On Sun, 30 Nov 2008 23:29:14 +1300
Dale Ogilvie [off-list ref] wrote:

after having some issues with networking on Fedora 10 I was given your
name to provide some data to. See this fedora forum
post :http://forums.fedoraforum.org/showthread.php?t=205609

This line from your dmesg caught my eye.

Clocksource tsc unstable (delta = -249993826 ns)

Does booting with clocksource=hpet change anything?  What about the
others in 
/sys/devices/system/clocksource/clocksource0/available_clocksource

Jay