Here is interesting info that was sent to the gnat-gps bug, #297980:
--- Begin Message ---Package: gnat-gps Version: 2.1.0-3The problem does not occur with udev enabled (at least for udev 0.053-1, kernel 2.6.8-2-386): F4 and "Build" works properly. However, the problem (X11 crash at F4) comes back if udev is disabeled again (using, for example, "UDEV_DISABLED=yes" as boot parameter). -- Peter Keller.
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