These are the part before the start of the error dump looping. One of the lines is giving a 'Microcode SW error'. Is this the cause????
Jun 30 22:46:07 sapporo kernel: [34465.678263] iwlwifi 0000:3b:00.0: Microcode SW error detected. Restarting 0x2000000. Syslog dump: Jun 30 22:46:06 sapporo kernel: [34464.164632] wlp59s0: cannot understand ECSA IE operating class, 0, ignoring Jun 30 22:46:06 sapporo wpa_supplicant[787]: wlp59s0: CTRL-EVENT-STARTED-CHANNEL-SWITCH freq=5540 ht_enabled=1 ch_offset=1 ch_width=80 MHz cf1=5530 cf2=0 Jun 30 22:46:06 sapporo kernel: [34464.267457] wlp59s0: cannot understand ECSA IE operating class, 0, ignoring Jun 30 22:46:06 sapporo kernel: [34464.369259] wlp59s0: cannot understand ECSA IE operating class, 0, ignoring Jun 30 22:46:06 sapporo kernel: [34464.471749] wlp59s0: cannot understand ECSA IE operating class, 0, ignoring Jun 30 22:46:06 sapporo kernel: [34464.574148] wlp59s0: cannot understand ECSA IE operating class, 0, ignoring Jun 30 22:46:06 sapporo kernel: [34464.676582] wlp59s0: cannot understand ECSA IE operating class, 0, ignoring Jun 30 22:46:06 sapporo kernel: [34464.778822] wlp59s0: cannot understand ECSA IE operating class, 0, ignoring Jun 30 22:46:06 sapporo kernel: [34464.881254] wlp59s0: cannot understand ECSA IE operating class, 0, ignoring Jun 30 22:46:06 sapporo kernel: [34464.983611] wlp59s0: cannot understand ECSA IE operating class, 0, ignoring Jun 30 22:46:07 sapporo kernel: [34465.086076] wlp59s0: cannot understand ECSA IE operating class, 0, ignoring Jun 30 22:46:07 sapporo kernel: [34465.188515] wlp59s0: cannot understand ECSA IE operating class, 0, ignoring Jun 30 22:46:07 sapporo kernel: [34465.290813] wlp59s0: cannot understand ECSA IE operating class, 0, ignoring Jun 30 22:46:07 sapporo kernel: [34465.393663] wlp59s0: cannot understand ECSA IE operating class, 0, ignoring Jun 30 22:46:07 sapporo kernel: [34465.495660] wlp59s0: cannot understand ECSA IE operating class, 0, ignoring Jun 30 22:46:07 sapporo kernel: [34465.598069] wlp59s0: cannot understand ECSA IE operating class, 0, ignoring Jun 30 22:46:07 sapporo kernel: [34465.678263] iwlwifi 0000:3b:00.0: Microcode SW error detected. Restarting 0x2000000. Jun 30 22:46:07 sapporo kernel: [34465.678486] iwlwifi 0000:3b:00.0: Start IWL Error Log Dump: Jun 30 22:46:07 sapporo kernel: [34465.678489] iwlwifi 0000:3b:00.0: Status: 0x00000040, count: 6 Jun 30 22:46:07 sapporo kernel: [34465.678491] iwlwifi 0000:3b:00.0: Loaded firmware version: 36.77d01142.0 Jun 30 22:46:07 sapporo kernel: [34465.678493] iwlwifi 0000:3b:00.0: 0x00000039 | BAD_COMMAND Jun 30 22:46:07 sapporo kernel: [34465.678495] iwlwifi 0000:3b:00.0: 0x00000230 | trm_hw_status0 Jun 30 22:46:07 sapporo kernel: [34465.678496] iwlwifi 0000:3b:00.0: 0x00000000 | trm_hw_status1 Jun 30 22:46:07 sapporo kernel: [34465.678498] iwlwifi 0000:3b:00.0: 0x000248EC | branchlink2 Jun 30 22:46:07 sapporo kernel: [34465.678500] iwlwifi 0000:3b:00.0: 0x0003A862 | interruptlink1 Jun 30 22:46:07 sapporo kernel: [34465.678501] iwlwifi 0000:3b:00.0: 0x00000000 | interruptlink2 Jun 30 22:46:07 sapporo kernel: [34465.678503] iwlwifi 0000:3b:00.0: 0x00000002 | data1 Jun 30 22:46:07 sapporo kernel: [34465.678504] iwlwifi 0000:3b:00.0: 0xDEADBEEF | data2 Jun 30 22:46:07 sapporo kernel: [34465.678506] iwlwifi 0000:3b:00.0: 0xDEADBEEF | data3 Jun 30 22:46:07 sapporo kernel: [34465.678507] iwlwifi 0000:3b:00.0: 0x56C052FF | beacon time Jun 30 22:46:07 sapporo kernel: [34465.678509] iwlwifi 0000:3b:00.0: 0x5581DD08 | tsf low Jun 30 22:46:07 sapporo kernel: [34465.678511] iwlwifi 0000:3b:00.0: 0x00000007 | tsf hi Jun 30 22:46:07 sapporo kernel: [34465.678512] iwlwifi 0000:3b:00.0: 0x00000000 | time gp1 Jun 30 22:46:07 sapporo kernel: [34465.678514] iwlwifi 0000:3b:00.0: 0x69A0D064 | time gp2 Jun 30 22:46:07 sapporo kernel: [34465.678515] iwlwifi 0000:3b:00.0: 0x00000001 | uCode revision type Jun 30 22:46:07 sapporo kernel: [34465.678517] iwlwifi 0000:3b:00.0: 0x00000024 | uCode version major Jun 30 22:46:07 sapporo kernel: [34465.678518] iwlwifi 0000:3b:00.0: 0x77D01142 | uCode version minor Jun 30 22:46:07 sapporo kernel: [34465.678520] iwlwifi 0000:3b:00.0: 0x00000230 | hw version Jun 30 22:46:07 sapporo kernel: [34465.678522] iwlwifi 0000:3b:00.0: 0x00C89000 | board version Jun 30 22:46:07 sapporo kernel: [34465.678523] iwlwifi 0000:3b:00.0: 0x00280304 | hcmd Jun 30 22:46:07 sapporo kernel: [34465.678525] iwlwifi 0000:3b:00.0: 0x24022080 | isr0 Jun 30 22:46:07 sapporo kernel: [34465.678526] iwlwifi 0000:3b:00.0: 0x01000000 | isr1 Jun 30 22:46:07 sapporo kernel: [34465.678528] iwlwifi 0000:3b:00.0: 0x08201802 | isr2 Jun 30 22:46:07 sapporo kernel: [34465.678529] iwlwifi 0000:3b:00.0: 0x004144C0 | isr3 Jun 30 22:46:07 sapporo kernel: [34465.678531] iwlwifi 0000:3b:00.0: 0x00000000 | isr4 Jun 30 22:46:07 sapporo kernel: [34465.678532] iwlwifi 0000:3b:00.0: 0x9284009D | last cmd Id Jun 30 22:46:07 sapporo kernel: [34465.678534] iwlwifi 0000:3b:00.0: 0x00000000 | wait_event Jun 30 22:46:07 sapporo kernel: [34465.678536] iwlwifi 0000:3b:00.0: 0x00000080 | l2p_control Jun 30 22:46:07 sapporo kernel: [34465.678537] iwlwifi 0000:3b:00.0: 0x00010030 | l2p_duration Jun 30 22:46:07 sapporo kernel: [34465.678539] iwlwifi 0000:3b:00.0: 0x0000003F | l2p_mhvalid Jun 30 22:46:07 sapporo kernel: [34465.678540] iwlwifi 0000:3b:00.0: 0x000000CE | l2p_addr_match Jun 30 22:46:07 sapporo kernel: [34465.678542] iwlwifi 0000:3b:00.0: 0x0000000D | lmpm_pmg_sel Jun 30 22:46:07 sapporo kernel: [34465.678543] iwlwifi 0000:3b:00.0: 0x08081421 | timestamp Jun 30 22:46:07 sapporo kernel: [34465.678545] iwlwifi 0000:3b:00.0: 0x0000B8C8 | flow_handler Jun 30 22:46:07 sapporo kernel: [34465.678711] iwlwifi 0000:3b:00.0: Start IWL Error Log Dump: Jun 30 22:46:07 sapporo kernel: [34465.678713] iwlwifi 0000:3b:00.0: Status: 0x00000040, count: 7 Jun 30 22:46:07 sapporo kernel: [34465.678715] iwlwifi 0000:3b:00.0: 0x00000070 | NMI_INTERRUPT_LMAC_FATAL Jun 30 22:46:07 sapporo kernel: [34465.678717] iwlwifi 0000:3b:00.0: 0x00000000 | umac branchlink1 Jun 30 22:46:07 sapporo kernel: [34465.678718] iwlwifi 0000:3b:00.0: 0xC0086948 | umac branchlink2 Jun 30 22:46:07 sapporo kernel: [34465.678720] iwlwifi 0000:3b:00.0: 0xC0083B0C | umac interruptlink1 Jun 30 22:46:07 sapporo kernel: [34465.678722] iwlwifi 0000:3b:00.0: 0xC0083B0C | umac interruptlink2 Jun 30 22:46:07 sapporo kernel: [34465.678723] iwlwifi 0000:3b:00.0: 0x00000800 | umac data1 Jun 30 22:46:07 sapporo kernel: [34465.678725] iwlwifi 0000:3b:00.0: 0xC0083B0C | umac data2 Jun 30 22:46:07 sapporo kernel: [34465.678727] iwlwifi 0000:3b:00.0: 0xDEADBEEF | umac data3 Jun 30 22:46:07 sapporo kernel: [34465.678728] iwlwifi 0000:3b:00.0: 0x00000024 | umac major Jun 30 22:46:07 sapporo kernel: [34465.678730] iwlwifi 0000:3b:00.0: 0x77D01142 | umac minor Jun 30 22:46:07 sapporo kernel: [34465.678731] iwlwifi 0000:3b:00.0: 0xC088628C | frame pointer Jun 30 22:46:07 sapporo kernel: [34465.678733] iwlwifi 0000:3b:00.0: 0xC088628C | stack pointer Jun 30 22:46:07 sapporo kernel: [34465.678734] iwlwifi 0000:3b:00.0: 0x00280304 | last host cmd Jun 30 22:46:07 sapporo kernel: [34465.678736] iwlwifi 0000:3b:00.0: 0x00000000 | isr status reg Jun 30 22:46:07 sapporo kernel: [34465.678858] iwlwifi 0000:3b:00.0: Fseq Registers: Jun 30 22:46:07 sapporo kernel: [34465.678913] iwlwifi 0000:3b:00.0: 0xFC8EBB00 | FSEQ_ERROR_CODE Jun 30 22:46:07 sapporo kernel: [34465.678969] iwlwifi 0000:3b:00.0: 0x65545FF0 | FSEQ_TOP_INIT_VERSION Jun 30 22:46:07 sapporo kernel: [34465.679023] iwlwifi 0000:3b:00.0: 0x4DBA2230 | FSEQ_CNVIO_INIT_VERSION Jun 30 22:46:07 sapporo kernel: [34465.679079] iwlwifi 0000:3b:00.0: 0x0000A10B | FSEQ_OTP_VERSION Jun 30 22:46:07 sapporo kernel: [34465.679134] iwlwifi 0000:3b:00.0: 0x1811039E | FSEQ_TOP_CONTENT_VERSION Jun 30 22:46:07 sapporo kernel: [34465.679189] iwlwifi 0000:3b:00.0: 0xAE17FB4F | FSEQ_ALIVE_TOKEN Jun 30 22:46:07 sapporo kernel: [34465.679244] iwlwifi 0000:3b:00.0: 0x18F1909A | FSEQ_CNVI_ID Jun 30 22:46:07 sapporo kernel: [34465.679299] iwlwifi 0000:3b:00.0: 0xB7EC0DDE | FSEQ_CNVR_ID Jun 30 22:46:07 sapporo kernel: [34465.679354] iwlwifi 0000:3b:00.0: 0x00000010 | CNVI_AUX_MISC_CHIP Jun 30 22:46:07 sapporo kernel: [34465.679412] iwlwifi 0000:3b:00.0: 0x0BADCAFE | CNVR_AUX_MISC_CHIP Jun 30 22:46:07 sapporo kernel: [34465.679471] iwlwifi 0000:3b:00.0: 0x0BADCAFE | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM Jun 30 22:46:07 sapporo kernel: [34465.679529] iwlwifi 0000:3b:00.0: 0x0BADCAFE | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR Jun 30 22:46:07 sapporo kernel: [34465.679584] iwlwifi 0000:3b:00.0: Collecting data: trigger 2 fired. Jun 30 22:46:07 sapporo kernel: [34465.679593] ieee80211 phy0: Hardware restart was requested Jun 30 22:46:07 sapporo kernel: [34465.679636] iwlwifi 0000:3b:00.0: iwlwifi transaction failed, dumping registers Jun 30 22:46:07 sapporo kernel: [34465.679641] iwlwifi 0000:3b:00.0: iwlwifi device config registers: Jun 30 22:46:07 sapporo kernel: [34465.680053] iwlwifi 0000:3b:00.0: 00000000: 24fd8086 00100406 02800078 00000010 dd300004 00000000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680059] iwlwifi 0000:3b:00.0: 00000020: 00000000 00000000 00000000 10108086 00000000 000000c8 00000000 000001ff Jun 30 22:46:07 sapporo kernel: [34465.680063] iwlwifi 0000:3b:00.0: 00000040: 00020010 10008ec0 00100c10 0045e811 10110142 00000000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680067] iwlwifi 0000:3b:00.0: 00000060: 00000000 00080812 00000405 00000000 00010001 00000000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680071] iwlwifi 0000:3b:00.0: 00000080: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680075] iwlwifi 0000:3b:00.0: 000000a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680079] iwlwifi 0000:3b:00.0: 000000c0: 00000000 00000000 c823d001 0d000000 00814005 fee00438 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680083] iwlwifi 0000:3b:00.0: 000000e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680088] iwlwifi 0000:3b:00.0: 00000100: 14010001 00000000 00000000 00462031 00000000 00002000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680092] iwlwifi 0000:3b:00.0: 00000120: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680095] iwlwifi 0000:3b:00.0: 00000140: 14c10003 ff3d5ed2 f85971ff 15410018 10031003 0001001e 00481e1f 40a0000f Jun 30 22:46:07 sapporo kernel: [34465.680102] iwlwifi 0000:3b:00.0: iwlwifi device memory mapped registers: Jun 30 22:46:07 sapporo kernel: [34465.680310] iwlwifi 0000:3b:00.0: 00000000: 00c89000 00000040 00000000 ba00008b 00000000 00000000 00000010 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680314] iwlwifi 0000:3b:00.0: 00000020: 00000000 08040005 00000230 d55555d5 d55555d5 d55555d5 80008040 041f0042 Jun 30 22:46:07 sapporo kernel: [34465.680433] iwlwifi 0000:3b:00.0: iwlwifi device AER capability structure: Jun 30 22:46:07 sapporo kernel: [34465.680511] iwlwifi 0000:3b:00.0: 00000000: 14010001 00000000 00000000 00462031 00000000 00002000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680514] iwlwifi 0000:3b:00.0: 00000020: 00000000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680517] iwlwifi 0000:3b:00.0: iwlwifi parent port (0000:00:1c.6) config registers: Jun 30 22:46:07 sapporo kernel: [34465.680635] iwlwifi 0000:00:1c.6: 00000000: 9d168086 00100407 060400f1 00810010 00000000 00000000 003b3b00 000000f0 Jun 30 22:46:07 sapporo kernel: [34465.680640] iwlwifi 0000:00:1c.6: 00000020: dd30dd30 0001fff1 00000000 00000000 00000000 00000040 00000000 001203ff Jun 30 22:46:07 sapporo kernel: [34465.680645] iwlwifi 0000:00:1c.6: 00000040: 01428010 00008001 00100000 07724c13 70110042 0054b200 01480000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680649] iwlwifi 0000:00:1c.6: 00000060: 00000000 00000837 00000400 0000000e 00010003 00000000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680653] iwlwifi 0000:00:1c.6: 00000080: 00019005 fee00278 00000000 00000000 0000a00d 82c1103c 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680657] iwlwifi 0000:00:1c.6: 000000a0: c8030001 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680661] iwlwifi 0000:00:1c.6: 000000c0: 00000000 00000000 00000000 00000000 07001001 00001842 8b9e0008 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680666] iwlwifi 0000:00:1c.6: 000000e0: 00630300 8c548c54 00100016 00000000 00000150 4c000000 08410fb3 03000004 Jun 30 22:46:07 sapporo kernel: [34465.680670] iwlwifi 0000:00:1c.6: 00000100: 14010001 00000000 00010000 00060011 00000000 00002000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680675] iwlwifi 0000:00:1c.6: 00000120: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680678] iwlwifi 0000:00:1c.6: 00000140: 2001000d 0000000f 00000000 00000000 00000000 00000000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680681] iwlwifi 0000:00:1c.6: 00000160: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680686] iwlwifi 0000:00:1c.6: 00000180: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680689] iwlwifi 0000:00:1c.6: 000001a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680693] iwlwifi 0000:00:1c.6: 000001c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680697] iwlwifi 0000:00:1c.6: 000001e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680699] iwlwifi 0000:00:1c.6: 00000200: 2201001e 00b0281f 40a0280f Jun 30 22:46:07 sapporo kernel: [34465.680706] iwlwifi 0000:3b:00.0: iwlwifi root port (0000:00:1c.6) AER cap structure: Jun 30 22:46:07 sapporo kernel: [34465.680718] iwlwifi 0000:00:1c.6: 00000000: 14010001 00000000 00010000 00060011 00000000 00002000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680720] iwlwifi 0000:00:1c.6: 00000020: 00000000 00000000 00000000 00000000 00000000 00000000 Jun 30 22:46:07 sapporo kernel: [34465.680724] iwlwifi 0000:3b:00.0: FW error in SYNC CMD CHANNEL_SWITCH_TIME_EVENT_CMD Jun 30 22:46:07 sapporo kernel: [34465.680728] CPU: 0 PID: 45277 Comm: kworker/0:0 Tainted: G WC OE 5.4.0-7634-generic #38~1592497129~20.04~9a1ea2e-Ubuntu Jun 30 22:46:07 sapporo kernel: [34465.680729] Hardware name: HP HP Spectre x360 Convertible 15-bl0XX/82C1, BIOS F.40 04/25/2019 Jun 30 22:46:07 sapporo kernel: [34465.680744] Workqueue: events iwl_mvm_channel_switch_disconnect_wk [iwlmvm] -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1882419 Title: Intel 3945ABG [8086:4227] Subsystem [8086:1010]: syslog flooded with "wlan0: Failed check-sdata-in-driver check, flags: 0x4" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1882419/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
