yangguangcai1 commented on code in PR #10000:
URL: https://github.com/apache/nuttx/pull/10000#discussion_r1282639087
##########
sched/sched/sched_timerexpiration.c:
##########
@@ -533,6 +533,16 @@ void nxsched_alarm_tick_expiration(clock_t ticks)
{
unsigned int elapsed;
unsigned int nexttime;
+ irqstate_t flags;
+
+ /* If we are running on a single CPU architecture, then we know interrupts
+ * are disabled and there is no need to explicitly call
+ * enter_critical_section(). However, in the SMP case,
+ * enter_critical_section() is required prevent multiple cpu to enter
+ * oneshot_tick_start.
+ */
+
+ flags = enter_critical_section();
Review Comment:
done
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