Error starting LinuxCNC sim axis

Error report created by /usr/lib/tcltk/linuxcnc/show_errors.tcl: Print file information: RUN_IN_PLACE=no LINUXCNC_DIR= LINUXCNC_BIN_DIR=/usr/bin LINUXCNC_TCL_DIR=/usr/lib/tcltk/linuxcnc LINUXCNC_SCRIPT_DIR= LINUXCNC_RTLIB_DIR=/usr/lib/linuxcnc/modules LINUXCNC_CONFIG_DIR= LINUXCNC_LANG_DIR=/usr/lib/tcltk/linuxcnc/msgs INIVAR=inivar HALCMD=halcmd LINUXCNC_EMCSH=/usr/bin/wish8.6 LINUXCNC - 2.9.0~pre1 Machine configuration directory is '/home/ntu/linuxcnc/configs/sim.axis' Machine configuration file is 'axis.ini' INIFILE=/home/ntu/linuxcnc/configs/sim.axis/axis.ini VERSION=1.1 PARAMETER_FILE=sim.var TPMOD= HOMEMOD= TASK=milltask HALUI=halui DISPLAY=axis COORDINATES=X Y Z KINEMATICS=trivkins Starting LinuxCNC... Starting LinuxCNC server program: linuxcncsvr Loading Real Time OS, RTAPI, and HAL_LIB modules Starting LinuxCNC IO program: io Starting HAL User Interface program: halui linuxcnc TPMOD=tpmod HOMEMOD=homemod EMCMOT=motmod Found file(lib): /usr/share/linuxcnc/hallib/core_sim.hal Found file(lib): /usr/share/linuxcnc/hallib/sim_spindle_encoder.hal Found file(lib): /usr/share/linuxcnc/hallib/axis_manualtoolchange.hal Found file(lib): /usr/share/linuxcnc/hallib/simulated_home.hal Found file(lib): /usr/share/linuxcnc/hallib/check_xyz_constraints.hal Found file(REL): ./cooling.hal Shutting down and cleaning up LinuxCNC... Removing HAL_LIB, RTAPI, and Real Time OS modules Removing NML shared memory segments Debug file information: Note: Using POSIX realtime count= and names= are mutually exclusive and2: rtapi_app_main: Invalid argument (-22) ./cooling.hal:2: waitpid failed /usr/bin/rtapi_app and2 ./cooling.hal:2: /usr/bin/rtapi_app exited without becoming ready ./cooling.hal:2: insmod for and2 failed, returned -1 4401 Stopping realtime threads Unloading hal components and2: not loaded <commandline>:0: exit value: 255 <commandline>:0: rmmod failed, returned -1 <commandline>:0: unloadrt failed Note: Using POSIX realtime