Freertos software timer, RTT logs -> Hard Fault

[D233374]

Hello. 

I am trying to use FreeRTOS and have run into a problem. If I call logging in the FreeRTOS software timer handler, the program stops. 

Here is a simple example:

#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#include "nrf_drv_common.h"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"

#include "FreeRTOS.h"
#include "timers.h"
#include "task.h"

volatile TimerHandle_t xOneSec_Timer;

void blink_task(void *p){
    
    while(1){
        NRF_LOG_INFO("Blink");
        vTaskDelay(1000);
    }
};

void vOneSecTimer( TimerHandle_t xTimer ){
	configASSERT( xTimer );
	
    NRF_LOG_INFO("Timer");
}

int main(void)
{
    ret_code_t err_code;
    
    // Initialize.
    err_code = NRF_LOG_INIT(NULL);
    APP_ERROR_CHECK(err_code);
    NRF_LOG_DEFAULT_BACKENDS_INIT();

    NRF_LOG_INFO("Start");

    for(uint32_t i=0; i<20; i++){
        NRF_LOG_INFO("Count %d",i);
        for(uint32_t k=0; k<0x100000; k++){__NOP();};
    }
    
    xOneSec_Timer = xTimerCreate( "1STimer", 1000 , pdTRUE, NULL, vOneSecTimer);
    xTimerStart(xOneSec_Timer,0);

    xTaskCreate(blink_task, "Blink", 256, NULL, 2, NULL);
    vTaskStartScheduler();

    while(1);
}

The output to the Ozone terminal looks like this: I see a "Start" message, messages with a counter, but as soon as the timer handler is called, the program stops. If in the timer handler you do not call a log entry, but for example blink the LED, then everything works. I see messages from the blink task and blinking LED.

What am I doing wrong?