RTOS/LAUNCHXL-F28379D: Swi issue, bad context error.

Part Number: LAUNCHXL-F28379D

Tool/software: TI-RTOS

Hello,

I am trying to add very simple Swi in RTSC project. I added idle function and swi in *.cfg file. Here is my code:

/*
 *  ======== main.c ========
 */
#include <xdc/cfg/global.h>
#include <xdc/std.h>

#include <xdc/runtime/Error.h>
#include <xdc/runtime/System.h>

#include <ti/sysbios/BIOS.h>

#include <ti/sysbios/knl/Task.h>
#include <ti/sysbios/knl/Swi.h>


Void swiFxn(UArg a0, UArg a1)
{
    System_printf("enter swiFxn()\n");

    System_printf("exit swiFxn()\n");

    System_flush(); /* force SysMin output to console */
}

Void idleFxn()
{
    Swi_post(swi0);
    //Task_sleep(1000);
}

/*
 *  ======== main ========
 */
Int main()
{ 
    System_printf("enter main()\n");

    BIOS_start();    /* does not return */
    return(0);
}

And here is log from a Console:

[C28xx_CPU1] enter main()
enter swiFxn()
exit swiFxn()
ti.sysbios.gates.GateMutex: line 99: assertion failure: A_badContext: bad calling context. See GateMutex API doc for details.
xdc.runtime.Error.raise: terminating execution

I have no idea why it doesn't work.

Any help appreciated.

BR,

Dawid.