On Wed, 11 Jul 2012, Mitch Bradley wrote: > On 7/8/2012 6:30 PM, Nicolas Pitre wrote: > > On Fri, 6 Jul 2012, Mitch Bradley wrote: > > > >> For now, I'm putting the initrd at the end of memory and the dtb > >> below that. That seems to work, but I'm unsure whether or not > >> I'm just "getting lucky". > > > > That's also perfectly fine. > > Alas, that worked for machines with 512 MiB of main memory, but failed > on 1 GiB machines. My guess is that, when the initrd and dtb are near > the top of a 1 GiB memory, the virtual address gets too near the top of > the kernel's 1 GiB of virtual space (which starts at 0xc0000000), > perhaps colliding with the VMALLOC space.
Indeed, that won't work in that case. > Putting them just below the 128 MiB boundary seems to work. Or at the 128MB mark, or any location between 64MB and 512MB should be fine in practice. Nicolas _______________________________________________ devicetree-discuss mailing list devicetree-discuss@lists.ozlabs.org https://lists.ozlabs.org/listinfo/devicetree-discuss
