Date: Thu, 08 Nov 2007 12:50:41 -0500 From: "Andrew Atrens" <atrens@nortel.com> To: Simon Barner <barner@FreeBSD.org> Cc: freebsd-current@FreeBSD.org, Matus Harvan <mharvan@inf.ethz.ch> Subject: Re: powerd adaptive mode latching Message-ID: <47334C71.1010102@nortel.com> In-Reply-To: <20071108132222.GC1674@dose.local.invalid> References: <472E9D0B.5080409@csub.edu> <20071106002940.GB1817@styx.ethz.ch> <472FD321.3010509@nortel.com> <20071108132222.GC1674@dose.local.invalid>
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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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