linux-kernel - Re: [Regression?] Linux 5.19-rc5 gets stuck on boot, not rc4

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Date:   Thu, 7 Jul 2022 09:54:26 +0200 (CEST)
From:   torvic9@...lbox.org
To:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Thorsten Leemhuis <regressions@...mhuis.info>
Cc:     "Limonciello, Mario" <Mario.Limonciello@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "platform-driver-x86@...r.kernel.org" 
        <platform-driver-x86@...r.kernel.org>,
        Hans de Goede <hdegoede@...hat.com>,
        Jani Nikula <jani.nikula@...el.com>
Subject: Re: [Regression?] Linux 5.19-rc5 gets stuck on boot, not rc4


> Linus Torvalds <torvalds@...ux-foundation.org> hat am 06.07.2022 18:59 GMT geschrieben:
> 
>  
> On Wed, Jul 6, 2022 at 11:21 AM Thorsten Leemhuis
> <regressions@...mhuis.info> wrote:
> >
> > Wild guess, I'm not involved at all in any of the following, I just
> > noticed it and thought it might be worth mentioning:
> >
> > I heard Fedora rawhide added this patch to solve a boot problem that
> > sounded similar to yours:
> > https://patchwork.freedesktop.org/patch/489982/
> 
> Yes, this looks likely, and matches that "starts in 5.19-rc5" since
> the offending commit came in as
> 
>   ee7a69aa38d8 ("fbdev: Disable sysfb device registration when
> removing conflicting FBs")
> 
> so that does look like a likely cause.
> 

I confirm that applying
  "drm/aperture: Run fbdev removal before internal helpers"
on top of rc5 solves this issue, computer boots normally again.
I suppose this commit will be cherry-picked for rc6.

Thanks to all!
Tor

>               Linus