I was hoping a firmware update would solve the problem, but now it is significantly worse. The crashes happen so frequently that the machine locks up for a minute or two. Even the capslock light on the keyboard becomes unresponsive. This usually happens just after boot or coming out of suspend, but not always. $ uname -a Linux evenedric 5.3.0-19-generic #20-Ubuntu SMP Fri Oct 18 09:04:39 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux $ fwupdmgr get-devices 20FBCTO1WW System Firmware DeviceId: [redacted] Guid: [redacted] Plugin: uefi Flags: internal|updatable|require-ac|supported|registered|needs-reboot Version: 0.1.42 VersionLowest: 0.1.31 VersionFormat: triplet Icon: computer Created: 2019-11-12 UEFI Device Firmware DeviceId: [redacted] Guid: [redacted] Plugin: uefi Flags: internal|updatable|require-ac|supported|registered|needs-reboot Version: 184.65.3590 VersionLowest: 0.0.1 VersionFormat: triplet Icon: audio-card Created: 2019-11-12 UEFI Device Firmware DeviceId: [redacted] Guid: [redacted] Plugin: uefi Flags: internal|updatable|require-ac|supported|registered|needs-reboot Version: 0.1.12 VersionLowest: 0.0.1 VersionFormat: triplet Icon: audio-card Created: 2019-11-12 UpdateState: success $ iw reg get global country US: DFS-FCC (2402 - 2472 @ 40), (N/A, 30), (N/A) (5170 - 5250 @ 80), (N/A, 23), (N/A), AUTO-BW (5250 - 5330 @ 80), (N/A, 23), (0 ms), DFS, AUTO-BW (5490 - 5730 @ 160), (N/A, 23), (0 ms), DFS (5735 - 5835 @ 80), (N/A, 30), (N/A) (57240 - 63720 @ 2160), (N/A, 40), (N/A) phy#0 (self-managed) country 00: DFS-UNSET (2402 - 2437 @ 40), (6, 22), (N/A), AUTO-BW, NO-HT40MINUS, NO-80MHZ, NO-160MHZ (2422 - 2462 @ 40), (6, 22), (N/A), AUTO-BW, NO-80MHZ, NO-160MHZ (2447 - 2482 @ 40), (6, 22), (N/A), AUTO-BW, NO-HT40PLUS, NO-80MHZ, NO-160MHZ (5170 - 5190 @ 80), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN (5190 - 5210 @ 80), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN (5210 - 5230 @ 80), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN (5230 - 5250 @ 80), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN (5250 - 5270 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN (5270 - 5290 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN (5290 - 5310 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN (5310 - 5330 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN (5490 - 5510 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN (5510 - 5530 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN (5530 - 5550 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN (5550 - 5570 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN (5570 - 5590 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN (5590 - 5610 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN (5610 - 5630 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN (5630 - 5650 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN (5650 - 5670 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN (5670 - 5690 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN (5690 - 5710 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN (5710 - 5730 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN (5735 - 5755 @ 80), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN (5755 - 5775 @ 80), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN (5775 - 5795 @ 80), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN (5795 - 5815 @ 80), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN (5815 - 5835 @ 20), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-HT40PLUS, NO-80MHZ, NO-160MHZ, PASSIVE-SCAN [ 439.402427] ------------[ cut here ]------------ [ 439.402469] WARNING: CPU: 3 PID: 157 at drivers/net/wireless/intel/iwlwifi/mvm/scan.c:1874 iwl_mvm_rx_umac_scan_complete_notif.cold+0xc/0x13 [iwlmvm] [ 439.402470] Modules linked in: ccm rfcomm xt_MASQUERADE nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo iptable_nat xt_addrtype iptable_filter bpfilter xt_conntrack nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c br_netfilter bridge stp llc aufs cmac bnep nls_iso8859_1 intel_rapl_msr snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core mei_hdcp snd_soc_skl_ipc snd_soc_sst_ipc snd_hda_codec_hdmi snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi snd_hda_codec_conexant snd_hda_codec_generic snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep intel_rapl_common snd_pcm x86_pkg_temp_thermal intel_powerclamp iwlmvm coretemp mac80211 kvm_intel snd_seq_midi libarc4 snd_seq_midi_event kvm uvcvideo snd_rawmidi btusb btrtl irqbypass btbcm videobuf2_vmalloc btintel videobuf2_memops iwlwifi intel_cstate videobuf2_v4l2 intel_rapl_perf snd_seq input_leds joydev wmi_bmof videobuf2_common bluetooth hid_sensor_accel_3d snd_seq_device videodev [ 439.402498] hid_sensor_trigger industrialio_triggered_buffer thinkpad_acpi serio_raw sparse_keymap mc kfifo_buf snd_timer ecdh_generic ecc hid_sensor_iio_common nvram ledtrig_audio industrialio cfg80211 intel_xhci_usb_role_switch snd roles rtsx_pci_ms mei_me intel_pch_thermal memstick mei cros_ec_ishtp cros_ec_core soundcore mac_hid sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 hid_sensor_custom hid_sensor_hub hid_generic intel_ishtp_loader intel_ishtp_hid hid crct10dif_pclmul crc32_pclmul ghash_clmulni_intel rtsx_pci_sdmmc i915 nvme aesni_intel i2c_algo_bit drm_kms_helper aes_x86_64 syscopyarea crypto_simd e1000e psmouse sysfillrect nvme_core cryptd sysimgblt rtsx_pci fb_sys_fops glue_helper i2c_i801 intel_ish_ipc intel_ishtp drm wmi video [ 439.402526] CPU: 3 PID: 157 Comm: kworker/3:2 Tainted: G W 5.3.0-19-generic #20-Ubuntu [ 439.402527] Hardware name: LENOVO 20FBCTO1WW/20FBCTO1WW, BIOS N1FET68W (1.42 ) 03/13/2019 [ 439.402535] Workqueue: events iwl_mvm_async_handlers_wk [iwlmvm] [ 439.402545] RIP: 0010:iwl_mvm_rx_umac_scan_complete_notif.cold+0xc/0x13 [iwlmvm] [ 439.402547] Code: 48 c7 c7 00 f9 bf c0 e8 df 9c 11 c6 0f 0b 49 8b 47 10 44 8b a0 9c 00 00 00 e9 a2 3e fe ff 48 c7 c7 00 f9 bf c0 e8 c1 9c 11 c6 <0f> 0b e9 dc 43 fe ff 48 c7 c7 00 f9 bf c0 e8 ae 9c 11 c6 0f 0b 41 [ 439.402547] RSP: 0018:ffffa1810027fdd0 EFLAGS: 00010246 [ 439.402549] RAX: 0000000000000024 RBX: ffff938887bce040 RCX: 0000000000000006 [ 439.402549] RDX: 0000000000000000 RSI: 0000000000000082 RDI: ffff938891397440 [ 439.402550] RBP: ffffa1810027fe08 R08: 000000000000085f R09: 0000000000000004 [ 439.402551] R10: 0000000000000000 R11: 0000000000000001 R12: ffffa1810027fe20 [ 439.402551] R13: ffff9388804b1e28 R14: 0000000000000000 R15: ffff938722a11e00 [ 439.402553] FS: 0000000000000000(0000) GS:ffff938891380000(0000) knlGS:0000000000000000 [ 439.402554] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 439.402554] CR2: 0000348da53f4000 CR3: 000000028640a006 CR4: 00000000003606e0 [ 439.402555] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 439.402556] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 439.402556] Call Trace: [ 439.402564] iwl_mvm_async_handlers_wk+0xb0/0x140 [iwlmvm] [ 439.402567] process_one_work+0x1db/0x380 [ 439.402568] worker_thread+0x4d/0x400 [ 439.402571] kthread+0x104/0x140 [ 439.402572] ? process_one_work+0x380/0x380 [ 439.402574] ? kthread_park+0x80/0x80 [ 439.402576] ret_from_fork+0x35/0x40 [ 439.402578] ---[ end trace 37ab392142ee0182 ]--- [ 440.034322] iwlwifi 0000:04:00.0: Applying debug destination EXTERNAL_DRAM [ 440.183609] iwlwifi 0000:04:00.0: Applying debug destination EXTERNAL_DRAM [ 440.272261] iwlwifi 0000:04:00.0: FW already configured (0) - re-configuring [ 440.449987] wlp4s0: authenticate with d4:5d:df:d9:53:20 [ 440.452380] wlp4s0: send auth to d4:5d:df:d9:53:20 (try 1/3) [ 440.563468] wlp4s0: send auth to d4:5d:df:d9:53:20 (try 2/3) [ 440.672306] wlp4s0: send auth to d4:5d:df:d9:53:20 (try 3/3) [ 440.678650] wlp4s0: authenticated [ 440.679575] wlp4s0: associate with d4:5d:df:d9:53:20 (try 1/3) [ 440.685667] wlp4s0: RX AssocResp from d4:5d:df:d9:53:20 (capab=0x431 status=0 aid=9) [ 440.699092] wlp4s0: associated [ 440.730501] IPv6: ADDRCONF(NETDEV_CHANGE): wlp4s0: link becomes ready [ 462.795579] wlp4s0: deauthenticating from d4:5d:df:d9:53:20 by local choice (Reason: 3=DEAUTH_LEAVING) [ 466.289576] iwlwifi 0000:04:00.0: Microcode SW error detected. Restarting 0x2000000. [ 466.289803] iwlwifi 0000:04:00.0: Start IWL Error Log Dump: [ 466.289810] iwlwifi 0000:04:00.0: Status: 0x00000080, count: 6 [ 466.289815] iwlwifi 0000:04:00.0: Loaded firmware version: 36.77d01142.0 [ 466.289821] iwlwifi 0000:04:00.0: 0x00000038 | BAD_COMMAND [ 466.289826] iwlwifi 0000:04:00.0: 0x000002F0 | trm_hw_status0 [ 466.289831] iwlwifi 0000:04:00.0: 0x00000000 | trm_hw_status1 [ 466.289836] iwlwifi 0000:04:00.0: 0x00024200 | branchlink2 [ 466.289840] iwlwifi 0000:04:00.0: 0x00039872 | interruptlink1 [ 466.289845] iwlwifi 0000:04:00.0: 0x00000000 | interruptlink2 [ 466.289849] iwlwifi 0000:04:00.0: 0x00990405 | data1 [ 466.289853] iwlwifi 0000:04:00.0: 0x0000009A | data2 [ 466.289858] iwlwifi 0000:04:00.0: 0x0000009A | data3 [ 466.289863] iwlwifi 0000:04:00.0: 0x3EC11584 | beacon time [ 466.289867] iwlwifi 0000:04:00.0: 0x014D2A7C | tsf low [ 466.289872] iwlwifi 0000:04:00.0: 0x00000098 | tsf hi [ 466.289876] iwlwifi 0000:04:00.0: 0x00000000 | time gp1 [ 466.289880] iwlwifi 0000:04:00.0: 0x018D751D | time gp2 [ 466.289885] iwlwifi 0000:04:00.0: 0x00000001 | uCode revision type [ 466.289890] iwlwifi 0000:04:00.0: 0x00000024 | uCode version major [ 466.289894] iwlwifi 0000:04:00.0: 0x77D01142 | uCode version minor [ 466.289899] iwlwifi 0000:04:00.0: 0x00000201 | hw version [ 466.289903] iwlwifi 0000:04:00.0: 0x00489008 | board version [ 466.289908] iwlwifi 0000:04:00.0: 0x00990405 | hcmd [ 466.289912] iwlwifi 0000:04:00.0: 0x00022080 | isr0 [ 466.289916] iwlwifi 0000:04:00.0: 0x00000000 | isr1 [ 466.289921] iwlwifi 0000:04:00.0: 0x28201802 | isr2 [ 466.289925] iwlwifi 0000:04:00.0: 0x00400080 | isr3 [ 466.289929] iwlwifi 0000:04:00.0: 0x00000000 | isr4 [ 466.289933] iwlwifi 0000:04:00.0: 0x009801C8 | last cmd Id [ 466.289938] iwlwifi 0000:04:00.0: 0x00000000 | wait_event [ 466.289943] iwlwifi 0000:04:00.0: 0x0000D7AF | l2p_control [ 466.289947] iwlwifi 0000:04:00.0: 0x00000000 | l2p_duration [ 466.289951] iwlwifi 0000:04:00.0: 0x00000000 | l2p_mhvalid [ 466.289956] iwlwifi 0000:04:00.0: 0x00000000 | l2p_addr_match [ 466.289960] iwlwifi 0000:04:00.0: 0x0000008F | lmpm_pmg_sel [ 466.289965] iwlwifi 0000:04:00.0: 0x08081421 | timestamp [ 466.289969] iwlwifi 0000:04:00.0: 0x00002028 | flow_handler [ 466.290145] iwlwifi 0000:04:00.0: Start IWL Error Log Dump: [ 466.290149] iwlwifi 0000:04:00.0: Status: 0x00000080, count: 7 [ 466.290154] iwlwifi 0000:04:00.0: 0x00000070 | NMI_INTERRUPT_LMAC_FATAL [ 466.290159] iwlwifi 0000:04:00.0: 0x00000000 | umac branchlink1 [ 466.290163] iwlwifi 0000:04:00.0: 0xC0086B38 | umac branchlink2 [ 466.290168] iwlwifi 0000:04:00.0: 0xC0083D08 | umac interruptlink1 [ 466.290172] iwlwifi 0000:04:00.0: 0xC0087F52 | umac interruptlink2 [ 466.290176] iwlwifi 0000:04:00.0: 0x00000800 | umac data1 [ 466.290181] iwlwifi 0000:04:00.0: 0xC0087F52 | umac data2 [ 466.290185] iwlwifi 0000:04:00.0: 0xDEADBEEF | umac data3 [ 466.290189] iwlwifi 0000:04:00.0: 0x00000024 | umac major [ 466.290194] iwlwifi 0000:04:00.0: 0x77D01142 | umac minor [ 466.290198] iwlwifi 0000:04:00.0: 0xC0887EE0 | frame pointer [ 466.290202] iwlwifi 0000:04:00.0: 0xC0887EE0 | stack pointer [ 466.290207] iwlwifi 0000:04:00.0: 0x00990405 | last host cmd [ 466.290211] iwlwifi 0000:04:00.0: 0x00004008 | isr status reg [ 466.290341] iwlwifi 0000:04:00.0: Fseq Registers: [ 466.290397] iwlwifi 0000:04:00.0: 0x88580D9D | FSEQ_ERROR_CODE [ 466.290454] iwlwifi 0000:04:00.0: 0x2FFE3709 | FSEQ_TOP_INIT_VERSION [ 466.290510] iwlwifi 0000:04:00.0: 0x940068B8 | FSEQ_CNVIO_INIT_VERSION [ 466.290566] iwlwifi 0000:04:00.0: 0x0000A056 | FSEQ_OTP_VERSION [ 466.290623] iwlwifi 0000:04:00.0: 0xDA317933 | FSEQ_TOP_CONTENT_VERSION [ 466.290679] iwlwifi 0000:04:00.0: 0x5DCB82E7 | FSEQ_ALIVE_TOKEN [ 466.290735] iwlwifi 0000:04:00.0: 0x713C97B7 | FSEQ_CNVI_ID [ 466.290791] iwlwifi 0000:04:00.0: 0x7CDA8738 | FSEQ_CNVR_ID [ 466.290848] iwlwifi 0000:04:00.0: 0x03000000 | CNVI_AUX_MISC_CHIP [ 466.290907] iwlwifi 0000:04:00.0: 0x0BADCAFE | CNVR_AUX_MISC_CHIP [ 466.290966] iwlwifi 0000:04:00.0: 0x0BADCAFE | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM [ 466.291026] iwlwifi 0000:04:00.0: 0x0BADCAFE | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR [ 466.291093] iwlwifi 0000:04:00.0: Collecting data: trigger 2 fired. [ 466.291103] ieee80211 phy0: Hardware restart was requested [ 466.291192] iwlwifi 0000:04:00.0: FW error in SYNC CMD GEO_TX_POWER_LIMIT [ 466.291205] CPU: 2 PID: 156 Comm: kworker/2:2 Tainted: G W 5.3.0-19-generic #20-Ubuntu [ 466.291208] Hardware name: LENOVO 20FBCTO1WW/20FBCTO1WW, BIOS N1FET68W (1.42 ) 03/13/2019 [ 466.291250] Workqueue: events iwl_mvm_async_handlers_wk [iwlmvm] [ 466.291257] Call Trace: [ 466.291273] dump_stack+0x63/0x8a [ 466.291315] iwl_pcie_send_hcmd_sync+0x497/0x4b0 [iwlwifi] [ 466.291326] ? wait_woken+0x80/0x80 [ 466.291363] iwl_trans_pcie_send_hcmd+0x34/0xe0 [iwlwifi] [ 466.291404] iwl_trans_send_cmd+0x5d/0xc0 [iwlwifi] [ 466.291444] iwl_mvm_send_cmd+0x34/0x90 [iwlmvm] [ 466.291475] iwl_mvm_get_sar_geo_profile+0xae/0x130 [iwlmvm] [ 466.291511] iwl_mvm_rx_chub_update_mcc+0x103/0x1a0 [iwlmvm] [ 466.291540] iwl_mvm_async_handlers_wk+0xb0/0x140 [iwlmvm] [ 466.291548] process_one_work+0x1db/0x380 [ 466.291554] worker_thread+0x4d/0x400 [ 466.291563] kthread+0x104/0x140 [ 466.291568] ? process_one_work+0x380/0x380 [ 466.291575] ? kthread_park+0x80/0x80 [ 466.291584] ret_from_fork+0x35/0x40 [ 466.291674] iwlwifi 0000:04:00.0: Failed to get geographic profile info -5 [ 466.291710] ------------[ cut here ]------------ [ 466.291825] WARNING: CPU: 2 PID: 156 at drivers/net/wireless/intel/iwlwifi/mvm/scan.c:1874 iwl_mvm_rx_umac_scan_complete_notif.cold+0xc/0x13 [iwlmvm] [ 466.291834] Modules linked in: ccm rfcomm xt_MASQUERADE nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo iptable_nat xt_addrtype iptable_filter bpfilter xt_conntrack nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c br_netfilter bridge stp llc aufs cmac bnep nls_iso8859_1 intel_rapl_msr snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core mei_hdcp snd_soc_skl_ipc snd_soc_sst_ipc snd_hda_codec_hdmi snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi snd_hda_codec_conexant snd_hda_codec_generic snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep intel_rapl_common snd_pcm x86_pkg_temp_thermal intel_powerclamp iwlmvm coretemp mac80211 kvm_intel snd_seq_midi libarc4 snd_seq_midi_event kvm uvcvideo snd_rawmidi btusb btrtl irqbypass btbcm videobuf2_vmalloc btintel videobuf2_memops iwlwifi intel_cstate videobuf2_v4l2 intel_rapl_perf snd_seq input_leds joydev wmi_bmof videobuf2_common bluetooth hid_sensor_accel_3d snd_seq_device videodev [ 466.292038] hid_sensor_trigger industrialio_triggered_buffer thinkpad_acpi serio_raw sparse_keymap mc kfifo_buf snd_timer ecdh_generic ecc hid_sensor_iio_common nvram ledtrig_audio industrialio cfg80211 intel_xhci_usb_role_switch snd roles rtsx_pci_ms mei_me intel_pch_thermal memstick mei cros_ec_ishtp cros_ec_core soundcore mac_hid sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 hid_sensor_custom hid_sensor_hub hid_generic intel_ishtp_loader intel_ishtp_hid hid crct10dif_pclmul crc32_pclmul ghash_clmulni_intel rtsx_pci_sdmmc i915 nvme aesni_intel i2c_algo_bit drm_kms_helper aes_x86_64 syscopyarea crypto_simd e1000e psmouse sysfillrect nvme_core cryptd sysimgblt rtsx_pci fb_sys_fops glue_helper i2c_i801 intel_ish_ipc intel_ishtp drm wmi video [ 466.292176] CPU: 2 PID: 156 Comm: kworker/2:2 Tainted: G W 5.3.0-19-generic #20-Ubuntu [ 466.292180] Hardware name: LENOVO 20FBCTO1WW/20FBCTO1WW, BIOS N1FET68W (1.42 ) 03/13/2019 [ 466.292220] Workqueue: events iwl_mvm_async_handlers_wk [iwlmvm] [ 466.292270] RIP: 0010:iwl_mvm_rx_umac_scan_complete_notif.cold+0xc/0x13 [iwlmvm] [ 466.292279] Code: 48 c7 c7 00 f9 bf c0 e8 df 9c 11 c6 0f 0b 49 8b 47 10 44 8b a0 9c 00 00 00 e9 a2 3e fe ff 48 c7 c7 00 f9 bf c0 e8 c1 9c 11 c6 <0f> 0b e9 dc 43 fe ff 48 c7 c7 00 f9 bf c0 e8 ae 9c 11 c6 0f 0b 41 [ 466.292284] RSP: 0018:ffffa18100277dd0 EFLAGS: 00010246 [ 466.292292] RAX: 0000000000000024 RBX: ffff938880624780 RCX: 0000000000000006 [ 466.292295] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff938891317440 [ 466.292301] RBP: ffffa18100277e08 R08: 00000000000008e3 R09: 0000000000000004 [ 466.292304] R10: 0000000000000000 R11: 0000000000000001 R12: ffffa18100277e20 [ 466.292308] R13: ffff9388804b1e28 R14: 0000000000000000 R15: ffff938830f78c00 [ 466.292314] FS: 0000000000000000(0000) GS:ffff938891300000(0000) knlGS:0000000000000000 [ 466.292318] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 466.292323] CR2: 00007f0029eda860 CR3: 000000028640a003 CR4: 00000000003606e0 [ 466.292328] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 466.292333] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 466.292336] Call Trace: [ 466.292378] iwl_mvm_async_handlers_wk+0xb0/0x140 [iwlmvm] [ 466.292390] process_one_work+0x1db/0x380 [ 466.292398] worker_thread+0x4d/0x400 [ 466.292410] kthread+0x104/0x140 [ 466.292416] ? process_one_work+0x380/0x380 [ 466.292425] ? kthread_park+0x80/0x80 [ 466.292436] ret_from_fork+0x35/0x40 [ 466.292446] ---[ end trace 37ab392142ee0183 ]---