On Thu, Jan 19, 2017 at 9:03 AM, Eric Dumazet <eric.duma...@gmail.com> wrote:
> From: Eric Dumazet <eduma...@google.com>
>
> A driver using dev_alloc_page() must not reuse a page allocated from
> emergency memory reserve.
>
> Otherwise all packets using this page will be immediately dropped,
> unless for very specific sockets having SOCK_MEMALLOC bit set.
>
> This issue might be hard to debug, because only a fraction of received
> packets would be dropped.
>
> Fixes: 4415a0319f92 ("net/mlx5e: Implement RX mapped page cache for page
> recycle")
> Signed-off-by: Eric Dumazet <eduma...@google.com>
> Cc: Tariq Toukan <tar...@mellanox.com>
> Cc: Saeed Mahameed <sae...@mellanox.com>
Acked-by: Saeed Mahameed <sae...@mellanox.com>
