Backtrace

WARNING: CPU: 10 PID: 4983 at drivers/video/fbdev/core/fbmem.c:1693 do_unregister_framebuffer+0x13/0x110
Modules linked in: binfmt_misc uinput rfcomm xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp tun bridge stp llc nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nf_tables_set nft_chain_nat ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c iptable_mangle iptable_raw iptable_security ip_set nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter cmac bnep sunrpc vfat fat ucsi_ccg typec_ucsi typec edac_mce_amd kvm_amd joydev kvm irqbypass crct10dif_pclmul crc32_pclmul iwlmvm ghash_clmulni_intel wmi_bmof mac80211 pcspkr libarc4 iwlwifi snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi cfg80211 snd_hda_intel snd_intel_dspcfg ccp snd_hda_codec snd_hda_core i2c_nvidia_gpu k10temp sp5100_tco i2c_piix4 snd_usb_audio btusb
 snd_usbmidi_lib snd_hwdep btrtl snd_rawmidi btbcm btintel snd_seq bluetooth snd_seq_device snd_pcm snd_timer snd soundcore ecdh_generic mc rfkill ecc gpio_amdpt gpio_generic acpi_cpufreq vfio_iommu_type1 vfio ip_tables hid_logitech_hidpp nouveau video mxm_wmi i2c_algo_bit drm_kms_helper crc32c_intel ttm drm hid_logitech_dj r8169 nvme uas usb_storage nvme_core wmi pinctrl_amd fuse
CPU: 10 PID: 4983 Comm: vfio-startup.sh Not tainted 5.6.6-300.fc32.x86_64 #1
Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./B450M Pro4, BIOS P1.60 11/05/2018
RIP: 0010:do_unregister_framebuffer+0x13/0x110
Code: 85 c0 74 05 e9 7e 97 87 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1f 44 00 00 41 54 55 8b 77 04 48 89 fd 83 fe 1f 76 63 <0f> 0b 48 8b bd f0 01 00 00 48 85 ff 74 0d f6 85 0c 02 00 00 01 0f
RSP: 0018:ffffaaee8372bdd0 EFLAGS: 00010206
RAX: 0000000000000000 RBX: ffff966fca0a1c00 RCX: 0000000000000000
RDX: ffff966fc9b50000 RSI: 0000000000000000 RDI: ffff966fcc7e2c00
RBP: ffff966fcc7e2c00 R08: ffff966fc609d248 R09: 0000000000000000
R10: 0000000000000000 R11: ffff966fcd068d01 R12: 0000000000000000
R13: ffffffffb475bfa8 R14: ffffaaee8372bf10 R15: ffff966fb532a020
FS:  00007fe2cc79e740(0000) GS:ffff966fcee80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe2cc965448 CR3: 00000002f36e8000 CR4: 00000000003406e0
Call Trace:
 unregister_framebuffer+0x1d/0x30
 efifb_remove+0x19/0x40
 platform_drv_remove+0x24/0x40
 __device_release_driver+0x15c/0x210
 device_driver_detach+0x3c/0xa0
 unbind_store+0x113/0x130
 kernfs_fop_write+0xce/0x1b0
 vfs_write+0xb6/0x1a0
 ksys_write+0x4f/0xc0
 do_syscall_64+0x5b/0xf0
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fe2cc8935e7
Code: 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
RSP: 002b:00007ffd5f1a0a38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007fe2cc8935e7
RDX: 0000000000000012 RSI: 000055612b58aeb0 RDI: 0000000000000001
RBP: 000055612b58aeb0 R08: 000000000000000a R09: 0000000000000011
R10: 000055612b58c9d0 R11: 0000000000000246 R12: 0000000000000012
R13: 00007fe2cc965500 R14: 0000000000000012 R15: 00007fe2cc965700