id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host 6780,VB 3.20 kernel crash with 2D/3D acceleration,jss,,"Ubuntu Lucid 10.04 fully updated host, where VB 3.18 was working fine, with the Windows XP guest machine in question, with 2D and 3D acceleration enabled. Upgraded to VB 3.20 and the guest vanishes with no warning at a reproducible point of operation of one guest application. It also happens with other applications but was not investigated further. It was operating on seamless mode, if that matters. The system log message is: kernel: [ 6329.181389] VirtualBox[9043]: segfault at 4 ip 08d1f289 sp bf914f00 error 4 in libQtOpenGL.so.4.6.2[8d02000+c5000] If 2D and 3D acceleration are unchecked, the problem disappears. I suspect this could be related to situation of ticket #6747 but could find the opportunity yet to test DxDiag. ",defect,closed,other,VirtualBox 3.2.0,fixed,,,Windows,Linux