Re: [PATCH] hwmon/coretemp: Fix a broken error path - microcode update fix

Soeren Sonnenburg
2007-06-21T21:55:50Z

On Thu, 2007-06-21 at 22:57 +0200, Rudolf Marek wrote:
> Hello Soeren,
>
> Sorry for the delay.
>
> I'm ccing all lists maybe some other people are interested. There is known
> errata AE18 which prevents coretemp from working correctly on some mobile Core
> processors (family 6 model e). My driver refuses to load and now thanks to
> soeren will not crash ;) However what to do when no microcode update (no new
> BIOS) is available?
>
> Soeren pointed at some T60, T60p BIOS update and luckily, there is a easy way
> how to extract the microcode update and even convert it into the .txt format as
> microcode update utility (http://www.urbanmyth.org/microcode/) expects.
> Attached scripts generates the mcode.txt file which may be used by the update
> utility. Please can you give a try?

great! it works:

sensors excerpt :

coretemp-isa-0000
Adapter: ISA adapter
temp1: +62°C (high = +100°C)

coretemp-isa-0001
Adapter: ISA adapter
temp1: +64°C (high = +100°C)

> It seems that there is microcode update for CPUID 06E8 version 0x39 just as my
> driver is checking. So if your CPUID is 06e8 too you should get the coretemp
> driver working.

how do I find that out ? I mean sensors seem to work but how do I know
which CPUID+version I have ?

> If so I will post a patch and document the script in documentation directory (or
> at least some general instructions how to do that)
>
> Please tell me your stepping:
> cat /proc/cpuinfo | grep stepping

$ cat /proc/cpuinfo | grep stepping
stepping : 8
stepping : 8

Thank you *very* much!