From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Re: [PATCH] net: use hardware buffer pool to allocate skb Date: Wed, 15 Oct 2014 11:33:23 +0200 Message-ID: <20141015113323.5321b2f7@uryu.home.lan> References: <1413343571-33231-1-git-send-email-Jiafei.Pan@freescale.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: , , , , To: Pan Jiafei Return-path: Received: from mail-wi0-f176.google.com ([209.85.212.176]:61603 "EHLO mail-wi0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751644AbaJOJdm (ORCPT ); Wed, 15 Oct 2014 05:33:42 -0400 Received: by mail-wi0-f176.google.com with SMTP id hi2so12402527wib.3 for ; Wed, 15 Oct 2014 02:33:41 -0700 (PDT) In-Reply-To: <1413343571-33231-1-git-send-email-Jiafei.Pan@freescale.com> Sender: netdev-owner@vger.kernel.org List-ID: Since an skb can sit forever in an application queue, you have created an easy way to livelock the system when enough skb's are waiting to be read.