powerd adaptive mode latching

[Andrew Atrens]

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Simon Barner wrote:
> Andrew Atrens wrote:
>> I see the same thing with my T7500 -
>>
>> dev.cpu.0.freq: 300
>> dev.cpu.0.freq_levels: 2201/32000 2200/31000 1925/27125 1650/23250 1600/20000 1400/17500 1200/13000
>> 1050/11375 900/9750 800/10000 700/8750 600/7500 500/6250 400/5000 300/3750
>>
>> This patch to powerd works around the problem -
>>
>>
>> --- powerd.c    2007-11-05 21:33:40.000000000 -0500
>> +++ /usr/src/usr.sbin/powerd/powerd.c   2007-11-05 16:48:49.000000000 -0500
>> @@ -182,6 +182,11 @@
>>                         free(*power);
>>                         return (-1);
>>                 }
>> +               /* kludge to w/around too-close cpu freqs */
>> +               if ((i > 0 && ((*freqs)[i-1]-(*freqs)[i]) < 2)) {
>> +                       (*numfreqs)--;
>> +                       i--;
>> +               }
>>                 p = q + 1;
>>         }
>>
> Please see kern/114722. The patch from the PR works fine with my
> T61 (T7300).
> 
> Funny enough, I contacted re@ to get this into 7.0 only two minutes ago.
> 
> For the archives, the similar bug described in bin/117375 already seems
> to be adressed in RELENG_7.

both pr's are open .. and

releng_7 and head are both at v 1.26 of acpi_perf.c

so, no it's not fixed, *anywhere*.  :)


Cheers,

Andrew.
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