Backtrace

WARNING: CPU: 0 PID: 0 at kernel/workqueue.c:1474 __queue_work+0x33f/0x3e0
Modules linked in: cdc_acm uinput rfcomm ccm 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 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 tun bridge stp llc ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter cmac bnep sunrpc uvcvideo snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common rtl8723ae snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg btcoexist snd_hda_codec rtl8723_common videodev mc snd_hda_core rtl_pci rtlwifi snd_hwdep intel_rapl_msr snd_seq snd_seq_device snd_pcm intel_rapl_common snd_timer x86_pkg_temp_thermal intel_powerclamp mac80211 snd cfg80211 coretemp kvm_intel libarc4
 kvm btusb btrtl btbcm btintel bluetooth soundcore irqbypass ecdh_generic rapl rfkill ecc iTCO_wdt intel_pmc_bxt iTCO_vendor_support pcspkr intel_cstate mei_hdcp at24 intel_uncore joydev wmi_bmof mei_me mei lpc_ich i2c_i801 i2c_smbus ip_tables i915 nouveau rtsx_pci_sdmmc mmc_core hid_logitech_hidpp crct10dif_pclmul crc32_pclmul crc32c_intel mxm_wmi ghash_clmulni_intel ttm i2c_algo_bit drm_kms_helper cec serio_raw drm alx rtsx_pci hid_logitech_dj mdio wmi video fuse
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.8.18-100.fc31.x86_64 #1
Hardware name: EXPER ULTRABOOK-Q5V/ULTRABOOK-Q5V, BIOS ER152 11/05/2013
RIP: 0010:__queue_work+0x33f/0x3e0
Code: e2 f1 45 a9 00 01 ff 00 75 0f 65 48 8b 3c 25 c0 7b 01 00 f6 47 24 20 75 25 0f 0b 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f c3 <0f> 0b e9 fe fd ff ff 41 83 cd 02 48 8d 53 60 e9 e3 fd ff ff e8 a8
RSP: 0018:ffffbcd6c0003e90 EFLAGS: 00010093
RAX: ffff9b0ed281c798 RBX: ffff9b109722f700 RCX: 0000000000000000
RDX: ffff9b0ed281c790 RSI: 0000000000000000 RDI: ffff9b1097229c40
RBP: ffff9b0ed281c790 R08: ffff9b1097229c40 R09: ffff9b1095c00ff8
R10: ffff9b1095c01020 R11: 0000000000000000 R12: 0000000000000043
R13: 0000000000000000 R14: 0000000000002000 R15: ffff9b1096018e00
FS:  0000000000000000(0000) GS:ffff9b1097200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000032a6e2f5f000 CR3: 0000000079a0a004 CR4: 00000000001606f0
Call Trace:
 <IRQ>
 queue_work_on+0x36/0x40
 __usb_hcd_giveback_urb+0x6f/0x120
 usb_giveback_urb_bh+0xa0/0xf0
 tasklet_action_common.isra.0+0x5b/0x100
 __do_softirq+0xee/0x2ff
 ? handle_irq_event_percpu+0x4f/0x60
 asm_call_irq_on_stack+0x12/0x20
 </IRQ>
 do_softirq_own_stack+0x37/0x40
 irq_exit_rcu+0xd8/0xe0
 common_interrupt+0x75/0x150
 asm_common_interrupt+0x1e/0x40
RIP: 0010:cpuidle_enter_state+0xc9/0x3e0
Code: e8 0c f5 7d ff 80 7c 24 0f 00 74 17 9c 58 0f 1f 44 00 00 f6 c4 02 0f 85 e5 02 00 00 31 ff e8 4e 4b 84 ff fb 66 0f 1f 44 00 00 <45> 85 ed 0f 88 3b 02 00 00 49 63 d5 4c 2b 64 24 10 48 8d 04 52 48
RSP: 0018:ffffffffbba03e48 EFLAGS: 00000246
RAX: ffff9b109722a2c0 RBX: ffff9b1097235000 RCX: 000000000000001f
RDX: 0000000000000000 RSI: 000000003157b509 RDI: 0000000000000000
RBP: ffffffffbbb6f540 R08: 0000f91aa6ef226a R09: 000000007fffffff
R10: 0000000000000002 R11: ffff9b10972290e4 R12: 0000f91aa6ef226a
R13: 0000000000000001 R14: 0000000000000001 R15: ffffffffbba14840
 ? cpuidle_enter_state+0xa4/0x3e0
 cpuidle_enter+0x29/0x40
 do_idle+0x1c0/0x260
 cpu_startup_entry+0x19/0x20
 start_kernel+0x80d/0x81d
 ? apply_microcode_early.cold+0xc/0x2b
 secondary_startup_64+0xb6/0xc0