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"

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAEJqkghSELJRq7r_OrKvixxnT-rUncV==Ej1+jfYZvkMHz=o_w@mail.gmail.com>
Date:   Tue, 3 Jul 2018 13:24:49 +0200
From:   Gabriel C <nix.or.die@...il.com>
To:     Benjamin Gilbert <bgilbert@...hat.com>
Cc:     linux-x86_64@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
        "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 ML <x86@...nel.org>,
        bero@...dev.ch
Subject: Re: 4.17.x won't boot due to "x86/boot/compressed/64: Handle 5-level
 paging boot if kernel is above 4G"

2018-07-01 23:32 GMT+02:00 Benjamin Gilbert <bgilbert@...hat.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

BR