Re: kernel 3.2.27 on arm: WARNING: at mm/page_alloc.c:2109 __alloc_pages_nodemask+0x1d4/0x68c()

Maxime Bizon
2012-10-05T14:50:59Z

On Fri, 2012-10-05 at 15:02 +0200, Eric Dumazet wrote:

> On Fri, 2012-10-05 at 14:51 +0200, Maxime Bizon wrote:
>
> > > New convention would be : pass number of needed bytes after current
> > > tail, not after current end.
> >
> > Fully agree on this
> >
>
> Here is the proposal :

Looks fine

What is your plan for the actual pskb_expand_head() code now that you
will have absolute values for headroom & tailroom ?

Because there will still be callers that have no clue of required
tailroom (nor further headroom requirement), like skb_cow() in
vlan_reorder_header().

--
Maxime