Re: Regression: unable to boot after commit bd9240a18edf ("x86/apic: Add TSC_DEADLINE quirk due to errata") - Surface Pro 4 SKL

From: Peter Zijlstra
Date: Tue Nov 28 2017 - 07:36:17 EST


On Tue, Nov 28, 2017 at 06:59:01PM +0800, Zhang Rui wrote:
> > > > > My Surface Pro 4 is unable to boot after 4.12. The symptom is

> yes. Tried 4.4 distro and 4.12 vanilla kernel, kernel always freezes
> with boot option "notscdeadline"/"lapic=notscdeadline".

Then for some mysterious reason, your Surface thing has a borked LAPIC.

No idea how or why..