[ 6036.563630][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 5502s! [kworker/u8:0:11] [ 6036.564080][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio [ 6036.564492][ C2] irq event stamp: 753065 [ 6036.564706][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90 [ 6036.565170][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff [ 6036.565635][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff [ 6036.566096][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0 [ 6036.566551][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1 [ 6036.567031][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 6036.567632][ C2] Workqueue: netns cleanup_net [ 6036.567874][ C2] RIP: 0010:kasan_report+0xd2/0xf0 [ 6036.568134][ C2] Code: 24 28 4c 89 6c 24 30 e8 7c f5 ff ff 48 8d 7c 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd 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 [ 6036.569090][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000282 [ 6036.569393][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb3f0c [ 6036.569786][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008 [ 6036.570180][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01 [ 6036.570575][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000000 [ 6036.570988][ C2] R13: ffffffffaeeb3f0c R14: 0000000000000004 R15: ffff888001c02640 [ 6036.571380][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000 [ 6036.571819][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6036.572146][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0 [ 6036.572538][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 6036.572928][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 6036.573321][ C2] PKRU: 55555554 [ 6036.573498][ C2] Call Trace: [ 6036.573667][ C2] [ 6036.573812][ C2] ? watchdog_timer_fn+0x2cf/0x3c0 [ 6036.574072][ C2] ? __run_hrtimer+0x1c0/0x710 [ 6036.574311][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10 [ 6036.574585][ C2] ? __hrtimer_run_queues+0x197/0x270 [ 6036.574854][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 6036.575135][ C2] ? kvm_clock_get_cycles+0x18/0x30 [ 6036.575398][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0 [ 6036.575698][ C2] ? hrtimer_interrupt+0x2c3/0x770 [ 6036.575954][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380 [ 6036.576259][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80 [ 6036.576551][ C2] [ 6036.576698][ C2] [ 6036.576847][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 6036.577156][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90 [ 6036.577447][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90 [ 6036.577739][ C2] ? kasan_report+0xd2/0xf0 [ 6036.577968][ C2] queued_spin_lock_slowpath+0xa0c/0xb90 [ 6036.578250][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10 [ 6036.578557][ C2] ? __pfx___schedule+0x10/0x10 [ 6036.578801][ C2] do_raw_spin_lock+0x1ec/0x270 [ 6036.579047][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 6036.579315][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10 [ 6036.579595][ C2] ? lock_acquire+0x1c1/0x220 [ 6036.579832][ C2] ? __mutex_lock+0x33e/0xb10 [ 6036.580067][ C2] ? __mutex_lock+0x811/0xb10 [ 6036.580303][ C2] _raw_spin_lock+0x67/0x80 [ 6036.580531][ C2] __mutex_lock+0x33e/0xb10 [ 6036.580774][ C2] ? __lock_release+0x40f/0x880 [ 6036.581018][ C2] ? __pfx___lock_release+0x10/0x10 [ 6036.581278][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6036.581570][ C2] ? __pfx___mutex_lock+0x10/0x10 [ 6036.581821][ C2] ? __pfx___up_read+0x10/0x10 [ 6036.582064][ C2] ? refcount_dec_not_one+0x6b/0x180 [ 6036.582328][ C2] ? tc_setup_cb_destroy+0x22b/0x300 [ 6036.582592][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10 [ 6036.582881][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6036.583170][ C2] refcount_dec_and_mutex_lock+0x35/0x90 [ 6036.583453][ C2] __tcf_action_put+0x3d/0xf0 [ 6036.583691][ C2] tcf_action_destroy+0x43/0x130 [ 6036.583938][ C2] tcf_exts_destroy+0x3c/0xb0 [ 6036.584172][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower] [ 6036.584486][ C2] __fl_put+0x21a/0x290 [cls_flower] [ 6036.584755][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower] [ 6036.585052][ C2] ? __fl_delete+0x33f/0x750 [cls_flower] [ 6036.585342][ C2] __fl_delete+0x4e4/0x750 [cls_flower] [ 6036.585624][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower] [ 6036.585932][ C2] ? __lock_release+0x40f/0x880 [ 6036.586176][ C2] ? __mutex_lock+0x26e/0xb10 [ 6036.586411][ C2] fl_destroy+0x1ae/0x300 [cls_flower] [ 6036.586691][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower] [ 6036.586992][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 6036.587293][ C2] tcf_proto_destroy+0x6e/0x2e0 [ 6036.587538][ C2] tcf_chain_flush+0x1e0/0x320 [ 6036.587779][ C2] __tcf_block_put+0x113/0x270 [ 6036.588023][ C2] tcf_block_put+0xaf/0xf0 [ 6036.588244][ C2] ? __pfx_tcf_block_put+0x10/0x10 [ 6036.588500][ C2] ? prio_reset+0x88/0xe0 [sch_prio] [ 6036.588766][ C2] prio_destroy+0x4d/0x120 [sch_prio] [ 6036.589040][ C2] __qdisc_destroy+0xee/0x340 [ 6036.589274][ C2] dev_shutdown+0x164/0x350 [ 6036.589504][ C2] unregister_netdevice_many_notify+0x4fe/0x1180 [ 6036.589824][ C2] ? mutex_is_locked+0x17/0x50 [ 6036.590064][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 6036.590397][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 6036.590708][ C2] default_device_exit_batch+0x234/0x2d0 [ 6036.591021][ C2] ? __pfx_default_device_exit_batch+0x10/0x10 [ 6036.591327][ C2] ? ops_exit_list+0xb4/0x170 [ 6036.591564][ C2] cleanup_net+0x4f3/0xb60 [ 6036.591789][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 6036.592068][ C2] ? __pfx_cleanup_net+0x10/0x10 [ 6036.592315][ C2] ? lock_acquire+0x1c1/0x220 [ 6036.592550][ C2] ? process_one_work+0x714/0x1310 [ 6036.592808][ C2] process_one_work+0x78c/0x1310 [ 6036.593058][ C2] ? hlock_class+0x4e/0x130 [ 6036.593285][ C2] ? __pfx_process_one_work+0x10/0x10 [ 6036.593556][ C2] ? assign_work+0x16c/0x240 [ 6036.593785][ C2] worker_thread+0x73d/0x1010 [ 6036.594024][ C2] ? __pfx_worker_thread+0x10/0x10 [ 6036.594279][ C2] kthread+0x28f/0x360 [ 6036.594484][ C2] ? __pfx_kthread+0x10/0x10 [ 6036.594715][ C2] ret_from_fork+0x31/0x70 [ 6036.594940][ C2] ? __pfx_kthread+0x10/0x10 [ 6036.595168][ C2] ret_from_fork_asm+0x1b/0x30 [ 6036.595413][ C2] [ 6063.431955][ T8] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 5931373 jiffies s: 4309 root: 0x4/. [ 6063.432594][ T8] rcu: blocking rcu_node structures (internal RCU debug): [ 6063.432956][ T8] Sending NMI from CPU 0 to CPUs 2: [ 6063.433234][ C2] NMI backtrace for cpu 2 [ 6063.433240][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1 [ 6063.433245][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 6063.433248][ C2] Workqueue: netns cleanup_net [ 6063.433255][ C2] RIP: 0010:queued_spin_lock_slowpath+0x12d/0xb90 [ 6063.433262][ C2] Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 43 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e2 00 00 [ 6063.433264][ C2] RSP: 0018:ffffc900000bf2b0 EFLAGS: 00000202 [ 6063.433267][ C2] RAX: 0000000000000000 RBX: 000000006b6b6b6b RCX: ffffffffaeeb3f0c [ 6063.433269][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008 [ 6063.433270][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01 [ 6063.433272][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003 [ 6063.433274][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57 [ 6063.433276][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000 [ 6063.433278][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6063.433281][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0 [ 6063.433283][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 6063.433284][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 6063.433286][ C2] PKRU: 55555554 [ 6063.433286][ C2] Call Trace: [ 6063.433290][ C2] [ 6063.433293][ C2] ? nmi_cpu_backtrace+0x112/0x220 [ 6063.433298][ C2] ? nmi_cpu_backtrace_handler+0x11/0x20 [ 6063.433303][ C2] ? nmi_handle+0x153/0x420 [ 6063.433308][ C2] ? default_do_nmi+0x41/0x100 [ 6063.433312][ C2] ? exc_nmi+0xf3/0x120 [ 6063.433315][ C2] ? end_repeat_nmi+0xf/0x60 [ 6063.433319][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90 [ 6063.433323][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90 [ 6063.433326][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90 [ 6063.433330][ C2] ? queued_spin_lock_slowpath+0x12d/0xb90 [ 6063.433333][ C2] [ 6063.433334][ C2] [ 6063.433335][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10 [ 6063.433339][ C2] ? __pfx___schedule+0x10/0x10 [ 6063.433345][ C2] do_raw_spin_lock+0x1ec/0x270 [ 6063.433350][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 6063.433353][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10 [ 6063.433356][ C2] ? lock_acquire+0x1c1/0x220 [ 6063.433359][ C2] ? __mutex_lock+0x33e/0xb10 [ 6063.433363][ C2] ? __mutex_lock+0x811/0xb10 [ 6063.433366][ C2] _raw_spin_lock+0x67/0x80 [ 6063.433369][ C2] __mutex_lock+0x33e/0xb10 [ 6063.433372][ C2] ? __lock_release+0x40f/0x880 [ 6063.433375][ C2] ? __pfx___lock_release+0x10/0x10 [ 6063.433378][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6063.433383][ C2] ? __pfx___mutex_lock+0x10/0x10 [ 6063.433386][ C2] ? __pfx___up_read+0x10/0x10 [ 6063.433390][ C2] ? refcount_dec_not_one+0x6b/0x180 [ 6063.433393][ C2] ? tc_setup_cb_destroy+0x22b/0x300 [ 6063.433397][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10 [ 6063.433402][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6063.433406][ C2] refcount_dec_and_mutex_lock+0x35/0x90 [ 6063.433410][ C2] __tcf_action_put+0x3d/0xf0 [ 6063.433414][ C2] tcf_action_destroy+0x43/0x130 [ 6063.433418][ C2] tcf_exts_destroy+0x3c/0xb0 [ 6063.433421][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower] [ 6063.433431][ C2] __fl_put+0x21a/0x290 [cls_flower] [ 6063.433440][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower] [ 6063.433448][ C2] ? __fl_delete+0x33f/0x750 [cls_flower] [ 6063.433457][ C2] __fl_delete+0x4e4/0x750 [cls_flower] [ 6063.433466][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower] [ 6063.433474][ C2] ? __lock_release+0x40f/0x880 [ 6063.433477][ C2] ? __mutex_lock+0x26e/0xb10 [ 6063.433481][ C2] fl_destroy+0x1ae/0x300 [cls_flower] [ 6063.433490][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower] [ 6063.433498][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 6063.433503][ C2] tcf_proto_destroy+0x6e/0x2e0 [ 6063.433507][ C2] tcf_chain_flush+0x1e0/0x320 [ 6063.433511][ C2] __tcf_block_put+0x113/0x270 [ 6063.433515][ C2] tcf_block_put+0xaf/0xf0 [ 6063.433518][ C2] ? __pfx_tcf_block_put+0x10/0x10 [ 6063.433521][ C2] ? prio_reset+0x88/0xe0 [sch_prio] [ 6063.433528][ C2] prio_destroy+0x4d/0x120 [sch_prio] [ 6063.433534][ C2] __qdisc_destroy+0xee/0x340 [ 6063.433538][ C2] dev_shutdown+0x164/0x350 [ 6063.433542][ C2] unregister_netdevice_many_notify+0x4fe/0x1180 [ 6063.433547][ C2] ? mutex_is_locked+0x17/0x50 [ 6063.433550][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 6063.433552][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 6063.433557][ C2] default_device_exit_batch+0x234/0x2d0 [ 6063.433560][ C2] ? __pfx_default_device_exit_batch+0x10/0x10 [ 6063.433563][ C2] ? ops_exit_list+0xb4/0x170 [ 6063.433566][ C2] cleanup_net+0x4f3/0xb60 [ 6063.433569][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 6063.433571][ C2] ? __pfx_cleanup_net+0x10/0x10 [ 6063.433574][ C2] ? lock_acquire+0x1c1/0x220 [ 6063.433577][ C2] ? process_one_work+0x714/0x1310 [ 6063.433582][ C2] process_one_work+0x78c/0x1310 [ 6063.433586][ C2] ? hlock_class+0x4e/0x130 [ 6063.433589][ C2] ? __pfx_process_one_work+0x10/0x10 [ 6063.433594][ C2] ? assign_work+0x16c/0x240 [ 6063.433597][ C2] worker_thread+0x73d/0x1010 [ 6063.433602][ C2] ? __pfx_worker_thread+0x10/0x10 [ 6063.433604][ C2] kthread+0x28f/0x360 [ 6063.433607][ C2] ? __pfx_kthread+0x10/0x10 [ 6063.433610][ C2] ret_from_fork+0x31/0x70 [ 6063.433613][ C2] ? __pfx_kthread+0x10/0x10 [ 6063.433615][ C2] ret_from_fork_asm+0x1b/0x30 [ 6063.433624][ C2] [ 6088.336947][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU [ 6088.337321][ C2] rcu: 2-....: (5945473 ticks this GP) idle=2454/1/0x4000000000000000 softirq=74785/74791 fqs=1467564 [ 6088.337866][ C2] rcu: (t=5956584 jiffies g=119533 q=11137 ncpus=4) [ 6088.338202][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1 [ 6088.338670][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 6088.339274][ C2] Workqueue: netns cleanup_net [ 6088.339518][ C2] RIP: 0010:kasan_report+0xd2/0xf0 [ 6088.339776][ C2] Code: 24 28 4c 89 6c 24 30 e8 7c f5 ff ff 48 8d 7c 24 10 e8 92 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 02 fd 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 [ 6088.340745][ C2] RSP: 0018:ffffc900000bf1e8 EFLAGS: 00000286 [ 6088.341046][ C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaeeb35b0 [ 6088.341440][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008 [ 6088.341833][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01 [ 6088.342225][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000000 [ 6088.342617][ C2] R13: ffffffffaeeb35b0 R14: 0000000000000004 R15: ffff888001c02640 [ 6088.343010][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000 [ 6088.343450][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6088.343777][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0 [ 6088.344170][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 6088.344561][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 6088.344956][ C2] PKRU: 55555554 [ 6088.345134][ C2] Call Trace: [ 6088.345301][ C2] [ 6088.345451][ C2] ? rcu_dump_cpu_stacks+0x2a3/0x4c0 [ 6088.345722][ C2] ? print_cpu_stall+0x263/0x6a0 [ 6088.345971][ C2] ? check_cpu_stall+0x284/0x500 [ 6088.346218][ C2] ? rcu_pending+0x92/0x360 [ 6088.346443][ C2] ? rcu_sched_clock_irq+0x107/0x3f0 [ 6088.346710][ C2] ? update_process_times+0xb9/0x110 [ 6088.346977][ C2] ? tick_sched_handle+0x67/0x130 [ 6088.347230][ C2] ? tick_nohz_highres_handler+0xa7/0xd0 [ 6088.347509][ C2] ? __run_hrtimer+0x1c0/0x710 [ 6088.347748][ C2] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ 6088.348055][ C2] ? __hrtimer_run_queues+0x197/0x270 [ 6088.348322][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 6088.348607][ C2] ? kvm_clock_get_cycles+0x18/0x30 [ 6088.348867][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0 [ 6088.349167][ C2] ? hrtimer_interrupt+0x2c3/0x770 [ 6088.349425][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380 [ 6088.349729][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80 [ 6088.350022][ C2] [ 6088.350168][ C2] [ 6088.350318][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 6088.350645][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90 [ 6088.350930][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90 [ 6088.351215][ C2] ? kasan_report+0xd2/0xf0 [ 6088.351442][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90 [ 6088.351727][ C2] ? kasan_report+0xda/0xf0 [ 6088.351953][ C2] kasan_check_range+0x39/0x1c0 [ 6088.352199][ C2] queued_spin_lock_slowpath+0xb0/0xb90 [ 6088.352480][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10 [ 6088.352787][ C2] ? __pfx___schedule+0x10/0x10 [ 6088.353032][ C2] do_raw_spin_lock+0x1ec/0x270 [ 6088.353279][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 6088.353549][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10 [ 6088.353830][ C2] ? lock_acquire+0x1c1/0x220 [ 6088.354066][ C2] ? __mutex_lock+0x33e/0xb10 [ 6088.354301][ C2] ? __mutex_lock+0x811/0xb10 [ 6088.354538][ C2] _raw_spin_lock+0x67/0x80 [ 6088.354771][ C2] __mutex_lock+0x33e/0xb10 [ 6088.354996][ C2] ? __lock_release+0x40f/0x880 [ 6088.355242][ C2] ? __pfx___lock_release+0x10/0x10 [ 6088.355501][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6088.355796][ C2] ? __pfx___mutex_lock+0x10/0x10 [ 6088.356050][ C2] ? __pfx___up_read+0x10/0x10 [ 6088.356292][ C2] ? refcount_dec_not_one+0x6b/0x180 [ 6088.356555][ C2] ? tc_setup_cb_destroy+0x22b/0x300 [ 6088.356819][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10 [ 6088.357114][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6088.357406][ C2] refcount_dec_and_mutex_lock+0x35/0x90 [ 6088.357688][ C2] __tcf_action_put+0x3d/0xf0 [ 6088.357927][ C2] tcf_action_destroy+0x43/0x130 [ 6088.358176][ C2] tcf_exts_destroy+0x3c/0xb0 [ 6088.358410][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower] [ 6088.358728][ C2] __fl_put+0x21a/0x290 [cls_flower] [ 6088.359000][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower] [ 6088.359296][ C2] ? __fl_delete+0x33f/0x750 [cls_flower] [ 6088.359587][ C2] __fl_delete+0x4e4/0x750 [cls_flower] [ 6088.359869][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower] [ 6088.360178][ C2] ? __lock_release+0x40f/0x880 [ 6088.360423][ C2] ? __mutex_lock+0x26e/0xb10 [ 6088.360672][ C2] fl_destroy+0x1ae/0x300 [cls_flower] [ 6088.360951][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower] [ 6088.361252][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 6088.361550][ C2] tcf_proto_destroy+0x6e/0x2e0 [ 6088.361794][ C2] tcf_chain_flush+0x1e0/0x320 [ 6088.362034][ C2] __tcf_block_put+0x113/0x270 [ 6088.362275][ C2] tcf_block_put+0xaf/0xf0 [ 6088.362496][ C2] ? __pfx_tcf_block_put+0x10/0x10 [ 6088.362751][ C2] ? prio_reset+0x88/0xe0 [sch_prio] [ 6088.363020][ C2] prio_destroy+0x4d/0x120 [sch_prio] [ 6088.363292][ C2] __qdisc_destroy+0xee/0x340 [ 6088.363527][ C2] dev_shutdown+0x164/0x350 [ 6088.363753][ C2] unregister_netdevice_many_notify+0x4fe/0x1180 [ 6088.364069][ C2] ? mutex_is_locked+0x17/0x50 [ 6088.364308][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 6088.364641][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 6088.364953][ C2] default_device_exit_batch+0x234/0x2d0 [ 6088.365235][ C2] ? __pfx_default_device_exit_batch+0x10/0x10 [ 6088.365541][ C2] ? ops_exit_list+0xb4/0x170 [ 6088.365774][ C2] cleanup_net+0x4f3/0xb60 [ 6088.366003][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 6088.366280][ C2] ? __pfx_cleanup_net+0x10/0x10 [ 6088.366527][ C2] ? lock_acquire+0x1c1/0x220 [ 6088.366761][ C2] ? process_one_work+0x714/0x1310 [ 6088.367018][ C2] process_one_work+0x78c/0x1310 [ 6088.367266][ C2] ? hlock_class+0x4e/0x130 [ 6088.367494][ C2] ? __pfx_process_one_work+0x10/0x10 [ 6088.367762][ C2] ? assign_work+0x16c/0x240 [ 6088.367995][ C2] worker_thread+0x73d/0x1010 [ 6088.368231][ C2] ? __pfx_worker_thread+0x10/0x10 [ 6088.368486][ C2] kthread+0x28f/0x360 [ 6088.368694][ C2] ? __pfx_kthread+0x10/0x10 [ 6088.368922][ C2] ret_from_fork+0x31/0x70 [ 6088.369147][ C2] ? __pfx_kthread+0x10/0x10 [ 6088.369378][ C2] ret_from_fork_asm+0x1b/0x30 [ 6088.369620][ C2] [ 6112.563638][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 5573s! [kworker/u8:0:11] [ 6112.564091][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio [ 6112.564510][ C2] irq event stamp: 753065 [ 6112.564729][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90 [ 6112.565197][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff [ 6112.565665][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff [ 6112.566131][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0 [ 6112.566591][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1 [ 6112.567060][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 6112.567670][ C2] Workqueue: netns cleanup_net [ 6112.567916][ C2] RIP: 0010:kasan_report+0x0/0xf0 [ 6112.568174][ C2] Code: e8 f5 fd ff ff 48 83 c4 68 5b 5d 41 5c c3 cc cc cc cc 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <66> 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 [ 6112.569138][ C2] RSP: 0018:ffffc900000bf288 EFLAGS: 00000213 [ 6112.569444][ C2] RAX: 0000000000000001 RBX: ffffed100701fa02 RCX: ffffffffaeeb35b0 [ 6112.569839][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008 [ 6112.570234][ C2] RBP: ffffed100701fa01 R08: 0000000000000000 R09: ffffed100701fa01 [ 6112.570634][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003 [ 6112.571031][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: 1ffff92000017e57 [ 6112.571426][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000 [ 6112.571868][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6112.572198][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0 [ 6112.572596][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 6112.572994][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 6112.573389][ C2] PKRU: 55555554 [ 6112.573569][ C2] Call Trace: [ 6112.573743][ C2] [ 6112.573890][ C2] ? watchdog_timer_fn+0x2cf/0x3c0 [ 6112.574150][ C2] ? __run_hrtimer+0x1c0/0x710 [ 6112.574392][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10 [ 6112.574665][ C2] ? __hrtimer_run_queues+0x197/0x270 [ 6112.574933][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 6112.575219][ C2] ? kvm_clock_get_cycles+0x18/0x30 [ 6112.575481][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0 [ 6112.575784][ C2] ? hrtimer_interrupt+0x2c3/0x770 [ 6112.576043][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380 [ 6112.576349][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80 [ 6112.576644][ C2] [ 6112.576793][ C2] [ 6112.576941][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 6112.577254][ C2] ? queued_spin_lock_slowpath+0xb0/0xb90 [ 6112.577539][ C2] ? __pfx_kasan_report+0x10/0x10 [ 6112.577792][ C2] kasan_check_range+0x39/0x1c0 [ 6112.578040][ C2] queued_spin_lock_slowpath+0xb0/0xb90 [ 6112.578318][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10 [ 6112.578627][ C2] ? __pfx___schedule+0x10/0x10 [ 6112.578873][ C2] do_raw_spin_lock+0x1ec/0x270 [ 6112.579120][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 6112.579389][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10 [ 6112.579670][ C2] ? lock_acquire+0x1c1/0x220 [ 6112.579906][ C2] ? __mutex_lock+0x33e/0xb10 [ 6112.580142][ C2] ? __mutex_lock+0x811/0xb10 [ 6112.580389][ C2] _raw_spin_lock+0x67/0x80 [ 6112.580618][ C2] __mutex_lock+0x33e/0xb10 [ 6112.580844][ C2] ? __lock_release+0x40f/0x880 [ 6112.581091][ C2] ? __pfx___lock_release+0x10/0x10 [ 6112.581350][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6112.581644][ C2] ? __pfx___mutex_lock+0x10/0x10 [ 6112.581897][ C2] ? __pfx___up_read+0x10/0x10 [ 6112.582140][ C2] ? refcount_dec_not_one+0x6b/0x180 [ 6112.582405][ C2] ? tc_setup_cb_destroy+0x22b/0x300 [ 6112.582670][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10 [ 6112.582959][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6112.583249][ C2] refcount_dec_and_mutex_lock+0x35/0x90 [ 6112.583533][ C2] __tcf_action_put+0x3d/0xf0 [ 6112.583770][ C2] tcf_action_destroy+0x43/0x130 [ 6112.584020][ C2] tcf_exts_destroy+0x3c/0xb0 [ 6112.584256][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower] [ 6112.584571][ C2] __fl_put+0x21a/0x290 [cls_flower] [ 6112.584840][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower] [ 6112.585140][ C2] ? __fl_delete+0x33f/0x750 [cls_flower] [ 6112.585429][ C2] __fl_delete+0x4e4/0x750 [cls_flower] [ 6112.585715][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower] [ 6112.586023][ C2] ? __lock_release+0x40f/0x880 [ 6112.586267][ C2] ? __mutex_lock+0x26e/0xb10 [ 6112.586504][ C2] fl_destroy+0x1ae/0x300 [cls_flower] [ 6112.586783][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower] [ 6112.587088][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 6112.587390][ C2] tcf_proto_destroy+0x6e/0x2e0 [ 6112.587635][ C2] tcf_chain_flush+0x1e0/0x320 [ 6112.587877][ C2] __tcf_block_put+0x113/0x270 [ 6112.588119][ C2] tcf_block_put+0xaf/0xf0 [ 6112.588342][ C2] ? __pfx_tcf_block_put+0x10/0x10 [ 6112.588599][ C2] ? prio_reset+0x88/0xe0 [sch_prio] [ 6112.588866][ C2] prio_destroy+0x4d/0x120 [sch_prio] [ 6112.589140][ C2] __qdisc_destroy+0xee/0x340 [ 6112.589376][ C2] dev_shutdown+0x164/0x350 [ 6112.589606][ C2] unregister_netdevice_many_notify+0x4fe/0x1180 [ 6112.589924][ C2] ? mutex_is_locked+0x17/0x50 [ 6112.590166][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 6112.590505][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 6112.590820][ C2] default_device_exit_batch+0x234/0x2d0 [ 6112.591101][ C2] ? __pfx_default_device_exit_batch+0x10/0x10 [ 6112.591408][ C2] ? ops_exit_list+0xb4/0x170 [ 6112.591644][ C2] cleanup_net+0x4f3/0xb60 [ 6112.591869][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 6112.592149][ C2] ? __pfx_cleanup_net+0x10/0x10 [ 6112.592397][ C2] ? lock_acquire+0x1c1/0x220 [ 6112.592634][ C2] ? process_one_work+0x714/0x1310 [ 6112.592892][ C2] process_one_work+0x78c/0x1310 [ 6112.593144][ C2] ? hlock_class+0x4e/0x130 [ 6112.593370][ C2] ? __pfx_process_one_work+0x10/0x10 [ 6112.593641][ C2] ? assign_work+0x16c/0x240 [ 6112.593872][ C2] worker_thread+0x73d/0x1010 [ 6112.594112][ C2] ? __pfx_worker_thread+0x10/0x10 [ 6112.594368][ C2] kthread+0x28f/0x360 [ 6112.594573][ C2] ? __pfx_kthread+0x10/0x10 [ 6112.594806][ C2] ret_from_fork+0x31/0x70 [ 6112.595030][ C2] ? __pfx_kthread+0x10/0x10 [ 6112.595260][ C2] ret_from_fork_asm+0x1b/0x30 [ 6112.595505][ C2] [ 6140.563629][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 5599s! [kworker/u8:0:11] [ 6140.564077][ C2] Modules linked in: act_csum libcrc32c act_pedit cls_flower sch_prio [ 6140.564485][ C2] irq event stamp: 753065 [ 6140.564702][ C2] hardirqs last enabled at (753065): [] irqentry_exit+0x3b/0x90 [ 6140.565167][ C2] hardirqs last disabled at (753064): [] __do_softirq+0x670/0x7ff [ 6140.565632][ C2] softirqs last enabled at (753020): [] __do_softirq+0x519/0x7ff [ 6140.566096][ C2] softirqs last disabled at (751489): [] irq_exit_rcu+0x98/0xc0 [ 6140.566551][ C2] CPU: 2 PID: 11 Comm: kworker/u8:0 Tainted: G B L 6.8.0-rc2-virtme #1 [ 6140.567018][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 6140.567623][ C2] Workqueue: netns cleanup_net [ 6140.567866][ C2] RIP: 0010:kasan_report+0x22/0xf0 [ 6140.568125][ C2] Code: 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 53 48 83 ec 70 9c 8f 04 24 0f 01 ca 65 4c 8b 3c 25 80 b8 1f 00 <41> 8b 87 e0 17 00 00 85 c0 0f 85 b7 00 00 00 48 89 fd 49 89 f6 89 [ 6140.569081][ C2] RSP: 0018:ffffc900000bf208 EFLAGS: 00000282 [ 6140.569384][ C2] RAX: 00000000000000fb RBX: 000000006b6b6b6b RCX: ffffffffaeeb3f0c [ 6140.569777][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880380fd008 [ 6140.570170][ C2] RBP: ffff8880380fd008 R08: 0000000000000000 R09: ffffed100701fa01 [ 6140.570568][ C2] R10: 0000000000000003 R11: 205d313154202020 R12: 0000000000000003 [ 6140.570965][ C2] R13: ffffed100701fa01 R14: 0000000000000001 R15: ffff888001c02640 [ 6140.571357][ C2] FS: 0000000000000000(0000) GS:ffff88802ee00000(0000) knlGS:0000000000000000 [ 6140.571797][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6140.572125][ C2] CR2: 00007f63a5071270 CR3: 0000000036734002 CR4: 0000000000770ef0 [ 6140.572520][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 6140.572914][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 6140.573307][ C2] PKRU: 55555554 [ 6140.573487][ C2] Call Trace: [ 6140.573656][ C2] [ 6140.573802][ C2] ? watchdog_timer_fn+0x2cf/0x3c0 [ 6140.574062][ C2] ? __run_hrtimer+0x1c0/0x710 [ 6140.574303][ C2] ? __pfx_watchdog_timer_fn+0x10/0x10 [ 6140.574576][ C2] ? __hrtimer_run_queues+0x197/0x270 [ 6140.574843][ C2] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 6140.575129][ C2] ? kvm_clock_get_cycles+0x18/0x30 [ 6140.575390][ C2] ? ktime_get_update_offsets_now+0xe1/0x2d0 [ 6140.575693][ C2] ? hrtimer_interrupt+0x2c3/0x770 [ 6140.575952][ C2] ? __sysvec_apic_timer_interrupt+0xbe/0x380 [ 6140.576257][ C2] ? sysvec_apic_timer_interrupt+0x70/0x80 [ 6140.576547][ C2] [ 6140.576696][ C2] [ 6140.576844][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 6140.577156][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90 [ 6140.577447][ C2] ? kasan_report+0x22/0xf0 [ 6140.577676][ C2] ? queued_spin_lock_slowpath+0xa0c/0xb90 [ 6140.577968][ C2] ? kasan_report+0xe/0xf0 [ 6140.578191][ C2] queued_spin_lock_slowpath+0xa0c/0xb90 [ 6140.578473][ C2] ? __pfx_queued_spin_lock_slowpath+0x10/0x10 [ 6140.578784][ C2] ? __pfx___schedule+0x10/0x10 [ 6140.579030][ C2] do_raw_spin_lock+0x1ec/0x270 [ 6140.579275][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 6140.579544][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10 [ 6140.579824][ C2] ? lock_acquire+0x1c1/0x220 [ 6140.580061][ C2] ? __mutex_lock+0x33e/0xb10 [ 6140.580301][ C2] ? __mutex_lock+0x811/0xb10 [ 6140.580536][ C2] _raw_spin_lock+0x67/0x80 [ 6140.580765][ C2] __mutex_lock+0x33e/0xb10 [ 6140.580993][ C2] ? __lock_release+0x40f/0x880 [ 6140.581235][ C2] ? __pfx___lock_release+0x10/0x10 [ 6140.581496][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6140.581791][ C2] ? __pfx___mutex_lock+0x10/0x10 [ 6140.582043][ C2] ? __pfx___up_read+0x10/0x10 [ 6140.582285][ C2] ? refcount_dec_not_one+0x6b/0x180 [ 6140.582548][ C2] ? tc_setup_cb_destroy+0x22b/0x300 [ 6140.582813][ C2] ? __pfx_refcount_dec_not_one+0x10/0x10 [ 6140.583102][ C2] ? refcount_dec_and_mutex_lock+0x35/0x90 [ 6140.583393][ C2] refcount_dec_and_mutex_lock+0x35/0x90 [ 6140.583676][ C2] __tcf_action_put+0x3d/0xf0 [ 6140.583914][ C2] tcf_action_destroy+0x43/0x130 [ 6140.584163][ C2] tcf_exts_destroy+0x3c/0xb0 [ 6140.584398][ C2] __fl_destroy_filter+0x54/0x120 [cls_flower] [ 6140.584712][ C2] __fl_put+0x21a/0x290 [cls_flower] [ 6140.584982][ C2] ? __pfx___fl_put+0x10/0x10 [cls_flower] [ 6140.585281][ C2] ? __fl_delete+0x33f/0x750 [cls_flower] [ 6140.585571][ C2] __fl_delete+0x4e4/0x750 [cls_flower] [ 6140.585854][ C2] ? __pfx___fl_delete+0x10/0x10 [cls_flower] [ 6140.586163][ C2] ? __lock_release+0x40f/0x880 [ 6140.586406][ C2] ? __mutex_lock+0x26e/0xb10 [ 6140.586641][ C2] fl_destroy+0x1ae/0x300 [cls_flower] [ 6140.586922][ C2] ? __pfx_fl_destroy+0x10/0x10 [cls_flower] [ 6140.587224][ C2] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 6140.587525][ C2] tcf_proto_destroy+0x6e/0x2e0 [ 6140.587772][ C2] tcf_chain_flush+0x1e0/0x320 [ 6140.588014][ C2] __tcf_block_put+0x113/0x270 [ 6140.588256][ C2] tcf_block_put+0xaf/0xf0 [ 6140.588479][ C2] ? __pfx_tcf_block_put+0x10/0x10 [ 6140.588736][ C2] ? prio_reset+0x88/0xe0 [sch_prio] [ 6140.589004][ C2] prio_destroy+0x4d/0x120 [sch_prio] [ 6140.589279][ C2] __qdisc_destroy+0xee/0x340 [ 6140.589515][ C2] dev_shutdown+0x164/0x350 [ 6140.589743][ C2] unregister_netdevice_many_notify+0x4fe/0x1180 [ 6140.590061][ C2] ? mutex_is_locked+0x17/0x50 [ 6140.590305][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 6140.590639][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 6140.590952][ C2] default_device_exit_batch+0x234/0x2d0 [ 6140.591233][ C2] ? __pfx_default_device_exit_batch+0x10/0x10 [ 6140.591541][ C2] ? ops_exit_list+0xb4/0x170 [ 6140.591776][ C2] cleanup_net+0x4f3/0xb60 [ 6140.592002][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 6140.592280][ C2] ? __pfx_cleanup_net+0x10/0x10 [ 6140.592528][ C2] ? lock_acquire+0x1c1/0x220 [ 6140.592764][ C2] ? process_one_work+0x714/0x1310 [ 6140.593022][ C2] process_one_work+0x78c/0x1310 [ 6140.593272][ C2] ? hlock_class+0x4e/0x130 [ 6140.593500][ C2] ? __pfx_process_one_work+0x10/0x10 [ 6140.593770][ C2] ? assign_work+0x16c/0x240 [ 6140.594002][ C2] worker_thread+0x73d/0x1010 [ 6140.594239][ C2] ? __pfx_worker_thread+0x10/0x10 [ 6140.594495][ C2] kthread+0x28f/0x360 [ 6140.594700][ C2] ? __pfx_kthread+0x10/0x10 [ 6140.594931][ C2] ret_from_fork+0x31/0x70 [ 6140.595159][ C2] ? __pfx_kthread+0x10/0x10 [ 6140.595389][ C2] ret_from_fork_asm+0x1b/0x30 [ 6140.595632][ C2] exit [?2004l exit Powering off. [ 6144.386434][ T943] ACPI: PM: Preparing to enter system sleep state S5 [ 6144.387178][ T943] kvm: exiting hardware virtualization [ 6144.387501][ T943] reboot: Power down