Backtrace

WARNING: CPU: 2 PID: 1589 at /var/lib/dkms/nvidia/450.80.02/build/nvidia/nv.c:4630 nvidia_dev_put+0x44/0x50 [nvidia]
Modules linked in: 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 tun iptable_security bridge nf_conntrack stp llc nf_defrag_ipv6 nf_defrag_ipv4 rfkill ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter sunrpc squashfs loop coretemp ucsi_ccg typec_ucsi iTCO_wdt kvm_intel typec intel_pmc_bxt ppdev gpio_ich iTCO_vendor_support kvm irqbypass pcspkr snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi ledtrig_audio snd_hda_intel snd_intel_dspcfg i2c_i801 snd_hda_codec i2c_smbus snd_hda_core snd_hwdep snd_seq snd_seq_device snd_pcm lpc_ich snd_timer snd i2c_nvidia_gpu parport_pc soundcore parport acpi_cpufreq binfmt_misc ip_tables nvidia_drm(POE) nvidia_modeset(POE)
 nvidia(POE) drm_kms_helper serio_raw cec firewire_ohci ata_generic drm pata_acpi firewire_core pata_it8213 crc_itu_t r8169 fuse
CPU: 2 PID: 1589 Comm: Xorg Tainted: P           OE     5.8.18-100.fc31.x86_64 #1
Hardware name: Gigabyte Technology Co., Ltd. EP43-DS3/EP43-DS3, BIOS F9 09/24/2008
RIP: 0010:nvidia_dev_put+0x44/0x50 [nvidia]
Code: 48 89 c7 e8 3e dd ff ff 31 d2 48 89 de 48 89 ef e8 21 9c 7c 00 85 c0 75 11 48 8d bb e0 04 00 00 5b 5d e9 2f 0a bf f4 5b 5d c3 <0f> 0b eb eb 0f 1f 84 00 00 00 00 00 66 66 66 66 90 41 57 41 56 41
RSP: 0018:ffffb7cc80cebd58 EFLAGS: 00010202
RAX: 0000000000000026 RBX: ffff98057346c000 RCX: ffffb7cc80cebcf8
RDX: 0000000000000087 RSI: 0000000000000246 RDI: 0000000000000246
RBP: ffff980547190000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: ffff980547192ef4 R12: ffff98055a3590a0
R13: ffff98054c9cbc08 R14: ffff98054c9cbe70 R15: ffff98055a3595f0
FS:  00007fd945b78f00(0000) GS:ffff98057bd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4ab0001068 CR3: 000000010cace000 CR4: 00000000000006e0
Call Trace:
 nvkms_close_gpu+0x39/0x50 [nvidia_modeset]
 _nv002731kms+0x11d/0x170 [nvidia_modeset]
 ? _nv002544kms+0x8c/0xd0 [nvidia_modeset]
 ? _nv002355kms+0xda/0x1f0 [nvidia_modeset]
 ? _nv002359kms+0x3e0/0x3e0 [nvidia_modeset]
 ? _nv000004kms+0x30b/0x340 [nvidia_modeset]
 ? _copy_from_user+0x2c/0x60
 ? nvKmsIoctl+0x96/0x1d0 [nvidia_modeset]
 ? nvkms_ioctl_common+0x3b/0x80 [nvidia_modeset]
 ? nvkms_ioctl+0xa3/0xe0 [nvidia_modeset]
 ? nvidia_frontend_unlocked_ioctl+0x37/0x50 [nvidia]
 ? ksys_ioctl+0x87/0xc0
 ? __x64_sys_ioctl+0x16/0x20
 ? do_syscall_64+0x4d/0x90
 ? entry_SYSCALL_64_after_hwframe+0x44/0xa9