On Sun, Aug 21, 2011 at 12:06:39PM +0100, Gordan Bobic wrote: > Really? It complains about a max of 1000mV? On my AC100 975mV and > above produces no error. What model did you say you have? Yes, a 10V. It should be fairly obvious the cpu_millivolts in tegra2_dvfs.c includes 1100, the default level is 1100, as can be seen in cpu_speedo_max_millivolts array, and tegra2_dvfs_rail_vdd_cpu.
> >Harmony sets minimum voltage to 750 and maximum voltage to 1125, > >maybe that gives more stability? > > Interesting. It also occurs to me that just tweaking voltages > (which, again, would be much easier if they were run-time adjustable > via /sys as I said in a previous post), it would be really handy to > get core temperature readings? Does the AC100 have temperature > sensors built in? No, we don't know what happens if we started exposing the various settings somewhere, when they are read, etc. To unsafe, in my opinion. > On an unrelated note, I noticed an interesting possible correlation > of an error in my message log with instability that I am currently > investigating. It is possible that I have been barking up a > completely wrong tree so far. I need to do some more investigating > (A _LOT_ of SLUB memory allocation failures, possibly to do with > zram swapping and/or the size of vmalloc set on the kernel command > line). SLUB errors come from rt2800usb usually, without the module loaded, the errors should vanish. You could also try using SLAB instead of SLUB. -- Julian Andres Klode - Debian Developer, Ubuntu Member See http://wiki.debian.org/JulianAndresKlode and http://jak-linux.org/.
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