Backtrace

WARNING: CPU: 2 PID: 1 at lib/percpu-refcount.c:160 percpu_ref_switch_to_atomic_rcu+0x119/0x120
Modules linked in: usblp snd_seq_dummy xt_nat veth thunderbolt uinput rfcomm nf_conntrack_netlink xt_addrtype br_netfilter overlay xt_CHECKSUM xt_MASQUERADE nf_nat_tftp nf_conntrack_tftp tun bridge stp llc nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t_REJECT nf_reject_ipv6 ip6t_rpfilter ipt_REJECT nf_reject_ipv4 xt_conntrack 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 libcrc32c ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter cmac bnep sunrpc squashfs vfat zstd_decompress fat loop snd_hda_codec_hdmi snd_sof_pci snd_sof_intel_byt snd_sof_intel_ipc snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_xtensa_dsp intel_rapl_msr snd_sof_intel_hda intel_rapl_common snd_sof snd_soc_skl snd_soc_sst_ipc snd_soc_sst_dsp snd_hda_ext_core x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_realtek
 snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core snd_hda_codec_generic coretemp ledtrig_audio snd_compress kvm_intel ac97_bus iTCO_wdt iTCO_vendor_support mei_hdcp snd_pcm_dmaengine snd_usb_audio snd_hda_intel kvm snd_intel_dspcfg snd_hda_codec snd_hda_core snd_usbmidi_lib iwlmvm uvcvideo snd_rawmidi snd_hwdep irqbypass intel_cstate snd_seq intel_uncore snd_seq_device mac80211 intel_rapl_perf pcspkr snd_pcm libarc4 videobuf2_vmalloc videobuf2_memops intel_wmi_thunderbolt videobuf2_v4l2 btusb wmi_bmof videobuf2_common snd_timer i2c_i801 btrtl iwlwifi videodev snd btbcm btintel soundcore bluetooth cfg80211 mc joydev mei_me ecdh_generic ecc mei rfkill intel_pch_thermal acpi_pad acpi_tad ip_tables dm_crypt i915 i2c_algo_bit cec drm_kms_helper rtsx_pci_sdmmc mmc_core nvme crct10dif_pclmul crc32_pclmul crc32c_intel e1000e ghash_clmulni_intel drm nvme_core rtsx_pci wmi video pinctrl_cannonlake pinctrl_intel fuse
CPU: 2 PID: 1 Comm: systemd Not tainted 5.6.16-200.fc31.x86_64 #1
Hardware name: Intel(R) Client Systems NUC8i7BEH/NUC8BEB, BIOS BECFL357.86A.0064.2019.0213.1122 02/13/2019
RIP: 0010:percpu_ref_switch_to_atomic_rcu+0x119/0x120
Code: eb af 80 3d ca 37 31 01 00 0f 85 63 ff ff ff 48 8b 55 d8 48 8b 75 e8 48 c7 c7 78 1c 3d b0 c6 05 ae 37 31 01 01 e8 29 cf bd ff <0f> 0b e9 41 ff ff ff 41 54 49 89 f4 55 48 89 fd 53 48 83 ec 28 48
RSP: 0000:ffffa21280168ea8 EFLAGS: 00010296
RAX: 0000000000000046 RBX: 7ffffffffffffffd RCX: 0000000000000000
RDX: 0000000000000046 RSI: ffffffffb1277486 RDI: 0000000000000246
RBP: ffff8cc107a18920 R08: 00000aba1c42e2dd R09: 0000000000000046
R10: 0000000000000000 R11: 00000000b127744b R12: 0000355121e36a20
R13: 0000000000000000 R14: ffff8cc15a9c2700 R15: ffff8cc15dcabc50
FS:  00007f9e96b555c0(0000) GS:ffff8cc15dc80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555f2f67d460 CR3: 0000000850cdc005 CR4: 00000000003606e0
Call Trace:
 <IRQ>
 rcu_do_batch+0x18f/0x3a0
 rcu_core+0x189/0x2d0
 __do_softirq+0xee/0x2ff
 irq_exit+0xe9/0xf0
 smp_apic_timer_interrupt+0x76/0x130
 apic_timer_interrupt+0xf/0x20
 </IRQ>
RIP: 0033:0x7f9e978af78c
Code: 00 31 ff 48 8d 35 11 07 0c 00 e8 7f be f1 ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 f3 0f 1e fa 41 56 41 55 41 54 55 53 <48> 83 ec 10 48 85 ff 0f 84 87 00 00 00 49 89 f4 48 85 f6 0f 84 a3
RSP: 002b:00007fffd1a17a00 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000555f2f772d50 RCX: 0000000000000001
RDX: 0000000000000002 RSI: 00007fffd1a17a48 RDI: 00007fffd1a17a50
RBP: 0000555f2d5effb3 R08: 0000000000000006 R09: 0000555f2f711248
R10: 0000555f2f711249 R11: 00007f9e97c18a40 R12: 00007fffd1a17a48
R13: 00007fffd1a17a50 R14: 0000555f2f6e6700 R15: 00007fffd1a17b08