I am running Nagios 1.2 on a Fedora Core 3 and facing the following problem. After about 7 hour uptime the CPU usage jumps to 99.9% and the only thing I can do is to reboot the machine with the good old reset or power switch. I can issue the reboot, shutdown or telinit but nothing happens. Due to high CPU usage the logging stops as well so I cannot see a thing in the log files. I am also running mrtg (2.10.15) and apache (2.0.53). I found a message on a mailing list with the same problem but the sender used Netsaint and RH9 there. There were no any answer for that message
I used Netsaint on RedHat 7.2 earlier and the situation was the same except that the occurance of the failure was quite rare. Does anyone know what happens? I have already tried all of the tips I had found on the web but they did not helped me.
Hardware: xSeries 235 eServer
Kernel: Linux 2.6.12-1.1381_FC3smp
Any help is appriciated!