Running GNOME in jhbuild session eat all CPU

[Luca Ferretti <elle uca libero it>]

Sorry to write here, but I've no idea how to investigate this issue that
only recently is happening in my jhbuild session.

I've GNOME trunk installed with jhbuild under /opt/gnome2. When I log in
using the jhbuild session, the CPU average load is 98%, or better, the X
process uses for itself 98% CPU ; when I log in using the "distro"
session (ubuntu 8.10), everything goes fine (typical X process CPU usage
should be lower than 15%).

I've also tried logging in using the "vendor" session, start Xephir
as :1 and run `jhbuild shell && DISPLAY=:1 gnome-session`. The result is
the same: the Xephyt process CPU usage is 98%.

Now, someone has the same issue? And how can I try to investigate it?
The only evidence that something is going wrong is the X process CPU
usage :-|

Cheers, Luca.