Crash in swscale on CentOS6

[ahuillet]

Hello,

using the latest RPMs on CentOS 6, Paraview 3.12 x86_64 makes the server segfault in swscale.

The segfault happens as soon as the client connects; or as soon as Paraview is started, if the client was already connected.

[Antoine Martin]

Confirmed with CentOS 6.4 fully up to date and xpra 0.8.8:

ERROR: In /home/kitware/Dashboards/MyTests/ParaView-master/VTK/Rendering/vtkXOpenGLRenderWindow.cxx, line 404
vtkXOpenGLRenderWindow (0x1f0be50): Could not find a decent visual
ERROR: In /home/kitware/Dashboards/MyTests/ParaView-master/VTK/Rendering/vtkXOpenGLRenderWindow.cxx, line 404
vtkXOpenGLRenderWindow (0x1f0be50): Could not find a decent visual
ERROR: In /home/kitware/Dashboards/MyTests/ParaView-master/VTK/Rendering/vtkXOpenGLRenderWindow.cxx, line 609
vtkXOpenGLRenderWindow (0x1f0be50): GLX not found.  Aborting.

Aborted

It needs the GL extension which is not available with Xvfb.

I then tried it with Xdummy and that works fine, so either use the Xorg xdummy packages in the repo or upgrade to CentOS 6.4 (RPM packages for 6.4 should have Xdummy enabled by default starting with 0.9.0).

[Antoine Martin]

New details I was not aware of:

• it needs to run with vglrun (what graphics card is used on display :0 ??)
• it's a regression (since when? what version?)

[Antoine Martin]

The problem apparently fixed itself, not sure how/why...

[migration script]

this ticket has been moved to: ​https://github.com/Xpra-org/xpra/issues/285