From 4aa6e04c6eabbada4b85ad5f6fe378b2178aea90 Mon Sep 17 00:00:00 2001
From: Jeff Tenney <jeff.tenney@gmail.com>
Date: Tue, 23 Jun 2020 10:40:07 -0700
Subject: [PATCH] Protect xPendedTicks with critical section

Function xTaskIncrementTick() increments xPendedTicks when the
scheduler is disabled.  That function typically executes inside the tick
ISR.  So code in xTaskCatchUpTicks() must mask interrupts when modifying
xPendedTicks.
---
 tasks.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tasks.c b/tasks.c
index 1046791a4..735b79974 100644
--- a/tasks.c
+++ b/tasks.c
@@ -2636,7 +2636,9 @@ BaseType_t xYieldOccurred;
 	/* Use xPendedTicks to mimic xTicksToCatchUp number of ticks occurring when
 	the scheduler is suspended so the ticks are executed in xTaskResumeAll(). */
 	vTaskSuspendAll();
+	taskENTER_CRITICAL();
 	xPendedTicks += xTicksToCatchUp;
+	taskEXIT_CRITICAL();
 	xYieldOccurred = xTaskResumeAll();
 
 	return xYieldOccurred;