On Mon, 11 Feb 2008, Abel Bernabeu wrote: > > set_brk(start, end) allocs just page aligned regions (by "colapsing" > > both extremes to the start of the page in which they lay)... That > > means than even if both pointers are not equal there are still some > > chances that set_brk has allocated no space at all because > > ELF_PAGEALIGN(elf_bss) != ELF_PAGEALIGN(elf_brk). > Sorry this was an errata in my comment: no space is allocated at all > because ELF_PAGEALIGN(elf_bss) == ELF_PAGEALIGN(elf_brk)
I also don't fully understand the "colapsing" part ... ELF_PAGEALIGN() really aligns the address to the nearest page boundary at the higher address ... so I don't understand the comment about colapsing to the start of the page that contains the address, it's seems to me that the real behavior is quite the opposite. -- Jiri Kosina SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
