Backtrace

WARNING: CPU: 1 PID: 1175411 at drivers/pci/probe.c:1096 pci_add_new_bus+0x41b/0x470
Modules linked in: xt_nat veth nf_conntrack_netlink xt_addrtype br_netfilter overlay snd_seq_dummy snd_hrtimer 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 nft_chain_nat nf_tables ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter cmac bnep sunrpc vfat fat squashfs loop snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio intel_rapl_msr iwlmvm snd_hda_intel snd_intel_dspcfg intel_rapl_common snd_hda_codec x86_pkg_temp_thermal intel_powerclamp mac80211 iTCO_wdt intel_pmc_bxt snd_usb_audio iTCO_vendor_support
 mei_hdcp coretemp kvm_intel snd_hda_core snd_usbmidi_lib ee1004 uvcvideo snd_hwdep snd_rawmidi videobuf2_vmalloc videobuf2_memops snd_seq libarc4 btusb btrtl videobuf2_v4l2 btbcm btintel snd_seq_device snd_pcm iwlwifi kvm videobuf2_common bluetooth irqbypass rapl cfg80211 videodev snd_timer intel_cstate intel_uncore intel_wmi_thunderbolt snd ecdh_generic mc pcspkr i2c_i801 joydev rfkill soundcore mei_me i2c_smbus ir_rc6_decoder ecc mei intel_pch_thermal rc_rc6_mce nuvoton_cir acpi_pad binfmt_misc zram ip_tables dm_crypt i915 crct10dif_pclmul i2c_algo_bit e1000e crc32_pclmul drm_kms_helper crc32c_intel ghash_clmulni_intel cec sdhci_pci drm cqhci sdhci mmc_core wmi video fuse i2c_dev
CPU: 1 PID: 1175411 Comm: kworker/u16:4 Tainted: G          I       5.9.11-200.fc33.x86_64 #1
Hardware name:  /NUC6i7KYB, BIOS KYSKLi70.86A.0037.2016.0603.1032 06/03/2016
Workqueue: kacpi_hotplug acpi_hotplug_work_fn
RIP: 0010:pci_add_new_bus+0x41b/0x470
Code: 85 d2 74 3e 83 c0 02 48 98 0f b6 80 88 e7 0c 85 eb 0b 83 fa 01 19 c0 83 e0 03 83 c0 0c 41 88 84 24 e3 00 00 00 e9 46 fd ff ff <0f> 0b e9 2b fe ff ff b8 02 00 00 00 eb c8 b8 02 00 00 00 e9 01 fd
RSP: 0018:ffffa93f475dbc08 EFLAGS: 00010282
RAX: 00000000ffffffef RBX: ffff98ae35627000 RCX: 0000000000259025
RDX: 0000000000259024 RSI: 8acc933af77780d8 RDI: ffff98b0b772c958
RBP: ffff98b0b772e800 R08: ffff98ad7805e248 R09: ffff98b4db986858
R10: 0000000000000030 R11: ffff98ae4ae3fd98 R12: ffff98b0b772c800
R13: 0000000000000000 R14: ffff98b0b772c920 R15: ffff98ae35627000
FS:  0000000000000000(0000) GS:ffff98b4dec40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f43ec64ef90 CR3: 00000003d1a0e005 CR4: 00000000003706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 pci_scan_bridge_extend+0x5e3/0x620
 pci_scan_child_bus_extend+0xcc/0x2a0
 pci_scan_bridge_extend+0x578/0x620
 enable_slot+0x1b3/0x430
 acpiphp_check_bridge.part.0+0x117/0x140
 acpiphp_hotplug_notify+0x170/0x280
 ? acpiphp_post_dock_fixup+0xc0/0xc0
 acpi_device_hotplug+0x8e/0x390
 acpi_hotplug_work_fn+0x3d/0x50
 process_one_work+0x1b4/0x370
 worker_thread+0x53/0x3e0
 ? process_one_work+0x370/0x370
 kthread+0x11b/0x140
 ? __kthread_bind_mask+0x60/0x60
 ret_from_fork+0x22/0x30