Chris Kurecka wrote: > Hi, > > I've been running Fedora since the project began (and Red Hat before > it), but all of a sudden for the past month or two, my system has been > freezing. It seems to be more likely to happen if it has recently > happened, so if my PC is on for 6 hours without issue and then > freezes, it might freeze again 30 minutes later. This is on Fedora 7, > and I don't think it happened in the test releases, but can't be > completely sure. > > The main symptom is that everything becomes unresponsive. Both the > mouse and keyboard fail to work (so I can't Ctrl-Alt-Backspace or > Ctrl-Alt-F1, etc.), and the mouse doesn't do anything. Often (but I > don't think it happens every time), the Caps Lock and Scroll Lock > lights start blinking rapidly once the system is frozen. > > I'm running an Athlon 64 X2 3800+ and GeForce 7300GS. I'm using the > regular x86 version of the distro rather than the x86_64 build at the > moment, but I've gone back and forth between them over the years and > don't see why that should be the issue. I first noticed this with the > "nvidia" video driver and compiz, so I disabled compiz. The freezing > persisted, so I then further switched to the main "nv" driver. The > freezing is continuing to occur. > > I found an obscure bug mentioned online that some people have with > AMD's Cool & Quiet (or something like that) for power management, so I > tried disabling that in the BIOS, but that also did not fix things. > > For what it's worth, the issue also happens in Ubuntu 07.04 on a > different partition, though I use that much more rarely. I have the > GNOME System Monitor applet in my panel, and it looks like CPU0 goes > to near 100% when the system is frozen, and CPU1 is maybe 20-50%. The > hard disk light also seems to be blinking rapidly. > > My inclination is to think that it's something related to the kernel, > since it seems to have to do with the CPU spiking, but I have no idea. > I've gotten my PC to freeze when using Firefox, Evolution, Pidgin, or > just Nautilus. It doesn't seem to matter what I'm doing at the time. > I don't think it's a hardware issue, but I can't be sure. > > I would greatly appreciate any help or suggestions. I'm not sure why > this has started all of a sudden. I would think it is more likely related to your hardware. In no particular order.... 1. Check fans and filters. 2. A flaky power supply could be the cause. 3. Memory problem. Run memtest for several hours. You also don't mention if you have the system powered off for a considerable length of time. That would even more point to heat or weakened components.
