Re: 4.17.x won't boot due to "x86/boot/compressed/64: Handle 5-level paging boot if kernel is above 4G"

From: Benjamin Gilbert
Date: Sun Jul 01 2018 - 17:32:59 EST


On Sun, Jul 01, 2018 at 05:15:59PM -0400, Benjamin Gilbert wrote:
> 4.17 kernels built with the CoreOS Container Linux toolchain and kconfig,
> up to and including 4.17.3, fail to boot on AMD64 running in (at least)
> QEMU/KVM. No messages are shown post-GRUB; the VM instantly reboots.
> Reverting commit 194a9749c73d ("x86/boot/compressed/64: Handle 5-level
> paging boot if kernel is above 4G") fixes it. I've attached our kernel
> config for reference, and am happy to test patches, provide sample QCOW
> images, etc.

Adding linux-x86_64, LKML.

--Benjamin Gilbert

Attachment: config.gz
Description: application/gzip