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I was trying to make esp32 face recognition using the esp32 camera web server example in arduino , and everything works fine untill i press on face detection the frame is frozen , module restarted and put this error to serial monitor :


CORRUPT HEAP: Bad head at 0x3ffe2eb4. Expected 0xabba1234 got 0x00000008
abort() was called at PC 0x4008a64d on core 1

ELF file SHA256: 0000000000000000


Backtrace: 0x4008df7c:0x3ffe1c30 0x4008e1f5:0x3ffe1c50 0x4008a64d:0x3ffe1c70

0x4008a779:0x3ffe1ca0 0x400f97cb:0x3ffe1cc0 0x400f5a61:0x3ffe1f80 0x400f59f0:0x3ffe1fd0

0x40093545:0x3ffe2000 0x40082976:0x3ffe2020 0x4008a545:0x3ffe2040 0x4000bec7:0x3ffe2060

0x400d1bc9:0x3ffe2080 0x401194f5:0x3ffe2230 0x40119bfd:0x3ffe2260 0x40119cb5:0x3ffe22f0 
0x4011a088:0x3ffe2310 0x40118774:0x3ffe2330 0x401187cb:0x3ffe2370 0x4008fe86:0x3ffe2390


Rebooting...
ets Jun  8 2016 00:22:57


rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:1216
ho 0 tail 12 room 4
load:0x40078000,len:10944
load:0x40080400,len:6388
entry 0x400806b4

I tried erasing flash bt it made the same error again I am using Arduino IDE 1.8.12 , esp32-cam operating at 5 volts from the programmer (also tried other external power supplies) and these are the pictures of settings : (also used wrover kit in programming settings with huge app >3mb)

Chip name enter image description here ESP32 Cam enter image description here FTDI Programmer enter image description here AI THINKER enter image description here Settings enter image description here

I want to make a face recognition door lock , if this doesn't work could anyone refer me to how can I get facial recognition on esp32 cam with any other way?

mpromonet
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Ahmed Hawwas
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3 Answers3

2

I don't have enough reputation to be able to add a comment, but using the answer from Andrew Hart I was able to resolve this. For completeness of this thread in case the linked solution ever disappears:

Locate these sections from the app_httpd.cpp:

if (net_boxes){
    detected = true;
    if(recognition_enabled){
        face_id = run_face_recognition(image_matrix, net_boxes);
    }
    draw_face_boxes(image_matrix, net_boxes, face_id);
    free(net_boxes->score);
    free(net_boxes->box);
    free(net_boxes->landmark);
    free(net_boxes);

and

fr_recognize = esp_timer_get_time();
draw_face_boxes(image_matrix, net_boxes, face_id);
free(net_boxes->score);
free(net_boxes->box);
free(net_boxes->landmark);
free(net_boxes);

replace the 4 free's in each block with dl_lib_free.

Aubs
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1

Rollback your ESP32 board driver to 1.04. works for me ;-)

Jacobski
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0

I ran into this issue with the same setup. This Github issue seems identical to ours, and applying the fix in this comment quickly resolved it for me: https://github.com/espressif/arduino-esp32/issues/5128#issuecomment-851785970. Good luck!

Andrew Hart
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