HT enabled, but not visible anywhere

[Master-Guy]

Hello all,

I am working with a friend of me on getting VMware to use HT technology.
But before we did this, we wanted to recompile the kernel.

By now, we got the kernel recompiled, vmware installed and 2 virtual servers running.

Now we have a problem with the HT:

According to our .config file, all things having something to do with HT are enabled (as far as we can find them)
However, if we use the top command, it only shows 1 CPU. The same counts for cat /proc/cpuinfo. (Yes: cat /proc/cpuinfo does show the ht flag, and yes: we confirmed that the CPU can handle HT).

Does anyone have any more ideas what this could be?

As far as the topics we could find trough google, we have tried everything possible..

[likwid]

Are you running the smp kernel? (uname -r)

[Master-Guy]

ns23170:~# uname -r
2.6.18.3-MG-v3


As I said: it's a custom compiled kernel

[likwid]

It seems like you have not loaded the SMP kernel. All HT machines I have seen show the two 'cpus,' but the kernel must be SMP.

[Master-Guy]

The name you are seeïng is a name I can set manually.. I could also put "2.6.18.3-MG-v3-SMP" there..

also: if you would look at the config, you would see that all SMP configurations are enabled

[bidi]

Even though this guy has no idea what he's talking about, he gives me an idea... have you tried this with a standard kernel? If te same problems occurs there, the issue might be somewhere else.

[Master-Guy]

we tried 2 versions of the host: 2.4.33 and 2.6.18.1

with the 2.4.33 version (default on the host) it appears that
cat /proc/cpuinfo
displays 2 processors, but top still doesnt (no double CPU usage information)

when we boot the 2.6.18.1 version (from the host) it appears with both commands as if there is no 2nd processor.

when we turned it back to my custom it also didn't show up

We tried contacting the host, but had no reply yet.. Was hoping you guys at this forum could help me

[likwid]

No idea what I am talking about? I work in support and linux administration daily, and have been using linux and solaris since childhood.


Do you know how many times I have to ask a question to a customer before they finally say "O, xxx option IS actually turned off." Even though they've said it is on numerous times? And I'm sure your qualifications include running KDE on your desktop system and getting sound to work. :claps:

[Master-Guy]

Please dont go offtopic here.. this is about my HT problem, not your sound problems.

Moderators? Please remove his post and this one.
Thanks in front

[likwid]

Sorry for the sidetrack, first insult I have seen thrown at anybody here on linuxforums.

I am more familiar with redhat's package management, but would it be possible for you to get a stock 2.6 SMP kernel .deb from the debian package suppositories? I would try this, and if the stock one from deb works, diff the .configs.