From mboxrd@z Thu Jan 1 00:00:00 1970 From: Olivier Matz Subject: Re: [PATCH v3] eal: fix use-after-free issue on thread creation Date: Wed, 2 May 2018 16:56:22 +0200 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 Cc: dev@dpdk.org, anatoly.burakov@intel.com, thomas@monjalon.net To: Jianfeng Tan Return-path: Received: from mail.droids-corp.org (zoll.droids-corp.org [94.23.50.67]) by dpdk.org (Postfix) with ESMTP id 0440323C for ; Wed, 2 May 2018 16:56:25 +0200 (CEST) Content-Disposition: inline In-Reply-To: <1525269134-103270-1-git-send-email-jianfeng.tan@intel.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 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 > Reported-by: Lei Yao > Suggested-by: Stephen Hemminger > Signed-off-by: Jianfeng Tan > Suggested-by: Olivier Matz Reviewed-by: Olivier Matz Thank you for fixing my stuff :)