Change the font of xfce4 for terminus It well crash your xfce4-panel and terminator (console application) and probably a bunch of more System Manjaro 0.8.10 x86_64 tested only on Manjaro I dont know if this bug affects xfce4 on all distributions :)
Changing the standard font in xfce4-appearance-settings -> fonts tab to Times crashes 80% of the programs I was running at the time, even xfce panel and console which makes it impossible to change it back using the GUI Had to use Ctrl+Alt+F1 and change vim ~/.config/xfce4/xfconf/xfce-perchannel-xml/xsettings.xml <property name="FontName" type="string" value="Sans 10"/> A normal user would have to reinstall the system. Therefore this shouldn't happen! Please somehow check if a font is known to crash programs or somewhat ... This may be related to cairo-scaled-font.c:459: _cairo_scaled_glyph_page_destroy: Assertion `!scaled_font->cache_frozen' failed. I actually tried to change the font to solve that problem, but I think it could have triggered the problem in every other program as well.
This is certainly not a bug in the panel. In general I'm not sure what this report is abuot.