TSK_MEMSTALL_RUNNING
psi_task_change(current, 0, TSK_MEMSTALL | TSK_MEMSTALL_RUNNING);
psi_task_change(current, TSK_MEMSTALL | TSK_MEMSTALL_RUNNING, 0);
clear |= TSK_MEMSTALL_RUNNING;
set |= TSK_MEMSTALL | TSK_MEMSTALL_RUNNING;
set |= TSK_MEMSTALL_RUNNING;