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Date: Wed, 20 Feb 2013 11:17:34 -0800 From: Eric Dumazet <eric.dumazet@...il.com> To: Johannes Berg <johannes@...solutions.net> Cc: Marc MERLIN <marc@...lins.org>, David Miller <davem@...emloft.net>, Larry.Finger@...inger.net, bhutchings@...arflare.com, linux-wireless@...r.kernel.org, netdev@...r.kernel.org Subject: Re: 3.7.8/amd64 full interrupt hangs due to iwlwifi under big nfs copies out On Wed, 2013-02-20 at 19:16 +0100, Johannes Berg wrote: > Yes and no. The current code doesn't pull in much data, not even the IP > header, so worst case it copies 14 bytes (ethernet header) in mac80211 > to obtain alignment. By pulling in everything here, it later has to copy > everything again later to obtain alignment. Can you give me pointers to the code doing that ? On x86 we should not doing anything. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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