Re: starting AMD second core

[Andrew Doran <a%netbsd.org@localhost>]

On Sat, Apr 26, 2008 at 04:24:05PM +0000, arthur wrote:

> I installed the latest NetBSD 4 iso image on my dual core AMD system, and I
> noticed that when running two processor intensive applications, that "top"
> showed them both splitting the CPU time (and not each having 100% of a 
> different
> core).
> 
> dmesg shows the second core "not started" (output below).
> 
> I don't see anything in the motherboard manual that indicates anything needs 
> (or
> can) be done via the bios to enable the second core.  Can someone point me to
> what I need to do to get both cores running?
> 
> thanks.
> 
> cpu0 at mainbus0: apid 0 (boot processor)
> cpu0: AMD Athlon(tm) 64 X2 Dual Core Processor 5000+, 2600.03 MHz
> cpu0: features: ffdbfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
> cpu0: features: ffdbfbff<PGE,MCA,CMOV,PAT,PSE36,MPC,NOX,MMXX,MMX>
> cpu0: features: ffdbfbff<FXSR,SSE,SSE2,B27,HTT,LONG,3DNOW2,3DNOW>
> cpu0: features2: 2001<SSE3>
> cpu0: I-cache 64 KB 64B/line 2-way, D-cache 64 KB 64B/line 2-way
> cpu0: L2 cache 512 KB 64B/line 16-way
> cpu0: ITLB 32 4 KB entries fully associative, 8 4 MB entries fully associative
> cpu0: DTLB 32 4 KB entries fully associative, 8 4 MB entries fully associative
> cpu0: AMD Power Management features: 7f<STC,TM,TTP,VID,FID,TS>
> cpu0: AMD PowerNow! Technology 2600 MHz
> cpu0: available frequencies (Mhz): 1000 1800 2000 2200 2400 2600
> cpu0: calibrating local timer
> cpu0: apic clock running at 199 MHz
> cpu0: 8 page colors
> cpu1 at mainbus0: apid 1 (application processor)
> cpu1: not started

Please try booting a -current kernel. You can get one from ftp.netbsd.org/pub/
NetBSD/NetBSD_daily, I think.

Andrew