random WDT resets in SDK driver

[ememberus]

Hello
I am getting random resets due to HW watchdog timeouts.

According to system_get_rst_info(),
reason=1 (HW WDT), cause=4 (?), and
register epc1 points to wDev_ProcessFiq.
Other register values are zeros.

Can anyone tell what this means?
Or found a workaround?

Thanks

[ESP_Faye]

Hi,

Hardware watchdog reset, usually because that CPU is occupied for a long time somewhere.

Or you can provide your test code, we will help debug it.

Thanks for your interest in ESP8266!

[ememberus]

I do not use hardware interrupts, therefore,

CPU is occupied for a long time somewhere

means somewhere in wDev_ProcessFiq or related SDK calls.

I strongly suspect a bug.
Please, INVESTIGATE.