[BUG][acpi-cpufreq/userspace-governor]Frequency does not change

["Dhaval Giani" <dhaval.giani@gmail.com>]

Hey there,

Looks like I spoke too soon. I tried changing the frequency in cpu1
and then it all fell apart. I got a ridiculously high value. To test
it, I rebooted my system, and this is what happened.

[root@localhost dhaval]# cd /sys/devices/system/cpu/cpu0/cpufreq/
[root@localhost cpufreq]# cat *
0
1862000
1862000
1596000
1862000 1596000
ondemand userspace
1862000
acpi-cpufreq
userspace
1862000
1596000
1862000
cat: stats: Is a directory
[root@localhost cpufreq]# echo 1596000 > scaling_setspeed
[root@localhost cpufreq]# cat *
0
1862000
1862000
1596000
1862000 1596000
ondemand userspace
0
acpi-cpufreq
userspace
1862000
1596000
0
cat: stats: Is a directory
[root@localhost cpufreq]# cd ../../cpu1/cpufreq/
[root@localhost cpufreq]# cat *
1
1862000
1862000
1596000
1862000 1596000
ondemand userspace
1862000
acpi-cpufreq
userspace
1862000
1596000
1862000
cat: stats: Is a directory
[root@localhost cpufreq]# echo 1596000 > scaling_setspeed
[root@localhost cpufreq]# cat *
1
1596000
1862000
1596000
1862000 1596000
ondemand userspace
4294967295
acpi-cpufreq
userspace
1862000
1596000
4294967295
cat: stats: Is a directory
[root@localhost cpufreq]# cd ../../cpu1/cpufreq
[root@localhost cpufreq]# cat *
1
1596000
1862000
1596000
1862000 1596000
ondemand userspace
4294967295
acpi-cpufreq
userspace
1862000
1596000
4294967295
cat: stats: Is a directory


The dmesg is as follows,
acpi-cpufreq: get_cur_freq_on_cpu (0)
acpi-cpufreq: get_cur_val = 100665128
acpi-cpufreq: cur freq = 1862000
userspace: cpufreq_set for cpu 0, freq 1596000 kHz
cpufreq-core: target for CPU 0: 1596000 kHz, relation 0
acpi-cpufreq: acpi_cpufreq_target 1596000 (0)
freq-table: request for target 1596000 kHz (relation: 0) for cpu 0
freq-table: target is 1 (1596000 kHz, 9)
cpufreq-core: notification 0 of frequency transition to 0 kHz
userspace: saving cpu_cur_freq of cpu 0 to be 0 kHz
cpufreq-core: notification 1 of frequency transition to 0 kHz
userspace: saving cpu_cur_freq of cpu 0 to be 0 kHz
acpi-cpufreq: get_cur_freq_on_cpu (0)
printk: 2 messages suppressed.
acpi-cpufreq: get_cur_freq_on_cpu (1)
acpi-cpufreq: get_cur_val = 100665128
acpi-cpufreq: cur freq = 1862000
userspace: cpufreq_set for cpu 1, freq 1596000 kHz
cpufreq-core: target for CPU 1: 1596000 kHz, relation 0
acpi-cpufreq: acpi_cpufreq_target 1596000 (1)
freq-table: request for target 1596000 kHz (relation: 0) for cpu 1
freq-table: target is 1 (1596000 kHz, 9)
cpufreq-core: notification 0 of frequency transition to 4294967295 kHz
printk: 6 messages suppressed.
acpi-cpufreq: get_cur_freq_on_cpu (0)
acpi-cpufreq: get_cur_val = 100664859
acpi-cpufreq: cur freq = 1596000
acpi-cpufreq: get_cur_freq_on_cpu (1)
acpi-cpufreq: get_cur_val = 100664859
acpi-cpufreq: cur freq = 1596000
[root@localhost cpufreq]#

This is on the 2.6.19-rc5-mm2 with the patch at
http://lkml.org/lkml/2006/11/15/302 applied.

Thanks and regards
Dhaval Giani
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