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

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Message-ID: <20180701213243.GA20180@trogon.sfo.coreos.systems>
Date:   Sun, 1 Jul 2018 17:32:43 -0400
From:   Benjamin Gilbert <bgilbert@...hat.com>
To:     linux-x86_64@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org
Subject: Re: 4.17.x won't boot due to "x86/boot/compressed/64: Handle 5-level
 paging boot if kernel is above 4G"

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

Download attachment "config.gz" of type "application/gzip" (29798 bytes)