https://devzone.nordicsemi.com/f/nordic-q-a/50280/free-rtos-and-loggingHI, I am playing around with the &quot;usbd_ble_uart_freertos&quot; example of SDK version 15.3. When I create another Task and try to write log entries (NRF_LOG_INFO(&quot;Test&quot;)) i see a few entries (I am using NRF_LOG_FLSUH()) in the debug output window but afteren-USTelligent Community 13Wed, 31 Jul 2019 07:42:14 GMThttps://devzone.nordicsemi.com/thread/201426?ContentTypeID=1Wed, 31 Jul 2019 07:42:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6e56067e-17c8-4ac9-81f5-22c945b611a9Susheel Nuguru<p>logging is designed to use vApplicationIdleHook in FreeRTOS. So only when the rest of the tasks are idling, then only the logger task will run to flush out the queued logs. I have not tested how the flow works if you force flush logs from other tasks.</p><div style="clear:both;"></div>