SmartRTL deactivated: buffer full

ArduCopter Copter 4.3
1

I have encountered an issue where the HUD displays: SmartRTL deactivated: buffer full.
The flight situation is as follows: the flight time is about 40 minutes, and the flight path is a quadrilateral with a total length of 160m. The plan is to fly 100 laps, but when it reaches the 45th lap, a “SmartRTL deactivated: buffer full” warning appears.
I would like to know how this warning was generated, what adverse effects it may have, and how to avoid it

2

I am using firmware 4.3.6 @bnsgeyer
warning:

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path:
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3

@guanqibuyu i am not familiar with this part of the code. Hopefully someone on the forum that can help you.

4

you have reached the max recordable points for the smart rtl function. only this.

if you dont use these function, you can deactivate it with the param SRTL_POINTS=0 to not to waste memory

5

Thank you very much for your suggestion. I think I have found a way to solve this problem

6

Thank you very much for your suggestion. I saw this parameter on the APM official website and feel that I can only turn it off