> The kernel doesn't care if one CPU is in OF land while the others > are doing other stuff -- well you have to make sure the OF won't > try to use a hardware device at the same time as the kernel, true.
That statement alone hides an absolute can of worms btw ;-) > I'm a bit concerned about the 100kB or so of data duplication > (on a *quite big* device tree), and the extra code you need > (all changes have to be done to both tree copies). Maybe > I shouldn't be worried; still, it's obviously not a great > idea to *require* any arch to get and keep a full copy of > the tree -- it's wasteful and unnecessary. Well, big device-trees generally are on big machines with enough memory not to care and the only platform I know where the DT can actually change over time is IBM pSeries when doing DLPAR, in which case, OF is dead, it all happens via magic HV/RTAS calls and the kernel is -supposed- to maintain it's own copy and add/remove nodes from it. Ben. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/