Kernel panic on X1 Carbon 6th gen

Support
1

Been struggling to diagnose and fix kernel panic on an X1 Carbon 6th gen for over 6 months. Difficult to reproduce consistently, however symptoms tend to involve the system going to sleep or the power being unplugged. On several occasions I have unplugged the machine from power (whilst fully charged) and it has instantly gone into panic (flashing capslock light). On other occasions I’ve left the machine on without closing the lid for long periods (overnight) and have been unable to get back in (completely frozen and stuck on login screen). REISUB only seems to work if I catch it whilst the panic is happening - whenever I’ve come back to a frozen machine (e.g. closed the lid with power plugged) there is no response to REISUB.
I’ll add that the machine is capable to run for several hours without being plugged in so I don’t suspect the battery of being completely shot.

I did follow through this semi-recent post from another user with the same 6th gen carbon model: X1 Carbon 6th Gen - Kernel Panics and Lock-ups. Some of the issues described there are similar to mine, but not exactly. This thread also seems to have had no conclusion.
There is also mention of “system freeze on suspend” in the announcements: [Stable Update] 2024-10-10 - Kernels, Pacman 7.0, KDE Frameworks 6.6, Virtualbox 7.1.2, Mesa - #2 by philm. But the symptom of “System freezes for 60 seconds and then wakes back up or hangs after waking up” is really not related.

Output of inxi -xG:

Graphics:
  Device-1: Intel UHD Graphics 620 vendor: Lenovo driver: i915 v: kernel
    arch: Gen-9.5 bus-ID: 00:02.0
  Device-2: Bison Integrated Camera driver: uvcvideo type: USB bus-ID: 1-8:3
  Display: x11 server: X.Org v: 21.1.14 driver: X: loaded: modesetting
    dri: iris gpu: i915 resolution: 2560x1440~60Hz
  API: EGL v: 1.5 drivers: iris,swrast platforms:
    active: gbm,x11,surfaceless,device inactive: wayland
  API: OpenGL v: 4.6 compat-v: 4.5 vendor: intel mesa v: 24.2.4-arch1.0.1
    glx-v: 1.4 direct-render: yes renderer: Mesa Intel UHD Graphics 620 (KBL
    GT2)

Output of journalctl -b0 -p4 --no-pager immediately after hard rebooting from a freeze/panic:

 kernel: MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details.
 kernel: MMIO Stale Data CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/processor_mmio_stale_data.html for more details.
 kernel: ENERGY_PERF_BIAS: Set to 'normal', was 'performance'
 kernel: hpet_acpi_add: no address or irqs in _CRS
 kernel: systemd[1]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set
 kernel: kauditd_printk_skb: 34 callbacks suppressed
 systemd-journald[301]: File /var/log/journal/50e1c05924bc4a11a1c7a0373b036708/system.journal corrupted or uncleanly shut down, renaming and replacing.
 kernel: resource: resource sanity check: requesting [mem 0x00000000fed10000-0x00000000fed15fff], which spans more than pnp 00:07 [mem 0xfed10000-0xfed13fff]
 kernel: caller snb_uncore_imc_init_box+0x87/0xe0 [intel_uncore] mapping multiple BARs
 systemd-vconsole-setup[600]: /usr/bin/loadkeys failed with exit status 1.
 systemd[1]: systemd-vconsole-setup.service: Failed with result 'exit-code'.
 systemd[1]: Failed to start Virtual Console Setup.
 kernel: thermal thermal_zone5: failed to read out thermal zone (-61)
 avahi-daemon[724]: Failed to parse address '', ignoring.
 (uetoothd)[1083]: bluetooth.service: ConfigurationDirectory 'bluetooth' already exists but the mode is different. (File system: 755 ConfigurationDirectoryMode: 555)
 bluetoothd[1083]: src/plugin.c:init_plugin() System does not support bap plugin
 bluetoothd[1083]: src/plugin.c:init_plugin() System does not support bass plugin
 bluetoothd[1083]: src/plugin.c:init_plugin() System does not support mcp plugin
 bluetoothd[1083]: src/plugin.c:init_plugin() System does not support vcp plugin
 bluetoothd[1083]: profiles/audio/micp.c:micp_init() D-Bus experimental not enabled
 bluetoothd[1083]: src/plugin.c:init_plugin() System does not support micp plugin
 bluetoothd[1083]: src/plugin.c:init_plugin() System does not support ccp plugin
 bluetoothd[1083]: src/plugin.c:init_plugin() System does not support csip plugin
 bluetoothd[1083]: src/plugin.c:init_plugin() System does not support asha plugin
 kernel: Bluetooth: hci0: Malformed MSFT vendor event: 0x02
 kernel: Bluetooth: hci0: Reading supported features failed (-16)
 kernel: Bluetooth: hci0: HCI LE Coded PHY feature bit is set, but its usage is not supported.
 dbus-broker-launch[681]: Activation request for 'org.freedesktop.home1' failed: The systemd unit 'dbus-org.freedesktop.home1.service' could not be found.
 dbus-broker-launch[1449]: Service file '/usr/share//dbus-1/services/org.knopwob.dunst.service' is not named after the D-Bus name 'org.freedesktop.Notifications'.
 dbus-broker-launch[1449]: Service file '/usr/share//dbus-1/services/org.xfce.xfce4-notifyd.Notifications.service' is not named after the D-Bus name 'org.freedesktop.Notifications'.
 dbus-broker-launch[1449]: Ignoring duplicate name 'org.freedesktop.Notifications' in service file '/usr/share//dbus-1/services/org.xfce.xfce4-notifyd.Notifications.service'
 dbus-broker-launch[1449]: Service file '/usr/share//dbus-1/services/org.xfce.xfce4-notifyd.Notifyd.service' is not named after the D-Bus name 'org.xfce.Notifyd'.
 dbus-broker-launch[681]: Activation request for 'org.freedesktop.resolve1' failed: The systemd unit 'dbus-org.freedesktop.resolve1.service' could not be found.
 lightdm[1503]: gkr-pam: unable to locate daemon control file
 dbus-broker-launch[1561]: Service file '/usr/share//dbus-1/services/org.knopwob.dunst.service' is not named after the D-Bus name 'org.freedesktop.Notifications'.
 dbus-broker-launch[1561]: Service file '/usr/share//dbus-1/services/org.xfce.xfce4-notifyd.Notifications.service' is not named after the D-Bus name 'org.freedesktop.Notifications'.
 dbus-broker-launch[1561]: Ignoring duplicate name 'org.freedesktop.Notifications' in service file '/usr/share//dbus-1/services/org.xfce.xfce4-notifyd.Notifications.service'
 dbus-broker-launch[1561]: Service file '/usr/share//dbus-1/services/org.xfce.xfce4-notifyd.Notifyd.service' is not named after the D-Bus name 'org.xfce.Notifyd'.

Currently using linux66 kernel. Have tried 515 and others without any change.

2

This is insufficient.
Please provide

inxi -Farz

Have you checked the sleep mode set in BIOS?

We cant see it currently (better inxi would show) but your BIOS should be up to date, and if it is, there should be a ‘Linux’ sleep state option available in BIOS. This should be selected over other options like ‘Windows 10’.

For more information, including how to upgrade your BIOS and other troubleshooting, see the dedicated Archwiki page:
https://wiki.archlinux.org/title/Lenovo_ThinkPad_X1_Carbon_(Gen_6)

3

Right… That’d probably do the trick. Unfortunately, after installing and running fwupdmgr update (fwupd - ArchWiki) I land here: System and ME firmware fail to update on Lenovo t480s · Issue #201 · fwupd/firmware-lenovo · GitHub. That issue is seemingly solved by a manual install of a .cab file that was privately shared?? As per the manual update instructions (Lenovo ThinkPad X1 Carbon (Gen 6) - ArchWiki) the Lenovo website (laptops and netbooks :: thinkpad x series laptops :: thinkpad x1 carbon 6th gen type 20kh 20kgcontentdetail - Lenovo Support FR) offers various drivers - what am I aiming for here? BIOS/UEFI?

Thanks!

inxi -Farz:

System: 
  Kernel: 6.6.54-2-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 14.2.1 
    clocksource: tsc avail: acpi_pm 
    parameters: BOOT_IMAGE=/boot/vmlinuz-6.6-x86_64 
    root=UUID=d7a34cd6-b506-4046-8f87-2f88ba3da3f7 rw quiet apparmor=1 
    security=apparmor udev.log_priority=3 
  Desktop: i3 v: 4.23 with: i3bar tools: xautolock avail: i3lock vt: 7 
    dm: LightDM v: 1.32.0 Distro: Manjaro base: Arch Linux 
Machine: 
  Type: Laptop System: LENOVO product: 20KHA01CAU v: ThinkPad X1 Carbon 6th 
    serial: <superuser required> Chassis: type: 10 serial: <superuser required> 
  Mobo: LENOVO model: 20KHA01CAU v: SDK0J40697 WIN 
    serial: <superuser required> part-nu: LENOVO_MT_20KH_BU_Think_FM_ThinkPad 
    X1 Carbon 6th uuid: <superuser required> UEFI: LENOVO v: N23ET50W (1.25 ) 
    date: 06/25/2018 
Battery: 
  ID-1: BAT0 charge: 20.1 Wh (96.6%) condition: 20.8/57.0 Wh (36.4%) 
    volts: 12.4 min: 11.6 model: LGC 01AV494 type: Li-poly serial: <filter> 
    status: not charging cycles: 584 
CPU: 
  Info: model: Intel Core i5-8250U bits: 64 type: MT MCP arch: Coffee Lake 
    gen: core 8 level: v3 note: check built: 2017 process: Intel 14nm family: 6 
    model-id: 0x8E (142) stepping: 0xA (10) microcode: 0xF6 
  Topology: cpus: 1x dies: 1 clusters: 4 cores: 4 threads: 8 tpc: 2 
    smt: enabled cache: L1: 256 KiB desc: d-4x32 KiB; i-4x32 KiB L2: 1024 KiB 
    desc: 4x256 KiB L3: 6 MiB desc: 1x6 MiB 
  Speed (MHz): avg: 800 min/max: 400/3400 scaling: driver: intel_pstate 
    governor: powersave cores: 1: 800 2: 800 3: 800 4: 800 5: 800 6: 800 7: 800 
    8: 800 bogomips: 28808 
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx 
  Vulnerabilities: 
  Type: gather_data_sampling mitigation: Microcode 
  Type: itlb_multihit status: KVM: VMX disabled 
  Type: l1tf mitigation: PTE Inversion; VMX: conditional cache flushes, SMT 
    vulnerable 
  Type: mds mitigation: Clear CPU buffers; SMT vulnerable 
  Type: meltdown mitigation: PTI 
  Type: mmio_stale_data mitigation: Clear CPU buffers; SMT vulnerable 
  Type: reg_file_data_sampling status: Not affected 
  Type: retbleed mitigation: IBRS 
  Type: spec_rstack_overflow status: Not affected 
  Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via 
    prctl 
  Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer 
    sanitization 
  Type: spectre_v2 mitigation: IBRS; IBPB: conditional; STIBP: conditional; 
    RSB filling; PBRSB-eIBRS: Not affected; BHI: Not affected 
  Type: srbds mitigation: Microcode 
  Type: tsx_async_abort status: Not affected 
Graphics: 
  Device-1: Intel UHD Graphics 620 vendor: Lenovo driver: i915 v: kernel 
    arch: Gen-9.5 process: Intel 14nm built: 2016-20 ports: active: eDP-1 
    empty: DP-1, DP-2, HDMI-A-1, HDMI-A-2 bus-ID: 00:02.0 chip-ID: 8086:5917 
    class-ID: 0300 
  Device-2: Bison Integrated Camera driver: uvcvideo type: USB rev: 2.0 
    speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 1-8:3 chip-ID: 5986:2115 
    class-ID: 0e02 
  Display: x11 server: X.Org v: 21.1.14 driver: X: loaded: modesetting 
    alternate: fbdev,vesa dri: iris gpu: i915 display-ID: :0 screens: 1 
  Screen-1: 0 s-res: 2560x1440 s-dpi: 96 s-size: 677x381mm (26.65x15.00") 
    s-diag: 777mm (30.58") 
  Monitor-1: eDP-1 model: LG Display 0x058b built: 2016 res: 2560x1440 
    hz: 60 dpi: 210 gamma: 1.2 size: 309x174mm (12.17x6.85") diag: 355mm (14") 
    ratio: 16:9 modes: 2560x1440 
  API: EGL v: 1.5 hw: drv: intel iris platforms: device: 0 drv: iris 
    device: 1 drv: swrast gbm: drv: iris surfaceless: drv: iris x11: drv: iris 
    inactive: wayland 
  API: OpenGL v: 4.6 compat-v: 4.5 vendor: intel mesa v: 24.2.4-arch1.0.1 
    glx-v: 1.4 direct-render: yes renderer: Mesa Intel UHD Graphics 620 (KBL 
    GT2) device-ID: 8086:5917 memory: 3.67 GiB unified: yes 
Audio: 
  Device-1: Intel Sunrise Point-LP HD Audio vendor: Lenovo 
    driver: snd_hda_intel v: kernel alternate: snd_soc_skl,snd_soc_avs 
    bus-ID: 00:1f.3 chip-ID: 8086:9d71 class-ID: 0403 
  API: ALSA v: k6.6.54-2-MANJARO status: kernel-api with: aoss 
    type: oss-emulator tools: alsactl,alsamixer,amixer 
  Server-1: JACK v: 1.9.22 status: off tools: N/A 
  Server-2: PipeWire v: 1.2.5 status: off tools: pw-cli 
  Server-3: PulseAudio v: 17.0 status: active with: 1: pulseaudio-alsa 
    type: plugin 2: pulseaudio-jack type: module tools: pacat,pactl,pavucontrol 
Network: 
  Device-1: Intel Ethernet I219-V vendor: Lenovo driver: e1000e v: kernel 
    port: N/A bus-ID: 00:1f.6 chip-ID: 8086:15d8 class-ID: 0200 
  IF: enp0s31f6 state: down mac: <filter> 
  Device-2: Intel Wireless 8265 / 8275 driver: iwlwifi v: kernel pcie: 
    gen: 1 speed: 2.5 GT/s lanes: 1 bus-ID: 02:00.0 chip-ID: 8086:24fd 
    class-ID: 0280 
  IF: wlp2s0 state: up mac: <filter> 
  IF-ID-1: wwan0 state: down mac: N/A 
  Info: services: NetworkManager, systemd-timesyncd, wpa_supplicant 
Bluetooth: 
  Device-1: Intel Bluetooth wireless interface driver: btusb v: 0.8 type: USB 
    rev: 2.0 speed: 12 Mb/s lanes: 1 mode: 1.1 bus-ID: 1-7:2 chip-ID: 8087:0a2b 
    class-ID: e001 
  Report: btmgmt ID: hci0 rfk-id: 3 state: up address: <filter> bt-v: 4.2 
    lmp-v: 8 status: discoverable: no pairing: no class-ID: 6c010c 
Drives: 
  Local Storage: total: 238.47 GiB used: 109.43 GiB (45.9%) 
  SMART Message: Required tool smartctl not installed. Check --recommends 
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Samsung 
    model: MZVLB256HAHQ-000L7 size: 238.47 GiB block-size: physical: 512 B 
    logical: 512 B speed: 31.6 Gb/s lanes: 4 tech: SSD serial: <filter> 
    fw-rev: 1L2QEXD7 temp: 36.9 C scheme: GPT 
Partition: 
  ID-1: / raw-size: 238.17 GiB size: 233.38 GiB (97.99%) 
    used: 109.42 GiB (46.9%) fs: ext4 dev: /dev/nvme0n1p2 maj-min: 259:2 
  ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%) 
    used: 11.5 MiB (3.8%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1 
Swap: 
  Alert: No swap data was found. 
Sensors: 
  System Temperatures: cpu: 46.0 C pch: 47.0 C mobo: N/A 
  Fan Speeds (rpm): fan-1: 0 
Repos: 
  Packages: pm: pacman pkgs: 1728 libs: 459 tools: pamac,yay 
  Active pacman repo servers in: /etc/pacman.d/mirrorlist 
    1: https://gsl-syd.mm.fcix.net/manjaro/stable/$repo/$arch 
    2: https://mirror.freedif.org/Manjaro/stable/$repo/$arch 
    3: https://mirror.phoepsilonix.love/manjaro/stable/$repo/$arch 
    4: https://mirror.bouwhuis.network/manjaro/stable/$repo/$arch 
    5: https://mirrors.sonic.net/manjaro/stable/$repo/$arch 
    6: https://ftp.nluug.nl/pub/os/Linux/distr/manjaro/stable/$repo/$arch 
    7: https://mirror.zetup.net/manjaro/stable/$repo/$arch 
    8: https://manjaro.repo.cure.edu.uy/stable/$repo/$arch 
Info: 
  Memory: total: 8 GiB note: est. available: 7.52 GiB used: 5.1 GiB (67.8%) 
  Processes: 228 Power: uptime: 30m states: freeze,mem,disk suspend: s2idle 
    wakeups: 0 hibernate: platform avail: shutdown, reboot, suspend, test_resume 
    image: 3 GiB services: upowerd,xfce4-power-manager Init: systemd v: 256 
    default: graphical tool: systemctl 
  Compilers: clang: 18.1.8 gcc: 14.2.1 Shell: Bash v: 5.2.37 running-in: st 
    inxi: 3.3.36
4

Can you please reference this related issue/post;

(It appears you may need to selectively update the ‘System Firmware’ before the rest.)

This is very out of date - I believe this also matches the other reports of the system firmware being ‘too old’ for the update to easily be applied.

It would appear that a bootable ISO is available.
This is good, and can be used instead of or before fwupd.
The iso file is this one at the link;
https://download.lenovo.com/pccbbs/mobiles/n23ur42w.iso