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Broadcast message from username@Desktop (Sun 1919-08-10 11:45:14 CST): The system is going to reboot NOW! [756.345947] watchdog: watchdog0: watchdog did not stop! [756.472889] watchdog: watchdog0: watchdog did not stop!

Every time I reboot and found a message like this.

Is there any way to get rid of these messages?

I used to have a /etc/modprobe.d/watchdog.conf and blacklisted:

blacklist iTCO_wdtblacklist blacklist iTCO_vendor_support

but now it does not work

[firestar@ThinkPad ~]$ inxi -b System: Host: ThinkPad Kernel: 5.18.10-1-MANJARO arch: x86_64 bits: 64 Desktop: KDE Plasma v: 5.24.5 Distro: Manjaro Linux Machine: Type: Laptop System: LENOVO product: 20WKA000CD v: ThinkPad X13 Gen 2i serial: <superuser required> Mobo: LENOVO model: 20WKA000CD v: SDK0L77769 WIN serial: <superuser required> UEFI: LENOVO v: N35ET47W (1.47 ) date: 05/13/2022 Battery: ID-1: BAT0 charge: 54.7 Wh (100.0%) condition: 54.7/54.7 Wh (100.0%) CPU: Info: quad core 11th Gen Intel Core i7-1165G7 [MT MCP] speed (MHz): avg: 897 min/max: 400/4700 Graphics: Device-1: Intel TigerLake-LP GT2 [Iris Xe Graphics] driver: i915 v: kernel Device-2: IMC Networks Integrated RGB Camera type: USB driver: uvcvideo Display: x11 server: X.Org v: 21.1.3 driver: X: loaded: modesetting gpu: i915 resolution: 2560x1600~60Hz OpenGL: renderer: Mesa Intel Xe Graphics (TGL GT2) v: 4.6 Mesa 22.1.3 Network: Device-1: Intel Ethernet I219-V driver: e1000e Device-2: Intel Wi-Fi 6 AX210/AX211/AX411 160MHz driver: iwlwifi Drives: Local Storage: total: 953.87 GiB used: 29.01 GiB (3.0%) Info: Processes: 221 Uptime: 10m Memory: 15.35 GiB used: 2.68 GiB (17.5%) Shell: Bash inxi: 3.3.19
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1 Answer 1

Reset to default
2

You can avoid them by disabling watchdog. Blacklisting is not enough, you need to add these two kernel parametres at boot time: nowatchdog nmi_watchdog=0

If you use grub boot loader (most probably) add this line on
/etc/default/grub:

GRUB_CMDLINE_LINUX_DEFAULT="nowatchdog nmi_watchdog=0"

If the line already exists add the two parametres.

After that execute:
(for Debian and derivatives like Ubuntu)
sudo update-grub2
(others)
sudo grub-mkconfig -o /{path of grub.cfg file}

You don't need watchdog for everyday use, no need to worry disabling it.

If disabling broadcast messages is what you need, you can also add loglevel=3 (or lower, not recommended) το GRUB_CMDLINE_LINUX_DEFAULT. It doesn't disable broadcasting, but fewer messages are shown on console.

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  • GRUB_CMDLINE_LINUX_DEFAULT="quiet console=tty3 nowatchdog nmi_watchdog=0 loglevel=3 udev.log_priority=3" doesn't work. Commented Jul 10, 2022 at 15:38
  • What's the error produced? Try each parameter one by one, to see which one is the problematic. No need to change /etc/default/grub each time, you can edit the line at boot time, grub gives you the ability. Commented Jul 12, 2022 at 8:54

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