[LinuxBIOS] dual core disable?
Lu, Yinghai
yinghai.lu at amd.com
Mon Nov 7 21:51:29 CET 2005
That's OK, the kernel problem....
It assumes all nbcfg 54 bit is set.....with out check it.
So it could treat Node1/core0 as Node0/Core1....
YH
-----Original Message-----
From: linuxbios-bounces at openbios.org
[mailto:linuxbios-bounces at openbios.org] On Behalf Of Greg Johnson
Sent: Monday, November 07, 2005 12:22 PM
To: linuxbios at openbios.org
Subject: [LinuxBIOS] dual core disable?
Disabling dual core on our s2891 boards with Opteron 270's doesn't seem
to work properly. When I boot with dual core disabled, I am getting two
cores on one socket enabled and none on the other socket. Here's
/proc/cpuinfo with dual core disabled:
p5:~# cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 33
model name : unknown
stepping : 2
cpu MHz : 2010.318
cache size : 1024 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext
fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy
bogomips : 4029.78
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp
processor : 1
vendor_id : AuthenticAMD
cpu family : 15
model : 33
model name : unknown
stepping : 2
cpu MHz : 2010.318
cache size : 1024 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext
fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy
bogomips : 4020.90
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp
It also performs like it's using both cores on one socket. Any
thoughts?
Thanks,
Greg
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