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--></style></head><body bgcolor="white" lang="EN-US" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal"><a name="_MailEndCompose"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Can either of you verify that the VTK C++ tests work on the system? E.g. ctest –R Mace passes? Just trying to see if this is a general system/VM issue or tied specifically to Java/OpenGL2 interactions.</span></a></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Thanks</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Ken</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Ken Martin PhD</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Chairman & CFO</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Kitware Inc.</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">28 Corporate Drive</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Clifton Park NY 12065</span></p><p class="MsoNormal"><a href="mailto:ken.martin@kitware.com"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">ken.martin@kitware.com</span></a><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">919 869-8871 (w)</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">This communication, including all attachments, contains confidential and legally privileged information, and it is intended only for the use of the addressee. Access to this email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken in reliance on it is prohibited and may be unlawful. If you received this communication in error please notify us immediately and destroy the original message. Thank you.</span></p></div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><div><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"> vtkusers [mailto:<a href="mailto:vtkusers-bounces@vtk.org">vtkusers-bounces@vtk.org</a>] <b>On Behalf Of </b>Jens Schmidt<br><b>Sent:</b> Monday, September 7, 2015 12:53 PM<br><b>To:</b> marcin.krotkiewski; VTK Users<br><b>Subject:</b> Re: [vtkusers] segfault with Opengl2 in 6.3.0.rc2</span></p></div></div><p class="MsoNormal"> </p><p class="MsoNormal" style="margin-bottom:12.0pt">To chime in, the jvm (1.8.60) crashes on debian jessie (virtualbox) when using the opengl2 rendering backend (vtk 6.3.0rc1 and rc2) and the swtComponent. The old OpenGL works fine.<br>When not using virtualbox's 3d accelleration the window wont even open. When activating the 3d accelleration you get a window but as soon as you add some actors and call update it crashes (some of the time).<br>Also the jvm crashes when running everything on "real" hardware (Intel HD Graphics 4600) instead of a virtual machine. <br>Unfortunately i cannot access the logs right now (vacation) if this still is an issue after, i happily provide any logs you desire :-)<br>Just wanted to let you know, keep up the good work!<br><br><br>i also have segfaults with the opengl2 backend on linux (debian jessie) running on virtualbox.<br><br></p><div><p class="MsoNormal">Am 05.09.2015 um 21:32 schrieb marcin.krotkiewski:</p></div><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal">I keep getting segfaults when using vtk.sample.VTKCanvas with OpenGL2 backend in 6.3.0.rc2. This does not happen with 6.2.0 + OpenGL2, nor with the standard OpenGL backend. I use ubuntu 14.04 and compile with gcc 4.9.2 and jdk1.8.0_60. <br><br>On my laptop, the segfaults are 100 reproducible with mesa library - some lines from glxinfo: <br><br><br>OpenGL renderer string: Mesa DRI Intel(R) Haswell Mobile <br>OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.1.3 <br>OpenGL core profile shading language version string: 3.30 <br><br><br>When I use the high performance card (fglrx drivers, Radeon HD 8790M) the segfaults sometimes happen, sometimes not. Lines from glxinfo: <br><br><br>OpenGL vendor string: Advanced Micro Devices, Inc. <br>OpenGL renderer string: AMD Radeon HD 8790M <br>OpenGL core profile version string: 4.3.13374 Core Profile Context 15.20.1013 <br>OpenGL core profile shading language version string: 4.40 <br><br><br>I have attached a simplified java code based on VTKCanvas - In my experience this one segfaults always, both with mesa, and with Radeon drivers. I get the following line before vtk dies: <br><br><br>ERROR: In /home/angainor/bergverk/vtk/VTK-6.3.0.rc2/Rendering/OpenGL2/vtkOpenGLRenderWindow.cxx, line 412 <br>vtkXOpenGLRenderWindow (0x7f110429aa90): GLEW could not be initialized. <br><br><br>And this is the top of the stack reported by the dying Java VM <br><br><br>R11=0x00007fcbd8a79840: <offset 0x72840> in /usr/lib/fglrx/libGL.so.1 at 0x00007fcbd8a07000 <br><br>Stack: [0x00007fcbb94e4000,0x00007fcbb95e5000], sp=0x00007fcbb95e1148, free space=1012k <br>Java frames: (J=compiled Java code, j=interpreted, Vv=VM code) <br>j vtk.vtkRenderWindow.Render_9()V+0 <br>j vtk.vtkRenderWindow.Render()V+1 <br>j vtk.vtkPanel.Render()V+164 <br>j vtk.vtkPanel.paint(Ljava/awt/Graphics;)V+1 <br><br>[...] <br><br><br>It seems that this is a problem specific to 6.3.0.rc2 with OpenGL2. I could not reproduce it for 6.2.0, nor when using OpenGL backend. Do you know any reason why this could happen? I will be happy to provide more information and help to solve this. <br><br>Cheers, <br><br>Marcin <br><br><br><br><br></p><pre>_______________________________________________</pre><pre>Powered by <a href="http://www.kitware.com">www.kitware.com</a></pre><pre> </pre><pre>Visit other Kitware open-source projects at <a href="http://www.kitware.com/opensource/opensource.html">http://www.kitware.com/opensource/opensource.html</a></pre><pre> </pre><pre>Please keep messages on-topic and check the VTK FAQ at: <a href="http://www.vtk.org/Wiki/VTK_FAQ">http://www.vtk.org/Wiki/VTK_FAQ</a></pre><pre> </pre><pre>Search the list archives at: <a href="http://markmail.org/search/?q=vtkusers">http://markmail.org/search/?q=vtkusers</a></pre><pre> </pre><pre>Follow this link to subscribe/unsubscribe:</pre><pre><a href="http://public.kitware.com/mailman/listinfo/vtkusers">http://public.kitware.com/mailman/listinfo/vtkusers</a></pre></blockquote><p class="MsoNormal"> </p></div></body></html>