[ 575.668159][ T7534] [ 575.668343][ T7534] ===================================================== [ 575.668634][ T7534] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 575.668982][ T7534] 6.9.0-rc1-virtme #1 Not tainted [ 575.669217][ T7534] ----------------------------------------------------- [ 575.669499][ T7534] ip/7534 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 575.669786][ T7534] ffff888001a5cee8 (&p->alloc_lock){+.+.}-{2:2}, at: __get_task_comm+0x27/0x70 [ 575.670217][ T7534] [ 575.670217][ T7534] and this task is already holding: [ 575.670555][ T7534] ffff8880361befd8 (&ul->lock){+.-.}-{2:2}, at: rt6_uncached_list_flush_dev+0x138/0x840 [ 575.670981][ T7534] which would create a new lock dependency: [ 575.671257][ T7534] (&ul->lock){+.-.}-{2:2} -> (&p->alloc_lock){+.+.}-{2:2} [ 575.671617][ T7534] [ 575.671617][ T7534] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 575.672016][ T7534] (&ul->lock){+.-.}-{2:2} [ 575.672024][ T7534] [ 575.672024][ T7534] ... which became SOFTIRQ-irq-safe at: [ 575.672610][ T7534] __lock_acquire+0x797/0x1570 [ 575.672847][ T7534] lock_acquire.part.0+0xeb/0x330 [ 575.673080][ T7534] _raw_spin_lock_bh+0x38/0x50 [ 575.673318][ T7534] rt6_uncached_list_del+0x77/0x200 [ 575.673548][ T7534] ip6_dst_destroy+0x74/0x1e0 [ 575.673782][ T7534] dst_destroy+0xba/0x310 [ 575.674019][ T7534] rcu_do_batch+0x3c0/0xfb0 [ 575.674262][ T7534] rcu_core+0x2be/0x500 [ 575.674436][ T7534] __do_softirq+0x1f8/0x5df [ 575.674670][ T7534] irq_exit_rcu+0x97/0xc0 [ 575.674903][ T7534] sysvec_apic_timer_interrupt+0x75/0x80 [ 575.675143][ T7534] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 575.675428][ T7534] default_idle+0xf/0x20 [ 575.675597][ T7534] default_idle_call+0x6d/0xb0 [ 575.675825][ T7534] cpuidle_idle_call+0x1f4/0x280 [ 575.676057][ T7534] do_idle+0xf9/0x160 [ 575.676240][ T7534] cpu_startup_entry+0x54/0x60 [ 575.676472][ T7534] rest_init+0x14f/0x260 [ 575.676647][ T7534] start_kernel+0x318/0x3d0 [ 575.676883][ T7534] x86_64_start_reservations+0x18/0x30 [ 575.677120][ T7534] x86_64_start_kernel+0xba/0x110 [ 575.677343][ T7534] common_startup_64+0x12c/0x138 [ 575.677580][ T7534] [ 575.677580][ T7534] to a SOFTIRQ-irq-unsafe lock: [ 575.677866][ T7534] (&p->alloc_lock){+.+.}-{2:2} [ 575.677874][ T7534] [ 575.677874][ T7534] ... which became SOFTIRQ-irq-unsafe at: [ 575.678433][ T7534] ... [ 575.678435][ T7534] __lock_acquire+0x797/0x1570 [ 575.678788][ T7534] lock_acquire.part.0+0xeb/0x330 [ 575.679031][ T7534] _raw_spin_lock+0x30/0x40 [ 575.679270][ T7534] set_mems_allowed+0x1d/0x210 [ 575.679509][ T7534] kernel_init_freeable+0x72/0x310 [ 575.679747][ T7534] kernel_init+0x20/0x200 [ 575.679986][ T7534] ret_from_fork+0x31/0x70 [ 575.680222][ T7534] ret_from_fork_asm+0x1a/0x30 [ 575.680454][ T7534] [ 575.680454][ T7534] other info that might help us debug this: [ 575.680454][ T7534] [ 575.680901][ T7534] Possible interrupt unsafe locking scenario: [ 575.680901][ T7534] [ 575.681236][ T7534] CPU0 CPU1 [ 575.681469][ T7534] ---- ---- [ 575.681707][ T7534] lock(&p->alloc_lock); [ 575.681891][ T7534] local_irq_disable(); [ 575.682183][ T7534] lock(&ul->lock); [ 575.682476][ T7534] lock(&p->alloc_lock); [ 575.682762][ T7534] [ 575.682944][ T7534] lock(&ul->lock); [ 575.683128][ T7534] [ 575.683128][ T7534] *** DEADLOCK *** [ 575.683128][ T7534] [ 575.683472][ T7534] 2 locks held by ip/7534: [ 575.683693][ T7534] #0: ffffffffb1992d08 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2af/0xbf0 [ 575.684121][ T7534] #1: ffff8880361befd8 (&ul->lock){+.-.}-{2:2}, at: rt6_uncached_list_flush_dev+0x138/0x840 [ 575.684593][ T7534] [ 575.684593][ T7534] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 575.685042][ T7534] -> (&ul->lock){+.-.}-{2:2} { [ 575.685303][ T7534] HARDIRQ-ON-W at: [ 575.685475][ T7534] __lock_acquire+0x797/0x1570 [ 575.685781][ T7534] lock_acquire.part.0+0xeb/0x330 [ 575.686076][ T7534] _raw_spin_lock_bh+0x38/0x50 [ 575.686375][ T7534] rt6_uncached_list_add+0x55/0x1b0 [ 575.686665][ T7534] icmp6_dst_alloc+0x2c0/0x450 [ 575.686963][ T7534] ndisc_send_skb+0xf32/0x1610 [ 575.687277][ T7534] addrconf_dad_completed+0x397/0xe20 [ 575.687571][ T7534] addrconf_dad_begin+0x310/0x670 [ 575.687866][ T7534] addrconf_dad_work+0x10b/0xab0 [ 575.688158][ T7534] process_one_work+0xe2c/0x1730 [ 575.688451][ T7534] worker_thread+0x587/0xd30 [ 575.688753][ T7534] kthread+0x28a/0x350 [ 575.689004][ T7534] ret_from_fork+0x31/0x70 [ 575.689312][ T7534] ret_from_fork_asm+0x1a/0x30 [ 575.689614][ T7534] IN-SOFTIRQ-W at: [ 575.689793][ T7534] __lock_acquire+0x797/0x1570 [ 575.690091][ T7534] lock_acquire.part.0+0xeb/0x330 [ 575.690374][ T7534] _raw_spin_lock_bh+0x38/0x50 [ 575.690657][ T7534] rt6_uncached_list_del+0x77/0x200 [ 575.690963][ T7534] ip6_dst_destroy+0x74/0x1e0 [ 575.691253][ T7534] dst_destroy+0xba/0x310 [ 575.691545][ T7534] rcu_do_batch+0x3c0/0xfb0 [ 575.691840][ T7534] rcu_core+0x2be/0x500 [ 575.692137][ T7534] __do_softirq+0x1f8/0x5df [ 575.692432][ T7534] irq_exit_rcu+0x97/0xc0 [ 575.692724][ T7534] sysvec_apic_timer_interrupt+0x75/0x80 [ 575.693082][ T7534] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 575.693422][ T7534] default_idle+0xf/0x20 [ 575.693699][ T7534] default_idle_call+0x6d/0xb0 [ 575.693999][ T7534] cpuidle_idle_call+0x1f4/0x280 [ 575.694298][ T7534] do_idle+0xf9/0x160 [ 575.694533][ T7534] cpu_startup_entry+0x54/0x60 [ 575.694819][ T7534] rest_init+0x14f/0x260 [ 575.695104][ T7534] start_kernel+0x318/0x3d0 [ 575.695387][ T7534] x86_64_start_reservations+0x18/0x30 [ 575.695663][ T7534] x86_64_start_kernel+0xba/0x110 [ 575.695951][ T7534] common_startup_64+0x12c/0x138 [ 575.696230][ T7534] INITIAL USE at: [ 575.696402][ T7534] __lock_acquire+0x797/0x1570 [ 575.696693][ T7534] lock_acquire.part.0+0xeb/0x330 [ 575.696976][ T7534] _raw_spin_lock_bh+0x38/0x50 [ 575.697258][ T7534] rt6_uncached_list_add+0x55/0x1b0 [ 575.697542][ T7534] icmp6_dst_alloc+0x2c0/0x450 [ 575.697834][ T7534] ndisc_send_skb+0xf32/0x1610 [ 575.698117][ T7534] addrconf_dad_completed+0x397/0xe20 [ 575.698405][ T7534] addrconf_dad_begin+0x310/0x670 [ 575.698678][ T7534] addrconf_dad_work+0x10b/0xab0 [ 575.698974][ T7534] process_one_work+0xe2c/0x1730 [ 575.699274][ T7534] worker_thread+0x587/0xd30 [ 575.699575][ T7534] kthread+0x28a/0x350 [ 575.699801][ T7534] ret_from_fork+0x31/0x70 [ 575.700090][ T7534] ret_from_fork_asm+0x1a/0x30 [ 575.700372][ T7534] } [ 575.700487][ T7534] ... key at: [] __key.16+0x0/0x40 [ 575.700827][ T7534] [ 575.700827][ T7534] the dependencies between the lock to be acquired [ 575.700830][ T7534] and SOFTIRQ-irq-unsafe lock: [ 575.701424][ T7534] -> (&p->alloc_lock){+.+.}-{2:2} { [ 575.701655][ T7534] HARDIRQ-ON-W at: [ 575.701968][ T7534] __lock_acquire+0x797/0x1570 [ 575.702268][ T7534] lock_acquire.part.0+0xeb/0x330 [ 575.702549][ T7534] _raw_spin_lock+0x30/0x40 [ 575.702837][ T7534] set_mems_allowed+0x1d/0x210 [ 575.703306][ T7534] kernel_init_freeable+0x72/0x310 [ 575.703584][ T7534] kernel_init+0x20/0x200 [ 575.703861][ T7534] ret_from_fork+0x31/0x70 [ 575.704312][ T7534] ret_from_fork_asm+0x1a/0x30 [ 575.704591][ T7534] SOFTIRQ-ON-W at: [ 575.704766][ T7534] __lock_acquire+0x797/0x1570 [ 575.705047][ T7534] lock_acquire.part.0+0xeb/0x330 [ 575.705500][ T7534] _raw_spin_lock+0x30/0x40 [ 575.705794][ T7534] set_mems_allowed+0x1d/0x210 [ 575.706092][ T7534] kernel_init_freeable+0x72/0x310 [ 575.706565][ T7534] kernel_init+0x20/0x200 [ 575.706863][ T7534] ret_from_fork+0x31/0x70 [ 575.707164][ T7534] ret_from_fork_asm+0x1a/0x30 [ 575.707461][ T7534] INITIAL USE at: [ 575.707643][ T7534] __lock_acquire+0x797/0x1570 [ 575.707946][ T7534] lock_acquire.part.0+0xeb/0x330 [ 575.708231][ T7534] _raw_spin_lock+0x30/0x40 [ 575.708520][ T7534] set_mems_allowed+0x1d/0x210 [ 575.708818][ T7534] kernel_init_freeable+0x72/0x310 [ 575.709114][ T7534] kernel_init+0x20/0x200 [ 575.709400][ T7534] ret_from_fork+0x31/0x70 [ 575.709856][ T7534] ret_from_fork_asm+0x1a/0x30 [ 575.710152][ T7534] } [ 575.710274][ T7534] ... key at: [] __key.387+0x0/0x40 [ 575.710629][ T7534] ... acquired at: [ 575.710955][ T7534] check_prev_add+0x194/0xce0 [ 575.711185][ T7534] validate_chain+0x71d/0x9b0 [ 575.711421][ T7534] __lock_acquire+0xaf0/0x1570 [ 575.711649][ T7534] lock_acquire.part.0+0xeb/0x330 [ 575.712035][ T7534] _raw_spin_lock+0x30/0x40 [ 575.712281][ T7534] __get_task_comm+0x27/0x70 [ 575.712514][ T7534] ref_tracker_alloc+0x2ee/0x490 [ 575.712744][ T7534] rt6_uncached_list_flush_dev+0x494/0x840 [ 575.713081][ T7534] rt6_disable_ip+0xd9/0x140 [ 575.713226][ T7534] addrconf_ifdown.isra.0+0x103/0x1560 [ 575.713371][ T7534] addrconf_notify+0xd1/0xd60 [ 575.713518][ T7534] notifier_call_chain+0xcd/0x150 [ 575.713761][ T7534] __dev_notify_flags+0x170/0x250 [ 575.713906][ T7534] dev_change_flags+0xec/0x160 [ 575.714051][ T7534] do_setlink+0x7d6/0x21e0 [ 575.714200][ T7534] __rtnl_newlink+0xaa7/0xd80 [ 575.714347][ T7534] rtnl_newlink+0x63/0xa0 [ 575.714586][ T7534] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 575.714740][ T7534] netlink_rcv_skb+0x130/0x360 [ 575.714885][ T7534] netlink_unicast+0x449/0x710 [ 575.715028][ T7534] netlink_sendmsg+0x723/0xbe0 [ 575.715175][ T7534] ____sys_sendmsg+0x7b2/0xa10 [ 575.715319][ T7534] ___sys_sendmsg+0xee/0x170 [ 575.715462][ T7534] __sys_sendmsg+0xcd/0x170 [ 575.715611][ T7534] do_syscall_64+0xc6/0x1e0 [ 575.715856][ T7534] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 575.716037][ T7534] [ 575.716112][ T7534] [ 575.716112][ T7534] stack backtrace: [ 575.716298][ T7534] CPU: 1 PID: 7534 Comm: ip Not tainted 6.9.0-rc1-virtme #1 [ 575.716601][ T7534] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 575.716936][ T7534] Call Trace: [ 575.717049][ T7534] [ 575.717124][ T7534] dump_stack_lvl+0x82/0xd0 [ 575.717361][ T7534] print_bad_irq_dependency+0x957/0xd40 [ 575.717506][ T7534] ? hlock_class+0x4e/0x130 [ 575.717651][ T7534] ? __pfx_print_bad_irq_dependency+0x10/0x10 [ 575.717842][ T7534] ? __pfx_usage_skip+0x10/0x10 [ 575.718073][ T7534] ? __bfs+0x246/0x650 [ 575.718180][ T7534] ? __pfx_usage_match+0x10/0x10 [ 575.718324][ T7534] check_irq_usage+0x596/0x850 [ 575.718474][ T7534] ? __pfx_check_irq_usage+0x10/0x10 [ 575.718712][ T7534] ? __bfs+0x246/0x650 [ 575.718828][ T7534] ? __pfx_hlock_conflict+0x10/0x10 [ 575.718971][ T7534] ? check_path.constprop.0+0x24/0x50 [ 575.719111][ T7534] ? check_noncircular+0x14c/0x3e0 [ 575.719255][ T7534] ? __pfx_check_noncircular+0x10/0x10 [ 575.719491][ T7534] ? check_prev_add+0x194/0xce0 [ 575.719641][ T7534] check_prev_add+0x194/0xce0 [ 575.719847][ T7534] ? validate_chain+0x130/0x9b0 [ 575.720015][ T7534] validate_chain+0x71d/0x9b0 [ 575.720160][ T7534] ? mark_lock+0x38/0x3e0 [ 575.720270][ T7534] ? __pfx_validate_chain+0x10/0x10 [ 575.720415][ T7534] ? hlock_class+0x4e/0x130 [ 575.720558][ T7534] ? mark_lock+0x38/0x3e0 [ 575.720669][ T7534] __lock_acquire+0xaf0/0x1570 [ 575.720828][ T7534] lock_acquire.part.0+0xeb/0x330 [ 575.720978][ T7534] ? __get_task_comm+0x27/0x70 [ 575.721122][ T7534] ? mark_lock+0x38/0x3e0 [ 575.721231][ T7534] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 575.721470][ T7534] ? trace_lock_acquire+0x135/0x1c0 [ 575.721614][ T7534] ? __get_task_comm+0x27/0x70 [ 575.721768][ T7534] ? lock_acquire+0x32/0xc0 [ 575.721916][ T7534] ? __get_task_comm+0x27/0x70 [ 575.722061][ T7534] _raw_spin_lock+0x30/0x40 [ 575.722222][ T7534] ? __get_task_comm+0x27/0x70 [ 575.722369][ T7534] __get_task_comm+0x27/0x70 [ 575.722514][ T7534] ref_tracker_alloc+0x2ee/0x490 [ 575.722662][ T7534] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 575.722823][ T7534] ? __lock_release+0x103/0x460 [ 575.722967][ T7534] ? rt6_uncached_list_flush_dev+0x494/0x840 [ 575.723144][ T7534] ? rt6_disable_ip+0xd9/0x140 [ 575.723288][ T7534] ? addrconf_ifdown.isra.0+0x103/0x1560 [ 575.723526][ T7534] ? addrconf_notify+0xd1/0xd60 [ 575.723674][ T7534] ? notifier_call_chain+0xcd/0x150 [ 575.723828][ T7534] ? __dev_notify_flags+0x170/0x250 [ 575.723970][ T7534] ? dev_change_flags+0xec/0x160 [ 575.724112][ T7534] ? do_setlink+0x7d6/0x21e0 [ 575.724254][ T7534] ? __rtnl_newlink+0xaa7/0xd80 [ 575.724396][ T7534] ? rtnl_newlink+0x63/0xa0 [ 575.724540][ T7534] ? rtnetlink_rcv_msg+0x2fb/0xbf0 [ 575.724681][ T7534] ? netlink_rcv_skb+0x130/0x360 [ 575.724835][ T7534] ? netlink_unicast+0x449/0x710 [ 575.724983][ T7534] ? netlink_sendmsg+0x723/0xbe0 [ 575.725125][ T7534] ? ____sys_sendmsg+0x7b2/0xa10 [ 575.725362][ T7534] ? ___sys_sendmsg+0xee/0x170 [ 575.725505][ T7534] ? in6_dev_get+0xcc/0x210 [ 575.725654][ T7534] rt6_uncached_list_flush_dev+0x494/0x840 [ 575.725845][ T7534] rt6_disable_ip+0xd9/0x140 [ 575.726163][ T7534] ? __pfx_rt6_disable_ip+0x10/0x10 [ 575.726305][ T7534] ? hlock_class+0x4e/0x130 [ 575.726454][ T7534] addrconf_ifdown.isra.0+0x103/0x1560 [ 575.726601][ T7534] ? __try_to_del_timer_sync+0xe7/0x140 [ 575.726763][ T7534] ? __pfx_addrconf_ifdown.isra.0+0x10/0x10 [ 575.727032][ T7534] addrconf_notify+0xd1/0xd60 [ 575.727174][ T7534] ? fib_netdev_event+0x186/0x5a0 [ 575.727317][ T7534] notifier_call_chain+0xcd/0x150 [ 575.727461][ T7534] __dev_notify_flags+0x170/0x250 [ 575.727699][ T7534] ? __pfx___dev_notify_flags+0x10/0x10 [ 575.727940][ T7534] ? __dev_change_flags+0x24f/0x6c0 [ 575.728171][ T7534] ? __pfx___dev_change_flags+0x10/0x10 [ 575.728408][ T7534] dev_change_flags+0xec/0x160 [ 575.728804][ T7534] do_setlink+0x7d6/0x21e0 [ 575.729042][ T7534] ? is_bpf_text_address+0x6c/0x120 [ 575.729281][ T7534] ? __pfx_do_setlink+0x10/0x10 [ 575.729429][ T7534] ? is_bpf_text_address+0x71/0x120 [ 575.729659][ T7534] ? kernel_text_address+0xce/0xe0 [ 575.729821][ T7534] ? __kernel_text_address+0x12/0x40 [ 575.729965][ T7534] ? unwind_get_return_address+0x5e/0xa0 [ 575.730109][ T7534] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 575.730375][ T7534] ? arch_stack_walk+0xa2/0xf0 [ 575.730523][ T7534] ? stack_trace_save+0x94/0xd0 [ 575.730665][ T7534] ? __pfx_stack_trace_save+0x10/0x10 [ 575.730824][ T7534] ? stack_depot_save_flags+0x45/0x530 [ 575.731053][ T7534] ? mark_lock+0x38/0x3e0 [ 575.731168][ T7534] ? kasan_save_stack+0x34/0x50 [ 575.731313][ T7534] ? kasan_save_stack+0x24/0x50 [ 575.731457][ T7534] ? kasan_save_track+0x14/0x30 [ 575.731599][ T7534] ? __kasan_kmalloc+0x7f/0x90 [ 575.731840][ T7534] ? rtnl_newlink+0x4a/0xa0 [ 575.731984][ T7534] ? rtnetlink_rcv_msg+0x2fb/0xbf0 [ 575.732141][ T7534] ? netlink_rcv_skb+0x130/0x360 [ 575.732287][ T7534] ? __nla_validate_parse+0x30/0x3d0 [ 575.732534][ T7534] ? netlink_sendmsg+0x723/0xbe0 [ 575.732677][ T7534] ? ____sys_sendmsg+0x7b2/0xa10 [ 575.732836][ T7534] ? ___sys_sendmsg+0xee/0x170 [ 575.732980][ T7534] __rtnl_newlink+0xaa7/0xd80 [ 575.733127][ T7534] ? hlock_class+0x4e/0x130 [ 575.733270][ T7534] ? __pfx___rtnl_newlink+0x10/0x10 [ 575.733414][ T7534] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 575.733591][ T7534] ? __create_object+0x5e/0xb0 [ 575.733746][ T7534] ? trace_kmalloc+0x2a/0xe0 [ 575.733897][ T7534] rtnl_newlink+0x63/0xa0 [ 575.734006][ T7534] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 575.734161][ T7534] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 575.734304][ T7534] ? hlock_class+0x4e/0x130 [ 575.734545][ T7534] ? mark_lock+0x38/0x3e0 [ 575.734655][ T7534] ? __lock_acquire+0xaf0/0x1570 [ 575.734819][ T7534] netlink_rcv_skb+0x130/0x360 [ 575.734964][ T7534] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 575.735113][ T7534] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 575.735256][ T7534] ? lock_acquire.part.0+0xeb/0x330 [ 575.735403][ T7534] ? netlink_deliver_tap+0xc8/0x340 [ 575.735545][ T7534] ? lock_acquire+0x32/0xc0 [ 575.735698][ T7534] ? netlink_deliver_tap+0xc8/0x340 [ 575.735931][ T7534] ? netlink_deliver_tap+0xc8/0x340 [ 575.736083][ T7534] ? netlink_deliver_tap+0x149/0x340 [ 575.736227][ T7534] netlink_unicast+0x449/0x710 [ 575.736378][ T7534] ? __pfx_netlink_unicast+0x10/0x10 [ 575.736610][ T7534] ? find_held_lock+0x2c/0x110 [ 575.736765][ T7534] netlink_sendmsg+0x723/0xbe0 [ 575.736908][ T7534] ? __pfx_netlink_sendmsg+0x10/0x10 [ 575.737051][ T7534] ? __might_fault+0xc3/0x170 [ 575.737286][ T7534] ? __import_iovec+0x35d/0x5d0 [ 575.737430][ T7534] ____sys_sendmsg+0x7b2/0xa10 [ 575.737581][ T7534] ? __pfx_____sys_sendmsg+0x10/0x10 [ 575.737741][ T7534] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 575.738094][ T7534] ? __pfx_validate_chain+0x10/0x10 [ 575.738240][ T7534] ___sys_sendmsg+0xee/0x170 [ 575.738383][ T7534] ? __pfx____sys_sendmsg+0x10/0x10 [ 575.738526][ T7534] ? find_held_lock+0x2c/0x110 [ 575.738774][ T7534] ? __lock_release+0x103/0x460 [ 575.738923][ T7534] ? __debug_check_no_obj_freed+0x253/0x520 [ 575.739103][ T7534] ? __pfx___lock_release+0x10/0x10 [ 575.739256][ T7534] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 575.739488][ T7534] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 575.739670][ T7534] ? __fget_light+0x53/0x1e0 [ 575.739825][ T7534] __sys_sendmsg+0xcd/0x170 [ 575.739970][ T7534] ? __pfx___sys_sendmsg+0x10/0x10 [ 575.740211][ T7534] do_syscall_64+0xc6/0x1e0 [ 575.740357][ T7534] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 575.740543][ T7534] RIP: 0033:0x7fccd24137b7 [ 575.740716][ T7534] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 [ 575.741316][ T7534] RSP: 002b:00007fff0c0f4f38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 575.741532][ T7534] RAX: ffffffffffffffda RBX: 00007fff0c0f5660 RCX: 00007fccd24137b7 [ 575.741852][ T7534] RDX: 0000000000000000 RSI: 00007fff0c0f4fa0 RDI: 0000000000000005 [ 575.742067][ T7534] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 575.742396][ T7534] R10: 00007fccd22d1ef8 R11: 0000000000000246 R12: 0000000000000003 [ 575.742611][ T7534] R13: 00000000660e21a4 R14: 0000000000495540 R15: 0000000000000000 [ 575.742845][ T7534]