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

From: Thomas Gleixner <tglx@linutronix.de>
To: Alexandru Chirvasitu <achirvasub@gmail.com>
Cc: 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 <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>,
	Jork Loeser <Jork.Loeser@microsoft.com>,
	Bjorn Helgaas <bhelgaas@google.com>,
	devel@linuxdriverproject.org, KY Srinivasan <kys@microsoft.com>
Subject: Re: PROBLEM: 4.15.0-rc3 APIC causes lockups on Core 2 Duo laptop
Date: Thu, 28 Dec 2017 22:54:25 +0100 (CET)	[thread overview]
Message-ID: <alpine.DEB.2.20.1712282253180.1899@nanos> (raw)
In-Reply-To: <alpine.DEB.2.20.1712281930590.1899@nanos>

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