Guru Meditation Error: Core 0 panic'ed (LoadProhibited) #1888

DDPF02 · 2023-01-21T11:44:52Z

DDPF02
Jan 21, 2023

Hi there,
Today I flashed my ESP32-Cams and installed the SD-Cards by following the official instructions. Now when I want to start the device I get a Guru Meditation Error: Core 0 panic'ed (LoadProhibited) error and the device resets. As a result, it is stuck in this bootloop forever. How can I fix this? Thanks in advance.

My logs:

I (6852) OTA: SHA-256 for current firmware: : 355e1c6ae8b38e8311d1d117c00cc1016379005a25333ffa59d3043261449699
I (6902) wifi:wifi driver task: 3ffd4c74, prio:23, stack:6656, core=0
I (6902) system_api: Base MAC address is not set
I (6902) system_api: read default base MAC address from EFUSE
I (6912) wifi:wifi firmware version: eeaa27d
I (6912) wifi:wifi certification version: v7.0
I (6912) wifi:config NVS flash: enabled
I (6912) wifi:config nano formating: disabled
I (6922) wifi:Init data frame dynamic rx buffer num: 16
I (6922) wifi:Init management frame dynamic rx buffer num: 16
I (6932) wifi:Init management short buffer num: 32
I (6932) wifi:Init static tx buffer num: 16
I (6942) wifi:Init tx cache buffer num: 16
I (6942) wifi:Init static rx buffer size: 1600
I (6952) wifi:Init static rx buffer num: 10
I (6952) wifi:Init dynamic rx buffer num: 16
I (6952) wifi_init: rx ba win: 6
I (6962) wifi_init: tcpip mbox: 32
I (6962) wifi_init: udp mbox: 6
I (6962) wifi_init: tcp mbox: 6
I (6972) wifi_init: tcp tx win: 5744
I (6972) wifi_init: tcp rx win: 5744
I (6982) wifi_init: tcp mss: 1440
I (6982) wifi_init: WiFi IRAM OP enabled
I (6992) wifi_init: WiFi RX IRAM OP enabled
Guru Meditation Error: Core  0 panic'ed (LoadProhibited). Exception was unhandled.

Core  0 register dump:
PC      : 0x4008baad  PS      : 0x00060730  A0      : 0x80112e4b  A1      : 0x3ffc3690  
A2      : 0x3ffc3778  A3      : 0x00000000  A4      : 0x000000ff  A5      : 0x0000ff00  
A6      : 0x00ff0000  A7      : 0xff000000  A8      : 0x00000000  A9      : 0x3ffc3650  
A10     : 0x3ffc3778  A11     : 0x3f4328b7  A12     : 0x00000000  A13     : 0x40112990  
A14     : 0x00000000  A15     : 0x3ffc3814  SAR     : 0x0000000d  EXCCAUSE: 0x0000001c  
EXCVADDR: 0x00000000  LBEG    : 0x4008baad  LEND    : 0x4008bac5  LCOUNT  : 0xffffffff  


Backtrace:0x4008baaa:0x3ffc36900x40112e48:0x3ffc36a0 0x400d39e0:0x3ffc3850 0x40235776:0x3ffc39a0 




ELF file SHA256: 2279775554dcdb30

Rebooting...
ets Jul 29 2019 12:21:46

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:2
load:0x3fff0030,len:7664
load:0x40078000,len:15360
load:0x40080400,len:3744
entry 0x4008067c
I (27) boot: ESP-IDF 4.3.2 2nd stage bootloader
I (27) boot: compile time 20:02:47
I (27) boot: chip revision: 3
I (30) boot_comm: chip revision: 3, min. bootloader chip revision: 0
I (37) boot.esp32: SPI Speed      : 40MHz
I (42) boot.esp32: SPI Mode       : DIO
I (46) boot.esp32: SPI Flash Size : 4MB
I (51) boot: Enabling RNG early entropy source...
I (56) boot: Partition Table:
I (60) boot: ## Label            Usage          Type ST Offset   Length
I (67) boot:  0 nvs              WiFi data        01 02 00009000 00004000
I (74) boot:  1 otadata          OTA data         01 00 0000d000 00002000
I (82) boot:  2 phy_init         RF data          01 01 0000f000 00001000
I (89) boot:  3 ota_0            OTA app          00 10 00010000 001db000
I (97) boot:  4 ota_1            OTA app          00 11 001f0000 001db000
I (104) boot: End of partition table
I (109) boot_comm: chip revision: 3, min. application chip revision: 0
I (116) esp_image: segment 0: paddr=00010020 vaddr=3f400020 size=4bda0h (310688) map
I (243) esp_image: segment 1: paddr=0005bdc8 vaddr=3ffb0000 size=04250h ( 16976) load
I (250) esp_image: segment 2: paddr=00060020 vaddr=400d0020 size=166f00h (1470208) map
I (813) esp_image: segment 3: paddr=001c6f28 vaddr=3ffb4250 size=00038h (    56) load
I (813) esp_image: segment 4: paddr=001c6f68 vaddr=40080000 size=1b6a0h (112288) load
I (867) esp_image: segment 5: paddr=001e2610 vaddr=50000000 size=00010h (    16) load
I (881) boot: Loaded app from partition at offset 0x10000
I (881) boot: Disabling RNG early entropy source...
I (893) psram: This chip is ESP32-D0WD
I (894) spiram: Found 64MBit SPI RAM device
I (894) spiram: SPI RAM mode: flash 40m sram 40m
I (898) spiram: PSRAM initialized, cache is in low/high (2-core) mode.
I (906) cpu_start: Pro cpu up.
I (909) cpu_start: Starting app cpu, entry point is 0x40083b44
I (903) cpu_start: App cpu up.
I (1806) spiram: SPI SRAM memory test OK
I (1814) cpu_start: Pro cpu start user code
I (1814) cpu_start: cpu freq: 160000000
I (1814) cpu_start: Application information:
I (1817) cpu_start: Project name:     esp32cam-server-only
I (1823) cpu_start: App version:      v13.0.8
I (1828) cpu_start: Compile time:     Dec 19 2022 20:41:40
I (1834) cpu_start: ELF file SHA256:  2279775554dcdb30...
I (1840) cpu_start: ESP-IDF:          4.4.2
I (1846) heap_init: Initializing. RAM available for dynamic allocation:
I (1853) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (1859) heap_init: At 3FFC06F0 len 0001F910 (126 KiB): DRAM
I (1865) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM
I (1872) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (1878) heap_init: At 4009B6A0 len 00004960 (18 KiB): IRAM
I (1885) spiram: Adding pool of 4095K of external SPI memory to heap allocator
I (1894) spi_flash: detected chip: generic
I (1897) spi_flash: flash io: dio
I (1907) cpu_start: Starting scheduler on PRO CPU.
I (0) cpu_start: Starting scheduler on APP CPU.
I (1912) spiram: Reserving pool of 40K of internal memory for DMA/internal allocations
I (1922) MAIN: 





I (1922) gpio: GPIO[32]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0 
I (3932) gpio: GPIO[25]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:2 
I (3932) cam_hal: cam init ok
I (3932) sccb: pin_sda 26 pin_scl 27
I (3932) sccb: sccb_i2c_port=1

I (3942) gpio: GPIO[32]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0 
I (3972) camera: Detected camera at address=0x30
I (3972) camera: Detected OV2640 camera
I (3972) camera: Camera PID=0x26 VER=0x42 MIDL=0x7f MIDH=0xa2
I (4052) cam_hal: buffer_size: 32768, half_buffer_size: 4096, node_buffer_size: 2048, node_cnt: 16, total_cnt: 15
I (4052) cam_hal: Allocating 61440 Byte frame buffer in PSRAM
I (4062) cam_hal: cam config ok
I (4062) ov2640: Set PLL: clk_2x: 0, clk_div: 0, pclk_auto: 0, pclk_div: 8
I (6152) MAIN: Using SDMMC peripheral
Name: 00000
Type: SDHC/SDXC
Speed: 20 MHz
Size: 15240MB
I (6212) MAIN: =================================================
I (6222) MAIN: ==================== Startup ====================
I (6232) MAIN: =================================================
I (6242) MAIN: Branch: 'HEAD', Revision: 04f2f23+, Date/Time: 2022-12-19 20:41, Web UI: ?
I (6252) MAIN: Reset reason: Exception/panic
I (6272) OTA: Start CheckOTAUpdateCheck...
I (6282) OTA: SHA-256 for the partition table: : 9d4a2809ae90fb20709a8ca3dd3ac3462e1e73286bcd31b689060c91de06fa3a
I (6302) OTA: SHA-256 for bootloader: : 4a9573dafac5d5c79c43e5a356568332da3a99dd2e220da6ceeadc96d32708a2
I (6852) OTA: SHA-256 for current firmware: : 355e1c6ae8b38e8311d1d117c00cc1016379005a25333ffa59d3043261449699
I (6902) wifi:wifi driver task: 3ffd4c74, prio:23, stack:6656, core=0
I (6902) system_api: Base MAC address is not set
I (6902) system_api: read default base MAC address from EFUSE
I (6912) wifi:wifi firmware version: eeaa27d
I (6912) wifi:wifi certification version: v7.0
I (6912) wifi:config NVS flash: enabled
I (6912) wifi:config nano formating: disabled
I (6922) wifi:Init data frame dynamic rx buffer num: 16
I (6922) wifi:Init management frame dynamic rx buffer num: 16
I (6932) wifi:Init management short buffer num: 32
I (6932) wifi:Init static tx buffer num: 16
I (6942) wifi:Init tx cache buffer num: 16
I (6942) wifi:Init static rx buffer size: 1600
I (6952) wifi:Init static rx buffer num: 10
I (6952) wifi:Init dynamic rx buffer num: 16
I (6952) wifi_init: rx ba win: 6
I (6962) wifi_init: tcpip mbox: 32
I (6962) wifi_init: udp mbox: 6
I (6962) wifi_init: tcp mbox: 6
I (6972) wifi_init: tcp tx win: 5744
I (6972) wifi_init: tcp rx win: 5744
I (6982) wifi_init: tcp mss: 1440
I (6982) wifi_init: WiFi IRAM OP enabled
I (6992) wifi_init: WiFi RX IRAM OP enabled
Guru Meditation Error: Core  0 panic'ed (LoadProhibited). Exception was unhandled.

Core  0 register dump:
PC      : 0x4008baad  PS      : 0x00060730  A0      : 0x80112e4b  A1      : 0x3ffc3690  
A2      : 0x3ffc3778  A3      : 0x00000000  A4      : 0x000000ff  A5      : 0x0000ff00  
A6      : 0x00ff0000  A7      : 0xff000000  A8      : 0x00000000  A9      : 0x3ffc3650  
A10     : 0x3ffc3778  A11     : 0x3f4328b7  A12     : 0x00000000  A13     : 0x40112990  
A14     : 0x00000000  A15     : 0x3ffc3814  SAR     : 0x0000000d  EXCCAUSE: 0x0000001c  
EXCVADDR: 0x00000000  LBEG    : 0x4008baad  LEND    : 0x4008bac5  LCOUNT  : 0xffffffff  


Backtrace:0x4008baaa:0x3ffc36900x40112e48:0x3ffc36a0 0x400d39e0:0x3ffc3850 0x40235776:0x3ffc39a0 




ELF file SHA256: 2279775554dcdb30

Rebooting...
ets Jul 29 2019 12:21:46

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:2
load:0x3fff0030,len:7664
load:0x40078000,len:15360
load:0x40080400,len:3744
entry 0x4008067c
I (27) boot: ESP-IDF 4.3.2 2nd stage bootloader
I (27) boot: compile time 20:02:47
I (27) boot: chip revision: 3
I (30) boot_comm: chip revision: 3, min. bootloader chip revision: 0
I (37) boot.esp32: SPI Speed      : 40MHz
I (42) boot.esp32: SPI Mode       : DIO
I (46) boot.esp32: SPI Flash Size : 4MB
I (51) boot: Enabling RNG early entropy source...
I (56) boot: Partition Table:
I (60) boot: ## Label            Usage          Type ST Offset   Length
I (67) boot:  0 nvs              WiFi data        01 02 00009000 00004000
I (74) boot:  1 otadata          OTA data         01 00 0000d000 00002000
I (82) boot:  2 phy_init         RF data          01 01 0000f000 00001000
I (89) boot:  3 ota_0            OTA app          00 10 00010000 001db000
I (97) boot:  4 ota_1            OTA app          00 11 001f0000 001db000
I (104) boot: End of partition table
I (109) boot_comm: chip revision: 3, min. application chip revision: 0
I (116) esp_image: segment 0: paddr=00010020 vaddr=3f400020 size=4bda0h (310688) map
I (243) esp_image: segment 1: paddr=0005bdc8 vaddr=3ffb0000 size=04250h ( 16976) load
I (250) esp_image: segment 2: paddr=00060020 vaddr=400d0020 size=166f00h (1470208) map
I (813) esp_image: segment 3: paddr=001c6f28 vaddr=3ffb4250 size=00038h (    56) load
I (813) esp_image: segment 4: paddr=001c6f68 vaddr=40080000 size=1b6a0h (112288) load
I (867) esp_image: segment 5: paddr=001e2610 vaddr=50000000 size=00010h (    16) load
I (881) boot: Loaded app from partition at offset 0x10000
I (881) boot: Disabling RNG early entropy source...
I (893) psram: This chip is ESP32-D0WD
I (894) spiram: Found 64MBit SPI RAM device
I (894) spiram: SPI RAM mode: flash 40m sram 40m
I (898) spiram: PSRAM initialized, cache is in low/high (2-core) mode.
I (906) cpu_start: Pro cpu up.
I (909) cpu_start: Starting app cpu, entry point is 0x40083b44
I (903) cpu_start: App cpu up.
I (1806) spiram: SPI SRAM memory test OK
I (1814) cpu_start: Pro cpu start user code
I (1814) cpu_start: cpu freq: 160000000
I (1814) cpu_start: Application information:
I (1817) cpu_start: Project name:     esp32cam-server-only
I (1823) cpu_start: App version:      v13.0.8
I (1828) cpu_start: Compile time:     Dec 19 2022 20:41:40
I (1834) cpu_start: ELF file SHA256:  2279775554dcdb30...
I (1840) cpu_start: ESP-IDF:          4.4.2
I (1846) heap_init: Initializing. RAM available for dynamic allocation:
I (1853) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (1859) heap_init: At 3FFC06F0 len 0001F910 (126 KiB): DRAM
I (1865) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM
I (1872) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (1878) heap_init: At 4009B6A0 len 00004960 (18 KiB): IRAM
I (1885) spiram: Adding pool of 4095K of external SPI memory to heap allocator
I (1894) spi_flash: detected chip: generic
I (1897) spi_flash: flash io: dio
I (1907) cpu_start: Starting scheduler on PRO CPU.
I (0) cpu_start: Starting scheduler on APP CPU.
I (1912) spiram: Reserving pool of 40K of internal memory for DMA/internal allocations
I (1922) MAIN: 





I (1922) gpio: GPIO[32]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0 
I (3932) gpio: GPIO[25]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:2 
I (3932) cam_hal: cam init ok
I (3932) sccb: pin_sda 26 pin_scl 27
I (3932) sccb: sccb_i2c_port=1

I (3942) gpio: GPIO[32]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0 
I (3972) camera: Detected camera at address=0x30
I (3972) camera: Detected OV2640 camera
I (3972) camera: Camera PID=0x26 VER=0x42 MIDL=0x7f MIDH=0xa2
I (4052) cam_hal: buffer_size: 32768, half_buffer_size: 4096, node_buffer_size: 2048, node_cnt: 16, total_cnt: 15
I (4052) cam_hal: Allocating 61440 Byte frame buffer in PSRAM
I (4062) cam_hal: cam config ok
I (4062) ov2640: Set PLL: clk_2x: 0, clk_div: 0, pclk_auto: 0, pclk_div: 8
I (6152) MAIN: Using SDMMC peripheral
Name: 00000
Type: SDHC/SDXC
Speed: 20 MHz
Size: 15240MB

and so on.... I cannot even configure anything. And I am using this ESP32-Cam Board as suggested here:

https://de.aliexpress.com/item/1005002058453736.html?spm=a2g0o.order_detail.order_detail_item.11.48ad6368adQ6Cs&gatewayAdapt=glo2deu

Originally posted by @caco3 in #1732 (comment)

Answered by Slider0007

Jan 21, 2023

Make sure your wlan.ini is properly configured and located in the root folder of the SD card.

In general:
The whole content of sd-card folder which is included in the sd-card.zip needs to be placed to root of the SD card.

SD card root folder:
\config
\html
..
..
wlan.ini

View full answer

Slider0007 · 2023-01-21T13:14:29Z

Slider0007
Jan 21, 2023
Collaborator

Make sure your wlan.ini is properly configured and located in the root folder of the SD card.

In general:
The whole content of sd-card folder which is included in the sd-card.zip needs to be placed to root of the SD card.

SD card root folder:
\config
\html
..
..
wlan.ini

2 replies

caco3 Jan 21, 2023
Collaborator

this line indicates, that the sd card is not setup properly:
I (6242) MAIN: Branch: 'HEAD', Revision: 04f2f23+, Date/Time: 2022-12-19 20:41, Web UI: ?

note that it is unable to show the web ui version!

DDPF02 Jan 21, 2023
Author

My bad, now it's working perfectly! Thank you!

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Guru Meditation Error: Core 0 panic'ed (LoadProhibited) #1888

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Guru Meditation Error: Core 0 panic'ed (LoadProhibited) #1888

DDPF02 Jan 21, 2023

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Slider0007 Jan 21, 2023 Collaborator

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Jan 21, 2023

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