From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <olivier.matz@6wind.com>
Received: from mail.droids-corp.org (zoll.droids-corp.org [94.23.50.67])
 by dpdk.org (Postfix) with ESMTP id 0440323C
 for <dev@dpdk.org>; Wed,  2 May 2018 16:56:25 +0200 (CEST)
Received: from lfbn-lil-1-169-73.w90-45.abo.wanadoo.fr ([90.45.25.73]
 helo=droids-corp.org)
 by mail.droids-corp.org with esmtpsa (TLS1.0:RSA_AES_256_CBC_SHA1:256)
 (Exim 4.89) (envelope-from <olivier.matz@6wind.com>)
 id 1fDtBJ-00046s-RA; Wed, 02 May 2018 16:56:35 +0200
Received: by droids-corp.org (sSMTP sendmail emulation);
 Wed, 02 May 2018 16:56:22 +0200
Date: Wed, 2 May 2018 16:56:22 +0200
From: Olivier Matz <olivier.matz@6wind.com>
To: Jianfeng Tan <jianfeng.tan@intel.com>
Cc: dev@dpdk.org, anatoly.burakov@intel.com, thomas@monjalon.net
Message-ID: <20180502145622.5lka4i2hqehizij3@neon>
References: <1525255198-20906-1-git-send-email-jianfeng.tan@intel.com>
 <1525269134-103270-1-git-send-email-jianfeng.tan@intel.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <1525269134-103270-1-git-send-email-jianfeng.tan@intel.com>
User-Agent: NeoMutt/20170113 (1.7.2)
Subject: Re: [dpdk-dev] [PATCH v3] eal: fix use-after-free issue on thread
	creation
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <https://dpdk.org/ml/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <https://dpdk.org/ml/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
X-List-Received-Date: Wed, 02 May 2018 14:56:26 -0000

On Wed, May 02, 2018 at 01:52:14PM +0000, Jianfeng Tan wrote:
> After below commit, we encounter some strange issue:
>   1) Dead lock as described here:
>      http://dpdk.org/ml/archives/dev/2018-April/099806.html
>   2) SIGSEGV issue when starting a testpmd in VM.
> 
> Considering below commit changes to use dynamic memory instead of
> stack for memory barrier, we doubt it's caused by use-after-free.
> 
> Fixes: 3d09a6e26d8b ("eal: fix threads block on barrier")
> 
> Reported-by: Maxime Coquelin <maxime.coquelin@redhat.com>
> Reported-by: Lei Yao <lei.a.yao@intel.com>
> Suggested-by: Stephen Hemminger <stephen@networkplumber.org>
> Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
> Suggested-by: Olivier Matz <olivier.matz@6wind.com>

Reviewed-by: Olivier Matz <olivier.matz@6wind.com>

Thank you for fixing my stuff :)