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SubjectRe: 4.17.x won't boot due to "x86/boot/compressed/64: Handle 5-level paging boot if kernel is above 4G"
On Tue, Jul 03, 2018 at 01:24:49PM +0200, Gabriel C wrote:
> 2018-07-01 23:32 GMT+02:00 Benjamin Gilbert <bgilbert@redhat.com>:
> > 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.
> >
>
> Also see https://bugzilla.kernel.org/show_bug.cgi?id=200385 ,
>
> 0a1756bd2897951c03c1cb671bdfd40729ac2177 is acting up
> too with the same symptoms

I tracked it down to -flto in LDFLAGS. I'll look more into this.

--
Kirill A. Shutemov

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