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=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 E51A5C0650F for ; Mon, 5 Aug 2019 12:43:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C71EB20651 for ; Mon, 5 Aug 2019 12:43:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728468AbfHEMnX (ORCPT ); Mon, 5 Aug 2019 08:43:23 -0400 Received: from szxga08-in.huawei.com ([45.249.212.255]:58826 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728870AbfHEMnU (ORCPT ); Mon, 5 Aug 2019 08:43:20 -0400 Received: from DGGEMM402-HUB.china.huawei.com (unknown [172.30.72.53]) by Forcepoint Email with ESMTP id DCF5B1ACE30B50EF7388; Mon, 5 Aug 2019 20:43:18 +0800 (CST) Received: from dggeme755-chm.china.huawei.com (10.3.19.101) by DGGEMM402-HUB.china.huawei.com (10.3.20.210) with Microsoft SMTP Server (TLS) id 14.3.439.0; Mon, 5 Aug 2019 20:43:10 +0800 Received: from [127.0.0.1] (10.40.49.11) by dggeme755-chm.china.huawei.com (10.3.19.101) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1591.10; Mon, 5 Aug 2019 20:43:10 +0800 Subject: Re: Bug report: AER driver deadlock To: Bjorn Helgaas CC: , "Rafael J. Wysocki" References: <20190625171639.GA103694@google.com> From: "Fangjian (Turing)" Message-ID: <7b181647-3158-2a79-c6ca-d81056625fc8@huawei.com> Date: Mon, 5 Aug 2019 20:43:42 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.5.2 MIME-Version: 1.0 In-Reply-To: <20190625171639.GA103694@google.com> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.40.49.11] X-ClientProxiedBy: dggeme713-chm.china.huawei.com (10.1.199.109) To dggeme755-chm.china.huawei.com (10.3.19.101) X-CFilter-Loop: Reflected Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Kindly Ping... Best Regards, Jay On 2019/6/26 1:16, Bjorn Helgaas wrote: > On Tue, Jun 04, 2019 at 11:25:44AM +0800, Fangjian (Turing) wrote: >> Hi, We met a deadlock triggered by a NONFATAL AER event during a sysfs >> "sriov_numvfs" operation. Any suggestion to fix such deadlock ? > > Here's a bugzilla report for this; please reference it and this email > thread in any patches to fix it: > > https://bugzilla.kernel.org/show_bug.cgi?id=203981 > > . >