linux-kernel - RE: PROBLEM: 4.15.0-rc3 APIC causes lockups on Core 2 Duo laptop

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Date:   Thu, 28 Dec 2017 21:14:54 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Dexuan Cui <decui@...rosoft.com>
cc:     Alexandru Chirvasitu <achirvasub@...il.com>,
        Dou Liyang <douly.fnst@...fujitsu.com>,
        Pavel Machek <pavel@....cz>,
        kernel list <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...hat.com>,
        "Maciej W. Rozycki" <macro@...ux-mips.org>,
        Mikael Pettersson <mikpelinux@...il.com>,
        Josh Poulson <jopoulso@...rosoft.com>,
        "Mihai Costache (Cloudbase Solutions SRL)" <v-micos@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Marc Zyngier <marc.zyngier@....com>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Simon Xiao <sixiao@...rosoft.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        Jork Loeser <Jork.Loeser@...rosoft.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        "devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
        KY Srinivasan <kys@...rosoft.com>
Subject: RE: PROBLEM: 4.15.0-rc3 APIC causes lockups on Core 2 Duo laptop

On Thu, 28 Dec 2017, Dexuan Cui wrote:

> > From: Thomas Gleixner [mailto:tglx@...utronix.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