* Rafael J. Wysocki <rjw@xxxxxxx> wrote: > > how different can it be, for resume to work? I mean, we'll have > > deeply kernel version dependent variables in RAM. Am i missing > > something obvious? > > On x86-64 it can be almost totally different (by restoring a > hibernation image we replace the entire contents of RAM with almost no > constraints). > > [Well, using a relocatable kernel for restoring an image with > nonrelocatable one or vice versa is rather not the best idea, but > everything else should work in theory.] > > On i386 the boot kernel is still required to be the same as the one in > the image. what's exactly in the hibernation image? Dirty data i suppose - but what about kernel-internal pages. What if we go from SLAB to SLUB? What if the size of a structure changes? Etc. Ingo _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
