On Mon, Nov 11, 2013 at 10:56 AM, Andy <[email protected]> wrote:

> On Fri 08 Nov 2013 18:28:38 GMT, Chris Cappuccio wrote:
>
>> Andy [[email protected]] wrote:
>>
>>> Hi Chris,
>>>
>>> Yea that makes sense, as you say its pretty trivial and a divide by zero
>>> check is a common coding practice...
>>>
>>> I will try again as I only tried 'Max Performance' but it might mean
>>> until
>>> this is fixed we cannot enable 'Turbo+' at all.
>>>
>>> With the GIANT lock in OpenBSD I was really hoping that Turbo+ would
>>> work as
>>> that gives me a few hundred extra MHz on top of the default 3.5GHz Ivy
>>> clock
>>> in a single core etc.
>>>
>>> Please let me know if a commit for this is done and I will test using a
>>> snapshot :)
>>>
>>> Thanks for your time, Andy.
>>>
>>>
>> My patch is almost certainly not the right solution. But it will
>> possibly allow you to boot in turbo mode.
>>
>> So, it might be interesting to try it, or to try a version
>> with the patch (to get a turbo mode dmesg for phessler) and also
>> some extra info like:
>>
>> printf("high: %d low: %d cpuspeed %d\n",high,low,cpuspeed);
>>
>> in the est_init() function after high and low are calculated
>> (of course).
>>
>> Perhaps the way that the est_fqlist is built is faulty
>> for new CPUs, dmesg output from this might show this.
>>
>> For some reason I thought I had a Xeon 55xx but it's actually
>> an E5-26xx, and not a v2 either. And doesn't show this
>> problem as far as I can tell. Maybe I need to test it more!
>>
>
> Ok, I'll have a go at writing the fix and test it, but expect some pretty
> newbie questions..
>
> It's been a /very/ long time since I've written any C and I've never tried
> to compile OpenBSD.
>
> I'll read http://www.openbsd.org/faq/faq5.html next weekend..
>

and man release .......

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