Re: iTCO_wdt on Intel NUC11TNBi5

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Hello,

Following my previous email, I have finally reached to make the watchdog work by updating the bios.
I updated the bios to the 0062 version (https://www.intel.fr/content/www/fr/fr/download/19698/709584/bios-update-tntgl357.html).

Thanks,

Kévin L'hôpital 
Free Software Consultant | Rennes, Fr 
Savoir-faire Linux

----- Mail original -----
De: "Kévin L'hôpital" <kevin.lhopital@xxxxxxxxxxxxxxxxxxxx>
À: "linux-watchdog" <linux-watchdog@xxxxxxxxxxxxxxx>
Envoyé: Vendredi 4 Mars 2022 12:36:49
Objet: iTCO_wdt on Intel NUC11TNBi5

Hello, 
I am currently working on creating a custom Linux distribution for an Intel NUC11TNBi5 on a 5.15.26 kernel version. 

I have some problem to make the watchdog work. 
The iTCO_wdt driver is well initializing and creating a watchdog device in dev directory: 

iTCO_wdt iTCO_wdt: Found a Intel PCH TCO device (Version=6, TCOBASE=0x0400) 
iTCO_wdt iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0) 

When forcing the watchdog open (cat >> /dev/watchdog), the timeleft value isn't decreasing and a reboot never happened. No reboot also when forcing a kernel panic. 
I have also tried a Fedora 35 distribution as well as a Ubuntu 20.04, with the same result. 

Has anyone encountered this issue before? 
Is the Intel NUC11TNBi5 watchdog supported by the iTCO_wdt driver? 

Thanks, 

Kévin L'hôpital 
Free Software Consultant | Rennes, Fr 
Savoir-faire Linux 
Jami: klhopital 




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