This bug has been reported on Ubuntu Launchpad as: https://bugs.launchpad.net/bugs/603288 xfce4-panel crashed with SIGSEGV in _XIDHandler() DistroRelease: Ubuntu 10.04 Package: xfce4-panel 4.6.3-1ubuntu2 Uname: Linux 2.6.32-23-generic i686 Architecture: i386 Disassembly: => 0xdbf: Cannot access memory at address 0xdbf SegvAnalysis: Segfault happened at: 0xdbf: Cannot access memory at address 0xdbf PC (0x00000dbf) not located in a known VMA region (needed executable region)! SegvReason: executing NULL VMA Signal: 11 SourcePackage: xfce4-panel StacktraceTop: ?? () _XPrivSyncFunction (dpy=0x8b7c618) XCreatePixmap (dpy=0x8b7c618, d=25222181, _cairo_xlib_surface_create_similar_with_format ( _cairo_xlib_surface_clone_similar ( Stacktrace available: http://launchpadlibrarian.net/51586351/Stacktrace.txt XsessionErrors.txt log file available: http://launchpadlibrarian.net/51585894/XsessionErrors.txt
I think this is something in gtk/gdk/cairo, nit in the panel, see i don't see a relation in the stacktrace, only that is it called from the panel mainloop; where gtk does all it's drawing too. Please reopen if this still happens with the >= 4.7 panel.