Backtrace

WARNING: CPU: 5 PID: 76 at drivers/net/wireless/intel/iwlwifi/pcie/trans.c:2117 __iwl_trans_pcie_grab_nic_access+0x1ec/0x220 [iwlwifi]
Modules linked in: bnep btusb btrtl btbcm btintel btmtk bluetooth ecdh_generic snd_seq_dummy snd_hrtimer 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 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 nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) sunrpc vfat fat uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mc intel_rapl_msr intel_rapl_common iwlmvm x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_codec_realtek mac80211 snd_soc_rt5640 snd_hda_codec_hdmi snd_hda_codec_generic snd_soc_rl6231 snd_soc_core snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec snd_compress snd_hda_core ac97_bus kvm_intel snd_hwdep snd_pcm_dmaengine kvm snd_seq iTCO_wdt libarc4 irqbypass
 intel_pmc_bxt dell_laptop snd_seq_device mei_wdt iTCO_vendor_support snd_pcm iwlwifi at24 mei_hdcp mei_pxp rapl ppdev iwlmei snd_timer dell_smm_hwmon snd intel_cstate cfg80211 soundcore intel_uncore i2c_i801 joydev mei_me i2c_smbus mei lpc_ich parport_pc parport dell_wmi ledtrig_audio dell_smbios dcdbas dell_rbtn dell_wmi_descriptor dell_smo8800 rfkill sparse_keymap pcspkr wmi_bmof zram ip_tables hid_logitech_hidpp i915 nouveau crct10dif_pclmul crc32_pclmul sdhci_pci crc32c_intel cqhci ghash_clmulni_intel sdhci e1000e serio_raw mmc_core drm_ttm_helper mxm_wmi hid_logitech_dj ttm wmi video fuse ipmi_devintf ipmi_msghandler
CPU: 5 PID: 76 Comm: kworker/5:1 Tainted: G           OE     5.17.11-100.fc34.x86_64 #1
Hardware name: Dell Inc. Precision M6800/0F5HF3, BIOS A13 01/29/2015
Workqueue: events cfg80211_rfkill_block_work [cfg80211]
RIP: 0010:__iwl_trans_pcie_grab_nic_access+0x1ec/0x220 [iwlwifi]
Code: 48 89 ef e8 56 b6 fe ff 4c 89 f7 e8 be a8 29 cb e9 e6 fe ff ff 89 c6 48 c7 c7 58 02 ac c0 c6 05 99 b2 03 00 01 e8 e4 af 21 cb <0f> 0b e9 01 ff ff ff 48 8b 7d 40 48 c7 c2 c0 02 ac c0 31 f6 e8 5b
RSP: 0018:ffffc019003d7bd8 EFLAGS: 00010296
RAX: 000000000000003d RBX: 00000000000003d8 RCX: 0000000000000000
RDX: 0000000000000202 RSI: ffffffff8c665e75 RDI: 00000000ffffffff
RBP: ffff9a7c10320028 R08: 0000000000000000 R09: ffffc019003d7a18
R10: ffffc019003d7a10 R11: ffffffff8cf45588 R12: 0000000000000001
R13: 0000000000000011 R14: ffff9a7c10322944 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff9a830eb40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056552986c478 CR3: 0000000103de4004 CR4: 00000000001706e0
Call Trace:
 <TASK>
 iwl_trans_pcie_grab_nic_access+0x1c/0x40 [iwlwifi]
 iwl_set_bits_prph+0x21/0x80 [iwlwifi]
 iwl_fw_dbg_stop_restart_recording.part.0+0x243/0x260 [iwlwifi]
 ? __cancel_work_timer+0xe2/0x160
 iwl_mvm_stop_device+0x36/0x80 [iwlmvm]
 __iwl_mvm_mac_stop+0x5c/0x110 [iwlmvm]
 iwl_mvm_mac_stop+0x96/0xd0 [iwlmvm]
 drv_stop+0x30/0x100 [mac80211]
 ieee80211_do_stop+0x630/0x840 [mac80211]
 ieee80211_stop+0x3d/0x170 [mac80211]
 __dev_close_many+0x8e/0xf0
 dev_close_many+0x7b/0x120
 dev_close+0x56/0x80
 cfg80211_shutdown_all_interfaces+0x49/0xe0 [cfg80211]
 cfg80211_rfkill_block_work+0x1a/0x20 [cfg80211]
 process_one_work+0x1e5/0x3b0
 ? rescuer_thread+0x370/0x370
 worker_thread+0x50/0x3a0
 ? rescuer_thread+0x370/0x370
 kthread+0xe8/0x110
 ? kthread_complete_and_exit+0x20/0x20
 ret_from_fork+0x22/0x30
 </TASK>