Backtrace

WARNING: CPU: 1 PID: 0 at kernel/sched/core.c:2470 ttwu_queue_wakelist+0xc2/0xd0
Modules linked in: xt_nat veth nf_conntrack_netlink xt_addrtype br_netfilter overlay rfcomm ccm xt_comment xt_CHECKSUM xt_MASQUERADE nf_nat_tftp nf_conntrack_tftp nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t_REJECT nf_reject_ipv6 ip6t_rpfilter ipt_REJECT nf_reject_ipv4 tun xt_conntrack bridge stp llc ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat iptable_mangle iptable_raw iptable_security nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter cmac bnep sunrpc vfat fat squashfs loop btusb btrtl btbcm snd_soc_skl btintel bluetooth snd_soc_sst_ipc ath10k_pci snd_soc_sst_dsp snd_hda_ext_core snd_soc_acpi_intel_match snd_hda_codec_hdmi snd_soc_acpi ath10k_core snd_soc_core snd_hda_codec_generic ledtrig_audio snd_compress intel_rapl_msr ac97_bus snd_pcm_dmaengine uvcvideo snd_hda_intel mac80211 iTCO_wdt videobuf2_vmalloc mei_hdcp
 intel_pmc_bxt videobuf2_memops iTCO_vendor_support snd_intel_dspcfg videobuf2_v4l2 videobuf2_common ecdh_generic ecc videodev snd_hda_codec mc intel_rapl_common snd_hda_core ath snd_hwdep snd_seq cfg80211 snd_seq_device snd_pcm x86_pkg_temp_thermal intel_powerclamp coretemp rapl intel_cstate intel_uncore snd_timer pcspkr snd intel_wmi_thunderbolt wmi_bmof i2c_i801 i2c_smbus soundcore mei_me libarc4 joydev mei idma64 intel_xhci_usb_role_switch ideapad_laptop intel_pch_thermal roles sparse_keymap rfkill acpi_pad ip_tables i915 hid_rmi hid_logitech_hidpp rmi_core crct10dif_pclmul crc32_pclmul crc32c_intel i2c_algo_bit drm_kms_helper ghash_clmulni_intel cec serio_raw drm r8169 hid_logitech_dj wmi i2c_hid video pinctrl_sunrisepoint pinctrl_intel fuse
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.8.18-100.fc31.x86_64 #1
Hardware name: LENOVO 80YH/Cairo 5A, BIOS 4WCN42WW 10/30/2018
RIP: 0010:ttwu_queue_wakelist+0xc2/0xd0
Code: 04 7f 07 00 b8 01 00 00 00 5b 5d 41 5c 41 5d c3 31 c0 c3 31 c0 f6 c3 08 74 ef 48 c7 c1 c0 a2 02 00 83 7c 0a 04 01 77 e1 eb 82 <0f> 0b 31 c0 eb d9 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 bf 17 00
RSP: 0000:ffffa49e40118e58 EFLAGS: 00010046
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000018bf0
RDX: ffff956026c80000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000000 R12: ffff956025572740
R13: 0000000000000001 R14: ffff9560255732e4 R15: 000000000002a2c0
FS:  0000000000000000(0000) GS:ffff956026c80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000130a0a001 CR4: 00000000003606e0
Call Trace:
 <IRQ>
 try_to_wake_up+0x143/0x4f0
 ? __next_timer_interrupt+0xd0/0xd0
 call_timer_fn+0x2d/0x130
 run_timer_softirq+0x183/0x490
 ? tick_sched_do_timer+0x70/0x70
 ? __hrtimer_run_queues+0xf5/0x240
 ? recalibrate_cpu_khz+0x10/0x10
 ? ktime_get+0x38/0x90
 ? sched_clock+0x5/0x10
 __do_softirq+0xee/0x2ff
 asm_call_irq_on_stack+0x12/0x20
 </IRQ>
 do_softirq_own_stack+0x37/0x40
 irq_exit_rcu+0xd8/0xe0
 sysvec_apic_timer_interrupt+0x34/0x80
 asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0010:mwait_idle+0x80/0x1c0
Code: 8b 04 25 c0 7b 01 00 0f 01 c8 48 8b 00 a8 08 0f 85 3e 01 00 00 e9 07 00 00 00 0f 00 2d fb 8a 4b 00 31 c0 48 89 c1 fb 0f 01 c9 <65> 8b 2d 09 65 4c 43 0f 1f 44 00 00 65 48 8b 04 25 c0 7b 01 00 f0
RSP: 0000:ffffa49e400d3ec8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000087 RDI: 0000000000000001
RBP: 0000000000000001 R08: ffff956026c9d540 R09: 0000000000000000
R10: 00000000000000f4 R11: 000000000002b0f9 R12: ffff95602557a740
R13: ffffffffbdb6f540 R14: ffff956026cb5010 R15: ffff95602557a740
 do_idle+0x1de/0x260
CPU3 is up
 cpu_startup_entry+0x19/0x20
 start_secondary+0x144/0x170
 secondary_startup_64+0xb6/0xc0