NetBSD Problem Report #56505

From www@netbsd.org  Wed Nov 17 16:45:41 2021
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Date: Wed, 17 Nov 2021 16:45:39 +0000 (UTC)
From: jspath55@gmail.com
Reply-To: jspath55@gmail.com
To: gnats-bugs@NetBSD.org
Subject: amdzentemp0: autoconfiguration error: unable to register with sysmon (error=22)
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>Number:         56505
>Category:       port-amd64
>Synopsis:       amdzentemp0: autoconfiguration error: unable to register with sysmon (error=22)
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    port-amd64-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Nov 17 16:50:00 +0000 2021
>Last-Modified:  Wed Nov 17 17:10:01 +0000 2021
>Originator:     Jim Spath
>Release:        NetBSD 9.2
>Organization:
n/a
>Environment:
NetBSD machine.domain 9.2 NetBSD 9.2 (GENERIC) #0: Wed May 12 13:15:55 UTC 2021  mkrepro@mkrepro.NetBSD.org:/usr/src/sys/arch/amd64/compile/GENERIC amd64
>Description:
I have a new ASUS motherboard with a AMD Ryzen 5 5600X 6-Core Processor.
Was looking for environmental sensors such as CPU temperature, and see these messages in dmesg:

[     1.002665] amdsmn0 at pci0 dev 0 function 0: AMD System Management Network
[     1.002665] amdzentemp0 at amdsmn0: AMD CPU Temperature Sensors (Family19h)
[     1.002665] amdzentemp0: autoconfiguration error: unable to register with sysmon (error=22)

The envstat command returns no drivers:

$ envstat
envstat: no drivers registered

>How-To-Repeat:
Happens on boot.
>Fix:
Unknown.

>Audit-Trail:
From: mlelstv@serpens.de (Michael van Elst)
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: port-amd64/56505: amdzentemp0: autoconfiguration error: unable to register with sysmon (error=22)
Date: Wed, 17 Nov 2021 17:09:40 -0000 (UTC)

 jspath55@gmail.com writes:

 >I have a new ASUS motherboard with a AMD Ryzen 5 5600X 6-Core Processor.
 >Was looking for environmental sensors such as CPU temperature, and see these messages in dmesg:

 >[     1.002665] amdsmn0 at pci0 dev 0 function 0: AMD System Management Network
 >[     1.002665] amdzentemp0 at amdsmn0: AMD CPU Temperature Sensors (Family19h)
 >[     1.002665] amdzentemp0: autoconfiguration error: unable to register with sysmon (error=22)


 Ryzen 5 5600X is Family 0x19 (Zen3). The amdzentemp driver in netbsd-9 doesn't know about that
 and tries to attach a device without sensors. That yields the error=22 (EINVAL).

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