From: Linus Walleij <linus.walleij@linaro.org>
To: Gabriel C <nix.or.die@gmail.com>
Cc: Guenter Roeck <linux@roeck-us.net>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
linux-hwmon@vger.kernel.org, Jean Delvare <jdelvare@suse.com>,
Bart Van Assche <bvanassche@acm.org>,
Linux Doc Mailing List <linux-doc@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
linux-scsi <linux-scsi@vger.kernel.org>,
"open list:LIBATA SUBSYSTEM (Serial and Parallel ATA drivers)"
<linux-ide@vger.kernel.org>, Chris Healy <cphealy@gmail.com>
Subject: Re: [PATCH v2] hwmon: Driver for temperature sensors on SATA drives
Date: Sun, 12 Jan 2020 13:07:56 +0100 [thread overview]
Message-ID: <CACRpkdayHFmdz4nAMaXR07Hcy=dLLGnnU8PkFhwQKuDTLnvOSw@mail.gmail.com> (raw)
In-Reply-To: <CAEJqkggo3Mou1SykjisyYn+3SGGgNfnKagr=7ZPyw=Y=1MZ55w@mail.gmail.com>
On Sun, Jan 12, 2020 at 1:03 PM Gabriel C <nix.or.die@gmail.com> wrote:
> Am So., 12. Jan. 2020 um 12:22 Uhr schrieb Linus Walleij
> <linus.walleij@linaro.org>:
> >
> > On Sun, Jan 12, 2020 at 12:18 PM Gabriel C <nix.or.die@gmail.com> wrote:
> >
> > > What I've noticed however is the nvme temperature low/high values on
> > > the Sensors X are strange here.
> > (...)
> > > Sensor 1: +27.9°C (low = -273.1°C, high = +65261.8°C)
> > > Sensor 2: +29.9°C (low = -273.1°C, high = +65261.8°C)
> > (...)
> > > Sensor 1: +23.9°C (low = -273.1°C, high = +65261.8°C)
> > > Sensor 2: +25.9°C (low = -273.1°C, high = +65261.8°C)
> >
> > That doesn't look strange to me. It seems like reasonable defaults
> > from the firmware if either it doesn't really log the min/max temperatures
> > or hasn't been through a cycle of updating these yet. Just set both
> > to absolute min/max temperatures possible.
>
> Ok I'll check that.
>
> Do you mean by setting the temperatures to use a lmsensors config?
> Or is there a way to set these with a nvme command?
Not that I know of.
The min/max are the minumum and maximum temperatures the
device has experienced during this power-on cycle.
(If I understood things right!)
If the device firmware doesn't log that, or the firmware hasn't
ran through a log point, it makes sense to report absolute
min/max of the scales.
Yours,
Linus Walleij
next prev parent reply other threads:[~2020-01-12 12:08 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-15 17:45 [PATCH v2 0/1] Summary: hwmon driver for temperature sensors on SATA drives Guenter Roeck
2019-12-15 17:45 ` [PATCH v2] hwmon: Driver " Guenter Roeck
2019-12-19 0:15 ` Martin K. Petersen
2019-12-19 0:32 ` Guenter Roeck
2020-01-07 4:10 ` Martin K. Petersen
2020-01-07 13:00 ` Guenter Roeck
2020-01-08 1:29 ` Martin K. Petersen
2020-01-08 15:32 ` Guenter Roeck
2019-12-19 7:37 ` Guenter Roeck
2020-01-01 17:46 ` Guenter Roeck
2020-01-03 3:06 ` Martin K. Petersen
2020-01-08 1:12 ` Martin K. Petersen
2020-01-08 15:33 ` Guenter Roeck
2020-01-11 20:22 ` Guenter Roeck
2020-01-12 11:17 ` Gabriel C
2020-01-12 11:21 ` Linus Walleij
2020-01-12 12:02 ` Gabriel C
2020-01-12 12:07 ` Linus Walleij [this message]
2020-01-12 13:07 ` Guenter Roeck
2020-01-12 13:45 ` Gabriel C
2020-01-12 15:26 ` Guenter Roeck
2020-01-12 18:37 ` Gabriel C
2020-01-12 20:08 ` Guenter Roeck
2020-01-12 22:26 ` Gabriel C
2020-01-14 3:03 ` Martin K. Petersen
2020-01-14 5:20 ` Guenter Roeck
2020-01-16 4:12 ` Martin K. Petersen
2020-01-16 5:09 ` Guenter Roeck
2020-01-16 17:47 ` Guenter Roeck
2020-01-17 1:43 ` Martin K. Petersen
2020-01-17 3:53 ` Guenter Roeck
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