On Fri, 2014-11-07 at 09:25 +0000, Zoltan Kiss wrote: Please do not top post.
> Hi, > > AFAIK in this scenario your skb frag is wrong. The page pointer should > point to the original compound page (not a member of it), and offset > should be set accordingly. > For example, if your compound page is 16K (4 page), then the page > pointer should point to the first page, and if the data starts at the > 3rd page, then offset should be >8K This is not accurate. This BUG_ON() is wrong. It should instead be : BUG_ON(len + offset > PAGE_SIZE<<compound_order(compound_head(page))); splice() code can generate such cases. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
