#184 Segmentation fault in Linux virtualbox

[ProzacR]

bash-4.3$ pymol
 PyMOL(TM) Molecular Graphics System, Version 1.8.4.0.
 Copyright (c) Schrodinger, LLC.
 All Rights Reserved.

    Created by Warren L. DeLano, Ph.D. 

    PyMOL is user-supported open-source software.  Although some versions
    are freely available, PyMOL is not in the public domain.

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    software by purchasing a PyMOL Maintenance and/or Support subscription.

    More information can be found at "http://www.pymol.org".

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 Detected OpenGL version 2.0 or greater. Shaders available.
 Detected GLSL version 1.30.
 OpenGL graphics engine:
  GL_VENDOR:   VMware, Inc.
  GL_RENDERER: Gallium 0.4 on llvmpipe (LLVM 3.8, 256 bits)
  GL_VERSION:  3.0 Mesa 11.2.2
PyMOL>fetch 1ABE
 please wait ...
 ExecutiveLoad-Detail: Detected mmCIF
 CmdLoad: "./1abe.cif" loaded as "1ABE".
/usr/bin/pymol: line 5:  4156 Segmentation fault      python /usr/lib64/python2.7/site-packages/pymol/__init__.py $*

Fell free to ask for more info.

[Alois Schloegl]

Under certain circumstancies, (usually connecting to a debian server through ssh with X-tunneling), I observe als this behavior, and reported this on debian/pymol bug tracker
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=783653

When trying to figure out the cause for this, it seems the crash occurs when 256 bits are used in GL_RENDERER

GL_RENDERER: Gallium 0.4 on llvmpipe (LLVM 3.8, 256 bits)

When 128 bits is reported, it seems to work fine. I tried several Debian servers (jessie, jessie-backports, stretch), and several clients (Debian stretch-backports, MobaXterm, OSX with XQuartz.

[Carlos Familia]

I also observe this problem on virtualbox with debian as guest system.
It does not depend if it is the pymol provided by deb system or compiled from source.