Re: [kaiser-discuss] KPTI backport to 3.16

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On Mon, 2018-01-08 at 10:05 +0100, Yves-Alexis Perez wrote:
> On Mon, 2018-01-08 at 03:25 +0000, Ben Hutchings wrote:
> > This is with the full patch set applied (and a fix for NMI handling
> > that wasn't in 3.16.53-rc1):
> > https://www.decadent.org.uk/ben/tmp/linux-image-3.16.52_3.16.52-50_amd64.deb
> 
> Hi Ben (and others)
> 
> I tried this on a ThinkPad X230 (Ivy Bridge CPU, i7 3520M, so pcid but not
> invpcid) on full UEFI mode and it doesn't boot at all. grub-efi loads the
> kernel and initrd, but I don't have any message after “Loading initial
> ramdisk” (even with debug earlyprintk=vga).

If you boot with EFI you need to use earlyprintk=efi.

Ben.

> I've also tried with nopcid/pcid=no but it doesn't change anything.
> 
> I've tried maxcpus=1 and it does work so maybe backporting 375074cc736a could
> help (I can take a look today).
> 
> Regards,
-- 
Ben Hutchings
This sentence contradicts itself - no actually it doesn't.

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