From patchwork Fri Mar 19 03:07:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Rao, Lei" X-Patchwork-Id: 12149907 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A407EC433DB for ; Fri, 19 Mar 2021 03:39:12 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1E65064DE2 for ; Fri, 19 Mar 2021 03:39:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1E65064DE2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:43370 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lN5yh-0001qg-9B for qemu-devel@archiver.kernel.org; Thu, 18 Mar 2021 23:39:11 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:34198) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lN5r7-00013j-Ef for qemu-devel@nongnu.org; Thu, 18 Mar 2021 23:31:21 -0400 Received: from mga12.intel.com ([192.55.52.136]:34615) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lN5r5-00039O-PC for qemu-devel@nongnu.org; Thu, 18 Mar 2021 23:31:21 -0400 IronPort-SDR: m5s5VciSFmEHf7FcRh44RSw+MQt8voeFEtENfruEGeqPTNsbZQjCT4xtr9CbkLDxOL4yr+BYs1 N6lJAiWTl5tw== X-IronPort-AV: E=McAfee;i="6000,8403,9927"; a="169117206" X-IronPort-AV: E=Sophos;i="5.81,259,1610438400"; d="scan'208";a="169117206" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Mar 2021 20:31:18 -0700 IronPort-SDR: P+PLdb0JuYbBthGKarAo4E2c1hsNFdKgyXhOB/G3T4GMp4/YtsQ5gOW8ndrEcOVIkxHUQsgqrO sUM5R607uLjA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,259,1610438400"; d="scan'208";a="606449021" Received: from unknown (HELO localhost.localdomain.bj.intel.com) ([10.240.192.103]) by fmsmga005.fm.intel.com with ESMTP; 18 Mar 2021 20:31:15 -0700 From: leirao To: chen.zhang@intel.com, lizhijian@cn.fujitsu.com, jasowang@redhat.com, quintela@redhat.com, dgilbert@redhat.com, pbonzini@redhat.com, lukasstraub2@web.de Subject: [PATCH v3 10/10] Fixed calculation error of pkt->header_size in fill_pkt_tcp_info() Date: Fri, 19 Mar 2021 11:07:48 +0800 Message-Id: <1616123268-89517-11-git-send-email-lei.rao@intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1616123268-89517-1-git-send-email-lei.rao@intel.com> References: <1616123268-89517-1-git-send-email-lei.rao@intel.com> Received-SPF: pass client-ip=192.55.52.136; envelope-from=lei.rao@intel.com; helo=mga12.intel.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Rao, Lei" , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: "Rao, Lei" The data pointer has skipped vnet_hdr_len in the function of parse_packet_early().So, we can not subtract vnet_hdr_len again when calculating pkt->header_size in fill_pkt_tcp_info(). Otherwise, it will cause network packet comparsion errors and greatly increase the frequency of checkpoints. Signed-off-by: Lei Rao Signed-off-by: Zhang Chen Reviewed-by: Li Zhijian --- net/colo-compare.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/colo-compare.c b/net/colo-compare.c index 26464a2..32b7775 100644 --- a/net/colo-compare.c +++ b/net/colo-compare.c @@ -211,7 +211,7 @@ static void fill_pkt_tcp_info(void *data, uint32_t *max_ack) pkt->tcp_ack = ntohl(tcphd->th_ack); *max_ack = *max_ack > pkt->tcp_ack ? *max_ack : pkt->tcp_ack; pkt->header_size = pkt->transport_header - (uint8_t *)pkt->data - + (tcphd->th_off << 2) - pkt->vnet_hdr_len; + + (tcphd->th_off << 2); pkt->payload_size = pkt->size - pkt->header_size; pkt->seq_end = pkt->tcp_seq + pkt->payload_size; pkt->flags = tcphd->th_flags;