On Fre, 2013-08-02 at 18:58 +0300, Aaro Koskinen wrote: > On Fri, Aug 02, 2013 at 04:47:51PM +0200, Michel Dänzer wrote: > > On Fre, 2013-08-02 at 22:51 +1000, Benjamin Herrenschmidt wrote: > > > On Fri, 2013-08-02 at 12:03 +0200, Michel Dänzer wrote: > > > > Could a similar change fix the same problem on desktop G5s? The same > > > > values for slots_param in windfarm_pm112.c don't help, unfortunately. > > > > > > You have a 11,2 and a noisy fan ? Odd, mine(s) don't.... I can dbl check > > > the values vs. what Darwin uses tomorrow... > > > > Yes, see /proc/cpuinfo below. > > > > With older kernels (currently still using Debian's 3.2.0-4-powerpc64 > > because of this problem), the fans go basically silent as soon as the > > windfarm modules are loaded. With current kernels, the fans stay at the > > level OF sets them to, until after a while they go into 'airplane mode'. > > > > One thing I notice now is that the lines like > > > > [ 9.539173] windfarm: CPUs control loops started. > > [ 16.209962] windfarm: Backside control loop started. > > [ 16.262274] windfarm: Slots control loop started. > > [ 16.371642] windfarm: Drive bay control loop started. > > > > no longer appear in dmesg with current kernels. Should they? > > Yes. They are printed once all the sensor and control modules are > loaded and registered. If the loops are not started, it's basically > doing nothing. Maybe something goes wrong in module loading? What lsmod > is showing?
Thanks for the suggestion. The same windfarm modules were loaded in both cases, but i2c_powermac wasn't loaded with the newer kernels. Loading it manually fixes the problem. How is i2c_powermac supposed to get loaded with current kernels? -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Debian, X and DRI developer _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
