Re: Linux 2.6.25

From: Jiri Slaby
Date: Fri Apr 18 2008 - 16:25:22 EST


On 04/18/2008 09:18 PM, Bart Van Assche wrote:
On Fri, Apr 18, 2008 at 5:37 PM, Matthew <jackdachef@xxxxxxxxx> wrote:
I've another "regression" to report for 2.6.25:

it's concerning much higher temperatures being read out by the
"coretemp" kernel-module in comparison to 2.6.24* series

e.g. where temperatures were around 40-47°C they are now constantly
jumping around 55-70°C (even in idle !)

The coretemp kernel module reports 25°C on my PC when idle, and 34°C
after having performed some computations (lmbench2). This looks
normal. This test has been performed with a vanilla 2.6.25 kernel and
a Core 2 Duo E6750 CPU (Asus motherboard). The 2.6.22 and 2.6.24
kernels report an incorrect temperature on the same system however
(10°C). So there is either an issue with the patches that have been
applied to your kernel or the behavior of the coretemp module for the
6600 and E6750 CPU's is different. Can you repeat the test with a
vanilla 2.6.25 kernel ?

(Added Rudolf Marek in CC, the coretemp author.)

I see a change on my rrd graphs on Mar 5th 11:30 AM (from 25 to 40 average centigrades). This is when I booted 2.6.25-rc3-mm1 instead of 2.6.25-rc2-mm1, according to logs. [I have no idea whether the values were correct before or are correct now.]

I might bisect it, if needed.
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