From: Olof Johansson <olof@lixom.net>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc-dev@ozlabs.org, Olaf Hering <olh@suse.de>
Subject: Re: copying /sys causes fans to spin up
Date: Mon, 27 Feb 2006 13:33:19 -0800 [thread overview]
Message-ID: <20060227213319.GC4685@pb15.lixom.net> (raw)
In-Reply-To: <1141075795.4809.15.camel@localhost.localdomain>
On Tue, Feb 28, 2006 at 08:29:55AM +1100, Benjamin Herrenschmidt wrote:
> On Mon, 2006-02-27 at 17:09 +0100, Olaf Hering wrote:
> > Ben,
> >
> >
> > some tool copies /sys, and while doing it, the fans start to spin up on
> > my G5. Any idea how to fix it, other than not reading from /sys? Have to
> > find the exact file.
>
> Interesting... it's causing the i2c bus to go nuts... It would be useful
> to find out what file indeed...
For me it's /sys/devices/system/windfarm.0/hd-temp
It also seems that the windfarm module misdetects my system. From dmesg:
PowerMac G5 Thermal control driver 1.2b2
Detected fan controls:
0: PWM fan, id 1, location: BACKSIDE,SYS CTRLR FAN
1: RPM fan, id 2, location: DRIVE BAY
2: PWM fan, id 2, location: SLOT,PCI FAN
3: RPM fan, id 3, location: CPU A INTAKE
4: RPM fan, id 4, location: CPU A EXHAUST
5: RPM fan, id 5, location: CPU B INTAKE
6: RPM fan, id 6, location: CPU B EXHAUST
7: RPM fan, id 1, location: CPU A PUMP
8: RPM fan, id 0, location: CPU B PUMP
....
PowerMac i2c bus pmu 2 registered
PowerMac i2c bus pmu 1 registered
PowerMac i2c bus mac-io 0 registered
PowerMac i2c bus u3 1 registered
Liquid cooling pumps detected, using new algorithm !
windfarm: failed to attach ds1775 hd-temp to i2c
And it for sure is not a liquid cooled model, the 2.0's never were.
(PM7,3)
I think this is a 2.6.16-rc2 with the cpufreq patches, but I seems to
have lost the source tree to verify for sure.
-Olof
next prev parent reply other threads:[~2006-02-27 21:33 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-27 16:09 copying /sys causes fans to spin up Olaf Hering
2006-02-27 16:43 ` Olaf Hering
2006-02-27 21:29 ` Benjamin Herrenschmidt
2006-02-27 21:33 ` Olof Johansson [this message]
2006-02-27 21:35 ` Olof Johansson
2006-02-27 21:34 ` Olaf Hering
2006-02-27 21:36 ` Olaf Hering
2006-02-27 21:42 ` Benjamin Herrenschmidt
2006-02-27 21:50 ` Olaf Hering
2006-02-27 21:53 ` Benjamin Herrenschmidt
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