Re: Driver SFC: Possible bug in LM87 temperature XFP detection code

[Jesper Dangaard Brouer <hawk@diku.dk>]

On Tue, 28 Apr 2009, Ben Hutchings wrote:

> I wrote:
>> However, I
>> think your time might be better spent in fixing the air flow in the
>> computer before the board is permanently damaged.
>
> It may also be worth checking that the sensors are actually reading
> correctly.  You can read them using the "sensors" command from the
> lm_sensors package or by running:
>
>    grep . /sys/class/net/eth88/device/i2c-adapter:*/*-002e/temp*_input
>
> Divide the numbers by 1000 to get temperatures in degrees celsius.

/sys/class/net/eth88/device/i2c-adapter:i2c-1/1-002e/temp1_input:61000
/sys/class/net/eth88/device/i2c-adapter:i2c-1/1-002e/temp2_input:70000

Guess the temperature is fairly high... I can touch it with a finger 
without getting burned.  I also have a 10GbE Sun Neptune (niu) in the 
machine, if I touch the heatsink on that I burn my finger, so that is even 
hotter...


> The "internal" temperature sensor (temp1_input) is in the LM87, which is
> placed at the corner of the board away from the bracket and the edge
> connector.
>
> The "external" temperature sensor (temp2_input) is in the SFC4000.

I though this was read from the XFP.  I was hoping the NIC supported 
reading i2c stuff from the XFP.  Does it support that? (Robert Olsson 
wanted to play with this stuff)


Cheers,
   Jesper Brouer

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MSc. Master of Computer Science
Dept. of Computer Science, University of Copenhagen
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