arc-alloc_lowmem_reap
/margin = arg0 - arg2/
{
	printf("%Y %d free pages, %d target, %d size req, %d margin (REAP!)", walltimestamp, arg0, arg2, arg1, margin);
}


/* dmu-tx_dirty
{
	printf("%Y %d MB zio_dirty_data_max", walltimestamp, arg0);
} */