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Date:   Tue, 25 Jun 2019 08:24:01 +0200 (CEST)
From:   Thomas Gleixner <tglx@linutronix.de>
To:     Rong Chen <rong.a.chen@intel.com>
cc:     LKML <linux-kernel@vger.kernel.org>,
        Ingo Molnar <mingo@kernel.org>,
        "H. Peter Anvin" <hpa@zytor.com>, tipbuild@zytor.com, lkp@01.org
Subject: Re: [x86/hotplug] e1056a25da:
 WARNING:at_arch/x86/kernel/apic/apic.c:#setup_local_APIC
In-Reply-To: <58ea508f-dc2e-8537-fe96-49cca0a7c799@intel.com>
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References: <20190620021856.GP7221@shao2-debian> <alpine.DEB.2.21.1906212108150.5503@nanos.tec.linutronix.de> <58ea508f-dc2e-8537-fe96-49cca0a7c799@intel.com>
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Rong,

On Tue, 25 Jun 2019, Rong Chen wrote:
> On 6/22/19 3:08 AM, Thomas Gleixner wrote:
> > > 
> > > on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m
> > > 2G
> > I cannot reproduce that issue. What's the underlying hardware machine?
> 
> brand: Genuine Intel(R) CPU 000 @ 2.27GHz
> model: Westmere-EX
> memory: 256G
> nr_node: 4
> nr_cpu: 80

Ok. I'll try to find something similar. Can please you rerun that test on
that particular configuration with the updated branch?

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.x86/ipi

please?

Thanks,

	tglx