On Sat, Mar 13, 2004 at 09:44:34AM -0800, Guolin Cheng wrote: > It is quite strange that my FC-1 Box died mysteriously several times a week. now it died again. I can ping it from other host, and nmap it without issues, but when I try to ssh to it, or access it by means of nfs, I got no response. > > The machine box is a HP workstation xw4100, 2x4G CPU, 4G memory, 4x250GB SATA drives(two connected by means of Intel ICH5 on mothboard, 2 by means of Promise RAID S150 TX4), the kernel is upgraded 2.4.22-1-ntpl-2174smp. Sounds like the FC1 SMP kernel problem: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=109962 https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=109497 So what can you do about this? Several workarounds, use FC1 but: 1. Don't run the SMP kernel. Use kernel-2.4.22-1.2174.nptl instead. If you have a single processor box, you will lose hyper-threading. Probably not what you want. 2. Build your own 2.4.24 kernel from kernel.org. I have not tried this but several reports on the bugzillas say this works for them. You will lose the RH/FC enhancements to the kernel (nptl). This may not be an issue for you. 3. Use the RH9 kernel. This is still being patched for security problems, but that won't last for long. 4. Use the RH EL kernel. I installed: kernel-smp-2.4.21-9.0.1.EL kernel-smp-unsupported-2.4.21-9.0.1.EL from: mirror.physics.ncsu.edu:/pub/whitebox/3.0/en/updates/i686 This has been working well for me. Except for this SMP kernel problem, FC1 is a great distro for servers and workstations. I don't think that the SMP kernel problem is going to get fixed however. -- Norman Gaywood, Systems Administrator School of Mathematics, Statistics and Computer Science University of New England, Armidale, NSW 2351, Australia norm@xxxxxxxxxxxxxxxxx Phone: +61 (0)2 6773 2412 http://turing.une.edu.au/~norm Fax: +61 (0)2 6773 3312 Please avoid sending me Word or PowerPoint attachments. See http://www.fsf.org/philosophy/no-word-attachments.html