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    SubjectRe: Linux 2.6.25 (coretemp reads high temperatures)
    Date
    On Saturday, 19 April 2008 04:51:48 Len Brown wrote:
    > On Friday 18 April 2008, Matthew wrote:
    > > Hi everyone, hi Linus,
    > >
    > > congratulations on this new great kernel-release :)
    > >
    > > 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 !)

    I just updated from 2.6.24 to 2.6.25
    (I usually follow whole development cycle, but I was very busy, so I skipped 2.6.25 cycle)

    I confirm this.
    I *know* that temperatures reported now are wrong.

    The reason is that bios did report same temperatures as coretemp in 2.6.24,
    moreover some time ago I have run a cpu tool (don't remember its name) on windows
    which similar to coretemp reads from each core directly, sensor data ,
    and I noticed that temperature that bios reports is exactly the average
    temperature of both cores
    (I had to run this on windows - intel haven't released
    drivers for their QST for temperature monitoring from bios - very sad)

    And the driver did say in kernel log that TJMAX is 85C

    Lets at least make a kernel option to override tjmax?

    Best regards,
    Maxim Levitsky
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