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FreeCAD / FreeCAD-Bundle

Stand-alone repo to Build and Deploy installable FreeCAD images. Do not open general FreeCAD issues here.
https://freecad.org
GNU Lesser General Public License v2.1
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Crashing when used over SSH #120

Closed remidemers closed 1 month ago

remidemers commented 2 years ago

Issue 0004755 is still present. It appears when started from a remote terminal over SSH. When started from a local terminal the issue do not appear. I experienced it with two images:

How to reproduce: Install Debian 11.3 with only SSH and base utilities on computer №1 login... su apt install i3 apt install firefox exit hostname -I

Note the computer №1 local IP address.

mkdir bin cd bin firefox

With firefox, download the FreeCAD appimage and move it to ~/bin ln -s FreeCAD_weekly-builds-29085-2022-06-10-conda-Linux-x86_64-py39.AppImage freecad ./freecad

You should see the FreeCAD working properly. Close FreeCAD and go to computer №2 Computer №2 is a linux Mint 20.3 with i3 as user interface. It it able to run FreeCAD without problem but some slowness. On computer №2, open a gnome-terminal and enter the commands:

ssh userpc1@computer1_IP -Y // userpc1 and computer1 to be the replaced with actual names export LIBGL_ALWAYS_INDIRECT=1 ./freecad

Result: I can see the FreeCAD splash screen with the nice drawing picture and modules loading text appears as expected normally for a few seconds and the it crashes. This is the output on the terminal:

userpc1@computer1_IP:~/bin$ ./freecad
FreeCAD 0.20, Libs: 0.20R29085 (Git)
© Juergen Riegel, Werner Mayer, Yorik van Havre and others 2001-2022
FreeCAD is free and open-source software licensed under the terms of LGPL2+ license.
FreeCAD wouldn't be possible without FreeCAD community.
  #####                 ####  ###   ####  
  #                    #      # #   #   # 
  #     ##  #### ####  #     #   #  #   # 
  ####  # # #  # #  #  #     #####  #   # 
  #     #   #### ####  #    #     # #   # 
  #     #   #    #     #    #     # #   #  ##  ##  ##
  #     #   #### ####   ### #     # ####   ##  ##  ##

/tmp/.mount_freecaW7LatP/AppRun: line 42:  8427 Aborted                 ${MAIN} "$@"

Please ask me if I can help with more information or testing. Thanks a lot.

luzpaz commented 2 years ago

Any relation to https://github.com/FreeCAD/FreeCAD/issues/5592 ?

remidemers commented 2 years ago

Any relation to FreeCAD/FreeCAD#5592 ?

I re-tested by calling the appimage directly. Same result.

luzpaz commented 2 years ago

@remidemers please help test possible fix in https://github.com/FreeCAD/FreeCAD/pull/7034

adrianinsaval commented 2 years ago

how have you setup your X server in the client machine?

adrianinsaval commented 2 years ago

Issue 0004755 is still present

this is confusing, what are you referring to? https://tracker.freecadweb.org/view.php?id=0004755 this doesn't seem related at all and on github 4755 is a PR removing py2 code

remidemers commented 2 years ago

Issue 0004755 is still present

this is confusing, what are you referring to? https://tracker.freecadweb.org/view.php?id=0004755 this doesn't seem related at all and on github 4755 is a PR removing py2 code

Yes, it shows by the error message that it fails at the same code line: /tmp/.mount_FreeCAMuoQyh/AppRun: line 41: 354130 Segmentation fault ${MAIN} "$@"

remidemers commented 2 years ago

how have you setup your X server in the client machine?

I cannot remember in details. I started with a basic Arch and added xorg and many other packages. Can I drop some config files to help?

remidemers commented 2 years ago

Sorry for being inactive a long time. I want to clarify the bug and mention some findings: The computer runs FreeCad perfectly when called from related keyboard and screen. The problem exist only when FreeCad is called from remote computer through SSH. I read somewhere that latest OpenGL API cannot go through X forwarding. It is possible that the problem is there and unsolvable on the FreeCad side. https://stackoverflow.com/questions/53494718/how-can-i-xforwarding-opengl-applications-from-server

adrianinsaval commented 2 years ago

Yes, it shows by the error message that it fails at the same code line: /tmp/.mount_FreeCAMuoQyh/AppRun: line 41: 354130 Segmentation fault MAIN"@"

This error is as generic as it gets, whatever fails in FreeCAD this error would be shown because it's from the script that calls FreeCAD within the appimage https://github.com/FreeCAD/FreeCAD-Bundle/blob/b75c4f81324d75300024017de878e33bc61cf9f4/conda/linux/AppDir/AppRun#L42

I understand why you got confused but these problems are unrelated. My bet is on the problem you posted so it probably can't be fixed on our side. Do you have other opengl apps you can test? Can you test with a native freecad package for your distro?

adrianinsaval commented 1 month ago

no response for 2 years and likely not solvable on our side so I'm closing this issue