Re: [PATCH] x86_64: fix overlap between pagetable with bss section

Ingo Molnar
2008-01-29T17:43:16Z

* Yinghai Lu <Yinghai.Lu@Sun.COM> wrote:

> [PATCH] x86_64: fix overlap between pagetable with bss section
>
> one early crash on one 8 node 256g machine

> +++ b/arch/x86/mm/init_64.c
> @@ -358,6 +358,8 @@ static void __init find_early_table_space(unsigned long end)
> if (table_start == -1UL)
> panic("Cannot find space for the kernel page tables");
>
> + /* need to round it up to avoid overlap less one page */
> + table_start = round_up(table_start, PAGE_SIZE);
> table_start >>= PAGE_SHIFT;
> table_end = table_start;

thanks, applied.

Ingo