Re: No amdtemp sysctls, acpi errors, AMD Ryzen 5 2400G

You know what, I wonder if you're running into the CUR_TEMP_RANGE_SEL?
 I.e., sometimes the CPU chooses to report on a range from 0-225C and
sometimes -49C-206C.  I think someone else's 2990WX did the same
thing.  I guess that patch never landed?  102°C - 49°C is the very
reasonable 53°C.

Yeah, sigh, it never landed:  https://reviews.freebsd.org/D16855

Ok I'll go ahead and commit that too.

Thanks,
Conrad
On Tue, Nov 13, 2018 at 8:38 PM Conrad Meyer <cem_at_freebsd.org> wrote:
>
> On Tue, Nov 13, 2018 at 8:29 PM Rebecca Cran <rebecca_at_bluestop.org> wrote:
> >
> > On Tuesday, 13 November 2018 21:17:59 MST Conrad Meyer wrote:
> >
> > > Maybe it should be -54 instead of +54?  183-(54*2) is the somewhat
> > > plausible 75?C (still pretty warm even for load).  How good is your
> > > cooling solution?
> >
> > D'oh, of course it's -54 instead of +54 (For some reason I presumed a positive
> > offset would be *subtracted*)!   I have an all-in-one liquid thermaltake
> > cooler installed, and under Windows it reports reaching 67C when running flat
> > out, which doesn't seem bad.
>
> Yeah, 67C seems totally great at load.
>
> > > (The references I can find with a quick search suggest TR 29xx should
> > > also be -27? rather than -54?C, but they may be mistaken.  183-54-27
> > > is still 102?C ? extremely hot!)
> >
> > That's why I thought 54 was more likely! My 2990WX has 4 units for 32 cores
> > instead of 2 units and 16 cores for other models, so I guessed that perhaps I
> > should double the 27 value other people had said should be used.
>
> Hm, the Linux folks still use -27 for the 2990WX as well as all of the
> other threadripper models.  I'm not sure what's right.  I wish I had
> access to the Ryzen 2 register docs, but I don't.
>
> Best,
> Conrad