Recently, I stumble upon the following error on an ESP32:
Guru Meditation Error: Core 1 panic'ed (Unhandled debug exception)
Debug exception reason: Stack canary watchpoint triggered (loopTask)
Core 1 register dump:
PC : 0x40083774 PS : 0x00060b36 A0 : 0x3ffb0120 A1 : 0x3ffb0060
A2 : 0x68efa751 A3 : 0x3ffb0938 A4 : 0x3ffb0720 A5 : 0xfb879c5c
A6 : 0x61b36b71 A7 : 0x0006970f A8 : 0x01709af4 A9 : 0x01709af4
A10 : 0xfaa5dfed A11 : 0x01a3ff3b A12 : 0x76651dec A13 : 0x00000001
A14 : 0x00000000 A15 : 0x04adbe74 SAR : 0x0000001e EXCCAUSE: 0x00000001
EXCVADDR: 0x00000000 LBEG : 0x400f1cc5 LEND : 0x400f1cc9 LCOUNT : 0x00000000
ELF file SHA256: 0000000000000000The reason for this was an infinite loop that was caused by two methods that where called from each other. So the execution of the first method never ended. The code looked something like this (extremly simplified):
void loop() {
methodOne();
}
void methodOne() {
// ... some other code and conditions
methodTwo();
}
void methodTwo() {
// ... some other code and conditions
methodOne();
}Foto von Vishnu Mohanan auf Unsplash
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