Re: [PATCH] kmemleak: Add option to print warnings to dmesg

[Catalin Marinas]

On Fri, Aug 24, 2018 at 02:40:11PM +0200, Vincent Whitchurch wrote:
> diff --git a/mm/kmemleak.c b/mm/kmemleak.c
> index 9a085d525bbc..61ba47a357fc 100644
> --- a/mm/kmemleak.c
> +++ b/mm/kmemleak.c
> @@ -311,6 +311,9 @@ static void hex_dump_object(struct seq_file *seq,
>       const u8 *ptr = (const u8 *)object->pointer;
>       size_t len;
>  
> +     if (!seq)
> +             return;
> +
>       /* limit the number of lines to HEX_MAX_LINES */
>       len = min_t(size_t, object->size, HEX_MAX_LINES * HEX_ROW_SIZE);
>  

We have a print_hex_dump() function you could use here instead of
skipping it. Sometimes such information is useful to capture part of the
object state.

-- 
Catalin