On Tue, Nov 28, 2017 at 10:08:53AM +0800, Zhang Rui wrote: > Hi, All, > > My Surface Pro 4 is unable to boot after 4.12. The symptom is that > kernel freezes during boot, and the last message in the screen is > loading the initrd image. And I have bisected it to this commit
> +// DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_SKYLAKE_MOBILE, 0xb2), And what microcode version do you run? Have you installed the latest microcode package and updated your initrd to include it? My skylake is running 0xba.