Chris Knadle wrote:
> On Sunday 06 January 2008, Adam wrote:
> > Also, I found out that the CPU includes some register that actually
> > measures the on-die core temp, separately from the two sensors connected
> > to the IT8718. Apparently lm_sensors can use the 'coretemp' module to
> > read this on supported Intel CPUs, but that module seems to be broken on
> > my system:
> >
> > [EMAIL PROTECTED] ~]$ sudo modprobe coretemp
> > FATAL: Error inserting coretemp
> > (/lib/modules/2.6.22.15-desktop-1.uc1mdv/kernel/drivers/hwmon/coretemp.ko):
> > Unknown symbol in module, or unknown parameter (see dmesg)
>
If you want to get this working through the module, the first thing to do
would be to take a look at the dmesg output. If it's an unknown parameter,
take a look on Google and then on the source to see what the values should be.
If it's a missing symbol, you can search through the modules for the symbol
with something like:
find /lib/modules/2.6.22.15-desktop-1.uc1mdv -type f | \
(while read file;
do nm $file | grep 'T missing_symbol' && echo $file;
done)
... and try to manually load the broken dependency.
I'm not at all familiar with the hardware monitoring stuff, but if you get it
working I'd appreciate it if you could post your results because I'm trying to
track down some elusive hardware issues of my own ;-).
> My best guess is that modprobe can't determine which of the lower-level
> device modules are necessary to load, or it's also possible that modprobe
> knows which one to load but the kernel as delivered by Mandriva didn't
> include the required module.
> There's two ways to read "dmesg"; first there's 'dmesg' the command, but
> you can also look at /var/log/dmesg as a file.
>
> > Is there any other way to read this value? I know it's possible, as
> > I've found Win programs that can read it, and it's separate from the
> > sensors -- the sensors are usually around 24C and 34C, and core temp is
> > around 50C. I did manage to find C source for a version of the
> > 'coretemp' module, but I couldn't understand it.
>
> There's a key thing to understand: anything that's hardware related has to
> do with the kernel, and more specifically a kernel driver. So in the case
> where it works in Windows, that means that for whatever reason the Windows
> kernel driver works, but not the Linux kernel driver with the given Mandriva
> kernel.
> Each of the distributions tweaks the kernel source for their own reasons,
> and they each tweak + patch it differently. That's not a bad thing; usually
> the distributions list the patches they applied and what they were for, or
> what options they removed. But does mean that the kernel you're running by
> default is not "vanilla".
>
> If you want to fix your 'coretemp' issue, you don't need the source for
> just the 'coretemp' module, you need the kernel source so that you can
> recompile either the whole thing, or just the unerlying dependencies that may
> be missing. You can either get the kernel source from Mandriva which has
> their patches applied and options removed, or you can get the "vanilla"
> kernel source from www.kernel.org. If you get the source from kernel.org, I
> recommend the "full" download of 2.6.23.12, the latest "stable" kernel.
>
> After expanding the kernel source, if you want a look, there's
> documentation on hardware monitoring in /Documentation/hwmon. The "it87"
> text file covers the IT8718F. There are even two downloads for compressed
> PDFs that list which each pin of the IT8718F is for, though you probably
> don't need it.
>
> > I'm not having any problems with voltages or overheating, just curious
> > about these things. Thanks very much for anyone who can point me in the
> > right direction!
>
> Unfortunately it's unclear which direction is the right one; essentially
> the right direction is "forward". ;-)
>
> -- Chris
>
> --
>
> Chris Knadle
> [EMAIL PROTECTED]
>
=============================================================================
michaelMuller = [EMAIL PROTECTED] | http://www.mindhog.net/~mmuller
-----------------------------------------------------------------------------
If you are not willing to control your own mind, there are plenty of other
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