Occasional temporary freezes
I'm not sure what would be the right place to post this, but since it *could* be distro specific I am throwing it here. Every now and then I experience a short temporary freeze of my system. It lasts for a few seconds when I can't do anything, not even move a mouse. While it lasts I see my disk LED constantly on and the DVD light turns on as well (despite it not being in use and there not being a CD/DVD in it).
After it comes back to it, everything resumes fine, except that if I'm using beep-media-player it sometimes pauses the music so I have to hit play again.
The thing is, these sort of freezes shouldn't normally happen on this system. In fact it shouldn't happen even on much older systems. The machine really isn't under any significant load.
I'm wondering what could it be? A renegade process? Damaged filesystem? I just hope it's not an indication of any serious hardware problem..