Xsun eating a lot of CPU on sun4m

[Samuel Tardieu <sam@debian.org>]

I have two sun4m (Sparc10) running the latest unstable, and Xsun always
takes a lot of CPU while the machine only have X, fvwm with no fancy
feature and a xterm with nothing happening inside (in fact, one of the 
machines is even waiting for a xdm login).

 4989 root      20   0  7144 7144  1744 R       0 43.8 25.2   0:45 cc1
 2128 root      20   0  2372 1628   400 R       0 35.0  5.7  30:37 Xsun
 5003 root      20   0  1068 1068   808 R       0 23.8  3.7   0:01 top
 4998 root      19  19   872  872   440 R N     0  0.4  3.0   0:00 cpp
    1 root       0   0    76    0     0 SW      0  0.0  0.0   0:01 init
    2 root       0   0     0    0     0 SW      0  0.0  0.0   0:05 kflushd
    3 root       0   0     0    0     0 SW      0  0.0  0.0   0:07 kswapd
   12 root       0   0    88   52    28 S       0  0.0  0.1   0:07 update
 1181 root       0   0   268  184   144 S       0  0.0  0.6   0:09 syslogd

Usually (when I have no compilation running), Xsun takes about 90% of
the CPU. No screen saver, nothing... Any idea?

  Sam
-- 
Samuel Tardieu -- sam@debian.org