RE: nrf logging api

user115812 — Mon, 23 May 2022 09:35:53 GMT

Hi Einar,

Thank you for your reply.

I am calling "NRF_LOG_INFO" from an ISR, and hence my Deferred logging is enabled as given below.

#define NRF_LOG_DEFERRED 1

So, I think I should keep extra buffer in my application.

RE: nrf logging api

user7377 — Mon, 23 May 2022 07:54:27 GMT

Hi,

If you do not use deferred logging, then this would be OK as logging happens immediately. With deferred logging this will not be OK though, as data is not copied to a dedicated buffer by default. So for volatile data like stack variables or variables that are overwritten (both is the case here), no should explicitly use NRF_LOG_PUSH to copy the string to an internal logger buffer. For instance like this:

NRF_LOG_INFO("Message: \"%s\"", NRF_LOG_PUSH(my_volatile_string));