x1b0 [ 35.198457][ C1] ? netfs_rreq_submit_slice+0x3da/0x5f0 [ 35.198629][ C1] ? netfs_begin_read+0x450/0xb20 [ 35.198903][ C1] ? netfs_unbuffered_read_iter_locked+0x5c4/0x810 [ 35.199123][ C1] ? netfs_unbuffered_read_iter+0xaa/0xf0 [ 35.199288][ C1] ? do_iter_readv_writev+0x42f/0x620 [ 35.199458][ C1] ? vfs_iter_read+0x122/0x450 [ 35.199843][ C1] ? backing_file_read_iter+0x4bc/0x6a0 [ 35.200010][ C1] ? ovl_read_iter+0x1ff/0x270 [ 35.200187][ C1] ? __kernel_read+0x336/0x9e0 [ 35.200352][ C1] ? search_binary_handler+0xb8/0x550 [ 35.200518][ C1] ? exec_binprm+0x120/0x400 [ 35.200797][ C1] ? bprm_execve+0xe9/0x4f0 [ 35.200962][ C1] ? do_execveat_common.isra.0+0x4a6/0x6a0 [ 35.201176][ C1] ? __x64_sys_execve+0x8c/0xb0 [ 35.201359][ C1] ? do_syscall_64+0xc6/0x1e0 [ 35.201652][ C1] ? entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 35.201870][ C1] ? __lock_release+0x103/0x460 [ 35.202065][ C1] ? __virt_addr_valid+0x222/0x420 [ 35.202260][ C1] ? __pfx___lock_release+0x10/0x10 [ 35.202549][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 35.202735][ C1] ? __virt_addr_valid+0x222/0x420 [ 35.202901][ C1] ? __virt_addr_valid+0x227/0x420 [ 35.203091][ C1] ? __pfx_free_object_rcu+0x10/0x10 [ 35.203419][ C1] ? kasan_addr_to_slab+0x4e/0x90 [ 35.203601][ C1] __kasan_record_aux_stack+0x8e/0xa0 [ 35.203777][ C1] ? __pfx_free_object_rcu+0x10/0x10 [ 35.203942][ C1] __call_rcu_common.constprop.0+0x9e/0x830 [ 35.204221][ C1] kfree+0x142/0x230 [ 35.204379][ C1] ? p9_req_put+0x1c6/0x210 [ 35.204554][ C1] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 35.204774][ C1] p9_req_put+0x1c6/0x210 [ 35.205035][ C1] p9_client_read_once+0x2d9/0x860 [ 35.205231][ C1] ? __pfx_p9_client_read_once+0x10/0x10 [ 35.205400][ C1] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 35.205619][ C1] ? __debug_object_init+0x2f7/0x450 [ 35.205930][ C1] p9_client_read+0xfd/0x160 [ 35.206118][ C1] v9fs_issue_read+0x104/0x1b0 [ 35.206291][ C1] ? __pfx_v9fs_issue_read+0x10/0x10 [ 35.206467][ C1] ? netfs_rreq_prepare_read+0x3fa/0xa50 [ 35.206649][ C1] netfs_rreq_submit_slice+0x3da/0x5f0 [ 35.206940][ C1] netfs_begin_read+0x450/0xb20 [ 35.207135][ C1] ? __lock_release+0x103/0x460 [ 35.207327][ C1] ? __pfx_netfs_begin_read+0x10/0x10 [ 35.207503][ C1] ? __pfx___lock_release+0x10/0x10 [ 35.207791][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 35.207965][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 35.208150][ C1] ? netfs_alloc_request+0x634/0x850 [ 35.208328][ C1] ? do_raw_spin_unlock+0x58/0x220 [ 35.208629][ C1] ? _raw_spin_unlock+0x23/0x40 [ 35.208801][ C1] ? netfs_alloc_request+0x634/0x850 [ 35.208975][ C1] netfs_unbuffered_read_iter_locked+0x5c4/0x810 [ 35.209209][ C1] netfs_unbuffered_read_iter+0xaa/0xf0 [ 35.209497][ C1] do_iter_readv_writev+0x42f/0x620 [ 35.209675][ C1] ? find_held_lock+0x2c/0x110 [ 35.210294][ C1] ? __pfx_do_iter_readv_writev+0x10/0x10 [ 35.210475][ C1] vfs_iter_read+0x122/0x450 [ 35.210787][ C1] backing_file_read_iter+0x4bc/0x6a0 [ 35.210960][ C1] ovl_read_iter+0x1ff/0x270 [ 35.211148][ C1] ? __pfx_ovl_read_iter+0x10/0x10 [ 35.211313][ C1] ? __pfx_ovl_file_accessed+0x10/0x10 [ 35.211491][ C1] ? __pfx_validate_chain+0x10/0x10 [ 35.211792][ C1] __kernel_read+0x336/0x9e0 [ 35.211975][ C1] ? __pfx___kernel_read+0x10/0x10 [ 35.212203][ C1] ? __lock_acquire+0xaf0/0x1570 [ 35.212426][ C1] ? find_held_lock+0x2c/0x110 [ 35.212716][ C1] search_binary_handler+0xb8/0x550 [ 35.212888][ C1] ? __pfx_search_binary_handler+0x10/0x10 [ 35.213114][ C1] ? __task_pid_nr_ns+0x11f/0x410 [ 35.213304][ C1] ? exec_binprm+0x100/0x400 [ 35.213602][ C1] exec_binprm+0x120/0x400 [ 35.213775][ C1] bprm_execve+0xe9/0x4f0 [ 35.213913][ C1] do_execveat_common.isra.0+0x4a6/0x6a0 [ 35.214088][ C1] ? getname_flags+0xbd/0x3d0 [ 35.214480][ C1] __x64_sys_execve+0x8c/0xb0 [ 35.214647][ C1] do_syscall_64+0xc6/0x1e0 [ 35.214814][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 35.215023][ C1] RIP: 0033:0x7f23311cf40b [ 35.215322][ 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 [ 35.215909][ C1] RSP: 002b:00007ffc95c19638 EFLAGS: 00000206 ORIG_RAX: 000000000000003b [ 35.216172][ C1] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f23311cf40b [ 35.216420][ C1] RDX: 00007ffc95c19a10 RSI: 00007ffc95c199d8 RDI: 00007ffc95c1a8e6 [ 35.216675][ C1] RBP: 00007ffc95c196a0 R08: 0000000000090800 R09: 00007ffc95c16560 [ 35.217051][ C1] R10: 00007f23311a1700 R11: 0000000000000206 R12: 00007ffc95c199d8 [ 35.217300][ C1] R13: 00007ffc95c19a10 R14: 00007ffc95c1a8e6 R15: 0000000000000000 [ 35.217550][ C1] [ 44.830736][ T367] netem: version 1.3