wangchdo commented on code in PR #17308:
URL: https://github.com/apache/nuttx/pull/17308#discussion_r2516201404
##########
sched/wdog/wd_start.c:
##########
@@ -313,6 +313,32 @@ int wd_start_abstick(FAR struct wdog_s *wdog, clock_t
ticks,
reassess |= wd_insert(wdog, ticks, wdentry, arg);
+ /* If the new watchdog expiration time is earlier than the current system
+ * time, trigger a timer interrupt manually. This ensures that the system
+ * processes the watchdog immediately instead of waiting for the next tick.
+ */
+
+ if (clock_compare(wdog->expired, clock_systime_ticks()))
+ {
+# ifdef CONFIG_ARCH_HAVE_IRQTRIGGER
+ if (up_timer_trigger() != OK)
Review Comment:
This new api is to trigger irq instantly, it has no delay, no need to
consider which is the minimum up_alarm_start
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