Hi. When OF device tree is flattened, the resultant struct has pointers into the 'initial_boot_params' area.
I think that area needs 'reserving', since the text of various properties are contained therein. One could perhaps argue that the BootRom should do that, in the provided OF-tree reserve maps... but if we're gonna keep pointers into the area, seems we should protect it. Adding a -------- lmb_reserve(__pa(initial_boot_params), initial_boot_params->totalsize); ------------ to early_init_devtree() worked for me. There is of course then the problem alluded to in kdump_move_device_tree(), that then this old DT should be un-reserved.. I don't have a suggestion for that problem; hope some of you do? thnx. -dbu.
