From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1754216AbdL1UPG (ORCPT <rfc822;w@1wt.eu>);
        Thu, 28 Dec 2017 15:15:06 -0500
Received: from Galois.linutronix.de ([146.0.238.70]:33272 "EHLO
        Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S1751296AbdL1UPC (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Thu, 28 Dec 2017 15:15:02 -0500
Date: Thu, 28 Dec 2017 21:14:54 +0100 (CET)
From: Thomas Gleixner <tglx@linutronix.de>
To: Dexuan Cui <decui@microsoft.com>
cc: Alexandru Chirvasitu <achirvasub@gmail.com>,
        Dou Liyang <douly.fnst@cn.fujitsu.com>, Pavel Machek <pavel@ucw.cz>,
        kernel list <linux-kernel@vger.kernel.org>,
        Ingo Molnar <mingo@redhat.com>,
        "Maciej W. Rozycki" <macro@linux-mips.org>,
        Mikael Pettersson <mikpelinux@gmail.com>,
        Josh Poulson <jopoulso@microsoft.com>,
        "Mihai Costache (Cloudbase Solutions SRL)" <v-micos@microsoft.com>,
        Stephen Hemminger <sthemmin@microsoft.com>,
        Marc Zyngier <marc.zyngier@arm.com>,
        "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
        Haiyang Zhang <haiyangz@microsoft.com>,
        Simon Xiao <sixiao@microsoft.com>,
        Saeed Mahameed <saeedm@mellanox.com>,
        Jork Loeser <Jork.Loeser@microsoft.com>,
        Bjorn Helgaas <bhelgaas@google.com>,
        "devel@linuxdriverproject.org" <devel@linuxdriverproject.org>,
        KY Srinivasan <kys@microsoft.com>
Subject: RE: PROBLEM: 4.15.0-rc3 APIC causes lockups on Core 2 Duo laptop
In-Reply-To: <KL1P15301MB00063D165782C59828A0C2F1BF040@KL1P15301MB0006.APCP153.PROD.OUTLOOK.COM>
Message-ID: <alpine.DEB.2.20.1712282113380.1899@nanos>
References: <20171218082011.GA24638@arch-chirva.localdomain> <20171218101131.GA5338@amd> <20171219083421.GB24638@arch-chirva.localdomain> <alpine.DEB.2.20.1712200124440.2282@nanos> <ec3a298b-27a3-f3fe-ea8d-a777669104ba@cn.fujitsu.com>
 <20171220131929.GC24638@arch-chirva.localdomain> <alpine.DEB.2.20.1712281201210.1688@nanos> <KL1P15301MB00063D165782C59828A0C2F1BF040@KL1P15301MB0006.APCP153.PROD.OUTLOOK.COM>
User-Agent: Alpine 2.20 (DEB 67 2015-01-07)
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
X-Linutronix-Spam-Score: -1.0
X-Linutronix-Spam-Level: -
X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required,  ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Thu, 28 Dec 2017, Dexuan Cui wrote:

> > From: Thomas Gleixner [mailto:tglx@linutronix.de]
> > Sent: Thursday, December 28, 2017 03:03
> > > > On Wed, Dec 20, 2017 at 02:12:05AM +0000, Dexuan Cui wrote:
> > 
> > > > For Linux VM running on Hyper-V, we did get "spurious APIC interrupt
> > > > through vector " and a patchset, which included the patch you identifed
> > > > ("genirq: Add config option for reservation mode"), was made to fix the
> > > > issue. But since you're using a physical machine rathter than a VM, I
> > > > suspect it should be a different issue.
> > 
> > Aaargh! Why was this never reported and where is that magic patchset?
> > 	tglx
> 
> Hi Thomas,
> The Hyper-V specific issue was reported and you made a patchset to fix it:
> https://patchwork.kernel.org/patch/10006171/
> https://lkml.org/lkml/2017/10/17/120

Ah, ok. I did not make the connection. I'll have a scan through the tree to
figure out whether there is some other weird place which is missing that.

Thanks,

	tglx