Package: linux-2.6 Version: 3.1.8-2 Severity: normal Dear Debian folks,
this is the same report as report #490108 [1] which has been closed
already. I am submitting a new report instead of reopening #490108,
since this request only involves amd64 which was not fixed.
$ grep -i clockm /boot/config-3.1.0-1-*
/boot/config-3.1.0-1-686-pae:CONFIG_X86_P4_CLOCKMOD=m
/boot/config-3.1.0-1-amd64:# CONFIG_X86_P4_CLOCKMOD is not set
Frequency scaling does not work with the following Intel Pentium 4
processor when using the Linux kernel for amd64.
$ more /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Pentium(R) 4 CPU 3.00GHz
stepping : 9
cpu MHz : 2999.275
cache size : 1024 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
lm constant_tsc pebs bts nopl pni dtes64 monitor ds_cpl cid cx16 xtpr lahf_lm
bogomips : 5998.55
clflush size : 64
cache_alignment : 128
address sizes : 36 bits physical, 48 bits virtual
power management:
processor : 1
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Pentium(R) 4 CPU 3.00GHz
stepping : 9
cpu MHz : 2999.275
cache size : 1024 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
apicid : 1
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
lm constant_tsc pebs bts nopl pni dtes64 monitor ds_cpl cid cx16 xtpr lahf_lm
bogomips : 5999.73
clflush size : 64
cache_alignment : 128
address sizes : 36 bits physical, 48 bits virtual
power management:
The reason is, that this processor does not have speedstep technology
and therefore neither acpi-cpufreq nor speedstep-centrino modules can be
used for frequency scaling.
To get something similar module p4_clockmod provides frequency
throttling [1], but is currently not included in the package for amd64.
It would be great if you could build that module and distribute it in
the package for amd64.
Thanks,
Paul
[1] http://bugs.debian.org/490108
-- Package-specific info:
** Version:
Linux version 3.1.0-1-amd64 (Debian 3.1.8-2) (b...@decadent.org.uk) (gcc
version 4.6.2 (Debian 4.6.2-11) ) #1 SMP Tue Jan 10 06:25:07 UTC 2012
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