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 17:50:14 -0500
From:   Alexandru Chirvasitu <achirvasub@...il.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     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 <v-micos@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Marc Zyngier <marc.zyngier@....com>, linux-pci@...r.kernel.org,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Dexuan Cui <decui@...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, KY Srinivasan <kys@...rosoft.com>
Subject: Re: PROBLEM: 4.15.0-rc3 APIC causes lockups on Core 2 Duo laptop

Attached.

I don't have a 4.14 family kernel available at the moment on that
machine. What I'm attaching comes from the 4.13 one I was playing with
yesterday, what with kexec and all.

On Thu, Dec 28, 2017 at 10:54:25PM +0100, Thomas Gleixner wrote:
> On Thu, 28 Dec 2017, Thomas Gleixner wrote:
> > On Thu, 28 Dec 2017, Alexandru Chirvasitu wrote:
> > 
> > > No; it seems to be tied to this specific issue, and I was seeing even
> > > before getting logs just now, whenever I'd start one of the bad
> > > kernels in recovery mode.
> > > 
> > > But no, I've never seen that in any other logs, or on any other
> > > screens outside of those popping up in relation to this problem.
> > 
> > Ok. I'll dig into it and we have a 100% reproducer reported by someone else
> > now, which might give us simpler insight into that issue. I'll let you know
> > once I have something to test. Might be a couple of days though.
> 
> Can you please provide the output of
> 
>     lspci -vvv
> 
> from a working kernel, preferrably 4.14.y
> 
> Thanks,
> 
> 	tglx

View attachment "lspci-4.13" of type "text/plain" (13708 bytes)