OEM Priority Project

Qualcomm Atheros QCA6174 [168c:003e] Subsystem: Killer 1435 Wireless-AC [1a56:143a]: Disabling wifi causes kernel warning in __sta_info_destroy_part2

Bug #1872351 reported by Nikolaj Løbner Sheller on 2020-04-12

This bug affects 4 people

Affects		Status	Importance	Assigned to	Milestone
	OEM Priority Project	New	High	Unassigned
	linux (Ubuntu)	Confirmed	Undecided	Unassigned

Bug Description

I have multiple issues with wifi on my Dell XPS 9380.
This error was triggered when I tried to disable my wifi.

[ 3634.322471] ------------[ cut here ]------------
[ 3634.322524] WARNING: CPU: 3 PID: 1188 at net/mac80211/sta_info.c:1057 __sta_info_destroy_part2+0x14e/0x160 [mac80211]
[ 3634.322525] Modules linked in: rfcomm vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) ccm typec_displayport cmac algif_hash algif_skcipher af_alg bnep binfmt_misc nls_iso8859_1 mei_hdcp intel_rapl_msr snd_hda_codec_hdmi dell_laptop snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_nhlt snd_hda_codec snd_hda_core snd_usb_audio ath10k_pci x86_pkg_temp_thermal snd_usbmidi_lib snd_seq_midi snd_hwdep snd_seq_midi_event ath10k_core intel_powerclamp coretemp cdc_ether snd_rawmidi usbnet btusb kvm_intel r8152 ath btrtl mii btbcm kvm snd_seq uvcvideo videobuf2_vmalloc btintel videobuf2_memops intel_cstate videobuf2_v4l2 joydev snd_seq_device snd_pcm dell_wmi intel_rapl_perf videobuf2_common bluetooth mac80211 dell_smbios videodev snd_timer dcdbas mc input_leds ecdh_generic ecc wmi_bmof snd dell_wmi_descriptor serio_raw intel_wmi_thunderbolt cfg80211 soundcore rtsx_pci_ms libarc4 memstick hid_multitouch processor_thermal_device ucsi_acpi typec_ucsi mei_me intel_rapl_common
[ 3634.322564] intel_xhci_usb_role_switch mei typec intel_soc_dts_iosf intel_pch_thermal roles int3403_thermal int340x_thermal_zone int3400_thermal mac_hid acpi_pad intel_hid acpi_thermal_rel sparse_keymap sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 mmc_block dm_crypt usbhid hid_generic crct10dif_pclmul crc32_pclmul rtsx_pci_sdmmc i915 ghash_clmulni_intel aesni_intel crypto_simd cryptd i2c_algo_bit glue_helper drm_kms_helper psmouse syscopyarea sysfillrect nvme sysimgblt i2c_i801 fb_sys_fops nvme_core drm intel_lpss_pci rtsx_pci intel_lpss idma64 i2c_hid virt_dma wmi hid pinctrl_sunrisepoint video pinctrl_intel
[ 3634.322599] CPU: 3 PID: 1188 Comm: NetworkManager Tainted: G OE 5.4.0-21-generic #25-Ubuntu
[ 3634.322600] Hardware name: Dell Inc. XPS 13 9370/0F6P3V, BIOS 1.12.1 12/11/2019
[ 3634.322633] RIP: 0010:__sta_info_destroy_part2+0x14e/0x160 [mac80211]
[ 3634.322635] Code: 24 0c 01 00 00 00 0f 84 52 ff ff ff 45 31 c0 b9 01 00 00 00 4c 89 e2 48 89 de 4c 89 ef e8 0a a6 ff ff 85 c0 0f 84 34 ff ff ff <0f> 0b e9 2d ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00
[ 3634.322636] RSP: 0018:ffffa70c009c3918 EFLAGS: 00010282
[ 3634.322638] RAX: 00000000ffffff94 RBX: ffff9006104cc8c0 RCX: 0000000000000000
[ 3634.322640] RDX: ffff90061ba3c740 RSI: 0000000000000000 RDI: ffff900613a62f48
[ 3634.322641] RBP: ffffa70c009c3938 R08: ffff90061e4d78c8 R09: 0000000000000004
[ 3634.322642] R10: 0000000000000000 R11: 0000000000000000 R12: ffff900613f28000
[ 3634.322643] R13: ffff900613a607a0 R14: ffff9006104cc8c0 R15: ffff900613a60d68
[ 3634.322644] FS: 00007f596b396240(0000) GS:ffff90061e4c0000(0000) knlGS:0000000000000000
[ 3634.322645] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3634.322646] CR2: 00000db00945f000 CR3: 0000000494824005 CR4: 00000000003606e0
[ 3634.322647] Call Trace:
[ 3634.322670] __sta_info_flush+0x128/0x180 [mac80211]
[ 3634.322696] ieee80211_set_disassoc+0xc0/0x5f0 [mac80211]
[ 3634.322719] ieee80211_mgd_deauth+0x104/0x490 [mac80211]
[ 3634.322743] ieee80211_deauth+0x18/0x20 [mac80211]
[ 3634.322782] cfg80211_mlme_deauth+0xb6/0x1e0 [cfg80211]
[ 3634.322804] cfg80211_mlme_down+0x66/0x80 [cfg80211]
[ 3634.322823] cfg80211_disconnect+0x127/0x1e0 [cfg80211]
[ 3634.322827] ? _raw_spin_unlock_bh+0x1e/0x20
[ 3634.322845] __cfg80211_leave+0x133/0x1b0 [cfg80211]
[ 3634.322862] cfg80211_leave+0x2c/0x40 [cfg80211]
[ 3634.322879] cfg80211_netdev_notifier_call+0x1b2/0x590 [cfg80211]
[ 3634.322902] ? ath10k_warn.cold+0x1a/0x1f [ath10k_core]
[ 3634.322911] ? ath10k_config_ps+0x52/0x70 [ath10k_core]
[ 3634.322913] ? rtnl_is_locked+0x15/0x20
[ 3634.322917] ? inetdev_event+0x47/0x560
[ 3634.322919] ? skb_dequeue+0x5a/0x70
[ 3634.322923] notifier_call_chain+0x55/0x80
[ 3634.322925] raw_notifier_call_chain+0x16/0x20
[ 3634.322927] call_netdevice_notifiers_info+0x2e/0x60
[ 3634.322929] __dev_close_many+0x63/0x120
[ 3634.322931] dev_close_many+0x91/0x150
[ 3634.322933] dev_close.part.0+0x4a/0x70
[ 3634.322936] dev_close+0x18/0x20
[ 3634.322955] cfg80211_shutdown_all_interfaces+0x77/0xd0 [cfg80211]
[ 3634.322971] cfg80211_rfkill_set_block+0x26/0x30 [cfg80211]
[ 3634.322974] rfkill_set_block+0x9b/0x150
[ 3634.322976] rfkill_fop_write+0x136/0x1e0
[ 3634.322979] __vfs_write+0x1b/0x40
[ 3634.322981] vfs_write+0xb9/0x1a0
[ 3634.322983] ksys_write+0xb1/0xe0
[ 3634.322985] __x64_sys_write+0x1a/0x20
[ 3634.322988] do_syscall_64+0x57/0x190
[ 3634.322991] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 3634.322993] RIP: 0033:0x7f596c8062cf
[ 3634.322995] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 29 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 2d 44 89 c7 48 89 44 24 08 e8 5c fd ff ff 48
[ 3634.322996] RSP: 002b:00007ffc165340c0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[ 3634.322998] RAX: ffffffffffffffda RBX: 0000559d02bf45c5 RCX: 00007f596c8062cf
[ 3634.322999] RDX: 0000000000000008 RSI: 00007ffc165340f8 RDI: 0000000000000020
[ 3634.323000] RBP: 0000000000000020 R08: 0000000000000000 R09: 0000000000000001
[ 3634.323001] R10: 0000000000000000 R11: 0000000000000293 R12: 0000559d03d01040
[ 3634.323002] R13: 0000000000000000 R14: 0000000000000000 R15: 0000559d03cf8820
[ 3634.323004] ---[ end trace 3dc4d97c4ae22dea ]---

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-21-generic 5.4.0-21.25
ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
Uname: Linux 5.4.0-21-generic x86_64
ApportVersion: 2.20.11-0ubuntu26
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: nikolaj 1961 F.... pulseaudio
/dev/snd/controlC0: nikolaj 1961 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sun Apr 12 22:42:46 2020
InstallationDate: Installed on 2019-11-15 (149 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
MachineType: Dell Inc. XPS 13 9370
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-21-generic root=/dev/mapper/vgubuntu-root ro quiet splash mem_sleep_default=deep vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.4.0-21-generic N/A
linux-backports-modules-5.4.0-21-generic N/A
linux-firmware 1.187
SourcePackage: linux
UpgradeStatus: Upgraded to focal on 2020-04-04 (8 days ago)
dmi.bios.date: 12/11/2019
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.12.1
dmi.board.name: 0F6P3V
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.12.1:bd12/11/2019:svnDellInc.:pnXPS139370:pvr:rvnDellInc.:rn0F6P3V:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 13 9370
dmi.product.sku: 07E6
dmi.sys.vendor: Dell Inc.

Tags:

Revision history for this message

Nikolaj Løbner Sheller (nikolaj-l) wrote on 2020-04-12:

AlsaInfo.txt Edit (45.3 KiB, text/plain; charset="utf-8")
CRDA.txt Edit (468 bytes, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (83.8 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (2.4 KiB, text/plain; charset="utf-8")
IwConfig.txt Edit (254 bytes, text/plain; charset="utf-8")
Lspci.txt Edit (17.3 KiB, text/plain; charset="utf-8")
Lspci-vt.txt Edit (1.4 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (764 bytes, text/plain; charset="utf-8")
Lsusb-t.txt Edit (1.3 KiB, text/plain; charset="utf-8")
Lsusb-v.txt Edit (72.8 KiB, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (10.2 KiB, text/plain; charset="utf-8")
ProcCpuinfoMinimal.txt Edit (1.3 KiB, text/plain; charset="utf-8")
ProcEnviron.txt Edit (310 bytes, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (6.0 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (7.9 KiB, text/plain; charset="utf-8")
PulseList.txt Edit (38.6 KiB, text/plain; charset="utf-8")
RfKill.txt Edit (113 bytes, text/plain; charset="utf-8")
UdevDb.txt Edit (266.4 KiB, text/plain; charset="utf-8")
WifiSyslog.txt Edit (105.6 KiB, text/plain; charset="utf-8")

Revision history for this message

Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote on 2020-04-12: Status changed to Confirmed

This change was made by a bot.

Changed in linux (Ubuntu):
status:	New → Confirmed

Revision history for this message

Alex Hung (alexhung) wrote on 2020-04-14: Re: Disabling wifi causes kernel error

This is a warning message generated by sta_info.c (See details @ https://elixir.bootlin.com/linux/v5.4.32/source/net/mac80211/sta_info.c#L1059)

Does your wifi return to normal after disabling and enabling?

You-Sheng Yang (vicamo) on 2020-04-14

summary:	- Disabling wifi causes kernel error + Qualcomm Atheros QCA6174 Killer 1435 Wireless-AC: Disabling wifi causes + kernel warning in __sta_info_destroy_part2
tags:	added: hwe-networking-wifi

Revision history for this message

Nikolaj Løbner Sheller (nikolaj-l) wrote on 2020-04-14: Re: Qualcomm Atheros QCA6174 Killer 1435 Wireless-AC: Disabling wifi causes kernel warning in __sta_info_destroy_part2

I cannot disable and re-enable my wifi as the wifi does not respond to changes in NetworkManager after this error. My wifi does not return to normal.

Revision history for this message

Alex Hung (alexhung) wrote on 2020-04-14:

try "rfkill list" to list all radio devices, such as

$ rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no

run "rfkill block 2" to disable it, and "run kill unblock 2" to enable it, assuming your wifi is also (2).

Revision history for this message

Nikolaj Løbner Sheller (nikolaj-l) wrote on 2020-04-14:

Download full text (26.3 KiB)

The error has not occurred after boot:

$ rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no

$ rfkill block 1

The command did not terminate and generated the following output in dmesg:

The error has not occurred after boot:

$ rfkill list
0: hci0: Bluetooth
	Soft blocked: no
	Hard blocked: no
1: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no

$ rfkill block 1

The command did not terminate and generated the following output in dmesg:

[16394.658215] ath10k_pci 0000:02:00.0: wmi command 16387 timeout, restarting hardware
[16394.658221] ath10k_pci 0000:02:00.0: failed to set 5g txpower 30: -11
[16394.658223] ath10k_pci 0000:02:00.0: failed to setup tx power 30: -11
[16394.658225] ath10k_pci 0000:02:00.0: failed to recalc tx power: -11
[16394.658348] ath10k_pci 0000:02:00.0: failed to set inactivity time for vdev 0: -108
[16394.658350] ath10k_pci 0000:02:00.0: failed to setup powersave: -108
[16394.658376] wlp2s0: deauthenticating from 5a:ef:68:b7:22:f2 by local choice (Reason: 3=DEAUTH_LEAVING)
[16394.658386] ath10k_pci 0000:02:00.0: failed to set inactivity time for vdev 0: -108
[16394.658388] ath10k_pci 0000:02:00.0: failed to setup powersave: -108
[16394.658391] ath10k_pci 0000:02:00.0: failed to set PS Mode 0 for vdev 0: -108
[16394.658393] ath10k_pci 0000:02:00.0: failed to setup powersave: -108
[16397.715380] ath10k_pci 0000:02:00.0: failed to receive initialized event from target: 00000000
[16400.747627] ath10k_pci 0000:02:00.0: failed to receive initialized event from target: 00000000
[16400.747631] ath10k_warn: 2 callbacks suppressed
[16400.747632] ath10k_pci 0000:02:00.0: failed to wait for target init: -110
[16400.749353] ieee80211 phy0: Hardware restart was requested
[16400.749369] ath10k_pci 0000:02:00.0: failed to flush transmit queue (skip 1 ar-state 2): 1250
[16400.749566] ath10k_pci 0000:02:00.0: failed to delete peer 5a:ef:68:b7:22:f2 for vdev 0: -108
[16400.749603] ------------[ cut here ]------------
[16400.749630] WARNING: CPU: 3 PID: 17861 at net/mac80211/sta_info.c:1057 __sta_info_destroy_part2+0x14e/0x160 [mac80211]
[16400.749631] Modules linked in: uas usb_storage usbhid thunderbolt rfcomm vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) ccm typec_displayport cmac algif_hash algif_skcipher af_alg bnep binfmt_misc mei_hdcp intel_rapl_msr snd_hda_codec_hdmi cdc_ether usbnet nls_iso8859_1 snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel dell_laptop snd_intel_nhlt ledtrig_audio snd_hda_codec r8152 mii snd_usb_audio ath10k_pci snd_hda_core snd_usbmidi_lib ath10k_core snd_hwdep snd_seq_midi snd_seq_midi_event ath snd_pcm joydev x86_pkg_temp_thermal snd_rawmidi btusb intel_powerclamp btrtl coretemp btbcm btintel kvm_intel uvcvideo bluetooth videobuf2_vmalloc videobuf2_memops dell_wmi mac80211 dell_smbios videobuf2_v4l2 dcdbas videobuf2_common kvm videodev intel_cstate ecdh_generic mc input_leds ecc snd_seq intel_rapl_perf wmi_bmof dell_wmi_descriptor serio_raw intel_wmi_thunderbolt cfg80211 snd_seq_device snd_timer rtsx_pci_ms snd intel_xhci_usb_role_switch processor_thermal_device intel_rapl_common memstick
[16400.749659]  libarc4 soundcore mei_me ucsi_acpi typec_ucsi hid_multitouch roles intel_pch_thermal mei typec intel_soc_dts_iosf intel_hid int3403_thermal int340x_thermal_zone int3400_thermal sparse_keymap acpi_thermal_rel acpi_pad mac_hid sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 mmc_block dm_crypt hid_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel i915 rtsx_pci_sdmmc nvme aesni_intel crypto_simd i2c_algo_bit cryptd glue_helper drm_kms_helper psmouse syscopyarea sysfillrect sysimgblt i2c_i801 fb_sys_fops nvme_core intel_lpss_pci drm intel_lpss idma64 rtsx_pci virt_dma i2c_hid wmi hid pinctrl_sunrisepoint pinctrl_intel video
[16400.749681] CPU: 3 PID: 17861 Comm: rfkill Tainted: G        W  OE     5.4.0-21-generic #25-Ubuntu
[16400.749682] Hardware name: Dell Inc. XPS 13 9370/0F6P3V, BIOS 1.12.1 12/11/2019
[16400.749701] RIP: 0010:__sta_info_destroy_part2+0x14e/0x160 [mac80211]
[16400.749702] Code: 24 0c 01 00 00 00 0f 84 52 ff ff ff 45 31 c0 b9 01 00 00 00 4c 89 e2 48 89 de 4c 89 ef e8 0a a6 ff ff 85 c0 0f 84 34 ff ff ff <0f> 0b e9 2d ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00
[16400.749703] RSP: 0018:ffffb27f8527f918 EFLAGS: 00010282
[16400.749704] RAX: 00000000ffffff94 RBX: ffff989b07b528c0 RCX: 0000000000000000
[16400.749705] RDX: ffff989afd69af80 RSI: 0000000000000000 RDI: ffff989b03d52f48
[16400.749705] RBP: ffffb27f8527f938 R08: 00000000000005ba R09: 0000000000000004
[16400.749706] R10: 0000000000000000 R11: 0000000000000000 R12: ffff989b3ac8c000
[16400.749707] R13: ffff989b03d507a0 R14: ffff989b07b528c0 R15: ffff989b03d50d68
[16400.749708] FS:  00007fdd1181c740(0000) GS:ffff989b5e4c0000(0000) knlGS:0000000000000000
[16400.749708] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[16400.749709] CR2: 000001ce142e0000 CR3: 00000001a639c002 CR4: 00000000003626e0
[16400.749710] Call Trace:
[16400.749725]  __sta_info_flush+0x128/0x180 [mac80211]
[16400.749743]  ieee80211_set_disassoc+0xc0/0x5f0 [mac80211]
[16400.749760]  ieee80211_mgd_deauth+0x104/0x490 [mac80211]
[16400.749776]  ieee80211_deauth+0x18/0x20 [mac80211]
[16400.749808]  cfg80211_mlme_deauth+0xb6/0x1e0 [cfg80211]
[16400.749824]  cfg80211_mlme_down+0x66/0x80 [cfg80211]
[16400.749839]  cfg80211_disconnect+0x127/0x1e0 [cfg80211]
[16400.749845]  ? _raw_spin_unlock_bh+0x1e/0x20
[16400.749858]  __cfg80211_leave+0x133/0x1b0 [cfg80211]
[16400.749872]  cfg80211_leave+0x2c/0x40 [cfg80211]
[16400.749885]  cfg80211_netdev_notifier_call+0x1b2/0x590 [cfg80211]
[16400.749888]  ? try_to_wake_up+0x65/0x6a0
[16400.749890]  ? __mutex_lock.isra.0+0x37/0x4f0
[16400.749891]  ? wake_up_q+0x40/0x70
[16400.749893]  ? wake_up_q+0x40/0x70
[16400.749895]  ? rtnl_is_locked+0x15/0x20
[16400.749898]  ? inetdev_event+0x47/0x560
[16400.749900]  ? skb_dequeue+0x5a/0x70
[16400.749902]  notifier_call_chain+0x55/0x80
[16400.749904]  raw_notifier_call_chain+0x16/0x20
[16400.749906]  call_netdevice_notifiers_info+0x2e/0x60
[16400.749907]  __dev_close_many+0x63/0x120
[16400.749908]  dev_close_many+0x91/0x150
[16400.749910]  dev_close.part.0+0x4a/0x70
[16400.749911]  dev_close+0x18/0x20
[16400.749923]  cfg80211_shutdown_all_interfaces+0x77/0xd0 [cfg80211]
[16400.749935]  cfg80211_rfkill_set_block+0x26/0x30 [cfg80211]
[16400.749937]  rfkill_set_block+0x9b/0x150
[16400.749939]  rfkill_fop_write+0x1a6/0x1e0
[16400.749941]  __vfs_write+0x1b/0x40
[16400.749942]  vfs_write+0xb9/0x1a0
[16400.749943]  ksys_write+0xb1/0xe0
[16400.749945]  __x64_sys_write+0x1a/0x20
[16400.749947]  do_syscall_64+0x57/0x190
[16400.749949]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[16400.749950] RIP: 0033:0x7fdd11930057
[16400.749952] Code: 64 89 02 48 c7 c0 ff ff ff ff eb bb 0f 1f 80 00 00 00 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
[16400.749953] RSP: 002b:00007ffea9f2ea78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[16400.749954] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fdd11930057
[16400.749954] RDX: 0000000000000008 RSI: 00007ffea9f2ea90 RDI: 0000000000000003
[16400.749955] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000004
[16400.749956] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[16400.749956] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[16400.749958] ---[ end trace e6342b25b0d28a1b ]---
[16400.750022] ath10k_pci 0000:02:00.0: failed to recalculate rts/cts prot for vdev 0: -108
[16400.750024] ath10k_pci 0000:02:00.0: failed to set cts protection for vdev 0: -108
[16400.750027] ath10k_pci 0000:02:00.0: failed to set erp slot for vdev 0: -108
[16400.750028] ath10k_pci 0000:02:00.0: failed to set preamble for vdev 0: -108
[16400.750030] ath10k_pci 0000:02:00.0: failed to down vdev 0: -108
[16400.750032] ath10k_pci 0000:02:00.0: failed to submit vdev param txbf 0x0: -108
[16400.750033] ath10k_pci 0000:02:00.0: failed to recalc txbf for vdev 0: -108

I then attempted to do:
$ sudo -s

which also hung.

Subsequent dmesg errors:
16554.906648] INFO: task NetworkManager:1178 blocked for more than 120 seconds.
[16554.906656]       Tainted: G        W  OE     5.4.0-21-generic #25-Ubuntu
[16554.906659] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[16554.906663] NetworkManager  D    0  1178      1 0x00000000
[16554.906668] Call Trace:
[16554.906684]  __schedule+0x2e3/0x740
[16554.906691]  schedule+0x42/0xb0
[16554.906698]  schedule_preempt_disabled+0xe/0x10
[16554.906701]  __mutex_lock.isra.0+0x182/0x4f0
[16554.906711]  ? kmalloc_large_node+0x88/0xa0
[16554.906715]  ? __kmalloc_node_track_caller+0x250/0x310
[16554.906719]  ? __switch_to_asm+0x34/0x70
[16554.906723]  __mutex_lock_slowpath+0x13/0x20
[16554.906727]  mutex_lock+0x2e/0x40
[16554.906731]  rtnl_lock+0x15/0x20
[16554.906786]  nl80211_dump_scan+0x34/0x160 [cfg80211]
[16554.906791]  ? __alloc_skb+0x98/0x1d0
[16554.906799]  netlink_dump+0x18b/0x390
[16554.906806]  __netlink_dump_start+0x191/0x200
[16554.906810]  genl_family_rcv_msg+0x3e9/0x470
[16554.906850]  ? nl80211_dump_survey+0x2c0/0x2c0 [cfg80211]
[16554.906856]  ? do_sys_poll+0x480/0x520
[16554.906861]  ? copyout+0x2c/0x30
[16554.906866]  genl_rcv_msg+0x4c/0xa0
[16554.906872]  ? _cond_resched+0x19/0x30
[16554.906875]  ? genl_family_rcv_msg+0x470/0x470
[16554.906881]  netlink_rcv_skb+0x50/0x120
[16554.906885]  genl_rcv+0x29/0x40
[16554.906890]  netlink_unicast+0x187/0x220
[16554.906896]  netlink_sendmsg+0x222/0x3e0
[16554.906902]  sock_sendmsg+0x65/0x70
[16554.906905]  ____sys_sendmsg+0x212/0x280
[16554.906910]  ___sys_sendmsg+0x88/0xd0
[16554.906915]  ? poll_select_finish+0x210/0x210
[16554.906919]  ? poll_select_finish+0x210/0x210
[16554.906922]  ? poll_select_finish+0x210/0x210
[16554.906927]  ? ep_poll+0x294/0x420
[16554.906931]  ? __fget_light+0x57/0x70
[16554.906935]  __sys_sendmsg+0x5c/0xa0
[16554.906942]  __x64_sys_sendmsg+0x1f/0x30
[16554.906950]  do_syscall_64+0x57/0x190
[16554.906956]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[16554.906963] RIP: 0033:0x7fda87f4c12d
[16554.906976] Code: Bad RIP value.
[16554.906979] RSP: 002b:00007ffca2c12840 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
[16554.906984] RAX: ffffffffffffffda RBX: 0000559237020840 RCX: 00007fda87f4c12d
[16554.906986] RDX: 0000000000000000 RSI: 00007ffca2c12890 RDI: 000000000000000b
[16554.906988] RBP: 00007ffca2c12890 R08: 0000000000000000 R09: 0000000000001000
[16554.906990] R10: 0000559236ff2010 R11: 0000000000000293 R12: 0000559237020840
[16554.906992] R13: 0000559237020980 R14: 00007fda88087280 R15: 000055923716b350
[16554.907015] INFO: task wpa_supplicant:1216 blocked for more than 120 seconds.
[16554.907020]       Tainted: G        W  OE     5.4.0-21-generic #25-Ubuntu
[16554.907022] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[16554.907025] wpa_supplicant  D    0  1216      1 0x00000000
[16554.907029] Call Trace:
[16554.907036]  __schedule+0x2e3/0x740
[16554.907042]  schedule+0x42/0xb0
[16554.907048]  schedule_preempt_disabled+0xe/0x10
[16554.907051]  __mutex_lock.isra.0+0x182/0x4f0
[16554.907057]  __mutex_lock_slowpath+0x13/0x20
[16554.907060]  mutex_lock+0x2e/0x40
[16554.907063]  rtnl_lock+0x15/0x20
[16554.907102]  nl80211_pre_doit+0x104/0x1b0 [cfg80211]
[16554.907106]  genl_family_rcv_msg+0x1a5/0x470
[16554.907112]  genl_rcv_msg+0x4c/0xa0
[16554.907117]  ? _cond_resched+0x19/0x30
[16554.907120]  ? genl_family_rcv_msg+0x470/0x470
[16554.907126]  netlink_rcv_skb+0x50/0x120
[16554.907130]  genl_rcv+0x29/0x40
[16554.907135]  netlink_unicast+0x187/0x220
[16554.907141]  netlink_sendmsg+0x222/0x3e0
[16554.907146]  sock_sendmsg+0x65/0x70
[16554.907150]  ____sys_sendmsg+0x212/0x280
[16554.907154]  ___sys_sendmsg+0x88/0xd0
[16554.907161]  ? destroy_inode+0x65/0x80
[16554.907166]  ? evict+0x14c/0x1b0
[16554.907171]  ? iput+0x148/0x210
[16554.907177]  ? _cond_resched+0x19/0x30
[16554.907183]  ? get_max_files+0x20/0x20
[16554.907189]  ? __cgroup_bpf_run_filter_setsockopt+0xae/0x2c0
[16554.907194]  ? _cond_resched+0x19/0x30
[16554.907199]  ? aa_sk_perm+0x43/0x170
[16554.907204]  __sys_sendmsg+0x5c/0xa0
[16554.907209]  __x64_sys_sendmsg+0x1f/0x30
[16554.907215]  do_syscall_64+0x57/0x190
[16554.907220]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[16554.907223] RIP: 0033:0x7fb7db08c5b7
[16554.907229] Code: Bad RIP value.
[16554.907232] RSP: 002b:00007ffda972d8f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[16554.907235] RAX: ffffffffffffffda RBX: 000055b27117f590 RCX: 00007fb7db08c5b7
[16554.907237] RDX: 0000000000000000 RSI: 00007ffda972d930 RDI: 0000000000000006
[16554.907239] RBP: 000055b2711b38e0 R08: 0000000000000004 R09: 00007fb7db154b80
[16554.907241] R10: 00007ffda972da04 R11: 0000000000000246 R12: 000055b27117f4a0
[16554.907243] R13: 00007ffda972d930 R14: 00007ffda972da04 R15: 000055b2711c5dc0
[16554.907337] INFO: task DNS Resolver #7:12790 blocked for more than 120 seconds.
[16554.907341]       Tainted: G        W  OE     5.4.0-21-generic #25-Ubuntu
[16554.907344] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[16554.907346] DNS Resolver #7 D    0 12790   2278 0x00000000
[16554.907350] Call Trace:
[16554.907357]  __schedule+0x2e3/0x740
[16554.907362]  ? fib6_table_lookup+0xf2/0x2e0
[16554.907368]  schedule+0x42/0xb0
[16554.907374]  schedule_preempt_disabled+0xe/0x10
[16554.907377]  __mutex_lock.isra.0+0x182/0x4f0
[16554.907382]  __mutex_lock_slowpath+0x13/0x20
[16554.907385]  mutex_lock+0x2e/0x40
[16554.907391]  __netlink_dump_start+0x59/0x200
[16554.907395]  rtnetlink_rcv_msg+0x23a/0x380
[16554.907399]  ? __switch_to_asm+0x34/0x70
[16554.907403]  ? rtnl_xdp_prog_skb+0x70/0x70
[16554.907406]  ? rtnl_xdp_prog_skb+0x70/0x70
[16554.907410]  ? rtnl_calcit.isra.0+0x100/0x100
[16554.907416]  netlink_rcv_skb+0x50/0x120
[16554.907420]  rtnetlink_rcv+0x15/0x20
[16554.907425]  netlink_unicast+0x187/0x220
[16554.907431]  netlink_sendmsg+0x222/0x3e0
[16554.907436]  sock_sendmsg+0x65/0x70
[16554.907440]  __sys_sendto+0x113/0x190
[16554.907446]  ? fd_install+0x27/0x30
[16554.907450]  ? __sys_socket+0x9e/0xf0
[16554.907454]  __x64_sys_sendto+0x29/0x30
[16554.907459]  do_syscall_64+0x57/0x190
[16554.907464]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[16554.907466] RIP: 0033:0x7fbe1534a6b4
[16554.907472] Code: Bad RIP value.
[16554.907474] RSP: 002b:00007fbde8868120 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
[16554.907477] RAX: ffffffffffffffda RBX: 00007fbde8869240 RCX: 00007fbe1534a6b4
[16554.907479] RDX: 0000000000000014 RSI: 00007fbde8869240 RDI: 00000000000000bb
[16554.907481] RBP: 0000000000000000 R08: 00007fbde88691e4 R09: 000000000000000c
[16554.907482] R10: 0000000000000000 R11: 0000000000000293 R12: 00007fbde88691e4
[16554.907484] R13: 00007fbde8869870 R14: 00007fbde8869200 R15: 00000000000000bb
[16554.907499] INFO: task Qt bearer threa:2770 blocked for more than 120 seconds.
[16554.907502]       Tainted: G        W  OE     5.4.0-21-generic #25-Ubuntu
[16554.907504] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[16554.907507] Qt bearer threa D    0  2770   2278 0x00000000
[16554.907510] Call Trace:
[16554.907516]  __schedule+0x2e3/0x740
[16554.907522]  schedule+0x42/0xb0
[16554.907528]  schedule_preempt_disabled+0xe/0x10
[16554.907531]  __mutex_lock.isra.0+0x182/0x4f0
[16554.907536]  __mutex_lock_slowpath+0x13/0x20
[16554.907539]  mutex_lock+0x2e/0x40
[16554.907544]  __netlink_dump_start+0x59/0x200
[16554.907548]  rtnetlink_rcv_msg+0x23a/0x380
[16554.907552]  ? rtnl_fill_ifinfo+0xea0/0xea0
[16554.907556]  ? rtnl_fill_ifinfo+0xea0/0xea0
[16554.907559]  ? rtnl_calcit.isra.0+0x100/0x100
[16554.907565]  netlink_rcv_skb+0x50/0x120
[16554.907569]  rtnetlink_rcv+0x15/0x20
[16554.907574]  netlink_unicast+0x187/0x220
[16554.907580]  netlink_sendmsg+0x222/0x3e0
[16554.907585]  sock_sendmsg+0x65/0x70
[16554.907589]  __sys_sendto+0x113/0x190
[16554.907596]  ? fput+0x13/0x15
[16554.907600]  ? __sys_setsockopt+0x153/0x180
[16554.907604]  __x64_sys_sendto+0x29/0x30
[16554.907609]  do_syscall_64+0x57/0x190
[16554.907614]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[16554.907616] RIP: 0033:0x7fcd9a84754c
[16554.907621] Code: Bad RIP value.
[16554.907623] RSP: 002b:00007fcd7bb4a740 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[16554.907626] RAX: ffffffffffffffda RBX: 0000000000000022 RCX: 00007fcd9a84754c
[16554.907627] RDX: 0000000000000020 RSI: 00007fcd7bb4a7d0 RDI: 0000000000000022
[16554.907629] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[16554.907631] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcd7bb4a888
[16554.907633] R13: 00007fcd7bb4a7a8 R14: 0000000000000000 R15: 00007fcd60036038
[16554.907747] INFO: task kworker/6:0:17454 blocked for more than 120 seconds.
[16554.907750]       Tainted: G        W  OE     5.4.0-21-generic #25-Ubuntu
[16554.907752] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[16554.907755] kworker/6:0     D    0 17454      2 0x80004000
[16554.907804] Workqueue: events disconnect_work [cfg80211]
[16554.907806] Call Trace:
[16554.907814]  __schedule+0x2e3/0x740
[16554.907820]  schedule+0x42/0xb0
[16554.907825]  schedule_preempt_disabled+0xe/0x10
[16554.907828]  __mutex_lock.isra.0+0x182/0x4f0
[16554.907833]  ? __switch_to_asm+0x40/0x70
[16554.907837]  ? __switch_to_asm+0x34/0x70
[16554.907841]  ? __switch_to_asm+0x34/0x70
[16554.907844]  ? __switch_to_asm+0x40/0x70
[16554.907848]  ? __switch_to_asm+0x40/0x70
[16554.907851]  __mutex_lock_slowpath+0x13/0x20
[16554.907854]  mutex_lock+0x2e/0x40
[16554.907857]  rtnl_lock+0x15/0x20
[16554.907896]  disconnect_work+0x17/0xd0 [cfg80211]
[16554.907903]  process_one_work+0x1eb/0x3b0
[16554.907908]  worker_thread+0x4d/0x400
[16554.907914]  kthread+0x104/0x140
[16554.907918]  ? process_one_work+0x3b0/0x3b0
[16554.907922]  ? kthread_park+0x90/0x90
[16554.907926]  ret_from_fork+0x35/0x40
[16554.907933] INFO: task kworker/1:1:17590 blocked for more than 120 seconds.
[16554.907936]       Tainted: G        W  OE     5.4.0-21-generic #25-Ubuntu
[16554.907939] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[16554.907942] kworker/1:1     D    0 17590      2 0x80004000
[16554.907952] Workqueue: events linkwatch_event
[16554.907955] Call Trace:
[16554.907963]  __schedule+0x2e3/0x740
[16554.907971]  schedule+0x42/0xb0
[16554.907977]  schedule_preempt_disabled+0xe/0x10
[16554.907980]  __mutex_lock.isra.0+0x182/0x4f0
[16554.907984]  ? __switch_to_asm+0x40/0x70
[16554.907988]  ? __switch_to_asm+0x34/0x70
[16554.907994]  ? __switch_to+0x7f/0x470
[16554.907997]  ? __switch_to_asm+0x40/0x70
[16554.908001]  __mutex_lock_slowpath+0x13/0x20
[16554.908004]  mutex_lock+0x2e/0x40
[16554.908007]  rtnl_lock+0x15/0x20
[16554.908011]  linkwatch_event+0xe/0x30
[16554.908016]  process_one_work+0x1eb/0x3b0
[16554.908021]  worker_thread+0x4d/0x400
[16554.908025]  kthread+0x104/0x140
[16554.908029]  ? process_one_work+0x3b0/0x3b0
[16554.908032]  ? kthread_park+0x90/0x90
[16554.908037]  ret_from_fork+0x35/0x40
[16554.908055] INFO: task kworker/6:2:17714 blocked for more than 120 seconds.
[16554.908059]       Tainted: G        W  OE     5.4.0-21-generic #25-Ubuntu
[16554.908061] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[16554.908063] kworker/6:2     D    0 17714      2 0x80004000
[16554.908112] Workqueue: events_freezable ieee80211_restart_work [mac80211]
[16554.908114] Call Trace:
[16554.908122]  __schedule+0x2e3/0x740
[16554.908128]  schedule+0x42/0xb0
[16554.908133]  schedule_preempt_disabled+0xe/0x10
[16554.908136]  __mutex_lock.isra.0+0x182/0x4f0
[16554.908141]  ? flush_workqueue_prep_pwqs+0x12e/0x140
[16554.908146]  __mutex_lock_slowpath+0x13/0x20
[16554.908149]  mutex_lock+0x2e/0x40
[16554.908151]  rtnl_lock+0x15/0x20
[16554.908184]  ieee80211_restart_work+0x5d/0xf0 [mac80211]
[16554.908189]  process_one_work+0x1eb/0x3b0
[16554.908194]  worker_thread+0x4d/0x400
[16554.908198]  kthread+0x104/0x140
[16554.908202]  ? process_one_work+0x3b0/0x3b0
[16554.908205]  ? kthread_park+0x90/0x90
[16554.908210]  ret_from_fork+0x35/0x40
[16675.735992] INFO: task NetworkManager:1178 blocked for more than 241 seconds.
[16675.736004]       Tainted: G        W  OE     5.4.0-21-generic #25-Ubuntu
[16675.736007] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[16675.736012] NetworkManager  D    0  1178      1 0x00000000
[16675.736020] Call Trace:
[16675.736039]  __schedule+0x2e3/0x740
[16675.736048]  schedule+0x42/0xb0
[16675.736057]  schedule_preempt_disabled+0xe/0x10
[16675.736062]  __mutex_lock.isra.0+0x182/0x4f0
[16675.736073]  ? kmalloc_large_node+0x88/0xa0
[16675.736079]  ? __kmalloc_node_track_caller+0x250/0x310
[16675.736085]  ? __switch_to_asm+0x34/0x70
[16675.736090]  __mutex_lock_slowpath+0x13/0x20
[16675.736094]  mutex_lock+0x2e/0x40
[16675.736100]  rtnl_lock+0x15/0x20
[16675.736181]  nl80211_dump_scan+0x34/0x160 [cfg80211]
[16675.736188]  ? __alloc_skb+0x98/0x1d0
[16675.736196]  netlink_dump+0x18b/0x390
[16675.736203]  __netlink_dump_start+0x191/0x200
[16675.736207]  genl_family_rcv_msg+0x3e9/0x470
[16675.736250]  ? nl80211_dump_survey+0x2c0/0x2c0 [cfg80211]
[16675.736257]  ? do_sys_poll+0x480/0x520
[16675.736263]  ? copyout+0x2c/0x30
[16675.736268]  genl_rcv_msg+0x4c/0xa0
[16675.736274]  ? _cond_resched+0x19/0x30
[16675.736277]  ? genl_family_rcv_msg+0x470/0x470
[16675.736283]  netlink_rcv_skb+0x50/0x120
[16675.736287]  genl_rcv+0x29/0x40
[16675.736293]  netlink_unicast+0x187/0x220
[16675.736299]  netlink_sendmsg+0x222/0x3e0
[16675.736305]  sock_sendmsg+0x65/0x70
[16675.736309]  ____sys_sendmsg+0x212/0x280
[16675.736314]  ___sys_sendmsg+0x88/0xd0
[16675.736319]  ? poll_select_finish+0x210/0x210
[16675.736323]  ? poll_select_finish+0x210/0x210
[16675.736327]  ? poll_select_finish+0x210/0x210
[16675.736332]  ? ep_poll+0x294/0x420
[16675.736336]  ? __fget_light+0x57/0x70
[16675.736340]  __sys_sendmsg+0x5c/0xa0
[16675.736346]  __x64_sys_sendmsg+0x1f/0x30
[16675.736353]  do_syscall_64+0x57/0x190
[16675.736358]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[16675.736363] RIP: 0033:0x7fda87f4c12d
[16675.736374] Code: Bad RIP value.
[16675.736377] RSP: 002b:00007ffca2c12840 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
[16675.736381] RAX: ffffffffffffffda RBX: 0000559237020840 RCX: 00007fda87f4c12d
[16675.736384] RDX: 0000000000000000 RSI: 00007ffca2c12890 RDI: 000000000000000b
[16675.736386] RBP: 00007ffca2c12890 R08: 0000000000000000 R09: 0000000000001000
[16675.736388] R10: 0000559236ff2010 R11: 0000000000000293 R12: 0000559237020840
[16675.736389] R13: 0000559237020980 R14: 00007fda88087280 R15: 000055923716b350
[16675.736415] INFO: task wpa_supplicant:1216 blocked for more than 241 seconds.
[16675.736421]       Tainted: G        W  OE     5.4.0-21-generic #25-Ubuntu
[16675.736423] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[16675.736426] wpa_supplicant  D    0  1216      1 0x00000000
[16675.736430] Call Trace:
[16675.736437]  __schedule+0x2e3/0x740
[16675.736444]  schedule+0x42/0xb0
[16675.736450]  schedule_preempt_disabled+0xe/0x10
[16675.736453]  __mutex_lock.isra.0+0x182/0x4f0
[16675.736459]  __mutex_lock_slowpath+0x13/0x20
[16675.736462]  mutex_lock+0x2e/0x40
[16675.736465]  rtnl_lock+0x15/0x20
[16675.736504]  nl80211_pre_doit+0x104/0x1b0 [cfg80211]
[16675.736509]  genl_family_rcv_msg+0x1a5/0x470
[16675.736514]  genl_rcv_msg+0x4c/0xa0
[16675.736520]  ? _cond_resched+0x19/0x30
[16675.736523]  ? genl_family_rcv_msg+0x470/0x470
[16675.736529]  netlink_rcv_skb+0x50/0x120
[16675.736533]  genl_rcv+0x29/0x40
[16675.736539]  netlink_unicast+0x187/0x220
[16675.736545]  netlink_sendmsg+0x222/0x3e0
[16675.736550]  sock_sendmsg+0x65/0x70
[16675.736554]  ____sys_sendmsg+0x212/0x280
[16675.736559]  ___sys_sendmsg+0x88/0xd0
[16675.736565]  ? destroy_inode+0x65/0x80
[16675.736570]  ? evict+0x14c/0x1b0
[16675.736576]  ? iput+0x148/0x210
[16675.736581]  ? _cond_resched+0x19/0x30
[16675.736587]  ? get_max_files+0x20/0x20
[16675.736594]  ? __cgroup_bpf_run_filter_setsockopt+0xae/0x2c0
[16675.736599]  ? _cond_resched+0x19/0x30
[16675.736604]  ? aa_sk_perm+0x43/0x170
[16675.736610]  __sys_sendmsg+0x5c/0xa0
[16675.736615]  __x64_sys_sendmsg+0x1f/0x30
[16675.736621]  do_syscall_64+0x57/0x190
[16675.736626]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[16675.736629] RIP: 0033:0x7fb7db08c5b7
[16675.736636] Code: Bad RIP value.
[16675.736638] RSP: 002b:00007ffda972d8f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[16675.736642] RAX: ffffffffffffffda RBX: 000055b27117f590 RCX: 00007fb7db08c5b7
[16675.736644] RDX: 0000000000000000 RSI: 00007ffda972d930 RDI: 0000000000000006
[16675.736646] RBP: 000055b2711b38e0 R08: 0000000000000004 R09: 00007fb7db154b80
[16675.736648] R10: 00007ffda972da04 R11: 0000000000000246 R12: 000055b27117f4a0
[16675.736650] R13: 00007ffda972d930 R14: 00007ffda972da04 R15: 000055b2711c5dc0
[16675.736740] INFO: task DNS Resolver #7:12790 blocked for more than 241 seconds.
[16675.736744]       Tainted: G        W  OE     5.4.0-21-generic #25-Ubuntu
[16675.736746] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[16675.736749] DNS Resolver #7 D    0 12790   2278 0x00000000
[16675.736753] Call Trace:
[16675.736760]  __schedule+0x2e3/0x740
[16675.736765]  ? fib6_table_lookup+0xf2/0x2e0
[16675.736771]  schedule+0x42/0xb0
[16675.736777]  schedule_preempt_disabled+0xe/0x10
[16675.736781]  __mutex_lock.isra.0+0x182/0x4f0
[16675.736788]  __mutex_lock_slowpath+0x13/0x20
[16675.736792]  mutex_lock+0x2e/0x40
[16675.736801]  __netlink_dump_start+0x59/0x200
[16675.736807]  rtnetlink_rcv_msg+0x23a/0x380
[16675.736812]  ? __switch_to_asm+0x34/0x70
[16675.736816]  ? rtnl_xdp_prog_skb+0x70/0x70
[16675.736821]  ? rtnl_xdp_prog_skb+0x70/0x70
[16675.736830]  ? rtnl_calcit.isra.0+0x100/0x100
[16675.736836]  netlink_rcv_skb+0x50/0x120
[16675.736840]  rtnetlink_rcv+0x15/0x20
[16675.736845]  netlink_unicast+0x187/0x220
[16675.736851]  netlink_sendmsg+0x222/0x3e0
[16675.736857]  sock_sendmsg+0x65/0x70
[16675.736861]  __sys_sendto+0x113/0x190
[16675.736868]  ? fd_install+0x27/0x30
[16675.736872]  ? __sys_socket+0x9e/0xf0
[16675.736876]  __x64_sys_sendto+0x29/0x30
[16675.736882]  do_syscall_64+0x57/0x190
[16675.736886]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[16675.736889] RIP: 0033:0x7fbe1534a6b4
[16675.736896] Code: Bad RIP value.
[16675.736898] RSP: 002b:00007fbde8868120 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
[16675.736901] RAX: ffffffffffffffda RBX: 00007fbde8869240 RCX: 00007fbe1534a6b4
[16675.736903] RDX: 0000000000000014 RSI: 00007fbde8869240 RDI: 00000000000000bb
[16675.736906] RBP: 0000000000000000 R08: 00007fbde88691e4 R09: 000000000000000c
[16675.736908] R10: 0000000000000000 R11: 0000000000000293 R12: 00007fbde88691e4
[16675.736909] R13: 00007fbde8869870 R14: 00007fbde8869200 R15: 00000000000000bb
[16987.865772] perf: interrupt took too long (3984 > 3980), lowering kernel.perf_event_max_sample_rate to 50000

I had to use the power button to reboot my computer. I could not do this from the UI or cli.

Revision history for this message

Nikolaj Løbner Sheller (nikolaj-l) wrote on 2020-04-14:

After rebooting:

$ rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no

$ rfkill block 1

This time 'rfkill block 1' terminated correctly and dmesg logged:

[ 430.126399] wlp2s0: deauthenticating from 5a:ef:68:b7:22:f2 by local choice (Reason: 3=DEAUTH_LEAVING)

Revision history for this message

Alex Hung (alexhung) wrote on 2020-04-16:

The same wifi used on one of the system I have, and I was able to reproduce the same error once a while. When this warning message occurred, the system wouldn't connect to my router, either.

I was able to workaround this by "sudo modprobe -r ath10k_pci ; sudo modprobe ath10k_pci"

I compared kernel 5.4 (used in Ubuntu 20.04) and 5.7-rc1, and there aren't fixes for this problem. The only patch that touches "__sta_info_destroy_part2" is commit b16798f5b907733 (see https://lore.kernel.org/linux-wireless/20200326155133.ccb4fb0bb356.If48f0f0504efdcf16b8921f48c6d3bb2cb763c99@changeid/)

This patch has cc'ed stable, and it will eventually be included in 5.4. A test kernel (Ubuntu-5.4.0-21.25 + b16798f5b907733) was built and is available @ https://people.canonical.com/~alexhung/LP1872351/

Revision history for this message

Nikolaj Løbner Sheller (nikolaj-l) wrote on 2020-04-16:

I am using OpenWRT on my WRT120AC AP.

It is a shame there are no fixes for this issue.
How can I contribute for finding a solution for this?

Any ideas?

Revision history for this message

Nikolaj Løbner Sheller (nikolaj-l) wrote on 2020-04-16:

#10

I believe this is the same issue:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1767611

Revision history for this message

Alex Tu (alextu) wrote on 2020-04-29:

#11

for reference:
I did not see this issue on my XPS 9380 on Focal + kernel 5.6.0-1008-oem

02:00.0 Network controller [0280]: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter [168c:003e] (rev 32)
Subsystem: Bigfoot Networks, Inc. Killer 1435 Wireless-AC [1a56:143a]
Kernel driver in use: ath10k_pci

Rex Tsai (chihchun) on 2020-04-29

Changed in oem-priority:
importance:	Undecided → High

Revision history for this message

Pedro Lara Benitez (pedrolarben) wrote on 2020-04-29:

#12

I had the same problem https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1875437
I have found several possible solutions on the web, but none of them worked for me until yesterday.
I tried adding in grub the parameter pcie_aspm=off. It is too early to confirm that the problem is solved, but the error has not appeared again since then (finger crossed).

You-Sheng Yang (vicamo) on 2020-06-22

summary:

- Qualcomm Atheros QCA6174 Killer 1435 Wireless-AC: Disabling wifi causes
- kernel warning in __sta_info_destroy_part2
+ Qualcomm Atheros QCA6174 [168c:003e] Subsystem: Killer 1435 Wireless-AC
+ [1a56:143a]: Disabling wifi causes kernel warning in
+ __sta_info_destroy_part2

Revision history for this message

You-Sheng Yang (vicamo) wrote on 2020-06-22:

#13

wifi-onoff Edit (363 bytes, text/plain)

I'm recently able to reproduce that with an Intel 9260 by a wifi-onoff stress script.

Rex Tsai (chihchun) on 2020-08-15

tags:

added: oem-priority

Jeff Lane  (bladernr) on 2020-08-19

tags:

added: ubuntu-certified

Revision history for this message

Alex Hung (alexhung) wrote on 2020-08-25:

#14

Perhaps vicamo's comments #19 on LP:1891405 will help

Revision history for this message

Nikolaj Løbner Sheller (nikolaj-l) wrote on 2020-08-25:

#15

Sadly, the fix from LP:1891405 this does not seem to help in my case.

I did the following:
sudo add-apt-repository ppa:vicamo/ppa-1891405
sudo apt-get update
sudo apt upgrade
sudo reboot

After reboot I enabled WiFi and disabled Wired networking.

Wifi ran for 20 minutes before disconnecting.

Dmesg:
[ 97.823914] pcieport 0000:04:02.0: BAR 15: failed to assign [mem size 0x00200000 64bit pref]
[ 1339.858946] ath10k_pci 0000:02:00.0: failed to receive scan abortion completion: timed out

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