Message-ID: <1476434561.31114.7.camel@sipsolutions.net> (sfid-20161014_104320_228304_7F3E3AB5)
Subject: Re: [mac80211] BUG_ON with current -git (4.8.0-11417-g24532f7)
From: Johannes Berg <johannes@sipsolutions.net>
To: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Andy Lutomirski <luto@amacapital.net>,
        Stephen Rothwell <sfr@canb.auug.org.au>,
        "linux-next@vger.kernel.org" <linux-next@vger.kernel.org>,
        Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
        Network Development <netdev@vger.kernel.org>,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Herbert Xu <herbert@gondor.apana.org.au>,
        "David S. Miller" <davem@davemloft.net>,
        Linux Wireless List <linux-wireless@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Jouni Malinen <j@w1.fi>
Date: Fri, 14 Oct 2016 10:42:41 +0200
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On Fri, 2016-10-14 at 09:41 +0100, Ard Biesheuvel wrote:

> > I assume the stack buffer itself is not the problem here, but aad,
> > which is allocated on the stack one frame up.
> > Do we really need to revert the whole patch to fix that?
> 
> Ah never mind, this is about 'odata'. Apologies, should have read
> first

Right, odata also goes into an sg list and further on.

I think we should wait for Herbert to chime in before we do any further
work though, perhaps he has any better ideas.

johannes