Impact of "kernel: Clocksource tsc unstable" on a GUI application

I have this Java GUI application which uses OpenGL and Eclipse RCP + SWT running on a Linux (Fedora 7) machine equipped with Pentium P or Core 2 Duo CPU. It supposed to run and accept user input for months.

After a few weeks of running the whole interface freezes without reason. Mouse is very slow and keyboard stops responding shortly. I have eliminated all possible resource leaks (not disposed graphical objects, too many threads etc). I can see in my log files that my application threads are running slowly for less than one minute but then they开发者_运维问答 recover their normal pace (the thread running the GUI as well).

But the GUI itself remains blocked... In my OS log file I see something like this 'kernel: Clocksource tsc unstable'. Could this be related to my problem?