Esp32 Cam esp_camera_fb_get() causes Stack Canary error #11734
Description
Board
Esp32 Cam AI Thinker
Device Description
Plain Module
Hardware Configuration
Esp32 Cam upload board (CH-340C)
Version
v3.3.0
Type
Bug
IDE Name
Arduino IDE
Operating System
Windows 11
Flash frequency
20
PSRAM enabled
yes
Upload speed
115200
Description
Every time I called esp_camera_fb_get() function, it runs perfectly fine for the first iterations, but after a while, it just throws me errors. The Weird thing is that the Esp32 Cam Webserver example code runs perfectly without any problem. I tried removing the TCP part with capturing image code only left, but the error still occurs.
Sketch
bool SetupCamera()
{
camera_config_t config;
config.ledc_channel = LEDC_CHANNEL_0;
config.ledc_timer = LEDC_TIMER_0;
config.pin_d0 = Y2_GPIO_NUM;
config.pin_d1 = Y3_GPIO_NUM;
config.pin_d2 = Y4_GPIO_NUM;
config.pin_d3 = Y5_GPIO_NUM;
config.pin_d4 = Y6_GPIO_NUM;
config.pin_d5 = Y7_GPIO_NUM;
config.pin_d6 = Y8_GPIO_NUM;
config.pin_d7 = Y9_GPIO_NUM;
config.pin_xclk = XCLK_GPIO_NUM;
config.pin_pclk = PCLK_GPIO_NUM;
config.pin_vsync = VSYNC_GPIO_NUM;
config.pin_href = HREF_GPIO_NUM;
config.pin_sccb_sda = SIOD_GPIO_NUM;
config.pin_sccb_scl = SIOC_GPIO_NUM;
config.pin_pwdn = PWDN_GPIO_NUM;
config.pin_reset = RESET_GPIO_NUM;
config.xclk_freq_hz = 20000000;
config.pixel_format = PIXFORMAT_JPEG;
config.frame_size = FRAMESIZE_VGA; // 640x480
config.fb_location = CAMERA_FB_IN_PSRAM;
config.fb_count = 1;
config.jpeg_quality = 10;
config.grab_mode = CAMERA_GRAB_LATEST;
if (esp_camera_init(&config) != ESP_OK) {
return false;
}
return true;
}
bool ESP32ServerManager::sendImage() {
if (!(_client && _client.connected())) return false;
camera_fb_t* fb = esp_camera_fb_get();
if (!fb) {
Serial.println("Camera capture failed");
esp_camera_fb_return(fb);
return false;
}
uint32_t Header[4];
Header[0] = JPG_IMAGE;
Header[1] = fb->width;
Header[2] = fb->height;
Header[3] = fb->len;
_client.write(reinterpret_cast<uint8_t*>(Header), sizeof(Header));
_client.write(fb->buf, fb->len);
esp_camera_fb_return(fb);
//Serial.printf("Sent image %dx%d, size: %u bytes\n", fb->width, fb->height, fb->len);
return true;
}Debug Message
Guru Meditation Error: Core 0 panic'ed (Unhandled debug exception).
Debug exception reason: Stack canary watchpoint triggered (cam_task)
0x4008e1d3: xPortEnterCriticalTimeout at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/FreeRTOS-Kernel/portable/xtensa/include/freertos/portmacro.h line 552
0x400922fd: multi_heap_internal_lock at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/FreeRTOS-Kernel/portable/xtensa/include/freertos/portmacro.h line 581
0x40092332: multi_heap_malloc_impl at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/heap/multi_heap.c line 215
0x400924a8: multi_heap_malloc at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/heap/multi_heap_poisoning.c line 254
0x400830bf: heap_caps_aligned_alloc_base at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/heap/heap_caps_base.c line 93
0x400830d9: heap_caps_malloc_base at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/heap/heap_caps_base.c line 202
0x40082d55: heap_caps_malloc at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/heap/heap_caps.c line 84
0x4008e6c0: pvPortMalloc at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/heap_idf.c line 55
0x4008d771: xQueueGenericCreate at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/FreeRTOS-Kernel/queue.c line 545
0x4008d9e8: xQueueCreateMutex at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/FreeRTOS-Kernel/queue.c line 669
0x4008373e: lock_init_generic at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/newlib/src/locks.c line 75
0x40083786: lock_acquire_generic at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/newlib/src/locks.c line 133
0x400838e9: _lock_acquire_recursive at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/newlib/src/locks.c line 174
0x400e286d: uart_write at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/esp_driver_uart/src/uart_vfs.c line 236
0x400e6e39: esp_vfs_write at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/vfs/vfs.c line 982
0x400e64e1: console_write at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/esp_vfs_console/vfs_console.c line 83
0x400e6e39: esp_vfs_write at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/vfs/vfs.c line 982
0x4008a76e: __swrite at /builds/idf/crosstool-NG/.build/xtensa-esp-elf/src/newlib/newlib/libc/stdio/stdio.c line 94
0x40089bed: __sflush_r at /builds/idf/crosstool-NG/.build/xtensa-esp-elf/src/newlib/newlib/libc/stdio/fflush.c line 224
0x40089c3e: _fflush_r at /builds/idf/crosstool-NG/.build/xtensa-esp-elf/src/newlib/newlib/libc/stdio/fflush.c line 278
0x4008a13d: __sfvwrite_r at /builds/idf/crosstool-NG/.build/xtensa-esp-elf/src/newlib/newlib/libc/stdio/fvwrite.c line 251
0x4017052b: __sprint_r at /builds/idf/crosstool-NG/.build/xtensa-esp-elf/src/newlib/newlib/libc/stdio/vfprintf.c line 429
0x4016ff42: _vfprintf_r at /builds/idf/crosstool-NG/.build/xtensa-esp-elf/src/newlib/newlib/libc/stdio/vfprintf.c line 1774
0x40166c69: vprintf at /builds/idf/crosstool-NG/.build/xtensa-esp-elf/src/newlib/newlib/libc/stdio/vprintf.c line 34
0x4009357d: esp_log at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/log/src/log.c line 43
0x4011638d: cam_task at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/managed_components/espressif__esp32-camera/driver/cam_hal.c line 221
0x4008e0d1: vPortTaskWrapper at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/FreeRTOS-Kernel/portable/xtensa/port.c line 139
Other Steps to Reproduce
No response
I have checked existing issues, online documentation and the Troubleshooting Guide
- I confirm I have checked existing issues, online documentation and Troubleshooting guide.