Well, I hate to admit it but sudo WAS involved. Basically I was experimenting with having windows appear via pygtk, and for a while some could not be gotten rid of, because I hadn't yet connected the destroy signal to the right place. And of course I designed them without a iconify/fullscreen/close bar across the top.
In the process of dealing with these windows, linuxcnc didn't start up as usual and it looked to me (at the time, anyway) that there was a file related to the realtime part of linuxcnc that was hanging around that shouldn't be. That's essentially what led me to mistakenly delete the file in question. Super dumb move, I know.
Anyhow, here's the whole error output:
Code:
Starting LinuxCNC...
Error: could not load module /usr/realtime-3.4-9-rtai-686-pae/modules/rtai_hal.ko: No such file or directory
Realtime system did not load
Shutting down and cleaning up LinuxCNC...
Running HAL shutdown script
RTAPI: ERROR: could not open shared memory (errno=2)
/usr/bin/linuxcnc: line 542: 3630 Segmentation fault $HALCMD -f $SHUTDOWN
RTAPI: ERROR: could not open shared memory (errno=2)
/usr/bin/linuxcnc: line 542: 3636 Segmentation fault $HALCMD stop
RTAPI: ERROR: could not open shared memory (errno=2)
/usr/bin/linuxcnc: line 542: 3637 Segmentation fault $HALCMD unload all
RTAPI: ERROR: could not open shared memory (errno=2)
RTAPI: ERROR: could not open shared memory (errno=2)
RTAPI: ERROR: could not open shared memory (errno=2)
RTAPI: ERROR: could not open shared memory (errno=2)
RTAPI: ERROR: could not open shared memory (errno=2)
RTAPI: ERROR: could not open shared memory (errno=2)
RTAPI: ERROR: could not open shared memory (errno=2)
RTAPI: ERROR: could not open shared memory (errno=2)
RTAPI: ERROR: could not open shared memory (errno=2)
RTAPI: ERROR: could not open shared memory (errno=2)
Error: Module hal_lib is not currently loaded
Error: Module rtapi is not currently loaded
Error: Module rtai_math is not currently loaded
Error: Module rtai_sched is not currently loaded
Error: Module rtai_hal is not currently loaded
LinuxCNC terminated with an error. You can find more information in the log:
/home/pferrick/linuxcnc_debug.txt
and
/home/pferrick/linuxcnc_print.txt
as well as in the output of the shell command 'dmesg' and in the terminal
and here's the contents of linuxcnc_debug.txt:
Code:
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/realtime-3.4-9-rtai-686-pae/modules/linuxcnc
LINUXCNC_CONFIG_DIR=
LINUXCNC_LANG_DIR=/usr/share/linuxcnc/tcl/msgs
INIVAR=inivar
HALCMD=halcmd
LINUXCNC_EMCSH=/usr/bin/wish8.5
INIFILE=/home/pferrick/linuxcnc/configs/PKF/./my_LinuxCNC_machine.ini
PARAMETER_FILE=linuxcnc.var
TASK=milltask
HALUI=halui
DISPLAY=axis
Starting LinuxCNC server program: linuxcncsvr
Loading Real Time OS, RTAPI, and HAL_LIB modules
Killing task linuxcncsvr, PID=3603
Removing HAL_LIB, RTAPI, and Real Time OS modules
Removing NML shared memory segments
and finally, here's the tail end of dmesg:
Code:
[ 74.651549] halcmd[3630]: segfault at 8 ip b77aa9bd sp bfbfbf90 error 6 in liblinuxcnchal.so.0[b77a6000+9000]
[ 74.717476] halcmd[3636]: segfault at 8 ip b77459bd sp bfd930d0 error 6 in liblinuxcnchal.so.0[b7741000+9000]
[ 74.723557] halcmd[3637]: segfault at 8 ip b76dd9bd sp bf9b54d0 error 6 in liblinuxcnchal.so.0[b76d9000+9000]
[ 74.730580] halcmd[3640]: segfault at 8 ip b77719bd sp bfb2c8d0 error 6 in liblinuxcnchal.so.0[b776d000+9000]
[ 74.935867] halcmd[3644]: segfault at 8 ip b779f9bd sp bfa7c0e0 error 6 in liblinuxcnchal.so.0[b779b000+9000]
[ 75.141280] halcmd[3648]: segfault at 8 ip b77259bd sp bfc8ade0 error 6 in liblinuxcnchal.so.0[b7721000+9000]
[ 75.346569] halcmd[3652]: segfault at 8 ip b76fc9bd sp bf94e160 error 6 in liblinuxcnchal.so.0[b76f8000+9000]
[ 75.551936] halcmd[3656]: segfault at 8 ip b76f29bd sp bfaa5640 error 6 in liblinuxcnchal.so.0[b76ee000+9000]
[ 75.757299] halcmd[3660]: segfault at 8 ip b77889bd sp bffb4c20 error 6 in liblinuxcnchal.so.0[b7784000+9000]
[ 75.962538] halcmd[3664]: segfault at 8 ip b76cc9bd sp bfce91d0 error 6 in liblinuxcnchal.so.0[b76c8000+9000]
(everything before this is I believe unrelated to this particular problem...)
Well, I've got my asbestos underwear on so flame away!
Many thanks,
Patrick
