iwlwifi firmware error in SYNC CMD TDLS_CONFIG_CMD (Intel 8265 on Lenovo X1 Carbon)

[Vaclav Rehak]

I am experiencing almost 100% reproducible iwlwifi firmware crashes on my Lenovo ThinkPad X1 Carbon 6th, model 20KHS03800 connected to Turris Omnia router on 5Gh. Anytime I send file from Android phone using kdeconnect, my laptop disconnects from wifi.

The issue seems to be exactly same as https://bugzilla.kernel.org/show_bug.cgi?id=203055
In fact, when I replace 36.9f0a2d68.0 firmware shipped with Bionic with the one from https://bugzilla.kernel.org/show_bug.cgi?id=203055#c1 the issue is gone.

Logs from the failing version:

Sep 18 06:08:53 vaclav-ntb kernel: [ 17.656139] iwlwifi 0000:02:00.0: loaded firmware version 36.9f0a2d68.0 op_mode iwlmvm
...
Sep 18 06:10:04 vaclav-ntb kdeconnectd.desktop[3497]: kdeconnect.plugin.share: File transfer finished. QUrl("file:///home/vaclav/Downloads/20200917_184424.jpg")
Sep 18 06:10:05 vaclav-ntb wpa_supplicant[1293]: TDLS: Creating peer entry for 88:83:22:dc:28:33
Sep 18 06:10:05 vaclav-ntb wpa_supplicant[1293]: TDLS: Dialog Token in TPK M1 1
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.598616] iwlwifi 0000:02:00.0: Microcode SW error detected. Restarting 0x82000000.
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.598887] iwlwifi 0000:02:00.0: Start IWL Error Log Dump:
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.598894] iwlwifi 0000:02:00.0: Status: 0x00000040, count: 6
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.598900] iwlwifi 0000:02:00.0: Loaded firmware version: 36.9f0a2d68.0
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.598907] iwlwifi 0000:02:00.0: 0x00000038 | BAD_COMMAND
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.598913] iwlwifi 0000:02:00.0: 0x00000280 | trm_hw_status0
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.598919] iwlwifi 0000:02:00.0: 0x00000000 | trm_hw_status1
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.598923] iwlwifi 0000:02:00.0: 0x0002485C | branchlink2
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.598929] iwlwifi 0000:02:00.0: 0x0003A7CA | interruptlink1
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.598935] iwlwifi 0000:02:00.0: 0x00000000 | interruptlink2
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.598942] iwlwifi 0000:02:00.0: 0x00F801A7 | data1
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.598948] iwlwifi 0000:02:00.0: 0x000000F9 | data2
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.598955] iwlwifi 0000:02:00.0: 0x000000F9 | data3
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.598963] iwlwifi 0000:02:00.0: 0x99C138F0 | beacon time
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.598968] iwlwifi 0000:02:00.0: 0x6DFD9717 | tsf low
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.598973] iwlwifi 0000:02:00.0: 0x00000180 | tsf hi
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.598978] iwlwifi 0000:02:00.0: 0x00000000 | time gp1
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.598983] iwlwifi 0000:02:00.0: 0x043BF071 | time gp2
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.598990] iwlwifi 0000:02:00.0: 0x00000001 | uCode revision type
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.598996] iwlwifi 0000:02:00.0: 0x00000024 | uCode version major
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599001] iwlwifi 0000:02:00.0: 0x9F0A2D68 | uCode version minor
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599006] iwlwifi 0000:02:00.0: 0x00000230 | hw version
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599011] iwlwifi 0000:02:00.0: 0x18489000 | board version
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599016] iwlwifi 0000:02:00.0: 0x00F801A7 | hcmd
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599021] iwlwifi 0000:02:00.0: 0x20022080 | isr0
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599026] iwlwifi 0000:02:00.0: 0x10800000 | isr1
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599030] iwlwifi 0000:02:00.0: 0x2820180A | isr2
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599035] iwlwifi 0000:02:00.0: 0x00417CC0 | isr3
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599039] iwlwifi 0000:02:00.0: 0x00000000 | isr4
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599045] iwlwifi 0000:02:00.0: 0x00F701D2 | last cmd Id
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599049] iwlwifi 0000:02:00.0: 0x00000000 | wait_event
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599054] iwlwifi 0000:02:00.0: 0x00004288 | l2p_control
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599059] iwlwifi 0000:02:00.0: 0x00018024 | l2p_duration
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599064] iwlwifi 0000:02:00.0: 0x00000000 | l2p_mhvalid
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599069] iwlwifi 0000:02:00.0: 0x000000E7 | l2p_addr_match
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599074] iwlwifi 0000:02:00.0: 0x0000000D | lmpm_pmg_sel
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599079] iwlwifi 0000:02:00.0: 0x04120134 | timestamp
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599084] iwlwifi 0000:02:00.0: 0x00006078 | flow_handler
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599347] iwlwifi 0000:02:00.0: Start IWL Error Log Dump:
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599355] iwlwifi 0000:02:00.0: Status: 0x00000040, count: 7
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599361] iwlwifi 0000:02:00.0: 0x00000070 | NMI_INTERRUPT_LMAC_FATAL
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599368] iwlwifi 0000:02:00.0: 0x00000000 | umac branchlink1
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599373] iwlwifi 0000:02:00.0: 0xC00868A4 | umac branchlink2
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599378] iwlwifi 0000:02:00.0: 0xC0083A94 | umac interruptlink1
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599384] iwlwifi 0000:02:00.0: 0xC0083A94 | umac interruptlink2
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599389] iwlwifi 0000:02:00.0: 0x00000800 | umac data1
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599395] iwlwifi 0000:02:00.0: 0xC0083A94 | umac data2
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599401] iwlwifi 0000:02:00.0: 0xDEADBEEF | umac data3
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599406] iwlwifi 0000:02:00.0: 0x00000024 | umac major
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599410] iwlwifi 0000:02:00.0: 0x9F0A2D68 | umac minor
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599415] iwlwifi 0000:02:00.0: 0xC088628C | frame pointer
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599421] iwlwifi 0000:02:00.0: 0xC088628C | stack pointer
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599426] iwlwifi 0000:02:00.0: 0x00F801A7 | last host cmd
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599431] iwlwifi 0000:02:00.0: 0x00000000 | isr status reg
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599602] iwlwifi 0000:02:00.0: Fseq Registers:
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599771] iwlwifi 0000:02:00.0: 0x82C7EEB2 | FSEQ_ERROR_CODE
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.599935] iwlwifi 0000:02:00.0: 0x15A8832D | FSEQ_TOP_INIT_VERSION
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.600101] iwlwifi 0000:02:00.0: 0x510029A8 | FSEQ_CNVIO_INIT_VERSION
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.600267] iwlwifi 0000:02:00.0: 0x0000A10B | FSEQ_OTP_VERSION
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.600433] iwlwifi 0000:02:00.0: 0x539B7C4A | FSEQ_TOP_CONTENT_VERSION
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.600599] iwlwifi 0000:02:00.0: 0xB78F5D62 | FSEQ_ALIVE_TOKEN
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.600765] iwlwifi 0000:02:00.0: 0xE4A871FD | FSEQ_CNVI_ID
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.600931] iwlwifi 0000:02:00.0: 0x87B6CB20 | FSEQ_CNVR_ID
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.601099] iwlwifi 0000:02:00.0: 0x00000010 | CNVI_AUX_MISC_CHIP
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.601268] iwlwifi 0000:02:00.0: 0x0BADCAFE | CNVR_AUX_MISC_CHIP
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.601438] iwlwifi 0000:02:00.0: 0x0BADCAFE | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.601608] iwlwifi 0000:02:00.0: 0x0BADCAFE | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.601812] iwlwifi 0000:02:00.0: Collecting data: trigger 2 fired.
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.601816] ieee80211 phy0: Hardware restart was requested
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.601825] iwlwifi 0000:02:00.0: FW Error notification: type 0x00000000 cmd_id 0xA7
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.601826] iwlwifi 0000:02:00.0: FW Error notification: seq 0x00F8 service 0x000000A7
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.601828] iwlwifi 0000:02:00.0: FW Error notification: timestamp 0x00000000043C0DC9
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.601862] iwlwifi 0000:02:00.0: iwlwifi transaction failed, dumping registers
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.601867] iwlwifi 0000:02:00.0: iwlwifi device config registers:
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602154] iwlwifi 0000:02:00.0: 00000000: 24fd8086 00100406 02800078 00000000 ee200004 00000000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602158] iwlwifi 0000:02:00.0: 00000020: 00000000 00000000 00000000 00108086 00000000 000000c8 00000000 000001ff
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602161] iwlwifi 0000:02:00.0: 00000040: 00020010 10008ec0 00190c10 0045e811 10110142 00000000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602164] iwlwifi 0000:02:00.0: 00000060: 00000000 00080812 00000405 00000000 00010001 00000000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602168] iwlwifi 0000:02:00.0: 00000080: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602170] iwlwifi 0000:02:00.0: 000000a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602174] iwlwifi 0000:02:00.0: 000000c0: 00000000 00000000 c823d001 0d000000 00814005 fee20004 00000000 00004025
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602177] iwlwifi 0000:02:00.0: 000000e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602181] iwlwifi 0000:02:00.0: 00000100: 14010001 00000000 00000000 00462031 00000000 00002000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602184] iwlwifi 0000:02:00.0: 00000120: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602187] iwlwifi 0000:02:00.0: 00000140: 14c10003 ff2ac240 38deadff 15410018 10031003 0001001e 00481e1f 40a0000f
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602189] iwlwifi 0000:02:00.0: iwlwifi device memory mapped registers:
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602391] iwlwifi 0000:02:00.0: 00000000: 18489000 0000ff40 00000000 ba00008b 00000000 00000000 00000010 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602396] iwlwifi 0000:02:00.0: 00000020: 00000000 08040005 00000230 d55555d5 d55555d5 d55555d5 80008040 041f0042
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602578] iwlwifi 0000:02:00.0: iwlwifi device AER capability structure:
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602819] iwlwifi 0000:02:00.0: 00000000: 14010001 00000000 00000000 00462031 00000000 00002000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602825] iwlwifi 0000:02:00.0: 00000020: 00000000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602832] iwlwifi 0000:02:00.0: iwlwifi parent port (0000:00:1c.0) config registers:
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602949] iwlwifi 0000:00:1c.0: 00000000: 9d108086 00100407 060400f1 00810000 00000000 00000000 00020200 200000f0
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602952] iwlwifi 0000:00:1c.0: 00000020: ee20ee20 0001fff1 00000000 00000000 00000000 00000040 00000000 000201ff
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602954] iwlwifi 0000:00:1c.0: 00000040: 01428010 00008001 00100000 01724c13 70110042 0004b200 01480000 00000008
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602956] iwlwifi 0000:00:1c.0: 00000060: 00000000 00000837 00000400 0000000e 00010003 00000000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602958] iwlwifi 0000:00:1c.0: 00000080: 00019005 fee04004 00004021 00000000 0000a00d 225c17aa 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602960] iwlwifi 0000:00:1c.0: 000000a0: c8030001 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602962] iwlwifi 0000:00:1c.0: 000000c0: 00000000 00000000 00000000 00000000 07001001 00001842 0b9e0008 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602964] iwlwifi 0000:00:1c.0: 000000e0: 0073f700 88aa88aa 00128016 00000000 00000150 40000300 08410fb3 01000004
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602966] iwlwifi 0000:00:1c.0: 00000100: 14010001 00000000 00010000 00060011 00000000 00002000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602968] iwlwifi 0000:00:1c.0: 00000120: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602970] iwlwifi 0000:00:1c.0: 00000140: 2001000d 0000000f 00000000 00000000 00000000 00000000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602971] iwlwifi 0000:00:1c.0: 00000160: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602973] iwlwifi 0000:00:1c.0: 00000180: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602975] iwlwifi 0000:00:1c.0: 000001a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602977] iwlwifi 0000:00:1c.0: 000001c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602979] iwlwifi 0000:00:1c.0: 000001e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602980] iwlwifi 0000:00:1c.0: 00000200: 2201001e 0039281f 40a0280f
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602988] iwlwifi 0000:02:00.0: iwlwifi root port (0000:00:1c.0) AER cap structure:
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.602999] iwlwifi 0000:00:1c.0: 00000000: 14010001 00000000 00010000 00060011 00000000 00002000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603001] iwlwifi 0000:00:1c.0: 00000020: 00000000 00000000 00000000 00000000 00000000 00000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603004] iwlwifi 0000:02:00.0: FW error in SYNC CMD TDLS_CONFIG_CMD
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603008] CPU: 0 PID: 1293 Comm: wpa_supplicant Tainted: G OE 5.4.0-47-generic #51~18.04.1-Ubuntu
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603009] Hardware name: LENOVO 20KHS03800/20KHS03800, BIOS N23ET74W (1.49 ) 06/03/2020
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603010] Call Trace:
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603018] dump_stack+0x6d/0x95
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603032] iwl_trans_pcie_send_hcmd+0x41e/0x430 [iwlwifi]
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603036] ? wait_woken+0x80/0x80
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603046] iwl_trans_send_cmd+0x5f/0xc0 [iwlwifi]
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603057] iwl_mvm_send_cmd+0x1f/0x50 [iwlmvm]
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603066] iwl_mvm_tdls_config+0x127/0x180 [iwlmvm]
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603074] iwl_mvm_recalc_tdls_state+0xc8/0xd0 [iwlmvm]
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603080] ? iwl_mvm_recalc_tdls_state+0xc8/0xd0 [iwlmvm]
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603086] iwl_mvm_mac_sta_state+0x6b1/0x7e0 [iwlmvm]
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603089] ? __switch_to+0x112/0x480
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603114] drv_sta_state+0x92/0x400 [mac80211]
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603127] sta_info_insert_rcu+0x2f3/0x910 [mac80211]
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603145] ieee80211_add_station+0xeb/0x150 [mac80211]
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603172] nl80211_new_station+0x32d/0x520 [cfg80211]
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603177] genl_family_rcv_msg+0x21c/0x490
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603180] ? try_to_wake_up+0x23c/0x5f0
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603182] genl_rcv_msg+0x4c/0x90
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603184] ? genl_family_rcv_msg+0x490/0x490
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603185] netlink_rcv_skb+0x51/0x120
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603187] genl_rcv+0x28/0x40
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603188] netlink_unicast+0x1a4/0x250
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603190] netlink_sendmsg+0x2eb/0x3f0
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603193] sock_sendmsg+0x63/0x70
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603195] ____sys_sendmsg+0x200/0x280
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603198] ___sys_sendmsg+0x88/0xd0
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603201] ? _extract_crng+0x82/0xc0
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603202] ? _crng_backtrack_protect+0x60/0x80
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603204] ? urandom_read+0x10c/0x280
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603206] __sys_sendmsg+0x63/0xa0
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603207] ? __sys_sendmsg+0x63/0xa0
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603208] __x64_sys_sendmsg+0x1f/0x30
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603211] do_syscall_64+0x57/0x190
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603213] entry_SYSCALL_64_after_hwframe+0x44/0xa9
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603216] RIP: 0033:0x7f7b39e00eb4
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603218] Code: 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b5 0f 1f 80 00 00 00 00 48 8d 05 51 da 2c 00 8b 00 85 c0 75 13 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 f3 c3 66 90 41 54 55 41 89 d4 53 48 89 f5
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603220] RSP: 002b:00007fffc1579b98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603222] RAX: ffffffffffffffda RBX: 000055e06d7bbb70 RCX: 00007f7b39e00eb4
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603222] RDX: 0000000000000000 RSI: 00007fffc1579bd0 RDI: 0000000000000006
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603223] RBP: 000055e06d7e3c50 R08: 0000000000000000 R09: 00007f7b3a0c9c40
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603224] R10: 0000000000000007 R11: 0000000000000246 R12: 000055e06d7bba80
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603225] R13: 00007fffc1579bd0 R14: 0000000000000000 R15: 0000000000000000
Sep 18 06:10:05 vaclav-ntb kernel: [ 93.603257] ------------[ cut here ]------------

$ lsb_release -rd
Description: Ubuntu 18.04.5 LTS
Release: 18.04

$ apt-cache policy linux-firmware
linux-firmware:
  Installed: 1.173.19
  Candidate: 1.173.19
  Version table:
 *** 1.173.19 500
        500 http://cz.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
        500 http://cz.archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages
        100 /var/lib/dpkg/status
     1.173.18 500
        500 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu bionic-security/main i386 Packages
     1.173 500
        500 http://cz.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
        500 http://cz.archive.ubuntu.com/ubuntu bionic/main i386 Packages