Description of problem:
The glxgears would hang up after running more than 30 minutes.


Version-Release number of selected component (if applicable):
RHEL4.5 32bit
RHEL4.5 64bit
RHEL4.6 32bit
RHEL 5 32bit
RHEL 5 64bit
RHEL 5.1 32bit


How reproducible:


Steps to Reproduce:
1. Install the RHEL 4.5 32bit in Munich (Ultra 20 M2 )or Stuttgart(Ultra 40 M2).
2. Install the Chipset and VGA Card driver by Supplemental CD
3. Run the glxears.
4 Wait more than 30 minutes, the glxears's GUI would hang up but the frames 
still can be displayed normally.
  
Actual results:
The glxgears would hang up after running more than 30 minutes.


Expected results:
The glxgears will work normal until it stop by manual.


Additional info:
There is a float number “angle” in the glxgears source representing the angle 
for turning the gears. Each frame 2.0 is added to it. 
Adding 2.0 to a big enough floating-point variant is a noop due to limited 
precision. Thus the gears stop turning. 

Actually you see the gear stop turning, but from source code side, it works 
continually, yes, it still a bug of glxgears.
The gears picture frame what you see is “still” because “angle” (float 
number) can’t add 2.0 after it “overflows” or exceed the limit precision.