Received: by 10.223.148.5 with SMTP id 5csp6750366wrq; Wed, 17 Jan 2018 18:34:44 -0800 (PST) X-Google-Smtp-Source: ACJfBouOLbZ031CirW9kSUx0Mj9SRQJS1kaFWTT6dStm7jAI1skDK7OUQPwMYETL0dlD6dc/gqUk X-Received: by 10.84.142.133 with SMTP id 5mr27061872plx.136.1516242884216; Wed, 17 Jan 2018 18:34:44 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1516242884; cv=none; d=google.com; s=arc-20160816; b=f0KmwszTADqQReCAk7HJ2GXFowRRJlTPZtbZUCpXL9SlodVa+c5nhPUbZsJnQOKRNI NKJwX2ov1fHtTu69HIXrUJljLnNBKYT8FOaDw7ToISPJJTWLEQ9PFeQQ/GUmUMagFY01 JxxtbXMkHqTX4i6MgYdJSRI+72TFrLmRKR24KWJTvrM/Mo4XRozXd4QEFJXzj6N/3Vbv e+aoVo1d5bXSQnlCr4fvstOPGbTk2IR0bhSh/KWpKUzTPTCCqvsTSuJUVquRWE1ah6Of GbFktgbkVVr4cK3YQCQLEG8YMdTPAv7/d86kDYDzbXZ3o8hOiypubDnqswGOfCJLggR4 p2rw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:arc-authentication-results; bh=H/LoPAEU63fDfv6+5v1dMVX8vj1Y2sG4d0dLxDATa6k=; b=Q9YQbKnL7E8l9mOCNxEP/ZU7d8vlkF1kTH2G5qUGgaKDYBDr+qHDcZJJ1Z53ERQLAB X1lfHVt/oCw7LsSJEYwTfAU6KY7vY71bILga9oRJm2r4x91vSZKz+TwBj6HO+2w3SvMd F9iBWa7wbgoRYjSiuZp65QuAJLyfXxYNL3uZsbjppcB5IAlW1hG3OQ274gAMuV/9WN9u m7THzZ53nI2qGmVJJ6+XXaRXrOvChqp0joIMyuU1/cw8YjARI58/Z4E5u3i9cjfrd9o8 WNJjm64dCkGp/ijuqbMo0MqvzF0yD1B/runQglWb80FT1I8ah8dSaNybzedRSUcAi6pi yHow== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id i62si5465844pfe.383.2018.01.17.18.34.30; Wed, 17 Jan 2018 18:34:44 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753142AbeARCeF (ORCPT + 99 others); Wed, 17 Jan 2018 21:34:05 -0500 Received: from mga09.intel.com ([134.134.136.24]:40713 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752320AbeARCeE (ORCPT ); Wed, 17 Jan 2018 21:34:04 -0500 X-Amp-Result: UNSCANNABLE X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 17 Jan 2018 18:34:03 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.46,375,1511856000"; d="scan'208";a="196482759" Received: from unknown (HELO localhost.localdomain) ([10.232.112.44]) by fmsmga005.fm.intel.com with ESMTP; 17 Jan 2018 18:34:03 -0800 Date: Wed, 17 Jan 2018 19:37:20 -0700 From: Keith Busch To: Thomas Gleixner Cc: LKML Subject: Re: [BUG 4.15-rc7] IRQ matrix management errors Message-ID: <20180118023720.GE7562@localhost.localdomain> References: <20180116071145.GA5643@localhost.localdomain> <20180117022511.GD6259@localhost.localdomain> <20180117075500.GB7562@localhost.localdomain> <20180117142440.GC7562@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.1 (2017-09-22) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 17, 2018 at 04:01:47PM +0100, Thomas Gleixner wrote: > Which device is allocating gazillions of non-managed interrupts? I believe that would be the i40e. :) > The patch below should cure that by spreading them out on allocation. Yep, this is successfully testing already over 200 iterations that used to fail within only a few. I'd say the problem is cured. Thanks! Tested-by: Keith Busch