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SubjectRe: Linux 5.3-rc7
On Sat, 7 Sep 2019, Chris Wilson wrote:
> Quoting Linus Torvalds (2019-09-02 18:28:26)
> > Bandan Das:
> > x86/apic: Include the LDR when clearing out APIC registers
>
> Apologies if this is known already, I'm way behind on email.
>
> I've bisected
>
> [ 18.693846] smpboot: CPU 0 is now offline
> [ 19.707737] smpboot: Booting Node 0 Processor 0 APIC 0x0
> [ 29.707602] smpboot: do_boot_cpu failed(-1) to wakeup CPU#0
>
> https://intel-gfx-ci.01.org/tree/drm-tip/igt@perf_pmu@cpu-hotplug.html
>
> to 558682b52919. (Reverts cleanly and fixes the problem.)
>
> I'm guessing that this is also behind the suspend failures, missing
> /dev/cpu/0/msr, and random perf_event_open() failures we have observed
> in our CI since -rc7 across all generations of Intel cpus.

So is this on bare metal or in a VM?

Thanks,

tglx

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