Backtrace

WARNING: CPU: 1 PID: 0 at kernel/workqueue.c:1474 __queue_work+0x33f/0x3e0
Modules linked in: cdc_acm uinput rfcomm bnep btusb btrtl btbcm btintel bluetooth ecdh_generic ecc rndis_host cdc_ether usbnet mii usblp binfmt_misc vfat fat xt_CHECKSUM nf_nat_tftp nf_conntrack_tftp tun bridge stp llc md4 cmac nls_utf8 cifs libarc4 dns_resolver fscache libdes nf_nat_ftp xt_MASQUERADE nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_ftp xt_CT rfkill 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 ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter sunrpc snd_hda_codec_analog snd_hda_codec_generic ledtrig_audio pcspkr snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep coretemp joydev snd_seq kvm_intel iTCO_wdt snd_seq_device snd_pcm intel_pmc_bxt
 iTCO_vendor_support snd_timer snd kvm irqbypass ppdev dcdbas at24 soundcore i2c_i801 i2c_smbus parport_pc lpc_ich parport acpi_cpufreq ip_tables nouveau video mxm_wmi wmi i2c_algo_bit drm_kms_helper cec ttm drm serio_raw uas e1000e usb_storage fuse
CPU: 1 PID: 0 Comm: swapper/1 Tainted: G        W         5.8.18-100.fc31.x86_64 #1
Hardware name: Dell Inc. OptiPlex 755                 /0PU052, BIOS A22 06/11/2012
RIP: 0010:__queue_work+0x33f/0x3e0
Code: e2 f1 66 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:ffffb402000e4e90 EFLAGS: 00010093
RAX: ffff9fb4e0386798 RBX: ffff9fb5f3e6f700 RCX: 0000000000000000
RDX: ffff9fb4e0386790 RSI: 0000000000000002 RDI: ffff9fb5f3e69c40
RBP: ffff9fb4e0386790 R08: ffff9fb5f3e69c40 R09: ffff9fb5f3001240
R10: ffff9fb5f3001278 R11: 0000000000000000 R12: 000000000000002d
R13: 0000000000000001 R14: 0000000000002000 R15: ffff9fb5f3418e00
FS:  0000000000000000(0000) GS:ffff9fb5f3e40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000558084893660 CR3: 00000000b5e3e000 CR4: 00000000000006e0
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
 ? x2apic_cluster_probe.cold+0x11/0x11
 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: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 66 66 66 66 66 90 65 48 8b 04 25 c0 7b 01 00 f0
RSP: 0018:ffffb4020007fec8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff9fb5f3e5daa0
RBP: 0000000000000001 R08: 00000066a171aa2e R09: 0000000000000000
R10: 000000000000013c R11: 000000000000000c R12: ffff9fb5f36ba580
R13: 0000000000000000 R14: 0000000000000000 R15: ffff9fb5f36ba580
 do_idle+0x1de/0x260
 cpu_startup_entry+0x19/0x20
 start_secondary+0x144/0x170
 secondary_startup_64+0xb6/0xc0