ESP32 ESP32.enableWifi(false) causes an Guru Meditation Error

[vgorn]

After executing the code ESP32.enableWifi(false), esp32 constantly restarts with an error:

>ESP32.enableWifi(false)
Erasing saved code.
Done!
I (10418) wifi:flush txq
I (10419) wifi:stop sw txq
I (10420) wifi:lmac stop hw txq
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:2
load:0x3fff0018,len:4
load:0x3fff001c,len:2984
load:0x40078000,len:10700
load:0x40080400,len:5236
entry 0x40080658
E (572) psram: PSRAM ID read error: 0xffffffff
E (572) spiram: SPI RAM enabled but initialization failed. Bailing out.
E (572) spiram: SPI RAM not initialized

 ____                 _ 
|  __|___ ___ ___ _ _|_|___ ___ 
|  __|_ -| . |  _| | | |   | . |
|____|___|  _|_| |___|_|_|_|___|
         |_| espruino.com
 2v27.82 (c) 2025 G.Williams

Espruino is Open Source. Our work is supported
only by sales of official boards and donations:
http://espruino.com/Donate

Guru Meditation Error: Core  0 panic'ed (LoadProhibited). Exception was unhandled.
Core 0 register dump:
PC      : 0x401caed0  PS      : 0x00060430  A0      : 0x801bc4b3  A1      : 0x3ffea170  
A2      : 0x3ffcf354  A3      : 0x3ffea1a0  A4      : 0x00000006  A5      : 0x00000001  
A6      : 0xb33fffff  A7      : 0x000004ba  A8      : 0x00000000  A9      : 0x3ffea170  
A10     : 0x00000002  A11     : 0x3ffea170  A12     : 0xffffffff  A13     : 0x00000000  
A14     : 0xb33fffff  A15     : 0x00000043  SAR     : 0x0000000c  EXCCAUSE: 0x0000001c  
EXCVADDR: 0x00000000  LBEG    : 0x40092712  LEND    : 0x4009271d  LCOUNT  : 0x00000000  

ELF file SHA256: 0000000000000000

Backtrace: 0x401caecd:0x3ffea170 0x401bc4b0:0x3ffea1a0 0x401cb47d:0x3ffea1d0 0x401cb60e:0x3ffea1f0 0x401bb629:0x3ffea230 0x40135d45:0x3ffea250 0x40133de8:0x3ffea2b0 0x401522b5:0x3ffea2d0 0x40152569:0x3ffea2f0 0x40124668:0x3ffea350 0x40129ad6:0x3ffea370 0x40129cbd:0x3ffea460 0x40138994:0x3ffea480

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

Board esp-wroom-32

[joakim]

Similar thing on ESP32-S3.

Click to expand

[19:48:16]>ESP32.enableWifi(false)
[19:48:16]Erasing saved code.
[19:48:16]Done!
[19:48:16]I (161016) wifi:flush txq
[19:48:16]I (161016) wifi:stop sw txq
[19:48:16]I (161017) wifi:lmac stop hw txq
[19:48:16]ESP-ROM:esp32s3-20210327
[19:48:16]Build:Mar 27 2021
[19:48:16]rst:0xc (RTC_SW_CPU_RST),boot:0x2b (SPI_FAST_FLASH_BOOT)
[19:48:16]Saved PC:0x40375cb0
[19:48:16]SPIWP:0xee
[19:48:16]mode:DIO, clock div:1
[19:48:16]load:0x3fce3808,len:0x16c8
[19:48:16]load:0x403c9700,len:0xbd4
[19:48:16]load:0x403cc700,len:0x2fb0
[19:48:16]entry 0x403c9954
[19:48:16]I (24) boot: ESP-IDF v4.4.8 2nd stage bootloader
[19:48:16]I (24) boot: compile time 00:09:39
[19:48:16]I (24) boot: Multicore bootloader
[19:48:16]I (26) boot: chip revision: v0.2
[19:48:16]I (30) boot.esp32s3: Boot SPI Speed : 80MHz
[19:48:16]I (35) boot.esp32s3: SPI Mode       : DIO
[19:48:16]I (39) boot.esp32s3: SPI Flash Size : 8MB
[19:48:16]I (44) boot: Enabling RNG early entropy source...
[19:48:16]I (50) boot: Partition Table:
[19:48:16]I (53) boot: ## Label            Usage          Type ST Offset   Length
[19:48:16]I (60) boot:  0 nvs              WiFi data        01 02 00009000 00006000
[19:48:16]I (68) boot:  1 phy_init         RF data          01 01 0000f000 00001000
[19:48:16]I (75) boot:  2 factory          factory app      00 00 00010000 001f4000
[19:48:16]I (83) boot:  3 flash            Unknown data     01 40 00310000 00010000
[19:48:16]I (90) boot:  4 storage          Unknown data     01 06 00320000 000e0000
[19:48:16]I (98) boot: End of partition table
[19:48:16]I (102) esp_image: segment 0: paddr=00010020 vaddr=3c150020 size=440d4h (278740) map
[19:48:16]I (160) esp_image: segment 1: paddr=000540fc vaddr=3fc9f9a0 size=047f0h ( 18416) load
[19:48:16]I (165) esp_image: segment 2: paddr=000588f4 vaddr=40374000 size=07724h ( 30500) load
[19:48:16]I (173) esp_image: segment 3: paddr=00060020 vaddr=42000020 size=146488h (1336456) map
[19:48:17]I (414) esp_image: segment 4: paddr=001a64b0 vaddr=4037b724 size=14278h ( 82552) load
[19:48:17]I (433) esp_image: segment 5: paddr=001ba730 vaddr=600fe000 size=0002ch (    44) load
[19:48:17]I (444) boot: Loaded app from partition at offset 0x10000
[19:48:17]I (444) boot: Disabling RNG early entropy source...
[19:48:17]I (456) cpu_start: Multicore app
[19:48:17]I (456) cpu_start: Pro cpu up.
[19:48:17]I (456) cpu_start: Starting app cpu, entry point is 0x4037569c
[19:48:17]I (441) cpu_start: App cpu up.
[19:48:17]I (474) cpu_start: Pro cpu start user code
[19:48:17]I (474) cpu_start: cpu freq: 240000000
[19:48:17]I (474) cpu_start: Application information:
[19:48:17]I (477) cpu_start: Project name:     espruino
[19:48:17]I (482) cpu_start: App version:      29992fe1f
[19:48:17]I (487) cpu_start: Compile time:     Jan 21 2026 00:09:04
[19:48:17]I (493) cpu_start: ELF file SHA256:  90af3239235b5f7c...
[19:48:17]I (499) cpu_start: ESP-IDF:          v4.4.8
[19:48:17]I (504) cpu_start: Min chip rev:     v0.0
[19:48:17]I (508) cpu_start: Max chip rev:     v0.99 
[19:48:17]I (513) cpu_start: Chip rev:         v0.2
[19:48:17]I (518) heap_init: Initializing. RAM available for dynamic allocation:
[19:48:17]I (525) heap_init: At 3FCAEC08 len 0003AB08 (234 KiB): D/IRAM
[19:48:17]I (532) heap_init: At 3FCE9710 len 00005724 (21 KiB): STACK/DIRAM
[19:48:17]I (538) heap_init: At 3FCF0000 len 00008000 (32 KiB): DRAM
[19:48:17]I (544) heap_init: At 600FE02C len 00001FD4 (7 KiB): RTCRAM
[19:48:17]I (551) spi_flash: detected chip: gd
[19:48:17]I (555) spi_flash: flash io: dio
[19:48:17]I (560) sleep: Configure to isolate all GPIO pins in sleep state
[19:48:17]I (566) sleep: Enable automatic switching of GPIO sleep configuration
[19:48:17]I (573) coexist: coexist rom version e7ae62f
[19:48:17]I (578) cpu_start: Starting scheduler on PRO CPU.
[19:48:17]I (0) cpu_start: Starting scheduler on APP CPU.
[19:48:17]WARNING: Bluetooth is disabled per ESP32.enableBLE(false)
[19:48:17]
[19:48:17]E (625) gpio: gpio_set_direction(275): GPIO number error
[19:48:17]E (626) gpio: gpio_set_pull_mode(239): GPIO number error
[19:48:17]E (629) gpio: gpio_set_direction(275): GPIO number error
[19:48:17]E (635) gpio: gpio_set_pull_mode(239): GPIO number error
[19:48:17]Guru Meditation Error: Core  0 panic'ed (StoreProhibited). Exception was unhandled.
[19:48:17]
[19:48:17]Core  0 register dump:
[19:48:17]PC      : 0x400570e8  PS      : 0x00060c30  A0      : 0x82011adc  A1      : 0x3fcb5010  
[19:48:17]A2      : 0x00000000  A3      : 0x00000000  A4      : 0x00034536  A5      : 0x00000000  
[19:48:17]A6      : 0x00000003  A7      : 0x00003453  A8      : 0x803765ed  A9      : 0x3fcb4fe0  
[19:48:17]A10     : 0x00000000  A11     : 0x00001800  A12     : 0x00000000  A13     : 0x00000027  
[19:48:17]A14     : 0x00000001  A15     : 0x3fca5d90  SAR     : 0x00000013  EXCCAUSE: 0x0000001d  
[19:48:17]EXCVADDR: 0x00000000  LBEG    : 0x400570e8  LEND    : 0x400570f3  LCOUNT  : 0x00003452  
[19:48:17]
[19:48:17]
[19:48:17]Backtrace: 0x400570e5:0x3fcb5010 0x42011ad9:0x3fcb5020 0x42011b15:0x3fcb5040 0x42009b22:0x3fcb5060 0x40386c95:0x3fcb5090
[19:48:17]
[19:48:17]
[19:48:17]
[19:48:17]
[19:48:17]ELF file SHA256: 90af3239235b5f7c
[19:48:17]
[19:48:17]Rebooting...

I had just before disabled BLE, hence the warning. It did not produce a guru meditation error and appeared to work.

Click to expand

[19:45:35]>ESP32.enableBLE(false)
[19:45:35]Erasing saved code.
[19:45:35]Done!
[19:45:35]I (16946) wifi:flush txq
[19:45:35]I (16946) wifi:stop sw txq
[19:45:35]I (16947) wifi:lmac stop hw txq
[19:45:35]ESP-ROM:esp32s3-20210327
[19:45:35]Build:Mar 27 2021
[19:45:35]rst:0xc (RTC_SW_CPU_RST),boot:0x2b (SPI_FAST_FLASH_BOOT)
[19:45:35]Saved PC:0x40375cb0
[19:45:35]SPIWP:0xee
[19:45:35]mode:DIO, clock div:1
[19:45:35]load:0x3fce3808,len:0x16c8
[19:45:35]load:0x403c9700,len:0xbd4
[19:45:35]load:0x403cc700,len:0x2fb0
[19:45:35]entry 0x403c9954
[19:45:35]I (24) boot: ESP-IDF v4.4.8 2nd stage bootloader
[19:45:35]I (24) boot: compile time 00:09:39
[19:45:35]I (24) boot: Multicore bootloader
[19:45:35]I (26) boot: chip revision: v0.2
[19:45:35]I (30) boot.esp32s3: Boot SPI Speed : 80MHz
[19:45:35]I (35) boot.esp32s3: SPI Mode       : DIO
[19:45:35]I (39) boot.esp32s3: SPI Flash Size : 8MB
[19:45:35]I (44) boot: Enabling RNG early entropy source...
[19:45:35]I (50) boot: Partition Table:
[19:45:35]I (53) boot: ## Label            Usage          Type ST Offset   Length
[19:45:35]I (60) boot:  0 nvs              WiFi data        01 02 00009000 00006000
[19:45:35]I (68) boot:  1 phy_init         RF data          01 01 0000f000 00001000
[19:45:35]I (75) boot:  2 factory          factory app      00 00 00010000 001f4000
[19:45:35]I (83) boot:  3 flash            Unknown data     01 40 00310000 00010000
[19:45:35]I (90) boot:  4 storage          Unknown data     01 06 00320000 000e0000
[19:45:35]I (98) boot: End of partition table
[19:45:35]I (102) esp_image: segment 0: paddr=00010020 vaddr=3c150020 size=440d4h (278740) map
[19:45:35]I (160) esp_image: segment 1: paddr=000540fc vaddr=3fc9f9a0 size=047f0h ( 18416) load
[19:45:35]I (165) esp_image: segment 2: paddr=000588f4 vaddr=40374000 size=07724h ( 30500) load
[19:45:35]I (173) esp_image: segment 3: paddr=00060020 vaddr=42000020 size=146488h (1336456) map
[19:45:36]I (414) esp_image: segment 4: paddr=001a64b0 vaddr=4037b724 size=14278h ( 82552) load
[19:45:36]I (433) esp_image: segment 5: paddr=001ba730 vaddr=600fe000 size=0002ch (    44) load
[19:45:36]I (444) boot: Loaded app from partition at offset 0x10000
[19:45:36]I (444) boot: Disabling RNG early entropy source...
[19:45:36]I (456) cpu_start: Multicore app
[19:45:36]I (456) cpu_start: Pro cpu up.
[19:45:36]I (456) cpu_start: Starting app cpu, entry point is 0x4037569c
[19:45:36]I (441) cpu_start: App cpu up.
[19:45:36]I (474) cpu_start: Pro cpu start user code
[19:45:36]I (474) cpu_start: cpu freq: 240000000
[19:45:36]I (474) cpu_start: Application information:
[19:45:36]I (477) cpu_start: Project name:     espruino
[19:45:36]I (482) cpu_start: App version:      29992fe1f
[19:45:36]I (487) cpu_start: Compile time:     Jan 21 2026 00:09:04
[19:45:36]I (493) cpu_start: ELF file SHA256:  90af3239235b5f7c...
[19:45:36]I (499) cpu_start: ESP-IDF:          v4.4.8
[19:45:36]I (504) cpu_start: Min chip rev:     v0.0
[19:45:36]I (508) cpu_start: Max chip rev:     v0.99 
[19:45:36]I (513) cpu_start: Chip rev:         v0.2
[19:45:36]I (518) heap_init: Initializing. RAM available for dynamic allocation:
[19:45:36]I (525) heap_init: At 3FCAEC08 len 0003AB08 (234 KiB): D/IRAM
[19:45:36]I (532) heap_init: At 3FCE9710 len 00005724 (21 KiB): STACK/DIRAM
[19:45:36]I (538) heap_init: At 3FCF0000 len 00008000 (32 KiB): DRAM
[19:45:36]I (544) heap_init: At 600FE02C len 00001FD4 (7 KiB): RTCRAM
[19:45:36]I (551) spi_flash: detected chip: gd
[19:45:36]I (555) spi_flash: flash io: dio
[19:45:36]I (560) sleep: Configure to isolate all GPIO pins in sleep state
[19:45:36]I (566) sleep: Enable automatic switching of GPIO sleep configuration
[19:45:36]I (573) coexist: coexist rom version e7ae62f
[19:45:36]I (578) cpu_start: Starting scheduler on PRO CPU.
[19:45:36]I (0) cpu_start: Starting scheduler on APP CPU.
[19:45:36]WARNING: Bluetooth is disabled per ESP32.enableBLE(false)
[19:45:36]
[19:45:36]I (626) pp: pp rom version: e7ae62f
[19:45:36]I (627) net80211: net80211 rom version: e7ae62f
[19:45:36]I (628) wifi:wifi driver task: 3fcf4e34, prio:23, stack:6656, core=0
[19:45:36]I (629) system_api: Base MAC address is not set
[19:45:36]I (629) system_api: read default base MAC address from EFUSE
[19:45:36]I (637) wifi:wifi firmware version: ff661c3
[19:45:36]I (639) wifi:wifi certification version: v7.0
[19:45:36]I (643) wifi:config NVS flash: enabled
[19:45:36]I (646) wifi:config nano formating: disabled
[19:45:36]I (651) wifi:Init data frame dynamic rx buffer num: 32
[19:45:36]I (655) wifi:Init static rx mgmt buffer num: 5
[19:45:36]I (659) wifi:Init management short buffer num: 32
[19:45:36]I (664) wifi:Init dynamic tx buffer num: 32
[19:45:36]I (668) wifi:Init static tx FG buffer num: 2
[19:45:36]I (672) wifi:Init static rx buffer size: 1600
[19:45:36]I (676) wifi:Init static rx buffer num: 10
[19:45:36]I (680) wifi:Init dynamic rx buffer num: 32
[19:45:36]I (684) wifi_init: rx ba win: 6
[19:45:36]I (687) wifi_init: tcpip mbox: 32
[19:45:36]I (691) wifi_init: udp mbox: 6
[19:45:36]I (695) wifi_init: tcp mbox: 6
[19:45:36]I (699) wifi_init: tcp tx win: 5744
[19:45:36]I (703) wifi_init: tcp rx win: 5744
[19:45:36]I (707) wifi_init: tcp mss: 1440
[19:45:36]I (711) wifi_init: WiFi IRAM OP enabled
[19:45:36]I (716) wifi_init: WiFi RX IRAM OP enabled
[19:45:36]E (721) gpio: gpio_set_direction(275): GPIO number error
[19:45:36]E (726) gpio: gpio_set_pull_mode(239): GPIO number error
[19:45:36]E (732) gpio: gpio_set_direction(275): GPIO number error
[19:45:36]E (738) gpio: gpio_set_pull_mode(239): GPIO number error
[19:45:37]
[19:45:37] ____                 _ 
[19:45:37]|  __|___ ___ ___ _ _|_|___ ___ 
[19:45:37]|  __|_ -| . |  _| | | |   | . |
[19:45:37]|____|___|  _|_| |___|_|_|_|___|
[19:45:37]         |_| espruino.com
[19:45:37] 2v28 (c) 2025 G.Williams
[19:45:37]
[19:45:37]Espruino is Open Source. Our work is supported
[19:45:37]only by sales of official boards and donations:
[19:45:37]http://espruino.com/Donate
[19:45:37]
[19:45:37]I (1583) phy_init: phy_version 670,b7bc9b9,Apr 30 2024,10:54:13
[19:45:37]I (1621) wifi:mode : softAP (48:ca:43:39:5c:55)
[19:45:37]I (1622) wifi:Total power save buffer number: 16
[19:45:37]I (1622) wifi:Init max length of beacon: 752/752
[19:45:37]I (1623) wifi:Init max length of beacon: 752/752
[19:47:37]>ESP32.getState()
[19:47:37]={ 
[19:47:37]  sdkVersion: "v4.4.8", 
[19:47:37]  freeHeap: 39688, BLE: false, Wifi: true, minHeap: 38876 }

Maybe it has to do with jsVars?

on restart creates jsVars depending on available heap (actual additional 3900)

(From the software reference.)