iwlwifi 0000:01:00.0: Error sending REPLY_SCAN_ABORT_CMD: time out after 2000ms.

[Cristian Aravena Romero]

dmesg:
[15006.993941] iwlwifi 0000:01:00.0: Error sending REPLY_SCAN_ABORT_CMD: time out after 2000ms.
[15006.993950] iwlwifi 0000:01:00.0: Current CMD queue read_ptr 32 write_ptr 33
[15006.993981] iwlwifi 0000:01:00.0: Loaded firmware version: 18.168.6.1
[15006.994122] iwlwifi 0000:01:00.0: Start IWL Error Log Dump:
[15006.994125] iwlwifi 0000:01:00.0: Status: 0x000003CC, count: 6
[15006.994139] iwlwifi 0000:01:00.0: 0x00000084 | NMI_INTERRUPT_UNKNOWN
[15006.994144] iwlwifi 0000:01:00.0: 0x00010564 | uPc
[15006.994148] iwlwifi 0000:01:00.0: 0x0001054E | branchlink1
[15006.994152] iwlwifi 0000:01:00.0: 0x00010580 | branchlink2
[15006.994157] iwlwifi 0000:01:00.0: 0x0000DBEA | interruptlink1
[15006.994161] iwlwifi 0000:01:00.0: 0x00012AF2 | interruptlink2
[15006.994165] iwlwifi 0000:01:00.0: 0x00000081 | data1
[15006.994169] iwlwifi 0000:01:00.0: 0x07030000 | data2
[15006.994173] iwlwifi 0000:01:00.0: 0x000260A4 | line
[15006.994178] iwlwifi 0000:01:00.0: 0x050018DC | beacon time
[15006.994182] iwlwifi 0000:01:00.0: 0x0020B724 | tsf low
[15006.994186] iwlwifi 0000:01:00.0: 0x00000000 | tsf hi
[15006.994190] iwlwifi 0000:01:00.0: 0x00000000 | time gp1
[15006.994194] iwlwifi 0000:01:00.0: 0x002A9515 | time gp2
[15006.994198] iwlwifi 0000:01:00.0: 0x00000000 | time gp3
[15006.994202] iwlwifi 0000:01:00.0: 0x754312A8 | uCode version
[15006.994207] iwlwifi 0000:01:00.0: 0x000000B0 | hw version
[15006.994211] iwlwifi 0000:01:00.0: 0x00484B00 | board version
[15006.994215] iwlwifi 0000:01:00.0: 0x0000001C | hcmd
[15006.994220] iwlwifi 0000:01:00.0: 0x27863040 | isr0
[15006.994228] iwlwifi 0000:01:00.0: 0x1189E000 | isr1
[15006.994241] iwlwifi 0000:01:00.0: 0x00000E02 | isr2
[15006.994245] iwlwifi 0000:01:00.0: 0x0143FCC3 | isr3
[15006.994249] iwlwifi 0000:01:00.0: 0x00000000 | isr4
[15006.994252] iwlwifi 0000:01:00.0: 0x00000110 | isr_pref
[15006.994256] iwlwifi 0000:01:00.0: 0x000260A4 | wait_event
[15006.994259] iwlwifi 0000:01:00.0: 0x0000022B | l2p_control
[15006.994273] iwlwifi 0000:01:00.0: 0x000007D8 | l2p_duration
[15006.994280] iwlwifi 0000:01:00.0: 0x00000003 | l2p_mhvalid
[15006.994286] iwlwifi 0000:01:00.0: 0x00000000 | l2p_addr_match
[15006.994292] iwlwifi 0000:01:00.0: 0x00000005 | lmpm_pmg_sel
[15006.994299] iwlwifi 0000:01:00.0: 0x13011136 | timestamp
[15006.994305] iwlwifi 0000:01:00.0: 0x000090A0 | flow_handler
[15006.994379] iwlwifi 0000:01:00.0: Start IWL Event Log Dump: display last 1 entries
[15006.994408] iwlwifi 0000:01:00.0: EVT_LOGT:0002790673:0x0000010c:0123
[15006.994450] iwlwifi 0000:01:00.0: Fw not loaded - dropping CMD: 10
[15006.994459] iwlwifi 0000:01:00.0: Error clearing ASSOC_MSK on BSS (-5)
[15006.994485] iwlwifi 0000:01:00.0: Microcode SW error detected. Restarting 0x2000000.
[15006.994492] iwlwifi 0000:01:00.0: CSR values:
[15006.994507] iwlwifi 0000:01:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
[15006.994515] iwlwifi 0000:01:00.0: CSR_HW_IF_CONFIG_REG: 0X00484b00
[15006.994532] iwlwifi 0000:01:00.0: CSR_INT_COALESCING: 0X00000040
[15006.994540] iwlwifi 0000:01:00.0: CSR_INT: 0X00000000
[15006.994550] iwlwifi 0000:01:00.0: CSR_INT_MASK: 0X00000000
[15006.994561] iwlwifi 0000:01:00.0: CSR_FH_INT_STATUS: 0X00000000
[15006.994571] iwlwifi 0000:01:00.0: CSR_GPIO_IN: 0X00000030
[15006.994581] iwlwifi 0000:01:00.0: CSR_RESET: 0X00000000
[15006.994594] iwlwifi 0000:01:00.0: CSR_GP_CNTRL: 0X080403cd
[15006.994602] iwlwifi 0000:01:00.0: CSR_HW_REV: 0X000000b0
[15006.994613] iwlwifi 0000:01:00.0: CSR_EEPROM_REG: 0Xd4540ffd
[15006.994621] iwlwifi 0000:01:00.0: CSR_EEPROM_GP: 0X80000801
[15006.994630] iwlwifi 0000:01:00.0: CSR_OTP_GP_REG: 0X00030001
[15006.994648] iwlwifi 0000:01:00.0: CSR_GIO_REG: 0X00080046
[15006.994660] iwlwifi 0000:01:00.0: CSR_GP_UCODE_REG: 0X00000000
[15006.994671] iwlwifi 0000:01:00.0: CSR_GP_DRIVER_REG: 0X00000000
[15006.994684] iwlwifi 0000:01:00.0: CSR_UCODE_DRV_GP1: 0X00000000
[15006.994696] iwlwifi 0000:01:00.0: CSR_UCODE_DRV_GP2: 0X00000000
[15006.994708] iwlwifi 0000:01:00.0: CSR_LED_REG: 0X00000018
[15006.994719] iwlwifi 0000:01:00.0: CSR_DRAM_INT_TBL_REG: 0X00000000
[15006.994731] iwlwifi 0000:01:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
[15006.994743] iwlwifi 0000:01:00.0: CSR_ANA_PLL_CFG: 0X00000000
[15006.994755] iwlwifi 0000:01:00.0: CSR_MONITOR_STATUS_REG: 0X03f7f71f
[15006.994766] iwlwifi 0000:01:00.0: CSR_HW_REV_WA_REG: 0X0001001a
[15006.994778] iwlwifi 0000:01:00.0: CSR_DBG_HPET_MEM_REG: 0X82000500
[15006.994785] iwlwifi 0000:01:00.0: FH register values:
[15007.015291] ------------[ cut here ]------------
[15007.015313] WARNING: CPU: 3 PID: 437 at /build/linux-H00C1E/linux-4.10.0/drivers/net/wireless/intel/iwlwifi/pcie/trans.c:1891 iwl_trans_pcie_grab_nic_access+0xeb/0xf0 [iwlwifi]
[15007.015315] Timeout waiting for hardware access (CSR_GP_CNTRL 0x080003d8)
[15007.015316] Modules linked in: rfcomm xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat libcrc32c nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter cmac bnep binfmt_misc intel_rapl x86_pkg_temp_thermal intel_powerclamp samsung_laptop coretemp kvm_intel snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic btusb btrtl snd_hda_intel kvm snd_hda_codec btbcm btintel irqbypass crct10dif_pclmul crc32_pclmul uvcvideo snd_hda_core ghash_clmulni_intel cryptd snd_hwdep bluetooth videobuf2_vmalloc snd_pcm videobuf2_memops intel_cstate videobuf2_v4l2 joydev intel_rapl_perf snd_seq_midi input_leds videobuf2_core snd_seq_midi_event
[15007.015376] arc4 serio_raw snd_rawmidi videodev iwldvm mac80211 media snd_seq lpc_ich iwlwifi snd_seq_device snd_timer cfg80211 mei_me snd mei shpchp soundcore dell_smo8800 mac_hid parport_pc ppdev lp parport ip_tables x_tables autofs4 btrfs xor raid6_pq hid_generic usbhid hid i915 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect psmouse sysimgblt fb_sys_fops ahci drm r8169 libahci mii wmi video fjes
[15007.015426] CPU: 3 PID: 437 Comm: irq/29-iwlwifi Not tainted 4.10.0-8-generic #10-Ubuntu
[15007.015428] Hardware name: SAMSUNG ELECTRONICS CO., LTD. 530U3C/530U4C/SAMSUNG_NP1234567890, BIOS P14AAJ 04/15/2013
[15007.015430] Call Trace:
[15007.015440] dump_stack+0x63/0x81
[15007.015443] __warn+0xcb/0xf0
[15007.015447] warn_slowpath_fmt+0x5f/0x80
[15007.015457] ? iwl_read32+0x1f/0x80 [iwlwifi]
[15007.015469] iwl_trans_pcie_grab_nic_access+0xeb/0xf0 [iwlwifi]
[15007.015479] iwl_read_direct32+0x32/0x80 [iwlwifi]
[15007.015489] iwl_dump_fh+0x268/0x390 [iwlwifi]
[15007.015502] iwl_pcie_irq_handle_error+0x39/0x160 [iwlwifi]
[15007.015513] iwl_pcie_irq_handler+0x3ae/0xa90 [iwlwifi]
[15007.015518] ? irq_finalize_oneshot.part.35+0xf0/0xf0
[15007.015521] irq_thread_fn+0x20/0x50
[15007.015524] irq_thread+0x12f/0x1c0
[15007.015529] ? __schedule+0x23b/0x6f0
[15007.015532] ? irq_forced_thread_fn+0x70/0x70
[15007.015537] kthread+0x101/0x140
[15007.015540] ? irq_affinity_notify+0x130/0x130
[15007.015544] ? kthread_create_on_node+0x60/0x60
[15007.015548] ret_from_fork+0x2c/0x40
[15007.015551] ---[ end trace 9d7c4bbad3de1700 ]---
[15007.015616] iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X5a5a5a5a
[15007.043823] iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X5a5a5a5a
[15007.064424] iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_WPTR: 0X5a5a5a5a
[15007.064617] ieee80211 phy0: Hardware restart was requested
[15007.065028] usb 2-1.5: USB disconnect, device number 5
[15007.084748] iwlwifi 0000:01:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X5a5a5a5a
[15007.105240] iwlwifi 0000:01:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X5a5a5a5a
[15007.125572] iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X5a5a5a5a
[15007.145985] iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X5a5a5a5a
[15007.166355] iwlwifi 0000:01:00.0: FH_TSSR_TX_STATUS_REG: 0X5a5a5a5a
[15007.186624] iwlwifi 0000:01:00.0: FH_TSSR_TX_ERROR_REG: 0X5a5a5a5a
[15007.186633] iwlwifi 0000:01:00.0: Disabled INTA bits 0x02000000 were pending
[15088.356937] iwlwifi 0000:01:00.0: RF_KILL bit toggled to enable radio.
[15088.360203] iwlwifi 0000:01:00.0: L1 Disabled - LTR Disabled
[15088.366916] iwlwifi 0000:01:00.0: L1 Disabled - LTR Disabled
[15088.367021] iwlwifi 0000:01:00.0: Radio type=0x2-0x1-0x0
[15088.649495] iwlwifi 0000:01:00.0: L1 Disabled - LTR Disabled
[15088.656218] iwlwifi 0000:01:00.0: L1 Disabled - LTR Disabled
[15088.656321] iwlwifi 0000:01:00.0: Radio type=0x2-0x1-0x0

ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: linux-image-4.10.0-8-generic 4.10.0-8.10
ProcVersionSignature: Ubuntu 4.10.0-8.10-generic 4.10.0-rc8
Uname: Linux 4.10.0-8-generic x86_64
ApportVersion: 2.20.4-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/pcmC0D0p: caravena 2191 F...m pulseaudio
 /dev/snd/controlC0: caravena 2191 F.... pulseaudio
CurrentDesktop: GNOME
Date: Wed Feb 22 19:51:52 2017
HibernationDevice: RESUME=UUID=360bd2d2-4f44-4311-86d6-4781ac81ee87
InstallationDate: Installed on 2015-07-26 (577 days ago)
InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Alpha amd64 (20150723)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 530U3C/530U4C
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.10.0-8-generic root=UUID=4f4435ca-b877-47a5-9065-3dd624c0514e ro rootflags=subvol=@ quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.10.0-8-generic N/A
 linux-backports-modules-4.10.0-8-generic N/A
 linux-firmware 1.163
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/15/2013
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: P14AAJ
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: SAMSUNG_NP1234567890
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP14AAJ:bd04/15/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn530U3C/530U4C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.name: 530U3C/530U4C
dmi.product.version: 0.1
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[RainerT (tr-ml)]

I see this on an Lenovo X1 Gen1.
$ uname -a
Linux lt0972 4.10.0-9-generic #11-Ubuntu SMP Mon Feb 20 13:47:35 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

Mar 8 10:11:47 lt0972 kernel: [ 18.938412] iwlwifi 0000:03:00.0: Error sending REPLY_SCAN_ABORT_CMD: time out after 2000ms.
Mar 8 10:11:47 lt0972 kernel: [ 18.938421] iwlwifi 0000:03:00.0: Current CMD queue read_ptr 30 write_ptr 31
Mar 8 10:11:47 lt0972 kernel: [ 18.938504] iwlwifi 0000:03:00.0: Loaded firmware version: 18.168.6.1
Mar 8 10:11:47 lt0972 kernel: [ 18.938903] iwlwifi 0000:03:00.0: Start IWL Error Log Dump:
Mar 8 10:11:47 lt0972 kernel: [ 18.938907] iwlwifi 0000:03:00.0: Status: 0x000003CC, count: 6
Mar 8 10:11:47 lt0972 kernel: [ 18.938911] iwlwifi 0000:03:00.0: 0x00000084 | NMI_INTERRUPT_UNKNOWN
Mar 8 10:11:47 lt0972 kernel: [ 18.938914] iwlwifi 0000:03:00.0: 0x00010050 | uPc
Mar 8 10:11:47 lt0972 kernel: [ 18.938917] iwlwifi 0000:03:00.0: 0x0001001E | branchlink1
Mar 8 10:11:47 lt0972 kernel: [ 18.938919] iwlwifi 0000:03:00.0: 0x00010090 | branchlink2
Mar 8 10:11:47 lt0972 kernel: [ 18.938922] iwlwifi 0000:03:00.0: 0x0000D6BE | interruptlink1
Mar 8 10:11:47 lt0972 kernel: [ 18.938925] iwlwifi 0000:03:00.0: 0x00011DB8 | interruptlink2
Mar 8 10:11:47 lt0972 kernel: [ 18.938928] iwlwifi 0000:03:00.0: 0x00000081 | data1
Mar 8 10:11:47 lt0972 kernel: [ 18.938930] iwlwifi 0000:03:00.0: 0x07030000 | data2
Mar 8 10:11:47 lt0972 kernel: [ 18.938933] iwlwifi 0000:03:00.0: 0x000000F1 | line
Mar 8 10:11:47 lt0972 kernel: [ 18.938936] iwlwifi 0000:03:00.0: 0x0D00D8CB | beacon time
Mar 8 10:11:47 lt0972 kernel: [ 18.938939] iwlwifi 0000:03:00.0: 0x0051F735 | tsf low
Mar 8 10:11:47 lt0972 kernel: [ 18.938942] iwlwifi 0000:03:00.0: 0x00000000 | tsf hi
Mar 8 10:11:47 lt0972 kernel: [ 18.938944] iwlwifi 0000:03:00.0: 0x00000000 | time gp1
Mar 8 10:11:47 lt0972 kernel: [ 18.938947] iwlwifi 0000:03:00.0: 0x005C0F5E | time gp2
Mar 8 10:11:47 lt0972 kernel: [ 18.938950] iwlwifi 0000:03:00.0: 0x00000000 | time gp3
Mar 8 10:11:47 lt0972 kernel: [ 18.938953] iwlwifi 0000:03:00.0: 0x754312A8 | uCode version
Mar 8 10:11:47 lt0972 kernel: [ 18.938955] iwlwifi 0000:03:00.0: 0x000000B0 | hw version
Mar 8 10:11:47 lt0972 kernel: [ 18.938958] iwlwifi 0000:03:00.0: 0x00488700 | board version
Mar 8 10:11:47 lt0972 kernel: [ 18.938961] iwlwifi 0000:03:00.0: 0x0000001C | hcmd
Mar 8 10:11:47 lt0972 kernel: [ 18.938963] iwlwifi 0000:03:00.0: 0x27863040 | isr0
Mar 8 10:11:47 lt0972 kernel: [ 18.938966] iwlwifi 0000:03:00.0: 0x0101E000 | isr1
Mar 8 10:11:47 lt0972 kernel: [ 18.938969] iwlwifi 0000:03:00.0: 0x00000E02 | isr2
Mar 8 10:11:47 lt0972 kernel: [ 18.938971] iwlwifi 0000:03:00.0: 0x0143FCC3 | isr3
Mar 8 10:11:47 lt0972 kernel: [ 18.938974] iwlwifi 0000:03:00.0: 0x00000000 | isr4
Mar 8 10:11:47 lt0972 kernel: [ 18.938977] iwlwifi 0000:03:00.0: 0x00000110 | isr_pref
Mar 8 10:11:47 lt0972 kernel: [ 18.938979] iwlwifi 0000:03:00.0: 0x000000F1 | wait_event
Mar 8 10:11:47 lt0972 kernel: [ 18.938982] iwlwifi 0000:03:00.0: 0x000000D4 | l2p_control
Mar 8 10:11:47 lt0972 kernel: [ 18.938985] iwlwifi 0000:03:00.0: 0x0...

[RainerT (tr-ml)]

and part II:
Mar 8 10:11:47 lt0972 kernel: [ 18.997522] ------------[ cut here ]------------
Mar 8 10:11:47 lt0972 kernel: [ 18.997536] WARNING: CPU: 2 PID: 513 at /build/linux-xIyolH/linux-4.10.0/drivers/net/wireless/intel/iwlwifi/pcie/trans.c:1891 iwl_trans_pcie_grab_nic_access+0xeb/0x
f0 [iwlwifi]
Mar 8 10:11:47 lt0972 kernel: [ 18.997537] Timeout waiting for hardware access (CSR_GP_CNTRL 0x080003d8)
Mar 8 10:11:47 lt0972 kernel: [ 18.997538] Modules linked in: msr cmac bnep btusb btrtl btbcm btintel uvcvideo bluetooth videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev media cdc_mbim cdc_ncm usbnet cdc_acm mii cdc_wdm dm_crypt nls_iso8859_1 intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass arc4 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc iwldvm snd_hda_codec_hdmi mac80211 snd_hda_codec_realtek snd_hda_codec_generic aesni_intel aes_x86_64 snd_hda_intel crypto_simd glue_helper cryptd snd_seq_midi intel_cstate snd_hda_codec intel_rapl_perf snd_seq_midi_event snd_hda_core snd_hwdep snd_rawmidi joydev iwlwifi input_leds snd_seq serio_raw snd_pcm thinkpad_acpi cfg80211 nvram lpc_ich mei_me shpchp mei snd_seq_device snd_timer snd soundcore soc_button_array mac_hid
Mar 8 10:11:47 lt0972 kernel: [ 18.997586] intel_smartconnect parport_pc ppdev lp parport ip_tables x_tables autofs4 i915 psmouse i2c_algo_bit drm_kms_helper ahci syscopyarea sysfillrect libahci sysimgblt sdhci_pci fb_sys_fops sdhci drm wmi fjes video
Mar 8 10:11:47 lt0972 kernel: [ 18.997603] CPU: 2 PID: 513 Comm: irq/30-iwlwifi Not tainted 4.10.0-9-generic #11-Ubuntu
Mar 8 10:11:47 lt0972 kernel: [ 18.997604] Hardware name: LENOVO 3460CJG/3460CJG, BIOS G6ETB5WW (2.75 ) 09/01/2016
Mar 8 10:11:47 lt0972 kernel: [ 18.997606] Call Trace:
Mar 8 10:11:47 lt0972 kernel: [ 18.997613] dump_stack+0x63/0x81
Mar 8 10:11:47 lt0972 kernel: [ 18.997615] __warn+0xcb/0xf0
Mar 8 10:11:47 lt0972 kernel: [ 18.997617] warn_slowpath_fmt+0x5f/0x80
Mar 8 10:11:47 lt0972 kernel: [ 18.997623] ? iwl_read32+0x1f/0x80 [iwlwifi]
Mar 8 10:11:47 lt0972 kernel: [ 18.997630] iwl_trans_pcie_grab_nic_access+0xeb/0xf0 [iwlwifi]
Mar 8 10:11:47 lt0972 kernel: [ 18.997636] iwl_read_direct32+0x32/0x80 [iwlwifi]
Mar 8 10:11:47 lt0972 kernel: [ 18.997642] iwl_dump_fh+0x268/0x390 [iwlwifi]
Mar 8 10:11:47 lt0972 kernel: [ 18.997649] iwl_pcie_irq_handle_error+0x39/0x160 [iwlwifi]
Mar 8 10:11:47 lt0972 kernel: [ 18.997656] iwl_pcie_irq_handler+0x3ae/0xa90 [iwlwifi]
Mar 8 10:11:47 lt0972 kernel: [ 18.997659] ? irq_finalize_oneshot.part.35+0xf0/0xf0
Mar 8 10:11:47 lt0972 kernel: [ 18.997661] irq_thread_fn+0x20/0x50
Mar 8 10:11:47 lt0972 kernel: [ 18.997663] irq_thread+0x12f/0x1c0
Mar 8 10:11:47 lt0972 kernel: [ 18.997667] ? __schedule+0x23b/0x6f0
Mar 8 10:11:47 lt0972 kernel: [ 18.997669] ? irq_forced_thread_fn+0x70/0x70
Mar 8 10:11:47 lt0972 kernel: [ 18.997671] kthread+0x101/0x140
Mar 8 10:11:47 lt0972 kernel: [ 18.997673] ? irq_affinity_notify+0x130/0x130
Mar 8 10:11:47 lt0972 kernel: [ 18.997676] ? kthread_create_on_node+0x60/0x60
Mar 8 10:11:47 lt0972 kernel: [ 18.9976...

[You-Sheng Yang (vicamo)]

https://bugzilla.redhat.com/show_bug.cgi?id=1802472, and https://bugzilla.kernel.org/show_bug.cgi?id=190281

[ALinuxUser (buntulongername-new)]

I have just experienced this problem for the first time (on, admittedly, Linux Mint) with kernel 5.8.0.

I note also that there is a report on the problem filed against the Linux kernel itself, here: https://bugzilla.kernel.org/show_bug.cgi?id=190281

Perhaps Ubuntu devs should engage with that report.