esp32 crash

[VormsThierry]

Hello,
I use Arduino compiler 3.07, web server ESPAsyncWebServer and other libraries.
The board is ESP32 dev module or ESP32 WROOM-DA module
The system work well, but after fiew minutes, the esp crash.
Even if I add debug message, i see nothing that can help me:
ets Jul 29 2019 12:21:46

rst:0x8 (TG1WDT_SYS_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
configsip: 153911750, SPIWP:0xe6
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0030,len:4832
load:0xffffffff,len:-1
ets Jul 29 2019 12:21:46

rst:0x7 (TG0WDT_SYS_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
configsip: 153911750, 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:0x3fff0030,len:4832
load:0xffffffff,len:-1
ets Jul 29 2019 12:21:46

rst:0x7 (TG0WDT_SYS_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
configsip: 153911750, 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:0x3fff0030,len:4832
load:0xffffffff,len:-1
ets Jul 29 2019 12:21:46

After a while, i recive messages:
rst:0x7 (TG0WDT_SYS_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
invalid header: 0xffffffff
invalid header: 0xffffffff
invalid header: 0xffffffff
invalid header: 0xffffffff
invalid header: 0xffffffff
invalid header: 0xffffffff
invalid header: 0xffffffff
invalid header: 0xffffffff
invalid header: 0xffffffff
invalid header: 0xffffffff
invalid header: 0xffffffff
invalid header: 0xffffffff
invalid header: 0xffffffff
invalid header: 0xffffffff
invalid header: 0xffffffff
invalid header: 0xffffffff
invalid header: 0xffffffff
invalid header: 0xffffffff
invalid he⸮ets Jul 29 2019 12:21:46

If I reset the esp, it reboot an work for fiew minutes.
Many thanks for your help, i need to debug this as soon as possible
Best regards

[lbernstone]

What is your physical hardware? The error looks like there is an issue with your flash. Perhaps you are using pins that the flash needs (gpio 6-11 + 16/17 for psram).

[VormsThierry]

Hello, thanks for your reply.
I use Kincony kc868-a8s card: https://www.kincony.com/kc868-a8s-hardw ... tails.html
The chip is ESP32-WROOM-32E and I select ESP32WROOM-DA module
Thanks for your help.
Thierry

[VormsThierry]

I use only pin 2, 32,33,34,36
Thierry

[lbernstone]

If a known good example like the OTAWebUpdater gives you this wdt/invalid header error, then you have a problem with your hardware (most likely bad flash ram).