looks like there's something badly wrong way below emc, python segfaults in 
libc - looks like incompatible libc and python versions:

[ 1956.652151] axis[16736]: segfault at 488bd12a ip 004aacc2 sp bfe4cec8 error 
6 in libc-2.11.1.so[39a000+153000]

if you find a core file, try this:

gdb /usr/bin/python core
backtrace
and post a few lines from the top of stack

--

your kernel oopsed during startup, see line 622 of dmesg, but that's likely not 
the issue and maybe a Parallels artefact, see the irqpoll hint
btw I run 10.04, non-RTAI kernel and linuxcnc-sim in virtualbox on a mac and 
its really stable; I gave up on Parallels eventually

-m

Am 23.01.2012 um 07:19 schrieb Tom Easterday:

> I am trying to install 2.5 under 10.04 running under Parallels on my Mac.  I 
> followed the instructions (related to installing -sim) here:  
> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Installing_EMC2#Building_emc2_simulator
> 
> Everything went fine (I believe), but when I try to run linuxcnc with one of 
> the default sim configurations it fails.  Any idea why this isn't working?
> 
> 
> I get this if I try gladevcp_panel sim config:
> 
> tom@ubuntu:~/emc2-dev/configs/sim/gladevcp$ linuxcnc
> LINUXCNC - 2.5.0-pre2
> Machine configuration directory is '/home/tom/emc2-dev/configs/sim/gladevcp'
> Machine configuration file is 'gladevcp_panel.ini'
> Starting LinuxCNC...
> /home/tom/emc2-dev/scripts/linuxcnc: line 687: 17928 Illegal instruction     
> $EMCDISPLAY -ini "$INIFILE" $EMCDISPLAYARGS $EXTRA_ARGS
> Shutting down and cleaning up LinuxCNC...
> Cleanup done
> EMC terminated with an error.  You can find more information in the log:
>    /home/tom/linuxcnc_debug.txt
> and
>    /home/tom/linuxcnc_print.txt
> as well as in the output of the shell command 'dmesg' and in the terminal
> tom@ubuntu:~/emc2-dev/configs/sim/gladevcp$ 
> 
> 
> This if I try axis:
> 
> tom@ubuntu:~/emc2-dev$ linuxcnc
> LINUXCNC - 2.5.0-pre2
> Machine configuration directory is '/home/tom/emc2-dev/configs/sim/axis'
> Machine configuration file is 'axis.ini'
> Starting LinuxCNC...
> /home/tom/emc2-dev/scripts/linuxcnc: line 687: 18317 Segmentation fault      
> $EMCDISPLAY -ini "$INIFILE" $EMCDISPLAYARGS $EXTRA_ARGS
> Shutting down and cleaning up LinuxCNC...
> Cleanup done
> EMC terminated with an error.  You can find more information in the log:
>    /home/tom/linuxcnc_debug.txt
> and
>    /home/tom/linuxcnc_print.txt
> as well as in the output of the shell command 'dmesg' and in the terminal
> tom@ubuntu:~/emc2-dev$ 
> 
> The linuxcnc_debug.txt shows (for either config):
> tom@ubuntu:~/emc2-dev$ more /home/tom/linuxcnc_debug.txt
> Can not find -sec MOT -var MOT -num 1 
> Can not find -sec IO -var IO -num 1 
> Can not find -sec LINUXCNC -var NML_FILE -num 1 
> Can not find -sec EMC -var NML_FILE -num 1 
> 18283
>  PID TTY      STAT   TIME COMMAND
> 18316
>  PID TTY      STAT   TIME COMMAND
> Stopping realtime threads
> Unloading hal components
> 
> The linuxcnc_print.txt shows (for either config):
> tom@ubuntu:~/emc2-dev$ more     /home/tom/linuxcnc_print.txt
> RUN_IN_PLACE=yes
> LINUXCNC_DIR=
> LINUXCNC_BIN_DIR=/home/tom/emc2-dev/bin
> LINUXCNC_TCL_DIR=/home/tom/emc2-dev/tcl
> LINUXCNC_SCRIPT_DIR=
> LINUXCNC_RTLIB_DIR=/home/tom/emc2-dev/rtlib
> LINUXCNC_CONFIG_DIR=
> LINUXCNC_LANG_DIR=/home/tom/emc2-dev/src/objects
> INIVAR=inivar
> HALCMD=halcmd
> LINUXCNC_EMCSH=/usr/bin/wish8.5
> INIFILE=/home/tom/emc2-dev/configs/sim/axis/axis.ini
> PARAMETER_FILE=sim.var
> TASK=milltask
> HALUI=halui
> DISPLAY=axis
> 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
> Starting EMC2 TASK program: milltask
> Starting EMC2 DISPLAY program: axis
> Killing task linuxcncsvr, PID=18283
> Killing task milltask, PID=18316
> Removing HAL_LIB, RTAPI, and Real Time OS modules
> Removing NML shared memory segments
> tom@ubuntu:~/emc2-dev$ 
> 
> Dmesg output is pasted here:
> http://pastebin.com/qFC2epqR
> 
> Thanks,
> Tom
> 
> 
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