From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id ACBE6A0471 for ; Tue, 18 Jun 2019 17:49:01 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 4B6971C1AA; Tue, 18 Jun 2019 17:49:00 +0200 (CEST) Received: from mail-pl1-f194.google.com (mail-pl1-f194.google.com [209.85.214.194]) by dpdk.org (Postfix) with ESMTP id 206361C195 for ; Tue, 18 Jun 2019 17:48:58 +0200 (CEST) Received: by mail-pl1-f194.google.com with SMTP id c14so5904003plo.0 for ; Tue, 18 Jun 2019 08:48:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Vd5zDgglU5AV3rO3bY3H6GmPPHT2DJB9C9NK5opyMK0=; b=T8TOaJRx3FtxhUQnu2Cd44R1K8IMh/9vtihFbxXJ3tBQbPdifF/GMusmC7wYutNpXV vEQQwDkHt11YxaZohSad+RHySA9DfqAOM8nt00+IzWVDm5b7MwWeR7m3w9Du7hVJq6bd yqOIsXdZ3eNJv7civNyq2HH0gQNghOdTo8sPMGbGtxi70jUlP1vqleCMpECcE2CYFj9y VA+qtyG3mlGsCSN95rp74bH9fEcXCZaQsKMR8UoJnmzJdK2esI5+z1coqBoPyMHs2OR5 es4HsCBnK6e1Gs/EG9ZqH1jiSXA32xM5JBZ8X46PT3eujbGiIhOh4bqphSOmbSIhmwDW r+8Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Vd5zDgglU5AV3rO3bY3H6GmPPHT2DJB9C9NK5opyMK0=; b=WBidslFAG0/dpKiFC6KRlPZEIdU2SexLU5sk5K8MEqUefD36ZQq7Ko0718/cZ1QoTg L3ote8h4a770FajBDgZ5Nd6mlJZDQ3vE3F7ep3P3kzeEkjDAQKpy92NnlMcGWb8bvLYP Q1dBoXCGb6pFygG2HUj+NHTY/J3Jmcik41angTRpQFKMQ4qbqArO73jL8WU3Azk4dsEI W8aHoIbKIAkRN4hqwatI4eQSEgIb7K8368RxXkBeUiwx5cm7SLlM5eX3fFOX6mWawIT9 hb+PYUyt8H0qiWUbeBXb90zTCIIS4qvQM8x8obR/m8waD5cRf9I9eAjmXUvrTqN5rM7E 7OrA== X-Gm-Message-State: APjAAAUFO2I0qq1vP2WjzhiKPv+hnbcTNDfLDqjkG6w/567IbQBlWXi6 6ZB4E4p0aOxkl8arYX9fhGovPQ== X-Google-Smtp-Source: APXvYqy8e/XndA1g2Z+qkfghoIwNNjiS+7Ut1+mM1NTg9NPBcG2EUUuz2+Ct6ysOKfBqK1qyzVPciA== X-Received: by 2002:a17:902:7249:: with SMTP id c9mr8257363pll.25.1560872937832; Tue, 18 Jun 2019 08:48:57 -0700 (PDT) Received: from hermes.lan (204-195-22-127.wavecable.com. [204.195.22.127]) by smtp.gmail.com with ESMTPSA id u4sm14814357pfu.26.2019.06.18.08.48.57 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Tue, 18 Jun 2019 08:48:57 -0700 (PDT) Date: Tue, 18 Jun 2019 08:48:48 -0700 From: Stephen Hemminger To: Yangchao Zhou Cc: dev@dpdk.org, ferruh.yigit@intel.com Message-ID: <20190618084848.2359e48f@hermes.lan> In-Reply-To: <20190312092232.93640-1-zhouyates@gmail.com> References: <20190228073010.49716-1-zhouyates@gmail.com> <20190312092232.93640-1-zhouyates@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH v2] kni: fix possible kernel crash with va2pa X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list 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 Tue, 12 Mar 2019 17:22:32 +0800 Yangchao Zhou wrote: > va2pa depends on the physical address and virtual address offset of > current mbuf. It may get the wrong physical address of next mbuf which > allocated in another hugepage segment. > > In rte_mempool_populate_default(), trying to allocate whole block of > contiguous memory could be failed. Then, it would reserve memory in > several memzones that have different physical address and virtual address > offsets. The rte_mempool_populate_default() is used by > rte_pktmbuf_pool_create(). > > Signed-off-by: Yangchao Zhou Could you add a Fixes tag?