Messages in this thread | | | Date | Sat, 16 Nov 2002 14:26:32 +0100 (CET) | From | Steffen Persvold <> | Subject | Xeon with HyperThreading and linux-2.4.20-rc2 |
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Hi all,
I've two boxes with Dual Xeons 1.8 GHz and HT option enabled in BIOS. When I boot 2.4.20-rc2 with default arguments the kernel detects 4 processors and also reports 4 processors in /proc/cpuinfo wiht the "ht" feature.
However, if I boot with the "noht" option (wich I believed turned off HT and therefore only two processors should be available), the kernel still detects 4 processors, _but_ now the "ht" feature in /proc/cpuinfo is not there. Is this the intention of the "noht" option ? If so, are there any options available to turn off HT support in the kernel completely, so that I don't have to go into the BIOS to turn it off ?
If you want to I can provide the dmesg output and .config.
I think this issue is not just related to 2.4.20-rc2, but earlier kernels aswell.
Regards, -- Steffen Persvold | Scali AS mailto:sp@scali.com | http://www.scali.com Tel: (+47) 2262 8950 | Olaf Helsets vei 6 Fax: (+47) 2262 8951 | N0621 Oslo, NORWAY
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