linux-kernel - Re: [PATCH] x86/boot/compressed: Exclude 'top

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Date:   Thu, 21 Jun 2018 18:27:25 +0300
From:   "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     Hugh Dickins <hughd@...gle.com>,
        "Kirill A. Shutemov" <kirill@...temov.name>,
        Ingo Molnar <mingo@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        "H. Peter Anvin" <hpa@...or.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        linux-kernel@...r.kernel.org, x86@...nel.org
Subject: Re: [PATCH] x86/boot/compressed: Exclude 'top_pgtable' from
 relocation

On Thu, Jun 21, 2018 at 03:18:05PM +0000, Ingo Molnar wrote:
> 
> * Hugh Dickins <hughd@...gle.com> wrote:
> 
> > On Thu, 3 May 2018, Kirill A. Shutemov wrote:
> > 
> > > On Thu, May 03, 2018 at 08:38:49AM +0000, Kirill A. Shutemov wrote:
> > > > The patch is bogus and I still don't understand what is going on.
> > > 
> > > I think I found the issue. Could you check the patch below:
> > 
> > Sorry, no good on either machine, immediate reboot as before.
> > I'm gathering the info you asked, will send privately in an hour or so.
> 
> Hi, any update on this bug?
> 
> Kirill: mind (re-)sending a series of any resulting patches that you have pending?
> 
> If there's no fix, is there any list of SHA1's to revert?

The root cause of the bug was fixed in v4.17 by

  5c9b0b1c4988 ("x86/boot/compressed/64: Set up GOT for paging_prepare() and cleanup_trampoline()").

The only pending patch I have at the moment is

http://lkml.kernel.org/r/20180612103657.18041-1-kirill.shutemov@linux.intel.com

Do you want me to resend it again?

-- 
 Kirill A. Shutemov