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List:       netbsd-current-users
Subject:    Re: amdtemp module does not find any sensors on 5.99.55
From:       Paul Goyette <paul () whooppee ! com>
Date:       2011-07-31 13:28:46
Message-ID: Pine.NEB.4.64.1107310614020.17301 () screamer ! whooppee ! com
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Jared McNeill pointed out in a private Email:

 	That's because pchb already claimed the device. You need to
 	drvctl -d pchb<N> for the 'AMD64 Family XX Misc' device before
 	loading the module.

This is indeed the problem.

Unfortunately, these machines seem to have lots of pchb<n> devices. 
(The machine with dual Opteron-6172 has 21 pchb's, my other machines all 
have 6.)

It seems that modularizing the amdtemp driver might not be such a good 
idea unless the driver itself can identify and detach the conflicting 
lower-priority pchb<n> attachment.

As a secondary but related question, would it not make sense for the 
amdtemp driver's modcmd(CMD_INIT) routine to fail if there were no 
devices attached?


On Sat, 30 Jul 2011, Paul Goyette wrote:

> As an added datapoint, amdtemp still attaches and is functional if the driver 
> is built into the kernel, as is the case in the amd64/GENERIC kernel.  It 
> seems to fail only when loaded after autoconfig is done.
>
> I will try to look into it in the next few days...
>
>
> On Sat, 30 Jul 2011, Paul Goyette wrote:
>
>> On Sat, 30 Jul 2011, Martin Husemann wrote:
>> 
>>> On Sat, Jul 30, 2011 at 01:12:34PM -0700, Paul Goyette wrote:
>>>> Nothing in dmesg, nothing in /var/log/messages, and nothing on the
>>>> console.
>>> 
>>> So it does not even attach?
>> 
>> Correct
>> 
>> 
>> -------------------------------------------------------------------------
>> | Paul Goyette     | PGP Key fingerprint:     | E-mail addresses:       |
>> | Customer Service | FA29 0E3B 35AF E8AE 6651 | paul at whooppee.com    |
>> | Network Engineer | 0786 F758 55DE 53BA 7731 | pgoyette at juniper.net |
>> | Kernel Developer |                          | pgoyette at netbsd.org  |
>> -------------------------------------------------------------------------
>> 
>
> -------------------------------------------------------------------------
> | Paul Goyette     | PGP Key fingerprint:     | E-mail addresses:       |
> | Customer Service | FA29 0E3B 35AF E8AE 6651 | paul at whooppee.com    |
> | Network Engineer | 0786 F758 55DE 53BA 7731 | pgoyette at juniper.net |
> | Kernel Developer |                          | pgoyette at netbsd.org  |
> -------------------------------------------------------------------------
>

-------------------------------------------------------------------------
| Paul Goyette     | PGP Key fingerprint:     | E-mail addresses:       |
| Customer Service | FA29 0E3B 35AF E8AE 6651 | paul at whooppee.com    |
| Network Engineer | 0786 F758 55DE 53BA 7731 | pgoyette at juniper.net |
| Kernel Developer |                          | pgoyette at netbsd.org  |
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