From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1753464AbbDQHyp (ORCPT <rfc822;w@1wt.eu>);
	Fri, 17 Apr 2015 03:54:45 -0400
Received: from mailout1.w1.samsung.com ([210.118.77.11]:8920 "EHLO
	mailout1.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S1751842AbbDQHyi (ORCPT
	<rfc822;linux-kernel@vger.kernel.org>);
	Fri, 17 Apr 2015 03:54:38 -0400
X-AuditID: cbfec7f5-f794b6d000001495-6a-5530bc3ec2ae
Message-id: <5530BC36.3030900@samsung.com>
Date: Fri, 17 Apr 2015 10:54:30 +0300
From: Andrey Ryabinin <a.ryabinin@samsung.com>
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101
 Thunderbird/31.5.0
MIME-version: 1.0
To: Joe Perches <joe@perches.com>, Sasha Levin <sasha.levin@oracle.com>
Cc: Steven Rostedt <rostedt@goodmis.org>, linux-kernel@vger.kernel.org,
        Andrew Morton <akpm@linux-foundation.org>,
        Arnaldo Carvalho de Melo <acme@kernel.org>,
        Namhyung Kim <namhyung@kernel.org>,
        Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
        Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
        Guilherme Cox <cox@computer.org>, Tony Luck <tony.luck@gmail.com>,
        Xie XiuQi <xiexiuqi@huawei.com>
Subject: Re: [PATCH] kasan: Show gcc version requirements in Kconfig and
 Documentation
References: <20150403013802.220157513@goodmis.org>
 <20150403014123.997385206@goodmis.org> <552E661D.5060502@oracle.com>
 <20150415100549.09cabb59@gandalf.local.home> <552F0937.4010009@oracle.com>
 <20150416232116.39cd9f74@grimm.local.home> <5530852A.70202@oracle.com>
 <1429245851.2850.76.camel@perches.com>
In-reply-to: <1429245851.2850.76.camel@perches.com>
Content-type: text/plain; charset=windows-1252
Content-transfer-encoding: 7bit
X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprEIsWRmVeSWpSXmKPExsVy+t/xK7p2ewxCDfbvMLLoureDzWLO+jVs
	FlMnLGWymH3/MYvF5V1z2CzW713DZLH57Blmi6ZlW1ks9nU8YLJYfOQ2s8WJK3uYLT4v/8Pm
	wOPRsqqX2WPp6TdsHjtn3WX3aNl3i92j9cwaFo+WI29ZPTat6mTzODHjN4vHx6e3WDy+rLrG
	7PF5k1wAdxSXTUpqTmZZapG+XQJXxtxvN5gKrrFW/Jiwga2BcRtLFyMnh4SAicTfnYeZIGwx
	iQv31rN1MXJxCAksZZQ43XOXGcL5zigx5+MMdpAqXgEtiQ0PJzKD2CwCqhJrF74Dm8QmoCfx
	b9Z2oG4ODlGBCInblzkhygUlfky+B1YiIuAu8e3sCiaQmcwCs5klHq78xQqSEAaqn79uKjvE
	sh1MEs9fzQI7iVPAWOLe4vtgQ5mBFty/qAUSZhaQl9i85i3zBEaBWUh2zEKomoWkagEj8ypG
	0dTS5ILipPRcI73ixNzi0rx0veT83E2MkJj6uoNx6TGrQ4wCHIxKPLwbAg1ChVgTy4orcw8x
	SnAwK4nwcmwDCvGmJFZWpRblxxeV5qQWH2KU5mBREueduet9iJBAemJJanZqakFqEUyWiYNT
	qoFxpvYez+Ct6e/s/6ZxRIWtVZh/v+TehG1TzwTMYm9otpnB/dJur6yGwALNJWy3L6o9Mf+s
	qrX8sdH/NRvXumjw8drP0nm5JzN2YY/Vrd+ODd927X6Yqzx7lQKLSE3rmj0xS8NFzx5fvGvL
	Dpe/oZEL/O1S71w8lW6xxMlnuXS6t3E421TmQrU+JZbijERDLeai4kQAdIbef6UCAAA=
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On 04/17/2015 07:44 AM, Joe Perches wrote:
> The documentation shows a need for gcc > 4.9.2, but it's
> really >=.  The Kconfig entries don't show require versions
> so add them.  Correct a latter/later typo too.
> 
> Signed-off-by: Joe Perches <joe@perches.com>
> ---
> 
> (dropping Ingo from cc's)
> 
> On Thu, 2015-04-16 at 23:59 -0400, Sasha Levin wrote:
>> On 04/16/2015 11:21 PM, Steven Rostedt wrote:
>>> I have no idea what event caused the issue :-/
>> 4.9.2+ is needed for KASan.
> 
> Perhaps the documentation and Kconfig entries could
> describe that a bit better.
> 

Could you also please mention that gcc 5+ is required to detect out of bounds accesses
to global and stack variables?