Messages in this thread | | | Subject | Re: Regression: unable to boot after commit bd9240a18edf ("x86/apic: Add TSC_DEADLINE quirk due to errata") - Surface Pro 4 SKL | From | Zhang Rui <> | Date | Wed, 29 Nov 2017 22:44:50 +0800 |
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On Tue, 2017-11-28 at 13:36 +0100, Peter Zijlstra wrote: > 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. > I agree. But however, on this platform, forcing a cpu microcode upgrade after upgrading kernel does not seem like a good solution to users. Thus I still like to dig into the problem further to see if we can workaround this "regression" in software. As the kernel freezes at a very early stage, do you have any advice on how to narrow down the problem?
thanks, rui
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