R36.3 WatchDog Timer Enable

Robotics & Edge Computing Jetson & Embedded Systems Jetson Orin NX
1

Hello,
Under R35.4.1 system, use
echo 1 > /dev/watchdog && while true; do date; sleep 1; done
can test watchdog, it will reboot after 120s, but executing this command on R36.3 system will give feedback that /dev/watchdog is a busy resource.
When I checked the Developer Guide for R36.3, I found that Test Plan and Validation — NVIDIA Jetson Linux Developer Guide 1 documentation -The following command mentioned in the linux-watchdog timer enable verification link is not marked. What specific command is it?

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Looking forward to receiving a response.
Thank you.

3

You can try below command to hang up the system to verify the WDT.

sudo echo c > /proc/sysrq-trigger
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