Bug#384032: More info: not a kernel bug after all
Hi,
I've compared the output from the Fedora 2.6.17 kernel and it shows the
same output as the Debian kernel (on a different dual-core machine):
powernow-k8: Found 4 AMD Athlon 64 / Opteron processors (version 1.60.2)
powernow-k8: 0 : fid 0xe (2200 MHz), vid 0x8 (1350 mV)
powernow-k8: 1 : fid 0xc (2000 MHz), vid 0xa (1300 mV)
powernow-k8: 2 : fid 0xa (1800 MHz), vid 0xc (1250 mV)
cpu_init done, current fid 0xe, vid 0x8
powernow-k8: 0 : fid 0xe (2200 MHz), vid 0x8 (1350 mV)
powernow-k8: 1 : fid 0xc (2000 MHz), vid 0xa (1300 mV)
powernow-k8: 2 : fid 0xa (1800 MHz), vid 0xc (1250 mV)
cpu_init done, current fid 0xe, vid 0x8
It also detects 4 CPU's but only lists the info for 2.
But here the CPU scaling works (see output below).
Fedora uses cpuspeed instead of powernowd. I've copied the cpuspeed
binary from the fedora to the Debian box and when I run cpuspeed, all
the cores get clocked down (as they should).
So I'm going to reassign this bug to powernowd again...
output from /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 33
model name : Dual Core AMD Opteron(tm) Processor 275
stepping : 2
cpu MHz : 1800.000
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 sy
bogomips : 3616.96
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 : Dual Core AMD Opteron(tm) Processor 275
stepping : 2
cpu MHz : 1800.000
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 sy
bogomips : 3616.96
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 : 2
vendor_id : AuthenticAMD
cpu family : 15
model : 33
model name : Dual Core AMD Opteron(tm) Processor 275
stepping : 2
cpu MHz : 2000.000
cache size : 1024 KB
physical id : 1
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 sy
bogomips : 4018.84
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 : 3
vendor_id : AuthenticAMD
cpu family : 15
model : 33
model name : Dual Core AMD Opteron(tm) Processor 275
stepping : 2
cpu MHz : 2000.000
cache size : 1024 KB
physical id : 1
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 sy
bogomips : 4018.84
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
[rtheys@gemini ~]$ dmesg | less
[ You've got mail ]
[rtheys@gemini ~]$ cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 33
model name : Dual Core AMD Opteron(tm) Processor 275
stepping : 2
cpu MHz : 1800.000
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 sy
bogomips : 3616.96
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 : Dual Core AMD Opteron(tm) Processor 275
stepping : 2
cpu MHz : 1800.000
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 sy
bogomips : 3616.96
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 : 2
vendor_id : AuthenticAMD
cpu family : 15
model : 33
model name : Dual Core AMD Opteron(tm) Processor 275
stepping : 2
cpu MHz : 1800.000
cache size : 1024 KB
physical id : 1
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 sy
bogomips : 3616.96
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 : 3
vendor_id : AuthenticAMD
cpu family : 15
model : 33
model name : Dual Core AMD Opteron(tm) Processor 275
stepping : 2
cpu MHz : 1800.000
cache size : 1024 KB
physical id : 1
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 sy
bogomips : 3616.96
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
--
Rik Theys
Systeemgroep
KU Leuven - Dept. ESAT
Kasteelpark Arenberg 10
B-3001 LEUVEN - HEVERLEE
Tel.: +32(0)16/32.11.07
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