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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7F67BC761A6 for ; Mon, 3 Apr 2023 13:17:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231934AbjDCNRu (ORCPT ); Mon, 3 Apr 2023 09:17:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44600 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230102AbjDCNRr (ORCPT ); Mon, 3 Apr 2023 09:17:47 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AE2ED1994 for ; Mon, 3 Apr 2023 06:17:46 -0700 (PDT) Received: from canpemm500005.china.huawei.com (unknown [172.30.72.53]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4PqrvD4QXYzSqKr; Mon, 3 Apr 2023 21:14:00 +0800 (CST) Received: from [10.67.110.73] (10.67.110.73) by canpemm500005.china.huawei.com (7.192.104.229) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.23; Mon, 3 Apr 2023 21:17:43 +0800 Message-ID: <1a974f41-83ec-9c7f-ddf1-cb093ae95046@huawei.com> Date: Mon, 3 Apr 2023 21:17:26 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.3.3 Subject: Re: [PATCH] irq: fasteoi handler re-runs on concurrent invoke To: Thomas Gleixner , "Gowans, James" , "zouyipeng@huawei.com" CC: "maz@kernel.org" , "Raslan, KarimAllah" , "Woodhouse, David" , "linux-kernel@vger.kernel.org" References: <20230317095300.4076497-1-jgowans@amazon.com> <001d516c1bb6f0b6d2344f1ae160e796d003c24c.camel@amazon.com> <6d1859b0-20f3-05a8-d8d6-dfb0c9985985@huawei.com> <871qlh9imb.ffs@tglx> From: "zhangjianhua (E)" In-Reply-To: <871qlh9imb.ffs@tglx> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit X-Originating-IP: [10.67.110.73] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To canpemm500005.china.huawei.com (7.192.104.229) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Thomas I have the same problem as James and Yipeng, while modify the irq affinity concurrently during LPI interrupt processing, it does cause interrupt loss. Fortunately, James and Yipeng give their patches separately with the similar solutions, and hope you'll take this issue seriously, thanks. 在 2023/3/22 18:37, Thomas Gleixner 写道: > On Wed, Mar 22 2023 at 07:48, James Gowans wrote: >> On Wed, 2023-03-22 at 14:26 +0800, Yipeng Zou wrote: >> Thomas, would you be open to taking the patch to tweak the handle_fasteoi_irq >> handler? Or is there a different solution to this problem which you >> prefer? > It's in my backlog.