Kernel "Oops" after page fault while trying to configure wifi in iwlwifi

[Peter Ivanov]

Ubuntu release
$ lsb_release -rd
Description: Ubuntu 20.04.4 LTS
Release: 20.04

possible pkgname
$ apt-cache policy iwlwifi-modules
iwlwifi-modules:
  Installed: (none)
  Candidate: (none)
  Version table:

Recently (last week) I was running 5.13.0-39-generic without problems. After an update from Canonical the system became unstable, freezing during boot, or freezing while running a normal app - basically unusable. Looking at the GRUB menus I notice that the default version of Ubuntu I was now running was 5.13.0-40-generic. Looking through the logs I found in kern.log the following kernel Oops (see below at Apr 25 10:52:24 gamer kernel: [ 2.844018]).

This does not happen with the -39 kernel. It also does not happen if I disable my Bluetooth/wifi hardware on the motherboard in the BIOS. I am now running the -40 kernel with Bluetooth/wifi disabled.

I have included some context before and after.

Apr 25 10:52:24 gamer kernel: [ 2.805159] cfg80211: Loading compiled-in X.509 certificates for regulatory database
Apr 25 10:52:24 gamer kernel: [ 2.805281] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
Apr 25 10:52:24 gamer kernel: [ 2.805489] asus_wmi: SFUN value: 0x1
Apr 25 10:52:24 gamer kernel: [ 2.805492] asus-nb-wmi asus-nb-wmi: Detected ATK, not ASUSWMI, use DSTS
Apr 25 10:52:24 gamer kernel: [ 2.805494] asus-nb-wmi asus-nb-wmi: Detected ATK, enable event queue
Apr 25 10:52:24 gamer kernel: [ 2.805495] asus_wmi: SFUN value: 0x1
Apr 25 10:52:24 gamer kernel: [ 2.805497] asus_wmi: Failed to get WMI notify code: AE_NOT_FOUND
Apr 25 10:52:24 gamer kernel: [ 2.805498] eeepc-wmi eeepc-wmi: Detected ATK, not ASUSWMI, use DSTS
Apr 25 10:52:24 gamer kernel: [ 2.805498] asus_wmi: Failed to get event during flush: -5
Apr 25 10:52:24 gamer kernel: [ 2.805652] ee1004 0-0053: 512 byte EE1004-compliant SPD EEPROM, read-only
Apr 25 10:52:24 gamer kernel: [ 2.806274] input: Eee PC WMI hotkeys as /devices/platform/eeepc-wmi/input/input3
Apr 25 10:52:24 gamer kernel: [ 2.806329] input: Asus WMI hotkeys as /devices/platform/asus-nb-wmi/input/input4
Apr 25 10:52:24 gamer kernel: [ 2.806993] mei_me 0000:00:16.0: enabling device (0000 -> 0002)
Apr 25 10:52:24 gamer kernel: [ 2.809037] RAPL PMU: API unit is 2^-32 Joules, 2 fixed counters, 655360 ms ovfl timer
Apr 25 10:52:24 gamer kernel: [ 2.809039] RAPL PMU: hw unit of domain pp0-core 2^-14 Joules
Apr 25 10:52:24 gamer kernel: [ 2.809040] RAPL PMU: hw unit of domain package 2^-14 Joules
Apr 25 10:52:24 gamer kernel: [ 2.810239] cryptd: max_cpu_qlen set to 1000
Apr 25 10:52:24 gamer kernel: [ 2.814298] AVX2 version of gcm_enc/dec engaged.
Apr 25 10:52:24 gamer kernel: [ 2.814370] AES CTR mode by8 optimization enabled
Apr 25 10:52:24 gamer kernel: [ 2.815737] pstore: Using crash dump compression: deflate
Apr 25 10:52:24 gamer kernel: [ 2.815754] pstore: Registered efi as persistent store backend
Apr 25 10:52:24 gamer kernel: [ 2.823953] usb 1-2: New USB device found, idVendor=0b05, idProduct=1a16, bcdDevice= 0.08
Apr 25 10:52:24 gamer kernel: [ 2.823960] usb 1-2: New USB device strings: Mfr=3, Product=1, SerialNumber=0
Apr 25 10:52:24 gamer kernel: [ 2.823961] usb 1-2: Product: USB Audio
Apr 25 10:52:24 gamer kernel: [ 2.823963] usb 1-2: Manufacturer: Generic
Apr 25 10:52:24 gamer kernel: [ 2.838171] Intel(R) Wireless WiFi driver for Linux
Apr 25 10:52:24 gamer kernel: [ 2.838218] iwlwifi 0000:00:14.3: enabling device (0000 -> 0002)
Apr 25 10:52:24 gamer kernel: [ 2.840269] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-63.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840353] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-62.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840415] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-61.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840430] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-60.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840696] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-59.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840709] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-58.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840719] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-57.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840730] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-56.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840797] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-55.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840808] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-54.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840817] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-53.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840825] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-52.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840833] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-51.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840842] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-50.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840852] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-49.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840860] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-48.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840869] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-47.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840879] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-46.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840887] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-45.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840899] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-44.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840908] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-43.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840917] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-42.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840927] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-41.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840936] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-40.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840947] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-so-a0-hr-b0-39.ucode failed with error -2
Apr 25 10:52:24 gamer kernel: [ 2.840949] iwlwifi 0000:00:14.3: no suitable firmware found!
Apr 25 10:52:24 gamer kernel: [ 2.840952] iwlwifi 0000:00:14.3: minimum version required: iwlwifi-so-a0-hr-b0-39
Apr 25 10:52:24 gamer kernel: [ 2.840954] iwlwifi 0000:00:14.3: maximum version supported: iwlwifi-so-a0-hr-b0-63
Apr 25 10:52:24 gamer kernel: [ 2.840955] iwlwifi 0000:00:14.3: check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
Apr 25 10:52:24 gamer kernel: [ 2.843522] snd_hda_intel 0000:00:1f.3: enabling device (0000 -> 0002)
Apr 25 10:52:24 gamer kernel: [ 2.844012] BUG: unable to handle page fault for address: ffffdefe22000008
Apr 25 10:52:24 gamer kernel: [ 2.844014] #PF: supervisor read access in kernel mode
Apr 25 10:52:24 gamer kernel: [ 2.844014] #PF: error_code(0x0000) - not-present page
Apr 25 10:52:24 gamer kernel: [ 2.844016] PGD 0 P4D 0
Apr 25 10:52:24 gamer kernel: [ 2.844018] Oops: 0000 [#1] SMP NOPTI
Apr 25 10:52:24 gamer kernel: [ 2.844020] CPU: 12 PID: 364 Comm: kworker/12:1 Not tainted 5.13.0-40-generic #45~20.04.1-Ubuntu
Apr 25 10:52:24 gamer kernel: [ 2.844023] Hardware name: ASUS System Product Name/ROG STRIX Z690-A GAMING WIFI D4, BIOS 0807 12/03/2021
Apr 25 10:52:24 gamer kernel: [ 2.844024] Workqueue: events request_firmware_work_func
Apr 25 10:52:24 gamer kernel: [ 2.844031] RIP: 0010:kfree+0x6a/0x2a0
Apr 25 10:52:24 gamer kernel: [ 2.844037] Code: 80 4d 01 f4 0f 82 37 02 00 00 48 c7 c0 00 00 00 80 48 2b 05 98 1e 3d 01 49 01 c4 49 c1 ec 0c 49 c1 e4 06 4c 03 25 76 1e 3d 01 <49> 8b 44
24 08 48 8d 50 ff a8 01 4c 0f 45 e2 49 8b 54 24 08 48 8d
Apr 25 10:52:24 gamer kernel: [ 2.844039] RSP: 0018:ffffaf8d410c3c98 EFLAGS: 00010286
Apr 25 10:52:24 gamer kernel: [ 2.844040] RAX: 0000641800000000 RBX: ffff9be88e80d1b8 RCX: 0000000000000000
Apr 25 10:52:24 gamer kernel: [ 2.844041] RDX: ffff9be88ffe4980 RSI: ffffffffc1514761 RDI: 0000000000000011
Apr 25 10:52:24 gamer kernel: [ 2.844043] RBP: ffffaf8d410c3cd0 R08: ffff9be880042d00 R09: ffffaf8d410c3b58
Apr 25 10:52:24 gamer kernel: [ 2.844044] R10: ffff9be90ca8bfff R11: 0000000000000000 R12: ffffdefe22000000
Apr 25 10:52:24 gamer kernel: [ 2.844044] R13: ffff9be88e80d2b8 R14: 0000000000000011 R15: 0000000000000000
Apr 25 10:52:24 gamer kernel: [ 2.844046] FS: 0000000000000000(0000) GS:ffff9befdf400000(0000) knlGS:0000000000000000
Apr 25 10:52:24 gamer kernel: [ 2.844047] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Apr 25 10:52:24 gamer kernel: [ 2.844048] CR2: ffffdefe22000008 CR3: 000000010c8ae001 CR4: 0000000000770ee0
Apr 25 10:52:24 gamer kernel: [ 2.844049] PKRU: 55555554
Apr 25 10:52:24 gamer kernel: [ 2.844050] Call Trace:
Apr 25 10:52:24 gamer kernel: [ 2.844051] <TASK>
Apr 25 10:52:24 gamer kernel: [ 2.844053] iwl_dealloc_ucode+0x31/0x120 [iwlwifi]
Apr 25 10:52:24 gamer kernel: [ 2.844077] iwl_req_fw_callback+0x603/0xcf0 [iwlwifi]
Apr 25 10:52:24 gamer kernel: [ 2.844086] ? release_firmware.part.0+0x5b/0x70
Apr 25 10:52:24 gamer kernel: [ 2.844088] ? kfree+0xd8/0x2a0
Apr 25 10:52:24 gamer kernel: [ 2.844090] ? release_firmware.part.0+0x5b/0x70
Apr 25 10:52:24 gamer kernel: [ 2.844091] ? _request_firmware+0x311/0x500
Apr 25 10:52:24 gamer kernel: [ 2.844092] request_firmware_work_func+0x51/0xa0
Apr 25 10:52:24 gamer kernel: [ 2.844094] process_one_work+0x21d/0x3c0
Apr 25 10:52:24 gamer kernel: [ 2.844100] worker_thread+0x4d/0x3f0
Apr 25 10:52:24 gamer kernel: [ 2.844101] ? process_one_work+0x3c0/0x3c0
Apr 25 10:52:24 gamer kernel: [ 2.844103] kthread+0x128/0x150
Apr 25 10:52:24 gamer kernel: [ 2.844105] ? set_kthread_struct+0x40/0x40
Apr 25 10:52:24 gamer kernel: [ 2.844106] ret_from_fork+0x1f/0x30
Apr 25 10:52:24 gamer kernel: [ 2.844112] </TASK>
Apr 25 10:52:24 gamer kernel: [ 2.844112] Modules linked in: snd_hda_intel(+) snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec iwlwifi snd_hda_core snd_hwdep nls_iso8859_1 kvm_intel(+)
 mei_hdcp snd_pcm kvm snd_seq_midi snd_seq_midi_event snd_rawmidi crct10dif_pclmul ghash_clmulni_intel aesni_intel drm_kms_helper snd_seq crypto_simd cec cryptd rc_core snd_seq_device snd_
timer fb_sys_fops syscopyarea rapl mei_me intel_pmt_telemetry sysfillrect eeepc_wmi intel_cstate asus_nb_wmi wmi_bmof efi_pstore sysimgblt intel_pmt_class ee1004 mei snd fjes(-) cfg80211 s
oundcore acpi_tad acpi_pad mac_hid sch_fq_codel ipmi_devintf ipmi_msghandler msr parport_pc ppdev drm lp parport ip_tables x_tables autofs4 raid1 dm_raid raid456 async_raid6_recov async_me
mcpy async_pq async_xor async_tx xor raid6_pq libcrc32c mfd_aaeon asus_wmi sparse_keymap crc32_pclmul i2c_i801 igc intel_lpss_pci nvme ahci i2c_smbus intel_lpss xhci_pci libahci idma64 nvm
e_core xhci_pci_renesas vmd intel_pmt wmi video pinctrl_alderlake
Apr 25 10:52:24 gamer kernel: [ 2.844155] CR2: ffffdefe22000008
Apr 25 10:52:24 gamer kernel: [ 2.844157] ---[ end trace f583243509dce4e2 ]---
Apr 25 10:52:24 gamer kernel: [ 2.844381] snd_hda_intel 0000:01:00.1: enabling device (0000 -> 0002)
Apr 25 10:52:24 gamer kernel: [ 2.844434] snd_hda_intel 0000:01:00.1: Disabling MSI
Apr 25 10:52:24 gamer kernel: [ 2.844442] snd_hda_intel 0000:01:00.1: Handle vga_switcheroo audio client
Apr 25 10:52:24 gamer kernel: [ 2.951378] RIP: 0010:kfree+0x6a/0x2a0
Apr 25 10:52:24 gamer kernel: [ 2.951383] Code: 80 4d 01 f4 0f 82 37 02 00 00 48 c7 c0 00 00 00 80 48 2b 05 98 1e 3d 01 49 01 c4 49 c1 ec 0c 49 c1 e4 06 4c 03 25 76 1e 3d 01 <49> 8b 44
24 08 48 8d 50 ff a8 01 4c 0f 45 e2 49 8b 54 24 08 48 8d
Apr 25 10:52:24 gamer kernel: [ 2.951385] RSP: 0018:ffffaf8d410c3c98 EFLAGS: 00010286
Apr 25 10:52:24 gamer kernel: [ 2.951386] RAX: 0000641800000000 RBX: ffff9be88e80d1b8 RCX: 0000000000000000
Apr 25 10:52:24 gamer kernel: [ 2.951388] RDX: ffff9be88ffe4980 RSI: ffffffffc1514761 RDI: 0000000000000011
Apr 25 10:52:24 gamer kernel: [ 2.951388] RBP: ffffaf8d410c3cd0 R08: ffff9be880042d00 R09: ffffaf8d410c3b58
Apr 25 10:52:24 gamer kernel: [ 2.951389] R10: ffff9be90ca8bfff R11: 0000000000000000 R12: ffffdefe22000000
Apr 25 10:52:24 gamer kernel: [ 2.951390] R13: ffff9be88e80d2b8 R14: 0000000000000011 R15: 0000000000000000
Apr 25 10:52:24 gamer kernel: [ 2.951390] FS: 0000000000000000(0000) GS:ffff9befdf400000(0000) knlGS:0000000000000000
Apr 25 10:52:24 gamer kernel: [ 2.951391] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Apr 25 10:52:24 gamer kernel: [ 2.951392] CR2: ffffdefe22000008 CR3: 000000010c8ae001 CR4: 0000000000770ee0
Apr 25 10:52:24 gamer kernel: [ 2.951393] PKRU: 55555554
Apr 25 10:52:24 gamer kernel: [ 3.008074] usb 1-4: new full-speed USB device number 3 using xhci_hcd
Apr 25 10:52:24 gamer kernel: [ 3.156957] nvidia: loading out-of-tree module taints kernel.
Apr 25 10:52:24 gamer kernel: [ 3.156965] nvidia: module license 'NVIDIA' taints kernel.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.13.0-40-generic 5.13.0-40.45~20.04.1
ProcVersionSignature: Ubuntu 5.13.0-40.45~20.04.1-generic 5.13.19
Uname: Linux 5.13.0-40-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.23
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri Apr 29 15:47:56 2022
InstallationDate: Installed on 2021-12-20 (129 days ago)
InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
SourcePackage: linux-signed-hwe-5.13
UpgradeStatus: No upgrade log present (probably fresh install)