>-----Original Message----- >From: linux-acpi-owner@xxxxxxxxxxxxxxx [mailto:linux-acpi- >owner@xxxxxxxxxxxxxxx] On Behalf Of Steve Evans >Sent: Tuesday, May 29, 2007 9:16 AM >To: linux-acpi@xxxxxxxxxxxxxxx >Subject: (Intel Core 2 Duo 2.4gig 4meg cache + Intel S3000AH + Linux) - >ACPI kernel option = 1 core? > >Hey guys > >I've been configuring up a Linux 2.6.21.1 kernel from Linus' trusty >kernel.org. > >I configured it up and built it and noticed that the dual core CPU I was >using is now a single core chip. > >I've spent alittle time on this problem and think I found out how to >enable or disable the single core. My base config is: >- Processor - SMP On >- Processor - SMT/Hyperthreading scheduler On >- Processor - Multicore scheduler On >- Processor - Optimize for any CPU type (ie P4, Core2, i586) or base >system (ie BigSMB/summit or PC-compatible) >- Power management support On >- All other power management pieces turned off >- All other options are set standard by 'make mrproper' > >I compile the kernel with ACPI off and I get 1 cpu/cpu-core. > >I then recompile with just the ACPI turned on (ie havn't turned on >Processor, Fan or any other modules there) and I get to see my second core. > >This server will be well ventilated and will be running multiple VM's. >To guarantee performance I'd like to have ACPI turned off. > >I can also say that this bug seems to be present in 2.6.18 as well. > >So I guess my question is, has this issue been fixed? Or how can I help >to fix it? > Boot option 'acpi=ht' - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
