Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752699AbcJNInF (ORCPT ); Fri, 14 Oct 2016 04:43:05 -0400 Received: from s3.sipsolutions.net ([5.9.151.49]:57535 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750764AbcJNImw (ORCPT ); Fri, 14 Oct 2016 04:42:52 -0400 Message-ID: <1476434561.31114.7.camel@sipsolutions.net> Subject: Re: [mac80211] BUG_ON with current -git (4.8.0-11417-g24532f7) From: Johannes Berg To: Ard Biesheuvel Cc: Andy Lutomirski , Stephen Rothwell , "linux-next@vger.kernel.org" , Sergey Senozhatsky , Network Development , Sergey Senozhatsky , Herbert Xu , "David S. Miller" , Linux Wireless List , "linux-kernel@vger.kernel.org" , Jouni Malinen Date: Fri, 14 Oct 2016 10:42:41 +0200 In-Reply-To: (sfid-20161014_104110_693126_BE54E499) References: <20161010150358.GA514@swordfish> <20161010153050.GA836@swordfish> <1476263106.5271.23.camel@sipsolutions.net> <20161012141245.GA436@swordfish> <1476282127.5271.30.camel@sipsolutions.net> <1476338524.4904.1.camel@sipsolutions.net> <20161013134252.GA583@swordfish> <1476366354.4904.31.camel@sipsolutions.net> <1476429916.4382.12.camel@sipsolutions.net> <1476433699.31114.6.camel@sipsolutions.net> (sfid-20161014_104110_693126_BE54E499) Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.20.5-1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 504 Lines: 15 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