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

[Thomas Gleixner]

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?

Thanks,

	tglx