Wrong number of cpus detected/reported

Hi,

first of all please apologize me because I didn't subscribe the list. I really even don't know if this list is the appropriate place to have my question discussed but I didn't found any better one.

I installed a RedHat 7.1 system on a 4 way 1.4 Gz Compaq DL580 server with kernel 2.4.2 and everything goes right. Because of some other prerequisite needs I had to upgrade the kernel to 2.4.9-34.

After the upgrade the system is reporting that the machine has 8 cpu instead of 4. I have been looking for some kind of information on the Internet (www.google.com/linux) about that but I didn't have success.

Does anybody can tell me if I will face some major problem and why the system is detecting (or only reporting) the wrong number of cpus ? There is anything that I can do to have my system detecting the right number of cpus ?

Attached there are a tar.gz file containing :

nohup.out => standard output from make bzImage
modules.out => standard output from make modules
modules.err => standard error from make modules
cpuinfo => /proc/cpuinfo

The kernel was compiled using the kernel.....-enterprise config from /usr/src/linux-2.4/configs (smp=yes, highmem=64M)

Thanks in advance.

This is correct. The machine has 8 logical CPUs implemented inside 4
physical CPUs. For more information, search Intel's web pages about 'hyperthreading'.

DS

But if the kernel doesn't have HT support, then it won't necessarily balance loads properly.