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Date: Thu, 28 Dec 2017 18:59:09 -0500
From: Alexandru Chirvasitu <achirvasub@gmail.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Dou Liyang <douly.fnst@cn.fujitsu.com>, Pavel Machek <pavel@ucw.cz>,
        kernel list <linux-kernel@vger.kernel.org>,
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        Mihai Costache <v-micos@microsoft.com>,
        Stephen Hemminger <sthemmin@microsoft.com>,
        Marc Zyngier <marc.zyngier@arm.com>, linux-pci@vger.kernel.org,
        Haiyang Zhang <haiyangz@microsoft.com>,
        Dexuan Cui <decui@microsoft.com>, Simon Xiao <sixiao@microsoft.com>,
        Saeed Mahameed <saeedm@mellanox.com>,
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        KY Srinivasan <kys@microsoft.com>
Subject: Re: PROBLEM: 4.15.0-rc3 APIC causes lockups on Core 2 Duo laptop
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On Fri, Dec 29, 2017 at 12:36:37AM +0100, Thomas Gleixner wrote:
> 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?

It does (emailing from that successful boot as we speak). I'm on a
clean 4.15-rc5 (as in no patches, etc.). 

This was also suggested way at the top of this thread by Dexuan Cui
for 4.15-rc3 (where this exchange started), and it worked back then
too.

> 
> Thanks,
> 
> 	tglx