Comment 7 for bug 1097286

Hi CaptainPlanet,

Every thing works fine! Gdb freezes the process when a segfault happens instead of killing it like it happens without gdb.
"kill" will kill the process and "quit" will kill the process and quit gdb cleanly.

Notable in your case is that the crash does not happen in the midi code but when rendering a GL widget.

Thread 1 (Thread 0xb7fd6740 (LWP 3933)):
#0 0x00f8197b in ?? () from /usr/lib/i386-linux-gnu/libQtOpenGL.so.4
#1 0x00f81a5f in qt_qgl_paint_engine() ()
   from /usr/lib/i386-linux-gnu/libQtOpenGL.so.4
#2 0x00f81d04 in QGLWidget::paintEngine() const ()
   from /usr/lib/i386-linux-gnu/libQtOpenGL.so.4
#3 0x00809203 in QWidgetPrivate::repaint_sys(QRegion const&) ()

So it looks like you have an combined issue with Midi and OpenGL.
What is your graphic card and driver version?

Please try again with disable Waveforms and Spinnys.
Plead post the output of:
glxinfo | head

You use as striped version of Mixxx without debug info. So the backtrack is not that significant.
#13 0x08367763 in ?? ()

You may compile Mixxx from source to produce a new back trace with debug Infos .
bzr checkout lp:mixxx/1.11
http://mixxx.org/wiki/doku.php/compiling_on_linux

Thank you,

Daniel