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

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Date:   Fri, 29 Dec 2017 00:36:37 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Alexandru Chirvasitu <achirvasub@...il.com>
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

On Thu, 28 Dec 2017, Alexandru Chirvasitu wrote:

> Attached, but heads up on this: when redirecting the output of lspci
> -vvv to a text file as root I get
> 
> pcilib: sysfs_read_vpd: read failed: Input/output error
> 
> I can find bugs filed for various distros to this same effect, but
> haven't tracked down any explanations.

Weird, but the info looks complete.

Can you please add 'pci=nomsi' to the 4.15 kernel command line and see
whether that works?

Thanks,

	tglx