Fireball V90, EMC2 crashes on load

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08 Nov 2013 07:50 #40651 by GarbageTheClown
Just got a Fireball V90 and an optiplex G110 to run it (733 mhz p3, 512 ram). Latency tests are decent (peak was 14000).
I downloaded the config file on the probotix website and attempted to load EMC2 using it. I see the UI for about a second and then it crashes with this.

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/realtime-2.6.32-122-rtai/modules/linuxcnc
LINUXCNC_CONFIG_DIR=
LINUXCNC_LANG_DIR=/usr/share/linuxcnc/tcl/msgs
INIVAR=inivar
HALCMD=halcmd
LINUXCNC_EMCSH=/usr/bin/wish8.5
LINUXCNC - 2.5.0
Machine configuration directory is '/home/cncmachine/linuxcnc/configs/v90'
Machine configuration file is 'v90.ini'
INIFILE=/home/cncmachine/linuxcnc/configs/v90/v90.ini
PARAMETER_FILE=emc.var
TASK=milltask
HALUI=
DISPLAY=axis
Starting LinuxCNC...
Starting LinuxCNC server program: linuxcncsvr
Loading Real Time OS, RTAPI, and HAL_LIB modules
Starting LinuxCNC IO program: io
Starting TASK program: milltask
Starting DISPLAY program: axis
Shutting down and cleaning up LinuxCNC...
Killing task linuxcncsvr, PID=1450
Killing task milltask, PID=1507
Removing HAL_LIB, RTAPI, and Real Time OS modules
Removing NML shared memory segments
Cleanup done

Debug file information:
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
/usr/bin/linuxcnc: line 687: 1508 Segmentation fault $EMCDISPLAY -ini "$INIFILE" $EMCDISPLAYARGS $EXTRA_ARGS
1450
PID TTY STAT TIME COMMAND
1507
PID TTY STAT TIME COMMAND
Stopping realtime threads
Unloading hal components

Kernel message information:
[ 78.228984] I-pipe: Domain RTAI registered.
[ 78.229014] RTAI[hal]: <3.8.1> mounted over IPIPE-NOTHREADS 2.6-03.
[ 78.229024] RTAI[hal]: compiled with gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) .
[ 78.229044] RTAI[hal]: mounted (IPIPE-NOTHREADS, IMMEDIATE (INTERNAL IRQs DISPATCHED), ISOL_CPUS_MASK: 0).
[ 78.229053] PIPELINE layers:
[ 78.229065] e109ce20 9ac15d93 RTAI 200
[ 78.229074] c085cb20 0 Linux 100
[ 78.333805] RTAI[malloc]: global heap size = 2097152 bytes, <BSD>.
[ 78.334534] RTAI[sched]: IMMEDIATE, MP, USER/KERNEL SPACE: <with RTAI OWN KTASKs>, kstacks pool size = 524288 bytes.
[ 78.334555] RTAI[sched]: hard timer type/freq = APIC/8306320(Hz); default timing: periodic; linear timed lists.
[ 78.334568] RTAI[sched]: Linux timer freq = 250 (Hz), TimeBase freq = 731009000 hz.
[ 78.334578] RTAI[sched]: timer setup = 999 ns, resched latency = 2943 ns.
[ 78.340504] RTAI[usi]: enabled.
[ 78.661641] RTAI[math]: loaded.
[ 78.993625] config string '0x378 out '
[ 85.231171] __ratelimit: 9 callbacks suppressed
[ 85.231192] axis[1508]: segfault at 0 ip (null) sp bfa1b34c error 4 in libfontconfig.so.1.4.4[110000+2e000]
[ 90.318108] RTAI[math]: unloaded.
[ 90.592212] SCHED releases registered named ALIEN RTGLBH
[ 90.609162] RTAI[malloc]: unloaded.
[ 90.708213] RTAI[sched]: unloaded (forced hard/soft/hard transitions: traps 0, syscalls 0).
[ 90.736611] I-pipe: Domain RTAI unregistered.
[ 90.736648] RTAI[hal]: unmounted.

Searching through google netted me one other post that was related (segmentation fault), but it didn't seem to be of use. I'm new to CNC and new to linux so I'm not sure what to do next.

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08 Nov 2013 16:39 #40664 by ArcEye
Did it run with a sim config?

Try changing the DISPLAY = axis in your ini file to tkemc, mini or whatever and see if that starts

The problem seems liable to be in Axis

regards

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10 Nov 2013 00:56 #40690 by GarbageTheClown
I didn't get around to trying that. It turns out this is an OpenGL error.

I had to install software based OpenGL

wiki.linuxcnc.org/cgi-bin/wiki.pl?Troubl...oftware_based_OpenGL

Works like a charm now.

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10 Nov 2013 02:47 #40692 by ArcEye

The problem seems liable to be in Axis

I didn't get around to trying that. It turns out this is an OpenGL error.

I had to install software based OpenGL


Same difference, Axis is very heavy on openGL, largely due to the gremlin plotting of the GCode

Glad you got it sorted

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