On Mon, 6 Jan 2020 17:07:44 +1100 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
> Hi all,
>
> After merging the akpm tree, today's linux-next build (x86_64
> allmodconfig) produced this warning:
>
> arch/x86/mm/dump_pagetables.c: In function 'ptdump_walk_pgd_level_core':
> arch/x86/mm/dump_pagetables.c:403:1: warning: the frame size of 2128 bytes is larger than 2048 bytes [-Wframe-larger-than=]
> 403 | }
> | ^
>
> Introduced by commit
>
> 710fae4f03f2 ("x86: mm: convert dump_pagetables to use walk_page_range")
>
(gdb) p sizeof(struct mm_struct)
$1 = 1664
yup, that'll do it.
