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Date: Fri, 19 Jan 2018 15:16:09 -0800 (PST)
From: Don Lewis <truckman@FreeBSD.org>
Subject: Re: Ryzen issues on FreeBSD ?
To: Mike Tancsa <mike@sentex.net>
cc: Lucas Holt <luke@foolishgames.com>, owner-freebsd-stable@freebsd.org,
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On 19 Jan, Mike Tancsa wrote:
> On 1/19/2018 3:22 PM, Lucas Holt wrote:
>> I have an Asus Prime X370-pro and a Ryzen 7 1700 that I bought in late
> 
> Thanks! Thats the board I have, but no luck with amdtemp.  Did you have
> to change the source code for it to work ?
> 
> dmidecode shows
> 
>         Manufacturer: ASUSTeK COMPUTER INC.
>         Product Name: PRIME X370-PRO
> 
>         Vendor: American Megatrends Inc.
>         Version: 3402
>         Release Date: 12/11/2017
>         Address: 0xF0000
>         Runtime Size: 64 kB
>         ROM Size: 16 MB
>         Characteristics:
> 
> memory is
> 
>         Type: DDR4
>         Type Detail: Synchronous Unbuffered (Unregistered)
>         Speed: 2133 MT/s
>         Manufacturer: Unknown
>         Serial Number: 192BE196
>         Asset Tag: Not Specified
>         Part Number: CT16G4DFD824A.C16FHD
>         Rank: 2
>         Configured Clock Speed: 1067 MT/s
>         Minimum Voltage: 1.2 V
>         Maximum Voltage: 1.2 V
>         Configured Voltage: 1.2 V
> 
> 
> 
> When I try and load the kld, I get nothing :(
> 
> 0(ms-v1)# kldload amdtemp
> 0(ms-v1)# dmesg | tail -2
> ums0: at uhub0, port 3, addr 1 (disconnected)
> ums0: detached
> 0(ms-v1)#

What FreeBSD version are you running?  It looks like the amdtemp changes
for Ryzen are only in 12.0-CURRENT.   It looks like r323185 and r323195
need to be merged to stable/11.