[ 362.527284][ T1334] ip (1334) used greatest stack depth: 23536 bytes left [ 377.012224][ T1444] [ 377.012351][ T1444] ===================================================== [ 377.012564][ T1444] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 377.012820][ T1444] 6.9.0-rc1-virtme #1 Not tainted [ 377.012986][ T1444] ----------------------------------------------------- [ 377.013192][ T1444] ip/1444 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 377.013411][ T1444] ffff888005248968 (&p->alloc_lock){+.+.}-{2:2}, at: __get_task_comm+0x27/0x70 [ 377.013738][ T1444] [ 377.013738][ T1444] and this task is already holding: [ 377.013983][ T1444] ffff8880361befd8 (&ul->lock){+.-.}-{2:2}, at: rt6_uncached_list_flush_dev+0x138/0x840 [ 377.014310][ T1444] which would create a new lock dependency: [ 377.014526][ T1444] (&ul->lock){+.-.}-{2:2} -> (&p->alloc_lock){+.+.}-{2:2} [ 377.014778][ T1444] [ 377.014778][ T1444] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 377.015065][ T1444] (&ul->lock){+.-.}-{2:2} [ 377.015069][ T1444] [ 377.015069][ T1444] ... which became SOFTIRQ-irq-safe at: [ 377.015476][ T1444] __lock_acquire+0x797/0x1570 [ 377.015665][ T1444] lock_acquire.part.0+0xeb/0x330 [ 377.015831][ T1444] _raw_spin_lock_bh+0x38/0x50 [ 377.016010][ T1444] rt6_uncached_list_del+0x77/0x200 [ 377.016173][ T1444] ip6_dst_destroy+0x74/0x1e0 [ 377.016344][ T1444] dst_destroy+0xba/0x310 [ 377.016517][ T1444] rcu_do_batch+0x3c0/0xfb0 [ 377.016685][ T1444] rcu_core+0x2be/0x500 [ 377.016814][ T1444] __do_softirq+0x1f8/0x5df [ 377.016982][ T1444] irq_exit_rcu+0x97/0xc0 [ 377.017149][ T1444] sysvec_apic_timer_interrupt+0x75/0x80 [ 377.017319][ T1444] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 377.017524][ T1444] default_idle+0xf/0x20 [ 377.017652][ T1444] default_idle_call+0x6d/0xb0 [ 377.017812][ T1444] cpuidle_idle_call+0x1f4/0x280 [ 377.017977][ T1444] do_idle+0xf9/0x160 [ 377.018096][ T1444] cpu_startup_entry+0x54/0x60 [ 377.018262][ T1444] start_secondary+0x21c/0x2b0 [ 377.018426][ T1444] common_startup_64+0x12c/0x138 [ 377.018596][ T1444] [ 377.018596][ T1444] to a SOFTIRQ-irq-unsafe lock: [ 377.018800][ T1444] (&p->alloc_lock){+.+.}-{2:2} [ 377.018805][ T1444] [ 377.018805][ T1444] ... which became SOFTIRQ-irq-unsafe at: [ 377.019205][ T1444] ... [ 377.019207][ T1444] __lock_acquire+0x797/0x1570 [ 377.019458][ T1444] lock_acquire.part.0+0xeb/0x330 [ 377.019624][ T1444] _raw_spin_lock+0x30/0x40 [ 377.019786][ T1444] set_mems_allowed+0x1d/0x210 [ 377.019953][ T1444] kernel_init_freeable+0x72/0x310 [ 377.020126][ T1444] kernel_init+0x20/0x200 [ 377.020296][ T1444] ret_from_fork+0x31/0x70 [ 377.020467][ T1444] ret_from_fork_asm+0x1a/0x30 [ 377.020630][ T1444] [ 377.020630][ T1444] other info that might help us debug this: [ 377.020630][ T1444] [ 377.020972][ T1444] Possible interrupt unsafe locking scenario: [ 377.020972][ T1444] [ 377.021213][ T1444] CPU0 CPU1 [ 377.021381][ T1444] ---- ---- [ 377.021546][ T1444] lock(&p->alloc_lock); [ 377.021678][ T1444] local_irq_disable(); [ 377.021881][ T1444] lock(&ul->lock); [ 377.022089][ T1444] lock(&p->alloc_lock); [ 377.022300][ T1444] [ 377.022431][ T1444] lock(&ul->lock); [ 377.022561][ T1444] [ 377.022561][ T1444] *** DEADLOCK *** [ 377.022561][ T1444] [ 377.022801][ T1444] 2 locks held by ip/1444: [ 377.022972][ T1444] #0: ffffffffae992d08 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2af/0xbf0 [ 377.023271][ T1444] #1: ffff8880361befd8 (&ul->lock){+.-.}-{2:2}, at: rt6_uncached_list_flush_dev+0x138/0x840 [ 377.023599][ T1444] [ 377.023599][ T1444] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 377.023924][ T1444] -> (&ul->lock){+.-.}-{2:2} { [ 377.024113][ T1444] HARDIRQ-ON-W at: [ 377.024253][ T1444] __lock_acquire+0x797/0x1570 [ 377.024486][ T1444] lock_acquire.part.0+0xeb/0x330 [ 377.024711][ T1444] _raw_spin_lock_bh+0x38/0x50 [ 377.024931][ T1444] rt6_uncached_list_add+0x55/0x1b0 [ 377.025151][ T1444] icmp6_dst_alloc+0x2c0/0x450 [ 377.025378][ T1444] ndisc_send_skb+0xf32/0x1610 [ 377.025601][ T1444] addrconf_dad_completed+0x397/0xe20 [ 377.025828][ T1444] addrconf_dad_begin+0x310/0x670 [ 377.026044][ T1444] addrconf_dad_work+0x10b/0xab0 [ 377.026266][ T1444] process_one_work+0xe2c/0x1730 [ 377.026492][ T1444] worker_thread+0x587/0xd30 [ 377.026711][ T1444] kthread+0x28a/0x350 [ 377.026888][ T1444] ret_from_fork+0x31/0x70 [ 377.027111][ T1444] ret_from_fork_asm+0x1a/0x30 [ 377.027330][ T1444] IN-SOFTIRQ-W at: [ 377.027455][ T1444] __lock_acquire+0x797/0x1570 [ 377.027668][ T1444] lock_acquire.part.0+0xeb/0x330 [ 377.027870][ T1444] _raw_spin_lock_bh+0x38/0x50 [ 377.028073][ T1444] rt6_uncached_list_del+0x77/0x200 [ 377.028288][ T1444] ip6_dst_destroy+0x74/0x1e0 [ 377.028494][ T1444] dst_destroy+0xba/0x310 [ 377.028703][ T1444] rcu_do_batch+0x3c0/0xfb0 [ 377.028909][ T1444] rcu_core+0x2be/0x500 [ 377.029115][ T1444] __do_softirq+0x1f8/0x5df [ 377.029320][ T1444] irq_exit_rcu+0x97/0xc0 [ 377.029528][ T1444] sysvec_apic_timer_interrupt+0x75/0x80 [ 377.029779][ T1444] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 377.030037][ T1444] default_idle+0xf/0x20 [ 377.030243][ T1444] default_idle_call+0x6d/0xb0 [ 377.030452][ T1444] cpuidle_idle_call+0x1f4/0x280 [ 377.030658][ T1444] do_idle+0xf9/0x160 [ 377.030838][ T1444] cpu_startup_entry+0x54/0x60 [ 377.031042][ T1444] start_secondary+0x21c/0x2b0 [ 377.031257][ T1444] common_startup_64+0x12c/0x138 [ 377.031457][ T1444] INITIAL USE at: [ 377.031586][ T1444] __lock_acquire+0x797/0x1570 [ 377.031802][ T1444] lock_acquire.part.0+0xeb/0x330 [ 377.032006][ T1444] _raw_spin_lock_bh+0x38/0x50 [ 377.032207][ T1444] rt6_uncached_list_add+0x55/0x1b0 [ 377.032418][ T1444] icmp6_dst_alloc+0x2c0/0x450 [ 377.032639][ T1444] ndisc_send_skb+0xf32/0x1610 [ 377.032848][ T1444] addrconf_dad_completed+0x397/0xe20 [ 377.033052][ T1444] addrconf_dad_begin+0x310/0x670 [ 377.033261][ T1444] addrconf_dad_work+0x10b/0xab0 [ 377.033467][ T1444] process_one_work+0xe2c/0x1730 [ 377.033682][ T1444] worker_thread+0x587/0xd30 [ 377.033890][ T1444] kthread+0x28a/0x350 [ 377.034058][ T1444] ret_from_fork+0x31/0x70 [ 377.034264][ T1444] ret_from_fork_asm+0x1a/0x30 [ 377.034475][ T1444] } [ 377.034562][ T1444] ... key at: [] __key.16+0x0/0x40 [ 377.034820][ T1444] [ 377.034820][ T1444] the dependencies between the lock to be acquired [ 377.034822][ T1444] and SOFTIRQ-irq-unsafe lock: [ 377.035265][ T1444] -> (&p->alloc_lock){+.+.}-{2:2} { [ 377.035438][ T1444] HARDIRQ-ON-W at: [ 377.035566][ T1444] __lock_acquire+0x797/0x1570 [ 377.035771][ T1444] lock_acquire.part.0+0xeb/0x330 [ 377.035977][ T1444] _raw_spin_lock+0x30/0x40 [ 377.036182][ T1444] set_mems_allowed+0x1d/0x210 [ 377.036385][ T1444] kernel_init_freeable+0x72/0x310 [ 377.036594][ T1444] kernel_init+0x20/0x200 [ 377.036798][ T1444] ret_from_fork+0x31/0x70 [ 377.037000][ T1444] ret_from_fork_asm+0x1a/0x30 [ 377.037201][ T1444] SOFTIRQ-ON-W at: [ 377.037325][ T1444] __lock_acquire+0x797/0x1570 [ 377.037533][ T1444] lock_acquire.part.0+0xeb/0x330 [ 377.037739][ T1444] _raw_spin_lock+0x30/0x40 [ 377.037942][ T1444] set_mems_allowed+0x1d/0x210 [ 377.038147][ T1444] kernel_init_freeable+0x72/0x310 [ 377.038352][ T1444] kernel_init+0x20/0x200 [ 377.038556][ T1444] ret_from_fork+0x31/0x70 [ 377.038760][ T1444] ret_from_fork_asm+0x1a/0x30 [ 377.038965][ T1444] INITIAL USE at: [ 377.039091][ T1444] __lock_acquire+0x797/0x1570 [ 377.039293][ T1444] lock_acquire.part.0+0xeb/0x330 [ 377.039497][ T1444] _raw_spin_lock+0x30/0x40 [ 377.039797][ T1444] set_mems_allowed+0x1d/0x210 [ 377.039998][ T1444] kernel_init_freeable+0x72/0x310 [ 377.040203][ T1444] kernel_init+0x20/0x200 [ 377.040493][ T1444] ret_from_fork+0x31/0x70 [ 377.040702][ T1444] ret_from_fork_asm+0x1a/0x30 [ 377.040915][ T1444] } [ 377.041004][ T1444] ... key at: [] __key.387+0x0/0x40 [ 377.041430][ T1444] ... acquired at: [ 377.041552][ T1444] check_prev_add+0x194/0xce0 [ 377.041718][ T1444] validate_chain+0x71d/0x9b0 [ 377.041880][ T1444] __lock_acquire+0xaf0/0x1570 [ 377.042040][ T1444] lock_acquire.part.0+0xeb/0x330 [ 377.042204][ T1444] _raw_spin_lock+0x30/0x40 [ 377.042367][ T1444] __get_task_comm+0x27/0x70 [ 377.042530][ T1444] ref_tracker_alloc+0x2ee/0x490 [ 377.042713][ T1444] rt6_uncached_list_flush_dev+0x494/0x840 [ 377.043007][ T1444] rt6_disable_ip+0xd9/0x140 [ 377.043169][ T1444] addrconf_ifdown.isra.0+0x103/0x1560 [ 377.043332][ T1444] addrconf_notify+0xd1/0xd60 [ 377.043501][ T1444] notifier_call_chain+0xcd/0x150 [ 377.043768][ T1444] __dev_notify_flags+0x170/0x250 [ 377.043934][ T1444] dev_change_flags+0xec/0x160 [ 377.044096][ T1444] do_setlink+0x7d6/0x21e0 [ 377.044262][ T1444] __rtnl_newlink+0xaa7/0xd80 [ 377.044518][ T1444] rtnl_newlink+0x63/0xa0 [ 377.044683][ T1444] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 377.044851][ T1444] netlink_rcv_skb+0x130/0x360 [ 377.045025][ T1444] netlink_unicast+0x449/0x710 [ 377.045279][ T1444] netlink_sendmsg+0x723/0xbe0 [ 377.045449][ T1444] ____sys_sendmsg+0x7b2/0xa10 [ 377.045630][ T1444] ___sys_sendmsg+0xee/0x170 [ 377.045795][ T1444] __sys_sendmsg+0xcd/0x170 [ 377.045962][ T1444] do_syscall_64+0xc6/0x1e0 [ 377.046212][ T1444] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 377.046415][ T1444] [ 377.046500][ T1444] [ 377.046500][ T1444] stack backtrace: [ 377.046710][ T1444] CPU: 3 PID: 1444 Comm: ip Not tainted 6.9.0-rc1-virtme #1 [ 377.047053][ T1444] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 377.047416][ T1444] Call Trace: [ 377.047551][ T1444] [ 377.047723][ T1444] dump_stack_lvl+0x82/0xd0 [ 377.047901][ T1444] print_bad_irq_dependency+0x957/0xd40 [ 377.048066][ T1444] ? hlock_class+0x4e/0x130 [ 377.048230][ T1444] ? __pfx_print_bad_irq_dependency+0x10/0x10 [ 377.048520][ T1444] ? __pfx_usage_skip+0x10/0x10 [ 377.048687][ T1444] ? __bfs+0x246/0x650 [ 377.048810][ T1444] ? __pfx_usage_match+0x10/0x10 [ 377.048980][ T1444] check_irq_usage+0x596/0x850 [ 377.049143][ T1444] ? __pfx_check_irq_usage+0x10/0x10 [ 377.049392][ T1444] ? __bfs+0x246/0x650 [ 377.049519][ T1444] ? __pfx_hlock_conflict+0x10/0x10 [ 377.049683][ T1444] ? check_path.constprop.0+0x24/0x50 [ 377.049847][ T1444] ? check_noncircular+0x14c/0x3e0 [ 377.050103][ T1444] ? __pfx_check_noncircular+0x10/0x10 [ 377.050270][ T1444] ? check_prev_add+0x194/0xce0 [ 377.050434][ T1444] check_prev_add+0x194/0xce0 [ 377.050603][ T1444] ? validate_chain+0x130/0x9b0 [ 377.050862][ T1444] validate_chain+0x71d/0x9b0 [ 377.051033][ T1444] ? mark_lock+0x38/0x3e0 [ 377.051158][ T1444] ? __pfx_validate_chain+0x10/0x10 [ 377.051319][ T1444] ? hlock_class+0x4e/0x130 [ 377.051489][ T1444] ? mark_lock+0x38/0x3e0 [ 377.051707][ T1444] __lock_acquire+0xaf0/0x1570 [ 377.051872][ T1444] lock_acquire.part.0+0xeb/0x330 [ 377.052038][ T1444] ? __get_task_comm+0x27/0x70 [ 377.052203][ T1444] ? mark_lock+0x38/0x3e0 [ 377.052324][ T1444] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 377.052583][ T1444] ? trace_lock_acquire+0x135/0x1c0 [ 377.052751][ T1444] ? __get_task_comm+0x27/0x70 [ 377.052918][ T1444] ? lock_acquire+0x32/0xc0 [ 377.053084][ T1444] ? __get_task_comm+0x27/0x70 [ 377.053247][ T1444] _raw_spin_lock+0x30/0x40 [ 377.053410][ T1444] ? __get_task_comm+0x27/0x70 [ 377.053581][ T1444] __get_task_comm+0x27/0x70 [ 377.053749][ T1444] ref_tracker_alloc+0x2ee/0x490 [ 377.054098][ T1444] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 377.054261][ T1444] ? __lock_release+0x103/0x460 [ 377.054419][ T1444] ? rt6_uncached_list_flush_dev+0x494/0x840 [ 377.054628][ T1444] ? rt6_disable_ip+0xd9/0x140 [ 377.054880][ T1444] ? addrconf_ifdown.isra.0+0x103/0x1560 [ 377.055041][ T1444] ? addrconf_notify+0xd1/0xd60 [ 377.055203][ T1444] ? notifier_call_chain+0xcd/0x150 [ 377.055361][ T1444] ? __dev_notify_flags+0x170/0x250 [ 377.055609][ T1444] ? dev_change_flags+0xec/0x160 [ 377.055775][ T1444] ? do_setlink+0x7d6/0x21e0 [ 377.055941][ T1444] ? __rtnl_newlink+0xaa7/0xd80 [ 377.056105][ T1444] ? rtnl_newlink+0x63/0xa0 [ 377.056276][ T1444] ? rtnetlink_rcv_msg+0x2fb/0xbf0 [ 377.056536][ T1444] ? netlink_rcv_skb+0x130/0x360 [ 377.056702][ T1444] ? netlink_unicast+0x449/0x710 [ 377.056865][ T1444] ? netlink_sendmsg+0x723/0xbe0 [ 377.057025][ T1444] ? ____sys_sendmsg+0x7b2/0xa10 [ 377.057191][ T1444] ? ___sys_sendmsg+0xee/0x170 [ 377.057353][ T1444] ? in6_dev_get+0xcc/0x210 [ 377.057516][ T1444] rt6_uncached_list_flush_dev+0x494/0x840 [ 377.057725][ T1444] rt6_disable_ip+0xd9/0x140 [ 377.057977][ T1444] ? __pfx_rt6_disable_ip+0x10/0x10 [ 377.058137][ T1444] ? hlock_class+0x4e/0x130 [ 377.058301][ T1444] addrconf_ifdown.isra.0+0x103/0x1560 [ 377.058465][ T1444] ? __try_to_del_timer_sync+0xe7/0x140 [ 377.058719][ T1444] ? __pfx_addrconf_ifdown.isra.0+0x10/0x10 [ 377.058966][ T1444] addrconf_notify+0xd1/0xd60 [ 377.059134][ T1444] ? fib_netdev_event+0x186/0x5a0 [ 377.059339][ T1444] notifier_call_chain+0xcd/0x150 [ 377.059595][ T1444] __dev_notify_flags+0x170/0x250 [ 377.059762][ T1444] ? __pfx___dev_notify_flags+0x10/0x10 [ 377.059924][ T1444] ? __dev_change_flags+0x24f/0x6c0 [ 377.060084][ T1444] ? __pfx___dev_change_flags+0x10/0x10 [ 377.060341][ T1444] dev_change_flags+0xec/0x160 [ 377.060507][ T1444] do_setlink+0x7d6/0x21e0 [ 377.060671][ T1444] ? is_bpf_text_address+0x6c/0x120 [ 377.060859][ T1444] ? __pfx_do_setlink+0x10/0x10 [ 377.061024][ T1444] ? is_bpf_text_address+0x71/0x120 [ 377.061276][ T1444] ? kernel_text_address+0xce/0xe0 [ 377.061436][ T1444] ? __kernel_text_address+0x12/0x40 [ 377.061597][ T1444] ? unwind_get_return_address+0x5e/0xa0 [ 377.061759][ T1444] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 377.062050][ T1444] ? arch_stack_walk+0xa2/0xf0 [ 377.062214][ T1444] ? stack_trace_save+0x94/0xd0 [ 377.062383][ T1444] ? __pfx_stack_trace_save+0x10/0x10 [ 377.062543][ T1444] ? stack_depot_save_flags+0x45/0x530 [ 377.062796][ T1444] ? mark_lock+0x38/0x3e0 [ 377.062917][ T1444] ? kasan_save_stack+0x34/0x50 [ 377.063090][ T1444] ? kasan_save_stack+0x24/0x50 [ 377.063255][ T1444] ? kasan_save_track+0x14/0x30 [ 377.063505][ T1444] ? __kasan_kmalloc+0x7f/0x90 [ 377.063666][ T1444] ? rtnl_newlink+0x4a/0xa0 [ 377.063829][ T1444] ? rtnetlink_rcv_msg+0x2fb/0xbf0 [ 377.063991][ T1444] ? netlink_rcv_skb+0x130/0x360 [ 377.064155][ T1444] ? __nla_validate_parse+0x30/0x3d0 [ 377.064402][ T1444] ? netlink_sendmsg+0x723/0xbe0 [ 377.064565][ T1444] ? ____sys_sendmsg+0x7b2/0xa10 [ 377.064727][ T1444] ? ___sys_sendmsg+0xee/0x170 [ 377.064894][ T1444] __rtnl_newlink+0xaa7/0xd80 [ 377.065148][ T1444] ? hlock_class+0x4e/0x130 [ 377.065312][ T1444] ? __pfx___rtnl_newlink+0x10/0x10 [ 377.065479][ T1444] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 377.065680][ T1444] ? __create_object+0x5e/0xb0 [ 377.065935][ T1444] ? trace_kmalloc+0x2a/0xe0 [ 377.066100][ T1444] rtnl_newlink+0x63/0xa0 [ 377.066222][ T1444] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 377.066383][ T1444] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 377.066720][ T1444] ? hlock_class+0x4e/0x130 [ 377.066886][ T1444] ? mark_lock+0x38/0x3e0 [ 377.067014][ T1444] ? __lock_acquire+0xaf0/0x1570 [ 377.067174][ T1444] netlink_rcv_skb+0x130/0x360 [ 377.067337][ T1444] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 377.067587][ T1444] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 377.067745][ T1444] ? lock_acquire.part.0+0xeb/0x330 [ 377.067911][ T1444] ? netlink_deliver_tap+0xc8/0x340 [ 377.068072][ T1444] ? lock_acquire+0x32/0xc0 [ 377.068321][ T1444] ? netlink_deliver_tap+0xc8/0x340 [ 377.068483][ T1444] ? netlink_deliver_tap+0xc8/0x340 [ 377.068643][ T1444] ? netlink_deliver_tap+0x149/0x340 [ 377.068808][ T1444] netlink_unicast+0x449/0x710 [ 377.069060][ T1444] ? __pfx_netlink_unicast+0x10/0x10 [ 377.069225][ T1444] ? find_held_lock+0x2c/0x110 [ 377.069389][ T1444] netlink_sendmsg+0x723/0xbe0 [ 377.069556][ T1444] ? __pfx_netlink_sendmsg+0x10/0x10 [ 377.069720][ T1444] ? __might_fault+0xc3/0x170 [ 377.069983][ T1444] ? __import_iovec+0x35d/0x5d0 [ 377.070154][ T1444] ____sys_sendmsg+0x7b2/0xa10 [ 377.070316][ T1444] ? __pfx_____sys_sendmsg+0x10/0x10 [ 377.070479][ T1444] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 377.070781][ T1444] ? __pfx_validate_chain+0x10/0x10 [ 377.070947][ T1444] ___sys_sendmsg+0xee/0x170 [ 377.071108][ T1444] ? __pfx____sys_sendmsg+0x10/0x10 [ 377.071272][ T1444] ? find_held_lock+0x2c/0x110 [ 377.071532][ T1444] ? __lock_release+0x103/0x460 [ 377.071697][ T1444] ? __debug_check_no_obj_freed+0x253/0x520 [ 377.071897][ T1444] ? __pfx___lock_release+0x10/0x10 [ 377.072060][ T1444] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 377.072226][ T1444] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 377.072428][ T1444] ? __fget_light+0x53/0x1e0 [ 377.072596][ T1444] __sys_sendmsg+0xcd/0x170 [ 377.072758][ T1444] ? __pfx___sys_sendmsg+0x10/0x10 [ 377.073019][ T1444] do_syscall_64+0xc6/0x1e0 [ 377.073180][ T1444] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 377.073382][ T1444] RIP: 0033:0x7ff404bfb7b7 [ 377.073555][ T1444] 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 [ 377.074220][ T1444] RSP: 002b:00007fff0784b668 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 377.074570][ T1444] RAX: ffffffffffffffda RBX: 00007fff0784bd90 RCX: 00007ff404bfb7b7 [ 377.074811][ T1444] RDX: 0000000000000000 RSI: 00007fff0784b6d0 RDI: 0000000000000005 [ 377.075056][ T1444] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 377.075387][ T1444] R10: 00007ff404ab9ef8 R11: 0000000000000246 R12: 0000000000000003 [ 377.075632][ T1444] R13: 00000000660e1de6 R14: 0000000000495540 R15: 0000000000000000 [ 377.075881][ T1444] [ 377.081930][ T1444] ip (1444) used greatest stack depth: 22656 bytes left