From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 606F51DB1 for ; Tue, 8 Dec 2015 03:22:16 +0100 (CET) Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP; 07 Dec 2015 18:22:15 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,397,1444719600"; d="scan'208";a="702272648" Received: from yliu-dev.sh.intel.com (HELO yliu-dev) ([10.239.66.49]) by orsmga003.jf.intel.com with ESMTP; 07 Dec 2015 18:22:14 -0800 Date: Tue, 8 Dec 2015 10:23:11 +0800 From: Yuanhan Liu To: Stephen Hemminger Message-ID: <20151208022311.GI29571@yliu-dev.sh.intel.com> References: <1449535821-12384-1-git-send-email-stephen@networkplumber.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1449535821-12384-1-git-send-email-stephen@networkplumber.org> User-Agent: Mutt/1.5.21 (2010-09-15) Cc: dev@dpdk.org, nlaw@brocade.com Subject: Re: [dpdk-dev] [PATCH] vhost: don't stall if guest is slow X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Dec 2015 02:22:16 -0000 On Mon, Dec 07, 2015 at 04:50:21PM -0800, Stephen Hemminger wrote: > When guest is booting (or any othertime guest is busy) it is possible > for the small receive ring (256) to get full. If this happens the > vhost library should just return normally. It's current behavior > of logging just creates massive log spew/overflow which could even > act as a DoS attack against host. > > Reported-by: Nathan Law > Signed-off-by: Stephen Hemminger Acked-by: Yuanhan Liu Thanks. --yliu