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From:   =?UTF-8?Q?J=C3=B6rg_Otte?= <jrg.otte@gmail.com>
Date:   Tue, 14 Apr 2020 18:32:32 +0200
Message-ID: <CADDKRnAvC7U6kWdiqmib40cJ7r41COyic4LTdO9utsp4GOJnvA@mail.gmail.com>
Subject: Re: Kernel V5.7-rc1 doesn't boot (EFI?)
To:     Ard Biesheuvel <ardb@kernel.org>
Cc:     linux-efi <linux-efi@vger.kernel.org>,
        Arvind Sankar <nivedita@alum.mit.edu>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linus Torvalds <torvalds@linux-foundation.org>
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Am Di., 14. Apr. 2020 um 12:50 Uhr schrieb Ard Biesheuvel <ardb@kernel.org>=
:
>
> On Tue, 14 Apr 2020 at 12:40, J=C3=B6rg Otte <jrg.otte@gmail.com> wrote:
> >
> > Booting my notebook with kernel V57-rc1 I get following
> > display:
> >
> > exit_boot() failed!
> > efi_main() failed!
> > StartImage failed: Buffer Too Small
> >
> > Booting Kernel V5.6 works well.
> >
> > From dmesg (kernel V5.6):
> > efi: EFI v2.31 by Phoenix Technologies Ltd.
> > efi:  ACPI=3D0xdcffe000  ACPI 2.0=3D0xdcffe014  SMBIOS=3D0xdce80000  RN=
G=3D0xdc3cd198
> > efi: seeding entropy pool
> > efi: [Firmware Bug]: Invalid EFI memory map entries:
> > efi: mem47: [Reserved           |   |  |  |  |  |  |  |  |   |  |  |
> > |  ] range=3D[0x0000000000000000-0x0000000000000000] (invalid)
> > efi: mem48: [Reserved           |   |  |  |  |  |  |  |  |   |  |  |
> > |  ] range=3D[0x0000000000000000-0x0000000000000000] (invalid)
> > efi: mem49: [Reserved           |   |  |  |  |  |  |  |  |   |  |  |
> > |  ] range=3D[0x0000000000000000-0x0000000000000000] (invalid)
> > efi: mem50: [Reserved           |   |  |  |  |  |  |  |  |   |  |  |
> > |  ] range=3D[0x0000000000000000-0x0000000000000000] (invalid)
> > efi: mem51: [Reserved           |   |  |  |  |  |  |  |  |   |  |  |
> > |  ] range=3D[0x0000000000000000-0x0000000000000000] (invalid)
> > efi: Removing 5 invalid memory map entries.
> >
>
> Thanks for the report.
>
> Can you try booting with efi=3Dno_disable_early_pci_dma passed via the
> kernel command line? [*]
>
Yes, that works!

> If that does not help, can you try to reproduce with this branch?
>
> https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/log/?h=3Defi/=
urgent

Should I give that branch a try anyway?

Thanks, J=C3=B6rg