https://devzone.nordicsemi.com/f/nordic-q-a/48400/logging-with-freertos-and-thread-safetyHello, is the logging module thread-safe? Do I have to use a mutex when logging from a lot of tasks when using FreeRTOS or is the logging module thread-safe and I do not have to do this?en-USTelligent Community 13Thu, 13 Jun 2019 06:55:19 GMThttps://devzone.nordicsemi.com/thread/192553?ContentTypeID=1Thu, 13 Jun 2019 06:55:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c566239b-c244-4a91-8325-fb052ab318eeSusheel Nuguru<p>if nrf_mtx or&nbsp;sd_nvic_critical_region_enter or&nbsp;__disable_irq is not used in the driver you are using, then it is not being tested in multi thread scenario. It is then always best to assume that the application has to implement their own thread-safe mechanism for accessing any driver/libraries API in different thread contexts.</p><div style="clear:both;"></div>