Fatal Errors Installing on Parallels.

I'm trying to install the 2.7.3/Wheezy image on a Parallels virtual machine. My only interest is in running simulations. No hardware is connected to the Mac running Parallels, and I'll never attempt to do that--there's a PC running Wheezy natively out in the garage.

So on the Mac latency problems just don't matter, but they give me fatal errors on starting up LinuxCNC. The log complains of "unexpected realtime delay" & LinuxCNC aborts.

Is it possible to configure LinuxCNC to avoid this problem? If the fix is easier using Ubuntu rather than Debian, I can do that.

I think the problem is something else. Can you look in the dmesg log?

An unexpected delay does not cause LinuxCNC to exit. I do lots of LinuxCNC work in VMs on my Mac, albeit with VMWare Fusion rather than parallels, and it all works just fine.

Which configs are you trying to use? Are you running the sim configs?

I've attached the error log I get when I try to start 2.7.3 directly, so that I can select a sim config.

Thank you for the questions--I tried a number of things and get the same kind of result.

I will be grateful for any insights you have.

This line indicates that the user interface program is crashing, but doesn't indicate much about why:

/usr/bin/linuxcnc: line 857: 4245 Segmentation fault $EMCDISPLAY -ini "$INIFILE" $EMCDISPLAYARGS $EXTRA_ARGS

check whether other OpenGL software works in your virtual machine (glxgears is a good choice), OR try a different UI such as tklinuxcnc that doesn't use OpenGL for display.

jepler wrote: This line indicates that the user interface program is crashing, but doesn't indicate much about why:

/usr/bin/linuxcnc: line 857: 4245 Segmentation fault $EMCDISPLAY -ini "$INIFILE" $EMCDISPLAYARGS $EXTRA_ARGS

check whether other OpenGL software works in your virtual machine (glxgears is a good choice), OR try a different UI such as tklinuxcnc that doesn't use OpenGL for display.

glxgears runs without error.

tklinuxcnc with the servo-sim config also seems to work.

I'd like to use axis so that I've got a visual simulation.

ned7 wrote: I'd like to use axis so that I've got a visual simulation.

You may need to do something with the display compatibility settings in Parallels (assuming there are some, I haven't ever used it).

Alternatively software opengl might be a solution. (with the caveat that this is a very old Wiki page and might be very outdated)
wiki.linuxcnc.org/cgi-bin/wiki.pl?Troubl...oftware_based_OpenGL