I've been working from home and developed all the code for the ESP32-S2. It uses wifi and, when it doesn't have the credentials for hthe SSID it starts a webserver, shows a page where you can enter the SSID and pass, etc. The usual. I have many hours in the development of this and the rest where it enables the communication with a webserver after connecting to your network etc.
I've recently came back to the office and the ESPs (two boards) just refuse to work here. They start with their own AP, I connect to them, connect to the webserver but when it's time to serve the page, they just crash. And it's not always the same crash, sometimes it's
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[0;32mI (9654) wifi softAP: get handler - I ran?[0m
[0;32mI (9654) wifi softAP: /[0m
Guru Meditation Error: Core 0 panic'ed (LoadProhibited). Exception was unhandled.
Core 0 register dump:
PC : 0x4002bf2d PS : 0x00060033 A0 : 0x8002b50e A1 : 0x3ffc9290
A2 : 0x00000000 A3 : 0xf09d7484 A4 : 0xb0a0b510 A5 : 0x00000397
A6 : 0x0000000a A7 : 0x3ffec9d4 A8 : 0x8002be0b A9 : 0x3ffc9270
A10 : 0x3ffc94ec A11 : 0x3f002f60 A12 : 0x3ffecfa2 A13 : 0x3ffec9c0
A14 : 0x00000023 A15 : 0x3ffec9c0 SAR : 0x00000004 EXCCAUSE: 0x0000001c
EXCVADDR: 0xf09d7484 LBEG : 0x3ffecfa2 LEND : 0x3ffec9c0 LCOUNT : 0x40026089
Core 0 was running in ISR context:
EPC1 : 0x40112943 EPC2 : 0x00000000 EPC3 : 0x00000000 EPC4 : 0x00000000
Backtrace:0x4002bf2a:0x3ffc9290 0x4002b50b:0x3ffc92b0 0x4002b681:0x3ffc92d0 0x400261ae:0x3ffc92e0 0x4001ad9d:0x3ffecb50 |<-CORRUPTED
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[0;32mI (5872) wifi softAP: get handler - I ran?[0m
[0;32mI (5872) wifi softAP: /[0m
ESP-ROM:esp32s2-rc4-20191025
Build:Oct 25 2019
rst:0x8 (TG1WDT_SYS_RST),boot:0x8 (SPI_FAST_FLASH_BOOT)
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Guru Meditation Error: Core 0 panic'ed (LoadProhibited). Exception was unhandled.
Core 0 register dump:
PC : 0x4002bf2d PS : 0x00060033 A0 : 0x8002b50e A1 : 0x3ffc9290
A2 : 0x00000000 A3 : 0xf09d7484 A4 : 0xb0a0b510 A5 : 0x00000d42
A6 : 0x0000000a A7 : 0x3ffec9d4 A8 : 0x8002be0b A9 : 0x3ffc9270
A10 : 0x3ffc94ec A11 : 0x3f002f60 A12 : 0x3ffecfa2 A13 : 0x3ffec9c0
A14 : 0x00000024 A15 : 0x3ffec9c0 SAR : 0x00000004 EXCCAUSE: 0x0000001c
EXCVADDR: 0xf09d7484 LBEG : 0x3ffecfa2 LEND : 0x3ffec9c0 LCOUNT : 0x40026089
Core 0 was running in ISR context:
EPC1 : 0x40112943 EPC2 : 0x00000000 EPC3 : 0x00000000 EPC4 : 0x00000000
Backtrace:0x4002bf2a:0x3ffc9290 0x4002b50b:0x3ffc92b0 0x4002b681:0x3ffc92d0 0x400261ae:0x3ffc92e0 0x4001ad9d:0x3ffecb50 |<-CORRUPTED
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TaskHandle_t idle_0 = xTaskGetIdleTaskHandleForCPU(0);
if(idle_0 == NULL || esp_task_wdt_delete(idle_0) != ESP_OK){
ESP_LOGI(TAG,"Failed to remove Core 0 IDLE task from WDT");
}