On Mon, 16 Oct 2006 10:03:13 +0200, Franck Bui-Huu <vagabon.xyz@xxxxxxxxx> wrote: > > end = (unsigned long)&_end; > > tmp = PAGE_ALIGN(end) - sizeof(u32) * 2; > > if (tmp < end) > > tmp += PAGE_SIZE; > > > > Any idea on what is this code for ? > It seems that a minimum gap is needed betweend the end of kernel > code and initrd but I don't see why... Perhaps because current tools put initrd image at that place. For example: arch/mips/boot/addinitrd.c:92: loadaddr = ((SWAB(esecs[2].s_vaddr) + SWAB(esecs[2].s_size) + MIPS_PAGE_SIZE-1) & ~MIPS_PAGE_MASK) - 8; if (loadaddr < (SWAB(esecs[2].s_vaddr) + SWAB(esecs[2].s_size))) loadaddr += MIPS_PAGE_SIZE; initrd_header[0] = SWAB(0x494E5244); initrd_header[1] = SWAB(st.st_size); --- Atsushi Nemoto
