Hello!
I cannot get the iTCO_wdt device to be found. I'm not sure how else to
troubleshoot at this point, so any help with that is appreciated (i.e. a
way to manually check if the device exists or etc.).
I am using Debian 11 on an Intel NUC CMCR1ABB chassis with a CM11EBi716W
module. This is an i7 and the watchdog is enabled in the BIOS. I am using
the latest BIOS v71. Kernel: 5.10.0-21-amd64 #1 SMP Debian 5.10.162-1
(2023-01-21) x86_64 GNU/Linux.
Every single time I run "modprobe iTCO-wdt" I see in dmesg:
iTCO_vendor_support: vendor-support=0
iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11
And that's it. No device found and no new /dev/watchdog devices or anything
new in wdctl.
I have tried:
1. Simply "modprobe iTCO-wdt"
2. Also loading "i2c-i801" and "i2c-smbus" first and then loading the
module
3. Blacklisting wdat_wdt and adding nmi_watchdog=0 to GRUB, which
correctly caused the existing /dev/watchdog software device to disappear
but iTCO_wdt still didn't work
I found one other user with the same issue several years go:
https://forums.debian.net/viewtopic.php?t=146358
I'm very certain that this device supports the watchdog, as there is a BIOS
option to enable it and Intel has a Windows daemon to make use of it. Is
there another Intel watchdog scheme besides iTCO_wdt? Would secureboot
lockdown be interfering with this?
Thanks,
Perry
