WaitForSomething(): select: Invalid argument

[Grant]

xorg crashed on my Gentoo system with the following in Xorg.0.log.old
as I was posting something on Tumblr.  Should I file a bug?

Fatal server error:
[  2018.895] WaitForSomething(): select: Invalid argument
[  2018.895]
[  2018.895] (EE)
Please consult the The X.Org Foundation support
         at http://wiki.x.org
 for help.
[  2018.895] (EE) Please also check the log file at
"/var/log/Xorg.0.log" for additional information.
[  2018.895] (EE)
[  2018.905] (II) evdev: Power Button: Close
[  2018.905] (II) UnloadModule: "evdev"
[  2018.920] (II) evdev: Video Bus: Close
[  2018.920] (II) UnloadModule: "evdev"
[  2018.930] (II) evdev: Power Button: Close
[  2018.930] (II) UnloadModule: "evdev"
[  2018.941] (II) evdev: Sleep Button: Close
[  2018.941] (II) UnloadModule: "evdev"
[  2018.951] (II) evdev: AT Translated Set 2 keyboard: Close
[  2018.951] (II) UnloadModule: "evdev"
[  2018.976] (II) UnloadModule: "synaptics"
[  2018.976] (II) AIGLX: Suspending AIGLX clients for VT switch
[  2018.998] Server terminated with error (1). Closing log file.

- Grant