I followed the instruction for retrieving the backtrace.
The problem is that, when launched via gdb, the program exit normally, no crash
happen.
The screen saver crash in random manner. How to catch the right moment?
This bug has lot of newer duplicates:
#529131 gnome-screensaver-gl-helper crashed with SIGSEGV in
XF86DRIQueryExtension()
#529173 gnome-screensaver-gl-helper crashed with SIGSEGV in
XF86DRIQueryExtension()
#529418 gnome-screensaver-gl-helper crashed with SIGSEGV in
XF86DRIQueryVersion()
#545257 gnome-screensaver-gl-helper crashed with SIGSEGV in
XF86DRIQueryVersion()
#549792 gnome-screensaver-gl-helper crashed with SIGSEGV in
XF86DRIQueryVersion()
#553952 gnome-screensaver-gl-helper crashed with SIGSEGV in
XF86DRIQueryExtension()
#556788 gnome-screensaver-gl-helper crashed with SIGSEGV in
XF86DRIQueryExtension()
#561105 gnome-screensaver-gl-helper crashed with SIGSEGV in
XF86DRIQueryExtension()
#565454 gnome-screensaver-gl-helper crashed with SIGSEGV in
XF86DRIQueryVersion(). Crashed after starting back up from suspsend.
#565504 gnome-screensaver-gl-helper crashed with SIGSEGV in
XF86DRIQueryExtension()
--
gnome-screensaver-gl-helper crashed with SIGSEGV in XF86DRIQueryExtension()
https://bugs.launchpad.net/bugs/529131
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