Dell Poweredge 2600 SMP
Any ideas why Linux 2.4.19, 2.4.20-rc1 and -rc1-ac1 with megaraid driver from http://www.domsch.com/linux/megaraid/ detects four CPUs, when olny two are on board ?
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Daniel Podlejski <[email protected]>
Quoted 3 lines · Daniel Podlejski
Any ideas why Linux 2.4.19, 2.4.20-rc1 and -rc1-ac1 with megaraid driver from http://www.domsch.com/linux/megaraid/ detects four CPUs, when olny two are on board ?
Because
1) it has two hyperthreaded Xeon processors, each of which contains two logical CPUs, and
2) you didn't disable hyperthreading in the BIOS.
Sigh. This is becoming a FAQ...