Re: [x86/hotplug] e1056a25da: WARNING:at_arch/x86/kernel/apic/apic.c:#setup_local_APIC

[Rong Chen]

On 6/22/19 3:08 AM, Thomas Gleixner wrote:
> On Thu, 20 Jun 2019, kernel test robot wrote:
>
> > FYI, we noticed the following commit (built with gcc-7):
> >
> > commit: e1056a25daa6460c95e92d7d6853d05ad62458f7 ("x86/hotplug: Silence APIC and NMI when CPU is dead")
> > https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git WIP.x86/ipi
> >
> > in testcase: locktorture
> > with following parameters:
> >
> > 	runtime: 300s
> > 	test: cpuhotplug
> >
> > test-description: This torture test consists of creating a number of kernel threads which acquire the lock and hold it for specific amount of time, thus simulating different critical region behaviors.
> > test-url: https://www.kernel.org/doc/Documentation/locking/locktorture.txt
> >
> >
> > 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

Best Regards,
Rong Chen


> Thanks,
>
> 	tglx