From mboxrd@z Thu Jan 1 00:00:00 1970 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=-3.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=no 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 42DDBC3A5A4 for ; Fri, 30 Aug 2019 08:28:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 164E521874 for ; Fri, 30 Aug 2019 08:28:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="CRL9Rnnf" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727739AbfH3I2d (ORCPT ); Fri, 30 Aug 2019 04:28:33 -0400 Received: from userp2120.oracle.com ([156.151.31.85]:54304 "EHLO userp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726480AbfH3I2c (ORCPT ); Fri, 30 Aug 2019 04:28:32 -0400 Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x7U8NWRx147445; Fri, 30 Aug 2019 08:28:29 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : subject : date : message-id; s=corp-2019-08-05; bh=gxVjB/oN5DD7m60vJcFswjKz2rM+d5F0c8Ly6zDWk1w=; b=CRL9RnnfchbkWU+VtAn/SP3XcJimx59jEr09Y8+klX1tVtYSWp9vdIMlBoJVRSRojlVW 1zU5qvyVKqtNrT99phsMINPWFKtcjJEomTpv24aAFdDcY/56UB/J3jm8b63zH7TAbJJU 2hoY0UYDN/eGzBCG4azd8NXpwdATMVW2VEAB/CeWXT8R2x/ea62IaUdGqAju709rNioP LIb0qzsy2soRcmIihLsZFYl2p1dM9GOZwq6JqG4TrZD9mQnXZk2dfAq0zjibDX0xPeLB bbTtDk2RmjzQaewAWqmRfvHyDW8yPhtOnLPSEyyr1kCC3PPVhHZ7MwBODs3/X8IpF8m0 6w== Received: from userp3020.oracle.com (userp3020.oracle.com [156.151.31.79]) by userp2120.oracle.com with ESMTP id 2uq009g424-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 30 Aug 2019 08:28:29 +0000 Received: from pps.filterd (userp3020.oracle.com [127.0.0.1]) by userp3020.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x7U8O7gD020137; Fri, 30 Aug 2019 08:26:28 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userp3020.oracle.com with ESMTP id 2upkrg190c-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 30 Aug 2019 08:26:28 +0000 Received: from abhmp0015.oracle.com (abhmp0015.oracle.com [141.146.116.21]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id x7U8QQY1016131; Fri, 30 Aug 2019 08:26:26 GMT Received: from shipfan.cn.oracle.com (/10.113.210.105) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 30 Aug 2019 01:26:26 -0700 From: Zhu Yanjun To: yanjun.zhu@oracle.com, netdev@vger.kernel.org, davem@davemloft.net, nan.1986san@gmail.com Subject: [PATCH 0/1] Fix deadlock problem and make performance better Date: Fri, 30 Aug 2019 04:35:10 -0400 Message-Id: <1567154111-23315-1-git-send-email-yanjun.zhu@oracle.com> X-Mailer: git-send-email 2.7.4 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9364 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=604 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908300090 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9364 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=681 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908300090 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org When running with about 1Gbit/ses for very long time, running ifconfig and netstat causes dead lock. These symptoms are similar to the commit 5f6b4e14cada ("net: dsa: User per-cpu 64-bit statistics"). After replacing network devices statistics with per-cpu 64-bit statistics, the dead locks disappear even after very long time running with 1Gbit/sec. Zhu Yanjun (1): forcedeth: use per cpu to collect xmit/recv statistics drivers/net/ethernet/nvidia/forcedeth.c | 132 +++++++++++++++++++++----------- 1 file changed, 88 insertions(+), 44 deletions(-) -- 2.7.4