Date: Fri, 13 Jun 2014 10:08:57 -0700 From: hiren panchasara <hiren.panchasara@gmail.com> To: Ian Smith <smithi@nimnet.asn.au> Cc: "freebsd-acpi@freebsd.org" <freebsd-acpi@freebsd.org>, Eric Neblock <cen5848@louisiana.edu> Subject: Re: Missing: hw.acpi.thermal.tz%d._HOT Message-ID: <CALCpEUGzi1h=25DLA7xeP%2B_SpfAib-dWeb6Jx45UjKK4xTOJNA@mail.gmail.com> In-Reply-To: <20140614013631.J10629@sola.nimnet.asn.au> References: <1402412054.2426.13.camel@canpc36.cacs.louisiana.edu> <20140611011810.V10629@sola.nimnet.asn.au> <1402414819.17836.2.camel@canpc36.cacs.louisiana.edu> <CALCpEUEFmg4twoiDC1czEAXOanmLbR9DarvRcg9h8o=Xc3dwjg@mail.gmail.com> <20140614013631.J10629@sola.nimnet.asn.au>
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On Fri, Jun 13, 2014 at 9:22 AM, Ian Smith <smithi@nimnet.asn.au> wrote:
> On Thu, 12 Jun 2014 14:28:33 -0700, hiren panchasara wrote:
> > On Tue, Jun 10, 2014 at 8:40 AM, Eric Neblock <cen5848@louisiana.edu> wrote:
> > > On Wed, 2014-06-11 at 01:33 +1000, Ian Smith wrote:
> > >> On Tue, 10 Jun 2014 09:54:14 -0500, Eric Neblock wrote:
> > >> > Hello all,
> > >> > I'm trying to figure out what is the _HOT temperature on my particular
> > >> > processor. I'm running FreeBSD 10 GENERIC on a Sunfire X2200.
> > >> >
> > >> > The processor is an Dual Core AMD Opteron 2218.
> > >> >
> > >> > In the GENERIC kernel, acpi is built in; so, kldload acpi fails. I've
> > >> > also loaded the amdtemp module at boot time to figure out what the
> > >> > current temp of the processor is.
> > >> >
> > >> > With all of that, when performing `sysctl -a` I never seem to be able to
> > >> > pull up the _HOT value.
> > >> >
> > >> > Are there any suggestions on how to be able to view it?
> > >>
> > >> Many thermal zones seen, including some CPUs, don't specify any _HOT
> > >> value, just _PSV and _CRT, which should trigger passive cooling (eg
> > >> clock slowing or throttling) and emergency shutdown, respectively.
> > >>
> > >> What says 'sysctl hw.acpi.thermal' ?
> > >>
> > >> cheers, Ian
> > >
> > > The result is as follows:
> > >
> > > sysctl: Unknown oid 'hw.acpi.thermal' : No such file or directory
> >
> > Similar thing here at home desktop running -CURRENT:
> >
> > CPU: AMD FX(tm)-8350 Eight-Core Processor (4000.24-MHz K8-class CPU)
> > Origin="AuthenticAMD" Id=0x600f20 Family=0x15 Model=0x2 Stepping=0
> >
> > acpi0: <7596MS A7596100> on motherboard
> >
> > Other related bits:
> >
> > # sysctl hw.acpi
> > hw.acpi.supported_sleep_state: S3 S4 S5
> > hw.acpi.power_button_state: S5
> > hw.acpi.sleep_button_state: S3
> > hw.acpi.lid_switch_state: NONE
> > hw.acpi.standby_state: NONE
> > hw.acpi.suspend_state: S3
> > hw.acpi.sleep_delay: 1
> > hw.acpi.s4bios: 0
> > hw.acpi.verbose: 0
> > hw.acpi.disable_on_reboot: 0
> > hw.acpi.handle_reboot: 0
> > hw.acpi.reset_video: 0
> > hw.acpi.cpu.cx_lowest: C8
> > #
> >
> > # sysctl dev.amdtemp
> > dev.amdtemp.0.%desc: AMD CPU On-Die Thermal Sensors
> > dev.amdtemp.0.%driver: amdtemp
> > dev.amdtemp.0.%parent: hostb4
> > dev.amdtemp.0.sensor_offset: 0
> > dev.amdtemp.0.core0.sensor0: 15.3C
> >
> > # sysctl -a dev.cpu | grep temp
> > dev.cpu.0.temperature: 15.2C
> > dev.cpu.1.temperature: 15.2C
> > dev.cpu.2.temperature: 15.2C
> > dev.cpu.3.temperature: 15.2C
> > dev.cpu.4.temperature: 15.2C
> > dev.cpu.5.temperature: 15.2C
> > dev.cpu.6.temperature: 15.2C
> > dev.cpu.7.temperature: 15.2C
> >
> > I am not sure how this ^ relates to what acpi reports under thermal.
>
> Well first, unless you've just turned it on, it's idling and lives in a
> refrigerator or coldroom, those temperatures are at best a third of the
> minimum I'd expect to see reported .. and they wouldn't all be the same.
Oh wait. It gets better :-)
# uptime
9:42AM up 10 days, 9:04, 1 user, load averages: 0.37, 0.29, 0.24
# sysctl -a dev.cpu | grep temp
dev.cpu.0.temperature: 13.6C
dev.cpu.1.temperature: 13.6C
dev.cpu.2.temperature: 13.6C
dev.cpu.3.temperature: 13.6C
dev.cpu.4.temperature: 13.6C
dev.cpu.5.temperature: 13.6C
dev.cpu.6.temperature: 13.6C
dev.cpu.7.temperature: 13.6C
#
I am not sure how correct these numbers are but I've enabled AMD's
Cool'n'Quiet thingi in BIOS.
# sysctl dev.cpu | grep cx_lowest
dev.cpu.0.cx_lowest: C8
dev.cpu.1.cx_lowest: C8
dev.cpu.2.cx_lowest: C8
dev.cpu.3.cx_lowest: C8
dev.cpu.4.cx_lowest: C8
dev.cpu.5.cx_lowest: C8
dev.cpu.6.cx_lowest: C8
dev.cpu.7.cx_lowest: C8
#
>From top:
last pid: 53106; load averages: 0.13, 0.18, 0.19
up 10+09:27:27 10:06:21
88 processes: 1 running, 87 sleeping
CPU: 0.3% user, 0.1% nice, 0.3% system, 0.0% interrupt, 99.2% idle
Mem: 58M Active, 1006M Inact, 14G Wired, 12M Cache, 590M Free
ARC: 8753M Total, 1834M MFU, 4757M MRU, 272K Anon, 210M Header, 1952M Other
Swap: 16G Total, 16G Free
>
> And neither of these are reporting hw.acpi.thermal .. is it because the
> BIOS / ACPI doesn't present thermal zone information?
I'd believe so.
> Or there aren't
> suitable drivers to interpret it? I've no idea, but does seem curious.
>
> Any output from?
> # acpidump -dt | egrep -i 'TZ|thermal'
nothing.
# acpidump -dt | egrep -i 'TZ|thermal'
acpidump: RSDT entry 3 (sig OEMB) is corrupt
Now this ^^ error might also suggest something is wrong.
>
> If so, you might want to put your full ASL up somewhere.
# acpidump -dt | gzip -c9 > amd_fx8350.asl.gz
amd_fx8350.asl.gz is attached.
By the time I collected everything,
# sysctl dev.cpu | grep temp
dev.cpu.0.temperature: 14.0C
dev.cpu.1.temperature: 14.0C
dev.cpu.2.temperature: 14.0C
dev.cpu.3.temperature: 14.0C
dev.cpu.4.temperature: 14.0C
dev.cpu.5.temperature: 14.0C
dev.cpu.6.temperature: 14.0C
dev.cpu.7.temperature: 14.0C
Cheers,
Hiren
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