I'd like to enable runtime watchdog on efusA9 with custom built Linux using Yocto. But when the watchdog is enabled (with nowayout disabled), as confirmed by this kernel and systemd output:
the shutdown stops to work. The board is restarted after 128 seconds. Kernel informs about it at the end of shutdown (issued using poweroff)
I'm testing on two systems with following versions:
Linux 4.1.15+f+s-v3.1, systemd 234
Linux 4.9.88-F+S, systemd 241
Relevant watchdog settings in the kernel:
Is there anything missing or wrongly configured? Thank you.