[FC5] Random lockups and cpuspeed

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I've been doing some reading in the archives about this and have some questions regarding 'cpuspeed'.

1 - Is cpuspeed normally run on desktops as well as laptops?
2- One place tells me throttling isn't supported, another says it is (see below) Which do I believe?

Thanks,
Mike


[root@moe ~]# cat /proc/acpi/processor/CPU0/throttling
<not supported>

[root@moe ~]# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
2200000 1000000

With cpuspeed running:
[root@moe ~]# cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 47
model name      : AMD Athlon(tm) 64 Processor 3500+
stepping        : 2
cpu MHz         : 1000.000
cache size      : 512 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm ts fid vid ttp tm stc
bogomips        : 2014.70

With cpuspeed *not* running:
[root@moe ~]# service cpuspeed stop
Stopping cpuspeed:                                         [  OK  ]
[root@moe ~]# cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 47
model name      : AMD Athlon(tm) 64 Processor 3500+
stepping        : 2
cpu MHz         : 2200.000
cache size      : 512 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm ts fid vid ttp tm stc
bogomips        : 4432.35


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