On Tue, 18 Dec 2007 20:52:07 +0100 (CET) Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote: > On Tue, 18 Dec 2007, Andrew Morton wrote: > > On Sun, 16 Dec 2007 11:51:00 +0100 (CET) Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote: > > > On recent kernels, I get the following error when using an initrd: > > > > > > | initrd overwritten (0x00b78000 < 0x07668000) - disabling it. > > > > > > My Amiga 4000 has 12 MiB of RAM at physical address 0x07400000 (virtual > > > 0x00000000). > > > The initrd is located at the end of RAM: 0x00b78000 - 0x00c00000 (virtual). > > > The overwrite test compares the (virtual) initrd location to the (physical) > > > first available memory location, which fails. > > > > > > This patch converts initrd_start to a page frame number, so it can be safely > > > compared with min_low_pfn. > > > > > > Before the introduction of discontiguous memory support on m68k > > > (12d810c1b8c2b913d48e629e2b5c01d105029839), min_low_pfn was just left > > > untouched by the m68k-specific code (zero, I guess), and everything worked > > > fine. > > > > breaks x86. > > > > init/main.c: In function 'start_kernel': > > init/main.c:601: error: implicit declaration of function 'virt_to_pfn' > > init/main.c:603: warning: format '%08lx' expects type 'long unsigned int', but argument 2 has type 'int' > > Interestingly, virt_to_pfn() exists on a few architectures only :-( > > So what's the correct portable construct to use instead? > I guess page_to_pfn(virt_to_page(addr))? - To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
