On Fri, 31 Dec 2004 at 12:00pm, Tom Browder <tbrowder@xxxxxxx> wrote > I have continued to be plagued by a kernel hang or lockup since FC 2 on AMD > dual cpus with ATI radeon 7500. I am currently running FC 3 with the latset > released kernel (681). > > Is there any hope for the problem by using one of the test kernels? What motherboard are you using? There are lots of us throwing out our Tyan S2466 based systems as fast as we can. After a while they start exhibiting the behavior you're seeing (hard locks (no OOPS available)) at random times that are very hard to diagnose/resolve. See the beowulf list archives for a fair bit of discussion of this. -- Joshua Baker-LePain Department of Biomedical Engineering Duke University