Re: WARNING in sk_stream_kill_queues (5)

[Eric Dumazet]

On 12/3/20 6:41 PM, Marco Elver wrote:

> One more experiment -- simply adding
> 
> --- a/net/core/skbuff.c
> +++ b/net/core/skbuff.c
> @@ -207,7 +207,21 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,
>  	 */
>  	size = SKB_DATA_ALIGN(size);
>  	size += SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
> +	size = 1 << kmalloc_index(size); /* HACK */
>  	data = kmalloc_reserve(size, gfp_mask, node, &pfmemalloc);
> 
> 
> also got rid of the warnings. Something must be off with some value that
> is computed in terms of ksize(). If not, I don't have any explanation
> for why the above hides the problem.

Maybe the implementations of various macros (SKB_DATA_ALIGN and friends)
hae some kind of assumptions, I will double check this.