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 232C0C761A6 for ; Mon, 3 Apr 2023 13:19:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232397AbjDCNTm (ORCPT ); Mon, 3 Apr 2023 09:19:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45608 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230102AbjDCNTj (ORCPT ); Mon, 3 Apr 2023 09:19:39 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6504FD1 for ; Mon, 3 Apr 2023 06:19:38 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 00D7561A81 for ; Mon, 3 Apr 2023 13:19:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6413CC433D2; Mon, 3 Apr 2023 13:19:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1680527977; bh=4o73/wPEdsAvrP6wPplYlGDLvvEvn1MOkJ+0Wz1Agnc=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=Qic7sMn5+sCf5CdVyrYy6HUaF8eXT2TSpc2oE4YxiaBK7G/QTB89sV7ISlkCiebMn 9yVco1F5c+K/CAkJ/MnmuIntgjGR65uYidlbyUEARplfoSfvqZqrNR62vW/sCxUle6 vtLDIXlxXYkEprPGX6mfKss8ljJWcBKsTEwBmnchknHZHl/ASm/KvelXZulk4s/GlA naVbT9+1RVIDVg/163ZdYGLgEX1wpGAeb3OaTIijsDRJngOJvJoTopRYy1ptLBKOer wwYJ3+gdwhy3pcyHhgTmDSwmP7xq8DJTZEhKZTn7Br+byILwiJCIVJG56hzPNCnhPR BB99t29ifntJw== Received: from disco-boy.misterjones.org ([51.254.78.96] helo=www.loen.fr) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1pjK5q-005JVe-9L; Mon, 03 Apr 2023 14:19:30 +0100 MIME-Version: 1.0 Date: Mon, 03 Apr 2023 14:19:29 +0100 From: Marc Zyngier To: "zhangjianhua (E)" Cc: Thomas Gleixner , "Gowans, James" , zouyipeng@huawei.com, "Raslan, KarimAllah" , "Woodhouse, David" , linux-kernel@vger.kernel.org Subject: Re: [PATCH] irq: fasteoi handler re-runs on concurrent invoke In-Reply-To: <1a974f41-83ec-9c7f-ddf1-cb093ae95046@huawei.com> References: <20230317095300.4076497-1-jgowans@amazon.com> <001d516c1bb6f0b6d2344f1ae160e796d003c24c.camel@amazon.com> <6d1859b0-20f3-05a8-d8d6-dfb0c9985985@huawei.com> <871qlh9imb.ffs@tglx> <1a974f41-83ec-9c7f-ddf1-cb093ae95046@huawei.com> User-Agent: Roundcube Webmail/1.4.13 Message-ID: <546fbd173aec3b7fc07d253393920bf5@kernel.org> X-Sender: maz@kernel.org Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit X-SA-Exim-Connect-IP: 51.254.78.96 X-SA-Exim-Rcpt-To: chris.zjh@huawei.com, tglx@linutronix.de, jgowans@amazon.com, zouyipeng@huawei.com, karahmed@amazon.com, dwmw@amazon.co.uk, linux-kernel@vger.kernel.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2023-04-03 14:17, zhangjianhua (E) wrote: > 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. Neither solutions are remotely acceptable. I'll look at something a bit more palatable. M. -- Jazz is not dead. It just smells funny...