xmonad-x86_64-linux: user error (Error in function getWindowAttributes)
thunderbird: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
xterm: fatal IO error 11 (Resource temporarily unavailable) or KillClient on X server ":0"
XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":0"
XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":0"
      after 11 requests (11 known processed) with 0 events remaining.
      after 134 requests (134 known processed) with 0 events remaining.
Gdk-Message: firefox: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.

xterm: fatal IO error 11 (Resource temporarily unavailable) or KillClient on X server ":0"
xterm: fatal IO error 11 (Resource temporarily unavailable) or KillClient on X server ":0"