Re: [PATCH v4 00/10] PCID and improved laziness

[Ingo Molnar]

* Ingo Molnar <mingo@xxxxxxxxxx> wrote:

> 
> * Andy Lutomirski <luto@xxxxxxxxxxxxxx> wrote:
> 
> > I'm on my way to LPC, so I can't  easily work on this right this instant.
> > 
> > Can you try this branch, though?
> > 
> > https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git/commit/?h=x86/fixes&id=cb88ae619b4c3d832d224f2c641849dc02aed864
> 
> Any objections against me applying these fixes directly and getting them to Linus 
> later today, to not widen the window of breakage any further?
> 
> I'll also apply:
> 
>    x86/mm/64: Initialize CR4.PCIDE early

So now that I've looked at the branch, I think I'll apply these three:

  cb88ae619b4c: x86/mm/64: Initialize CR4.PCIDE early
  6ec68017784f: x86/hibernate/64: Mask off CR3's PCID bits in the saved CR3
  5d1298206d7b: x86/mm: Get rid of VM_BUG_ON in switch_tlb_irqs_off()

The first one is that likely fixed the crash that Sai Praneeth Prakhya reported.

Thanks,

	Ingo