On Wed, 2007-01-10 at 09:44 +0100, Franck Bui-Huu wrote: Hi Franck, > Here's is the second attempt to make this works on your Malta board > and all other boards that have some data reserved at the start of > their memories. In these cases the first patchset assumed wrongly that I was happy to try this patch on my 4Kec board with memory starting at 0x10000000 but it doesn't work. Setting PHYS_OFFSET to 0, I get the expected "Wasting 2098176 bytes for tracking 65568 unused pages" and everything works as usual. Setting PHYS_OFFSET to 0x10000000, I get "Wasting 1024 bytes for tracking 32 unused pages", but the kernel doesn't boot and crash in init_bootmem_node(). Looking at phys_to_virt(), it looks like I also need to change PAGE_OFFSET to 0x90000000 to get correct values. This makes the kernel boot with a correct memory map, but userspace doesn't work anymore. Just in case, I'm not using git head, but a 2.6.20 kernel with the 2 patches applied. Just tell me if you need complete dmesg. Regards, -- Maxime