soft lockup - CPU#0 stuck

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Any idea why I get this error message in my dmesg intermittently?

    [138161.797638] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [wpa_supplicant:1772]
    [138161.797648] Modules linked in: veth xfs ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter ip_tables xt_conntrack x_tables nf_nat nf_conntrack br_netfilter bridge stp llc dm_thin_pool dm_persistent_data dm_bio_prison dm_bufio libcrc32c crc32c_generic ctr ccm uvcvideo videobuf2_vmalloc videobuf2_memops joydev videobuf2_v4l2 edac_mce_amd kvm_amd videobuf2_core videodev media kvm irqbypass btusb btrtl btbcm btintel crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc arc4 input_leds k10temp rtl8723be aesni_intel aes_x86_64 crypto_simd btcoexist glue_helper rtl8723_common cryptd rtl_pci rtlwifi psmouse mac80211 wmi_bmof fam15h_power r8169 snd_hda_codec_conexant i2c_piix4 snd_hda_codec_generic
    [138161.797732]  snd_hda_codec_hdmi cfg80211 rtsx_pci_ms memstick battery snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm i2c_scmi ac thinkpad_acpi nvram evdev mac_hid shpchp acpi_cpufreq pci_stub vboxpci(O) vboxnetflt(O) vboxnetadp(O) vboxdrv(O) snd_seq snd_seq_device snd_timer snd soundcore vhost_vsock vmw_vsock_virtio_transport_common vsock vhost_net vhost tap uhid hid hci_vhci bluetooth ecdh_generic rfkill vfio_iommu_type1 vfio dm_mod uinput userio ppp_generic slhc tun loop btrfs xor raid6_pq cuse fuse ext4 crc16 mbcache jbd2 amdgpu sd_mod amdkfd amd_iommu_v2 rtsx_pci_sdmmc radeon mmc_core hwmon i2c_algo_bit drm_kms_helper ahci syscopyarea sysfillrect libahci ohci_pci sysimgblt xhci_pci fb_sys_fops ttm libata crc32c_intel xhci_hcd serio_raw ohci_hcd ehci_pci ehci_hcd scsi_mod usbcore drm rtsx_pci agpgart wmi video button
    [138161.797843] CPU: 0 PID: 1772 Comm: wpa_supplicant Tainted: G           O L  4.13.8_1 #1
    [138161.797845] Hardware name: LENOVO 20DE001PUS/20DE001PUS, BIOS HTET39WW (1.11 ) 12/19/2014
    [138161.797848] task: ffff9b9d52d88000 task.stack: ffffb51e813a0000
    [138161.797859] RIP: 0010:_raw_spin_unlock_irqrestore+0xd/0x30
    [138161.797861] RSP: 0018:ffffb51e813a37f0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff10
    [138161.797865] RAX: 0000000000000020 RBX: 000000000000fc00 RCX: 000000000000000a
    [138161.797867] RDX: 0000000000000005 RSI: 0000000000000282 RDI: 0000000000000282
    [138161.797869] RBP: ffff9b9d54471540 R08: 0000000000000000 R09: 00000000000008a0
    [138161.797871] R10: 00000000000001d8 R11: 00000000000001f0 R12: 0000000000000042
    [138161.797873] R13: 0000000000000000 R14: 0000000000008000 R15: ffff9b9d54471600
    [138161.797877] FS:  00007f2ac985c740(0000) GS:ffff9b9d5ec00000(0000) knlGS:0000000000000000
    [138161.797879] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    [138161.797881] CR2: 00002eafdf54d010 CR3: 0000000212b77000 CR4: 00000000000406f0
    [138161.797884] Call Trace:
    [138161.797896]  ? rtl8723be_phy_query_rf_reg+0x88/0xc0 [rtl8723be]
    [138161.797904]  ? rtl8723be_dm_check_txpower_tracking+0x1d3/0x590 [rtl8723be]
    [138161.797912]  ? rtl8723be_hw_init+0x13be/0x1920 [rtl8723be]
    [138161.797920]  ? rtl_ps_enable_nic+0x36/0xb0 [rtlwifi]
    [138161.797925]  ? rtl8723be_phy_set_rf_power_state+0x467/0x530 [rtl8723be]
    [138161.797932]  ? rtl_ps_set_rf_state+0xdf/0x180 [rtlwifi]
    [138161.797938]  ? _rtl_ps_inactive_ps+0x36/0xb0 [rtlwifi]
    [138161.797944]  ? rtl_ips_nic_on+0x78/0xb0 [rtlwifi]
    [138161.797950]  ? rtl_op_config+0x1d3/0x3f0 [rtlwifi]
    [138161.797972]  ? ieee80211_hw_config+0x64/0x390 [mac80211]
    [138161.797992]  ? __ieee80211_start_scan+0x1f6/0x750 [mac80211]
    [138161.798008]  ? ieee80211_request_scan+0x2b/0x50 [mac80211]
    [138161.798008]  ? nl80211_trigger_scan+0x320/0x7f0 [cfg80211]
    [138161.798008]  ? genl_family_rcv_msg+0x1e0/0x380
    [138161.798008]  ? poll_select_copy_remaining+0x150/0x150
    [138161.798008]  ? genl_rcv_msg+0x47/0x90
    [138161.798008]  ? genl_family_rcv_msg+0x380/0x380
    [138161.798008]  ? netlink_rcv_skb+0xe7/0x120
    [138161.798008]  ? genl_rcv+0x24/0x40
    [138161.798008]  ? netlink_unicast+0x174/0x250
    [138161.798008]  ? netlink_sendmsg+0x30b/0x3b0
    [138161.798008]  ? sock_sendmsg+0x13/0x20
    [138161.798008]  ? ___sys_sendmsg+0x2e3/0x2f0
    [138161.798008]  ? core_sys_select+0x290/0x330
    [138161.798008]  ? _copy_to_user+0x22/0x30
    [138161.798008]  ? sock_getsockopt+0x128/0x8e0
    [138161.798008]  ? unix_ioctl+0x79/0x180
    [138161.798008]  ? sock_do_ioctl+0x20/0x50
    [138161.798008]  ? __sys_sendmsg+0x51/0x90
    [138161.798008]  ? __sys_sendmsg+0x51/0x90
    [138161.798008]  ? entry_SYSCALL_64_fastpath+0x1a/0xa5
    [138161.798008] Code: 44 00 00 c6 07 00 65 ff 0d e1 85 98 44 74 02 f3 c3 e8 81 e1 97 ff c3 0f 1f 80 00 00 00 00 0f 1f 44 00 00 c6 07 00 48 89 f7 57 9d <0f> 1f 44 00 00 65 ff 0d b7 85 98 44 74 02 f3 c3 e8 57 e1 97 ff
    [138173.741009] INFO: rcu_preempt self-detected stall on CPU
    [138173.741009]     0-...: (1 GPs behind) idle=f0a/140000000000001/0 softirq=5853260/5853260 fqs=14995
    [138173.741009]      (t=60000 jiffies g=2920663 c=2920662 q=143)
    [138173.741009] NMI backtrace for cpu 0
    [138173.741009] CPU: 0 PID: 1772 Comm: wpa_supplicant Tainted: G           O L  4.13.8_1 #1
    [138173.741009] Hardware name: LENOVO 20DE001PUS/20DE001PUS, BIOS HTET39WW (1.11 ) 12/19/2014
    [138173.741009] Call Trace:
    [138173.741009]  <IRQ>
    [138173.741009]  ? dump_stack+0x5c/0x85
    [138173.741009]  ? nmi_cpu_backtrace+0xb3/0xc0
    [138173.741009]  ? irq_force_complete_move+0xf0/0xf0
    [138173.741009]  ? nmi_trigger_cpumask_backtrace+0x9f/0xd0
    [138173.741009]  ? rcu_dump_cpu_stacks+0x9c/0xdf
    [138173.741009]  ? rcu_check_callbacks+0x8ff/0x9f0
    [138173.741009]  ? timekeeping_update+0xc8/0x110
    [138173.741009]  ? update_wall_time+0x42c/0x710
    [138173.741009]  ? tick_sched_handle.isra.5+0x60/0x60
    [138173.741009]  ? update_process_times+0x28/0x50
    [138173.741009]  ? tick_sched_handle.isra.5+0x20/0x60
    [138173.741009]  ? tick_sched_timer+0x38/0x80
    [138173.741009]  ? __hrtimer_run_queues+0xec/0x280
    [138173.741009]  ? hrtimer_interrupt+0xab/0x200
    [138173.741009]  ? smp_apic_timer_interrupt+0x34/0x50
    [138173.741009]  ? apic_timer_interrupt+0x82/0x90
    [138173.741009]  </IRQ>
    [138173.741009]  ? _raw_spin_unlock_irqrestore+0xd/0x30
    [138173.741009]  ? rtl8723be_phy_query_rf_reg+0x88/0xc0 [rtl8723be]
    [138173.741009]  ? rtl8723be_dm_check_txpower_tracking+0x1d3/0x590 [rtl8723be]
    [138173.741009]  ? rtl8723be_hw_init+0x13be/0x1920 [rtl8723be]
    [138173.741009]  ? rtl_ps_enable_nic+0x36/0xb0 [rtlwifi]
    [138173.741009]  ? rtl8723be_phy_set_rf_power_state+0x467/0x530 [rtl8723be]
    [138173.741009]  ? rtl_ps_set_rf_state+0xdf/0x180 [rtlwifi]
    [138173.741009]  ? _rtl_ps_inactive_ps+0x36/0xb0 [rtlwifi]
    [138173.741009]  ? rtl_ips_nic_on+0x78/0xb0 [rtlwifi]
    [138173.741009]  ? rtl_op_config+0x1d3/0x3f0 [rtlwifi]
    [138173.741009]  ? ieee80211_hw_config+0x64/0x390 [mac80211]
    [138173.741009]  ? __ieee80211_start_scan+0x1f6/0x750 [mac80211]
    [138173.741009]  ? ieee80211_request_scan+0x2b/0x50 [mac80211]
    [138173.741009]  ? nl80211_trigger_scan+0x320/0x7f0 [cfg80211]
    [138173.741009]  ? genl_family_rcv_msg+0x1e0/0x380
    [138173.741009]  ? poll_select_copy_remaining+0x150/0x150
    [138173.741009]  ? genl_rcv_msg+0x47/0x90
    [138173.741009]  ? genl_family_rcv_msg+0x380/0x380
    [138173.741009]  ? netlink_rcv_skb+0xe7/0x120
    [138173.741009]  ? genl_rcv+0x24/0x40
    [138173.741009]  ? netlink_unicast+0x174/0x250
    [138173.741009]  ? netlink_sendmsg+0x30b/0x3b0
    [138173.741009]  ? sock_sendmsg+0x13/0x20
    [138173.741009]  ? ___sys_sendmsg+0x2e3/0x2f0
    [138173.741009]  ? core_sys_select+0x290/0x330
    [138173.741009]  ? _copy_to_user+0x22/0x30
    [138173.741009]  ? sock_getsockopt+0x128/0x8e0
    [138173.741009]  ? unix_ioctl+0x79/0x180
    [138173.741009]  ? sock_do_ioctl+0x20/0x50
    [138173.741009]  ? __sys_sendmsg+0x51/0x90
    [138173.741009]  ? __sys_sendmsg+0x51/0x90
    [138173.741009]  ? entry_SYSCALL_64_fastpath+0x1a/0xa5

I run wpa_supplicant v2.6 on Void Linux.


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