On Fri, Nov 06, 2020 at 03:10:01PM +0100, Alexander A Sverdlin wrote: > From: Alexander Sverdlin <alexander.sverdlin@xxxxxxxxx> > > Linux doesn't own the memory immediately after the kernel image. On Octeon > bootloader places a shared structure right close after the kernel _end, > refer to "struct cvmx_bootinfo *octeon_bootinfo" in cavium-octeon/setup.c. > > If check_kernel_sections_mem() rounds the PFNs up, first memblock_alloc() > inside early_init_dt_alloc_memory_arch() <= device_tree_init() returns > memory block overlapping with the above octeon_bootinfo structure, which > is being overwritten afterwards. as this special for Octeon how about added the memblock_reserve in octen specific code ? Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea. [ RFC1925, 2.3 ]
