On Feb 22, 2014, at 12:23 AM, Erik de Castro Lopo <er...@mega-nerd.com> wrote:
> Hi, > > I run debian testing on a dual G5 powermac. > > Just upgraded from linux-image-3.4-trunk-powerpc64 to > linux-image-3.12-1-powerpc64 and found the same issue. The windfarm > modules are loading but the about 30 seconds to a couple of minutes > after booting to 3.12-1-powerpc64 the fans speed up to full speed. > > lsmod says the windfarm modules are being loaded, and its the same > modules being loaded under the 3.4 kernel. > > I have however found a difference. On 3.12 I get: > >> dmesg | grep windfarm > [ 4.358299] windfarm: initializing for dual-core desktop G5 > > whereas on 3.4 I get: > >> dmesg | grep windfarm > [ 4.791589] windfarm: initializing for dual-core desktop G5 > [ 9.077416] windfarm: CPUs control loops started. > [ 12.440957] windfarm: Backside control loop started. > [ 12.491701] windfarm: Slots control loop started. > [ 12.592933] windfarm: Drive bay control loop started. > > Definitely something wonky there. > > Erik > Erik de Castro Lopo wrote: > >> Hi, >> >> A previous message in this bug suggested that the i2c_powermac module >> may be involved. >> >> I can confirm that this module is missing completely for the 3.12 kernel >> (there is no module of that name in the /lib/modules/3.12-1-powerpc64/ >> tree) whereas for the 3.4 kernel this module is available and is being >> auto-loaded. > > It seems that the i2c_powermac module from 3.4 is now called i2c-powermac > (underscore replaced with a minux sign). > > Manually loading the i2c-powermac module results in fans that run at the > normal. expected low speed. I will be adding this to /etc/modules as a > workaround for this issue. > > A question about kernel modules, can one module (eg windfarm_core) be > made to depend on and auto-load another (eg i2c-powermac)? > > Erik > -- > ---------------------------------------------------------------------- > Erik de Castro Lopo > http://www.mega-nerd.com/ > > -- > To unsubscribe, send mail to 713943-unsubscr...@bugs.debian.org. > I'm forwarding this to the debian-powerpc list, incase someone there can help! Rick -- To UNSUBSCRIBE, email to debian-powerpc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/d1fd7102-6925-4f1a-a04d-24a6cba0e...@pobox.com
