Page 1 of 1

ESP32 and GURUMEDITATION Error while handling the webpage

Posted: Fri Jan 11, 2019 10:17 am
by futechiot
Hello there

i have created a nice web page(web-GUI) on ESP32 web server, to configure WiFi settings,access point credential setting and many more things.
that webpage contains HTML,CSS and JS files, I'm using ESPAsyncWebServer.h library to handle webpage from SPIFF memory.
the web-page works perfectly but some time it gives an error like below :

Code: Select all

Guru Meditation Error: Core  1 panic'ed (Illegal Instruction). Exception was unhandled.
Core 1 register dump:
PC      : 0x69736e6f  PS      : 0x00060530  A0      : 0x800daa0d  A1      : 0x3ffbf210  
A2      : 0x3ffd36ec  A3      : 0x2e3e6576  A4      : 0x3ffd36d4  A5      : 0x3ffbf2c0  
A6      : 0x3ffbfe0c  A7      : 0x00000000  A8      : 0x800da999  A9      : 0x3ffbf200  
A10     : 0x3ffd36ec  A11     : 0x3ffbf21c  A12     : 0x3ffbf218  A13     : 0x3ffd5318  
A14     : 0x00000000  A15     : 0x00000000  SAR     : 0x0000000a  EXCCAUSE: 0x00000000  
EXCVADDR: 0x00000000  LBEG    : 0x4000c2e0  LEND    : 0x4000c2f6  LCOUNT  : 0xffffffff  

Backtrace: 0x69736e6f:0x3ffbf210 0x400daa0a:0x3ffbf240 0x400dad01:0x3ffbf280 0x400dad73:0x3ffbf2b0
and esp32 not able to load that web page sometimes.
can anyone explain this error and why i'm getting this type of error and how to solve this?


Re: ESP32 and GURUMEDITATION Error while handling the webpage

Posted: Sat Jan 12, 2019 5:16 am
by ESP_Sprite
Looks like you're overwriting a function pointer with something; if you look at the current PC, it's not pointing to any valid address but contains instead the ascii characters 'isno'. Perhaps that's part of a buffer you're overflowing somewhere?