[load_mon] pga460 low on stack!

[danielghirst]

The bug
The drone will occasionally disarm and drop out of the sky when the ‘return home’ command is given. I believe it is the result of a memory issue. Whenever the drone does drop out of the sky the log files are corrupted, so I am not able to see the warnings before it disarms. The last few times I have attempted to reproduce the problem I have been getting “[load_mon] pga460 low on stack!” warning. The warning is displayed only in normal flight. I’m wondering if the warning is the same memory problem creating the drone to disarm at times.

To Reproduce
Steps to reproduce the behavior:

1. Drone switched on
2. Took off in position mode
3. Fly away and then hit return home.
4. See drone fall or the warning in the flight log

Expected behavior
The drone is expected to return home, land and then disarm.

Log Files and Screenshots
Screen Shot 2019-06-17 at 10.22.03 AM.pdf

Link to the flight log file:
https://review.px4.io/plot_app?log=5da7db09-05fe-4a89-a1b3-776b634e0972

Drone (please complete the following information):

• Teal One with stable 1.9.0

[dakejahl]

These problems are unrelated. You need to increase your stack size in the pga460 driver.

You need to reduce your RAM consumption if you are getting hardfaults during flight. Try disabling the extra mavlink streams.