(Please CC me, I am not subscribed to LKML [I have set the Mail-Followup-To header accordingly]). On two of my new machines, with Intel Core Duo T2300 and Core2 Duo E6400 chips respectively, I noticed some weirdness in how many CPUs are present. If the hyper-threading bit is present in the CPU info, should there always be a an extra CPU presented to the system per physical core? Both the Core1 and Core2 chips I have the ht bit set, but present only their two physical cores to the system. No access to the hyper-threading capabilities at all. I also see no configuration options in the BIOS to enable or disable hyper-threading. That is, /proc/cpuinfo and all topology data only shows 2 CPUs present, and that they are not the HT pair. (CONFIG_NR_CPUS=8 is set). (This was originally triggered by somebody else's code that read the CPU flags, saw hyper-threading, and decided there were 2x cpus for each physical core. Said code has already been taken out back and shot repeatedly). -- Robin Hugh Johnson Gentoo Linux Developer E-Mail : [email protected] GnuPG FP : 11AC BA4F 4778 E3F6 E4ED F38E B27B 944E 3488 4E85
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