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Date:      Thu, 08 Mar 2001 15:05:24 -0800
From:      Kent Stewart <kstewart@urx.com>
To:        Bert Driehuis <driehuis@playbeing.org>
Cc:        stable@FreeBSD.ORG
Subject:   Re: ABIT KT7 and temp monitoring
Message-ID:  <3AA81034.B73A84CF@urx.com>
References:  <Pine.BSI.4.21.0103082310460.980-100000@c1111.nl.compuware.com>

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Bert Driehuis wrote:
> 
> On Thu, 8 Mar 2001, Lyndon Nerenberg wrote:
> 
> > > healthd works fine on systems that use supported monitoring chips.
> > > Unfortunately the number of chips that healthd supports is pretty small
> > > compared to monitoring tools on other platforms, e.g. Motherboard Monitor on
> > > Windows or LM Sensors on Linux.
> >
> > Which says to me that the interface should be abstracted out.
> > Something like a device driver that presents a /dev device that
> > you can read or ioctl to get the information in a somewhat chip-
> > independent fashion.
> 
> I've toyed with this idea (actually, I've implemented it for BSD/OS 4.x
> using the sysctl interface). However, there are two problems with it
> that made me drop the project for the time being.
> 
> First of all, putting it in the kernel means a rigid interface, not to
> mention the associated bloat and near-constant kernel updates as new
> chips get glued to motherboards (and wired in new an innovative ways).
> 
> Second, the user needs to define what sensor means what anyway, because
> of the ease of miswiring, and because a broken fan is indistinguisable
> from a nonexistant fan, which means a config file must be used anyway.
> 
> Finally, none of the monitoring chips I've seen can be detected
> reliably. The ones attached to the ISA bus can be checked for sanity
> with some confidence (the W83781D has a one byte id), but scanning the
> I2C bus can easily lock a motherboard (I think that that's what's
> causing my Intel board to act up when the ichsmb driver gets added to
> the kernel).

I also have a KT7. When you talked about the system hanging on the
Temp and Fans message, I tried building a new release with the smbus
stuff included. I don't see a hang but I also don't see any smb
devices in the dmesg.

Kent

> 
> Cheers,
> 
>                                 -- Bert
> --
> Bert Driehuis -- driehuis@playbeing.org -- +31-20-3116119
> If the only tool you've got is an axe, every problem looks like fun!
> 
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-- 
Kent Stewart
Richland, WA

mailto:kbstew99@hotmail.com
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