How to verify if node reboot was triggered by the watchdog?

I have created software watchdog device using command: $ sudo modprobe softdog soft_margin=60 In OS log it is visible that software watchdog was initialized: Jul 12 09:49:00 patroni4 kernel: softdog: Software Watchdog Timer: 0.08 initialized. soft_noboot=0 soft_margin=60 sec soft_panic=0 (nowayout=0) To trigger node reboot by the watchdog I have executed echo a | sudo tee /dev/watchdog. Node rebooted but in the logs there is no info that reboot was triggered by the watchdog. If I set option soft_noboot=1 in the OS log there is message softdog: Triggered - Reboot ignored. Based on the watchdog implementation there should be log message when node reboot was triggered by the watchdog. https://github.com/spacex/kernel-centos7/blob/master/drivers/watchdog/softdog.c

static void watchdog_fire(unsigned long data)
{
	if (soft_noboot)
		pr_crit("Triggered - Reboot ignored\n");
	else if (soft_panic) {
		pr_crit("Initiating panic\n");
		panic("Software Watchdog Timer expired");
	} else {
		pr_crit("Initiating system reboot\n");
		emergency_restart();
		pr_crit("Reboot didn't ?????\n");
	}
}

OS: CentOS Linux release 7.9.2009 (Core) Linux lin1 3.10.0-1160.62.1.el7.x86_64 How can I verify if reboot was triggered by the watchdog? Why this information is not logged? Can I enable logging somehow? Thank you for the info