Messages in this thread | | | Date | Wed, 3 Dec 2003 11:56:31 -0800 | From | Mike Fedyk <> | Subject | Re: HT apparently not detected properly on 2.4.23 |
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On Wed, Dec 03, 2003 at 08:40:51PM +0100, Andre Tomt wrote: > On Wed, 2003-12-03 at 19:46, Ethan Weinstein wrote: > > Hi, > > > > With 2.4.22, my Supermicro X5DPL-iGM-O (E7501 chipset) with 2 > > xeons@2.4ghz and hypertherading enabled shows 4 cpu's in > > /proc/cpuinfo|proc/interrupts, with: > > CONFIG_ACPI=y > > CONFIG_ACPI_HT_ONLY=y > > The same config with 2.4.23 only shows 2 cpus, even with: > > CONFIG_NR_CPUS=4 > > This may be the known problem about CONFIG_NR_CPU's not working properly > in all cases. Try up'ing it to 32.
Depending on the logical addressing of your processors, CONFIG_NR_CPUS=8 may work in this case too.
Some processors/motherboards logically address the CPUs other that 0-3 if there are 4 processors.
Currently CONFIG_NR_CPUS needs to be big enough to hold the largest logical processor number. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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