I have had the following message printed today while I was flying a copter with APM 3.4.3 with a Raspberry3/navio2 config and with a 3DR external magnetometer (only magnetometer, not GPS) integrated on board:
perf_begin() called twice on perf_counter_t(EK2_Test2)
I was able to land the drone in
LOITER mode, and it didn’t seem to have any instability, but I decided to stop flying for precaution. Has anyone had this error message?