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SubjectRe: [PATCH] 2.6, 2.4, Nforce2, Experimental idle halt workaround instead of apic ack delay.
Ross Dickson wrote:
> On Saturday 14 February 2004 00:41, Ross Dickson wrote:
>
>>On Friday 13 February 2004 21:17, Prakash K. Cheemplavam wrote:
>>
>>>Hi,
>>>
>>>I am just testing this patch with latest 2.6.3-rc2-mm1. It works in that
>>>sense, that my machine doesn't lock up of APIC issue. (If it locks up -
>>>hasn't done yet - then because of something else, I am currently
>>>discssing it in another thread...)
>>>
>>>But it doesn't work in the sense of cooling my machine down. Though
>>>athcool reports disconnect is activated it behaves like it is not, ie,
>>>turning disconnect off makes no difference in temperatures. Your old
>>>tack patch in conjunction with 2.6.2-rc1 (linus) works like a charm, ie
>>>no lock-ups and less temp.
>>>
>>
>>Thanks Prakash for testing it and spotting thermal problem.
>>
>>Here are some temperatures from my machine read from the bios on reboot.
>>I gave it minimal activity for the minutes prior to reboot.
>>
>>Win98, 47C
>>XPHome, 42C
>>Patched Linux 2.4.24 (1000Hz), 40C
>>Patched Linux 2.6.3-rc1-mm1, 53C OUCH!
>>
>>Sorry, I will have to go through my latest patch and see why the temp differs
>>so much between 2.4 and 2.6. I currently use patched 2.4.24 with Suse 8.2 for
>>convenience. When it stopped the lockups on 2.6 I thought the 2.6 was
>>working the same way.
>>
>
>
> Found the problem for 2.6
>
> After fixing it the 2.6 temperature is
> Patched Linux 2.6.3-rc1-mm1, 38C
> Ambient today is 1C cooler also.

Well, I hate to say it, but it seems, it doesn't work, or at least not
so well, (running hot, but stability seems to be there) with 2.6.3-mm2.
Like I had 52°C mostly idle with your patch and APIC just a few moments
ago. Now back to PIC within a few minutes I am back to 45°C...7°C is too
much of a difference for me.

To be honest, I can't remenber how it was with the older kernel and I
haven't tested temp of apic_tack patch with 2.6.3-mm2, but for the
moment I am back to PIC. (My CPU is running at 11x200MHz, 1,7vcore btw.)

Cheers,

Prakash
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