Re: smp falls back to up mode on quad core

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Julian Echave wrote:
Hi,
I'm running Centos 5.1 on an Intel Quad 2 Core with four Q6600 processors. Despite Centos 5 supporting multiple cores (SPM), it doesn't seem to work for me:
1) a dmesg shows that only one processor is seen:
     "SPM alternatives: switching to UP code", etc.
2) file /proc/cpuinfo shows only one processor
3) top with option 1 (to toggle between seeing all processors or an average) shows only 1 processor. I've googled this, and other people have found this kind of trouble, but I was not able to find any solutions.


it might help diagnose this if you paste the output of 'dmesg' at least up to that "SMP Alternatives" message and maybe a couple more lines after it...




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