linux-kernel - Re: [tip: x86/urgent] x86/setup: Call early_reserve

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Date:   Sun, 19 Sep 2021 19:15:30 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Mike Galbraith <efault@....de>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     linux-kernel@...r.kernel.org, linux-tip-commits@...r.kernel.org,
        marmarek@...isiblethingslab.com, Juergen Gross <jgross@...e.com>,
        Borislav Petkov <bp@...e.de>,
        Mike Rapoport <rppt@...ux.ibm.com>, stable@...r.kernel.org,
        x86@...nel.org
Subject: Re: [tip: x86/urgent] x86/setup: Call early_reserve_memory() earlier

On Sun, Sep 19, 2021 at 06:55:16PM +0200, Mike Galbraith wrote:
> On Thu, 2021-09-16 at 10:50 +0000, tip-bot2 for Juergen Gross wrote:
> > The following commit has been merged into the x86/urgent branch of
> > tip:
> >
> > Commit-ID:     1c1046581f1a3809e075669a3df0191869d96dd1
> > Gitweb:       
> > https://git.kernel.org/tip/1c1046581f1a3809e075669a3df0191869d96dd1
> > Author:        Juergen Gross <jgross@...e.com>
> > AuthorDate:    Tue, 14 Sep 2021 11:41:08 +02:00
> > Committer:     Borislav Petkov <bp@...e.de>
> > CommitterDate: Thu, 16 Sep 2021 12:38:05 +02:00
> >
> > x86/setup: Call early_reserve_memory() earlier
> 
> This commit rendered tip toxic to my i4790 desktop box and i5-6200U
> lappy.  Boot for both is instantly over without so much as a twitch.
> 
> Post bisect revert made both all better.

I had a suspicion that moving stuff around like that would not just
simply work in all cases, as our boot order is very lovely and fragile.

And it booted just fine on my machines here.

;-\

Anyway, commit zapped from the x86/urgent lineup. We'll have to have a
third try later.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette