Re: 5.7.0 page allocation failure: order:0, mode:0x400d0

[Chris Murphy <lists@colorremedies.com>]

On Mon, Jun 8, 2020 at 3:33 PM Hugh Dickins <hughd@google.com> wrote:
>
> ChrisM, could you try with the patch below, and see if it works
> for you - I hope it doesn't just give you a blank screen.

Did this. Does compile, and boot, no blank screen, and webkitgtk
compiles without error (it ends in OOM, as expected).


>
>
> --- 5.7.0/mm/swap_state.c       2020-05-31 16:49:15.000000000 -0700
> +++ linux/mm/swap_state.c       2020-06-08 14:27:38.211813658 -0700
> @@ -23,6 +23,7 @@
>  #include <linux/huge_mm.h>
>
>  #include <asm/pgtable.h>
> +#include "internal.h"
>
>  /*
>   * swapper_space is a fiction, retained to simplify the path through
> @@ -418,7 +419,8 @@ struct page *__read_swap_cache_async(swp
>                 /* May fail (-ENOMEM) if XArray node allocation failed. */
>                 __SetPageLocked(new_page);
>                 __SetPageSwapBacked(new_page);
> -               err = add_to_swap_cache(new_page, entry, gfp_mask & GFP_KERNEL);
> +               err = add_to_swap_cache(new_page, entry,
> +                                       gfp_mask & GFP_RECLAIM_MASK);
>                 if (likely(!err)) {
>                         /* Initiate read into locked page */
>                         SetPageWorkingset(new_page);



-- 
Chris Murphy