For Qt 4:4.7.1-0ubuntu12 I've opened bug 727198: https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/727198
Attached you can find the strace and the gdb full backtrace, once installed libqt4-dbg. ** Attachment added: "libqtgui4_traces.7z" https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/725959/+attachment/1878842/+files/libqtgui4_traces.7z -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to qt4-x11 in ubuntu. https://bugs.launchpad.net/bugs/725959 Title: libqt4 4:4.7.1-0ubuntu10 and 11 produce segfault in VirtualBox (libqtgui4) -- kubuntu-bugs mailing list kubuntu-b...@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs