console and threads

I have a simple application which tries to use a console->Printf from another thread created by the same application. It seems not to be possible as application crashes on that with KERN-EXEC 0.

relevant part of the app itself:
LOCAL_C void doExampleL()
{
   _LIT(KHelloWorldText,"Hello TestConsole3!\n");
   console->Printf(KHelloWorldText);
   DoThreadConsoleTest();
}

void TestPrintf(const TPtrC msg);
static TInt threadFunc(TAny *data);
void DoThreadConsoleTest()
{
   RThread th;
   th.Create(_L("ConsoleTestThread"),(TThreadFunction)threadFunc,
      4096,KMinHeapSize,KMinHeapSize*2,(TAny*)NULL);
   th.Resume();
}

TInt threadFunc(TAny*)
{
   for(TInt i=0; i<25; i++)
   {
      TestPrintf(_L("I print now"));
      User::After(100*1000);
   }
   return 0;
}

void TestPrintf(const TPtrC msg)
{
   console->Printf(msg);
}


Ahti.