CPU Frequency Throttling not working on Xeon EM64T
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Debian |
Fix Released
|
Unknown
|
|||
linux (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Bug Description
Fresh Edubuntu Gutsy 64bit installation on a dual Xeon 3.2 EM64T machine, the intended kernel module acpi_cpufreq is present, but can not be loaded.
$ uname -a
Linux lanmaster 2.6.22-14-generic #1 SMP Sun Oct 14 21:45:15 GMT 2007 x86_64 GNU/Linux
$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.20GHz
stepping : 1
cpu MHz : 3200.210
cache size : 1024 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 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 syscall nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips : 6404.88
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) Xeon(TM) CPU 3.20GHz
stepping : 1
cpu MHz : 3200.210
cache size : 1024 KB
physical id : 3
siblings : 2
core id : 0
cpu cores : 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 syscall nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips : 6400.81
clflush size : 64
cache_alignment : 128
address sizes : 36 bits physical, 48 bits virtual
power management:
processor : 2
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.20GHz
stepping : 1
cpu MHz : 3200.210
cache size : 1024 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 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 syscall nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips : 6400.78
clflush size : 64
cache_alignment : 128
address sizes : 36 bits physical, 48 bits virtual
power management:
processor : 3
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.20GHz
stepping : 1
cpu MHz : 3200.210
cache size : 1024 KB
physical id : 3
siblings : 2
core id : 0
cpu cores : 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 syscall nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips : 6400.85
clflush size : 64
cache_alignment : 128
address sizes : 36 bits physical, 48 bits virtual
power management:
$ dmesg | grep -i throttling
[ 55.718656] ACPI: Processor [CPU0] (supports 8 throttling states)
[ 55.718683] ACPI: Processor [CPU1] (supports 8 throttling states)
[ 55.718704] ACPI: Processor [CPU2] (supports 8 throttling states)
[ 55.718725] ACPI: Processor [CPU3] (supports 8 throttling states)
$ lsmod | grep -i cpufreqcpufreq_
cpufreq_
cpufreq_userspace 6048 0
cpufreq_powersave 3072 0
cpufreq_ondemand 10896 0
freq_table 6464 2 cpufreq_
$ sudo modprobe acpi_cpufreq
FATAL: Error inserting acpi_cpufreq (/lib/modules/
$ sudo cpufreq-selector -g ondemand
No cpufreq support
Changed in debian: | |
status: | New → Incomplete |
Changed in debian: | |
status: | Incomplete → Fix Released |
Same problem here:brex@ ubuntu- box:~$ uname -a
Linux ubuntu-box 2.6.22-14-generic #1 SMP Sun Oct 14 21:45:15 GMT 2007 x86_64 GNU/Linux
brex@ubuntu-box:~$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 Duo CPU T7500 @ 2.20GHz
stepping : 11
cpu MHz : 2194.742
cache size : 4096 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 10
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 syscall nx lm constant_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips : 4393.78
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 Duo CPU T7500 @ 2.20GHz
stepping : 11
cpu MHz : 2194.742
cache size : 4096 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 10
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 syscall nx lm constant_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips : 4389.63
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
brex@ubuntu-box:~$ lsmod | grep -i cpufreq_stats stats,cpufreq_ ondemand 2.6.22- 14-generic/ kernel/ arch/x86_ 64/kernel/ cpufreq/ acpi-cpufreq. ko): No such device
cpufreq_stats 8160 0
freq_table 6464 2 cpufreq_
brex@ubuntu-box:~$ sudo modprobe acpi_cpufreq
FATAL: Error inserting acpi_cpufreq (/lib/modules/
brex@ubuntu-box:~$
Any clues??