From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from rhun.apana.org.au ([64.62.148.172]:47390 "EHLO arnor.apana.org.au" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754066AbYEDJo6 (ORCPT ); Sun, 4 May 2008 05:44:58 -0400 Date: Sun, 4 May 2008 17:44:44 +0800 From: Herbert Xu To: Johannes Berg Cc: David Miller , mb@bu3sch.de, netdev@vger.kernel.org, linux-wireless@vger.kernel.org Subject: Re: mac80211 truesize bugs Message-ID: <20080504094444.GA541@gondor.apana.org.au> (sfid-20080504_114425_247548_E3272549) References: <1209815533.3987.21.camel@johannes.berg> <20080503.180300.10562559.davem@davemloft.net> <1209865354.6210.23.camel@johannes.berg> <20080504020203.GA30514@gondor.apana.org.au> <1209866916.6210.39.camel@johannes.berg> <20080504021213.GA30660@gondor.apana.org.au> <1209867740.6210.46.camel@johannes.berg> <20080504031652.GA30993@gondor.apana.org.au> <1209890847.6210.51.camel@johannes.berg> <1209892489.6210.56.camel@johannes.berg> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1209892489.6210.56.camel@johannes.berg> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Sun, May 04, 2008 at 11:14:49AM +0200, Johannes Berg wrote: > > I just re-did the test, and I definitely need 29 more bytes on, for > example, the IPv6 autodiscovery packets and ICMP packets generated with > ping(8). Some of them even need additional tailroom. Could you find out the code path that created the skb in the kernel so we can see why there isn't enough head room? Thanks, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt