From: Eric Dumazet <[email protected]> Date: Thu, 06 Feb 2014 10:42:42 -0800
> From: Eric Dumazet <[email protected]> > > sock_alloc_send_pskb() & sk_page_frag_refill() > have a loop trying high order allocations to prepare > skb with low number of fragments as this increases performance. > > Problem is that under memory pressure/fragmentation, this can > trigger OOM while the intent was only to try the high order > allocations, then fallback to order-0 allocations. > > We had various reports from unexpected regressions. > > According to David, setting __GFP_NORETRY should be fine, > as the asynchronous compaction is still enabled, and this > will prevent OOM from kicking as in : ... > Signed-off-by: Eric Dumazet <[email protected]> > Acked-by: David Rientjes <[email protected]> Applied, do we want this for -stable? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
