Date: Tue, 09 Dec 2003 13:44:30 -0500 (EST) From: John Baldwin <jhb@FreeBSD.org> To: John Stockdale <jstockdale@stanford.edu> Cc: freebsd-smp@freebsd.org Subject: RE: IGNORE: Logical CPU's not being picked up on dual 2.0 Xeon system. Message-ID: <XFMail.20031209134430.jhb@FreeBSD.org> In-Reply-To: <1C3AC0B6-2A00-11D8-A35F-000393A6EB58@stanford.edu>
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On 09-Dec-2003 John Stockdale wrote: > Realized that hyperthreading is working, but only 1 physical cpu is > being picked up. > > Gonna troubleshoot this one and get back to the list if I can't figure > it out. > > Sorry for the errant email Nope. APIC Id's are 0 and 6. Logical CPUs are contiguous, i.e. 0 and 1 and 6 and 7. If you aren't using ACPI and you have enabled HTT in your BIOS, you now need to use 'options MPTABLE_FORCE_HTT' to enumerate logical CPUs when not using ACPI. >> CPU: Intel(R) Xeon(TM) CPU 2.00GHz (1999.44-MHz 686-class CPU) >> Origin = "GenuineIntel" Id = 0xf27 Stepping = 7 >> >> Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PG >> E,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> >> Hyperthreading: 2 logical CPUs >> real memory = 1073217536 (1023 MB) >> avail memory = 1033175040 (985 MB) >> MPTable: < PLACER CRB > >> FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs >> cpu0 (BSP): APIC ID: 0 >> cpu1 (AP): APIC ID: 6 -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/
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