linux-kernel - Re: Kernel V5.7-rc1 doesn't boot (EFI?)

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: <CAMj1kXEDJ67oJJjKtDC--VXmr+z8-voPhHnRnaMCEfo5Pc6Sqg@mail.gmail.com>
Date:   Tue, 14 Apr 2020 18:35:43 +0200
From:   Ard Biesheuvel <ardb@...nel.org>
To:     Jörg Otte <jrg.otte@...il.com>
Cc:     linux-efi <linux-efi@...r.kernel.org>,
        Arvind Sankar <nivedita@...m.mit.edu>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: Kernel V5.7-rc1 doesn't boot (EFI?)

On Tue, 14 Apr 2020 at 18:32, Jörg Otte <jrg.otte@...il.com> wrote:
>
> Am Di., 14. Apr. 2020 um 12:50 Uhr schrieb Ard Biesheuvel <ardb@...nel.org>:
> >
> > On Tue, 14 Apr 2020 at 12:40, Jörg Otte <jrg.otte@...il.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=0xdcffe000  ACPI 2.0=0xdcffe014  SMBIOS=0xdce80000  RNG=0xdc3cd198
> > > efi: seeding entropy pool
> > > efi: [Firmware Bug]: Invalid EFI memory map entries:
> > > efi: mem47: [Reserved           |   |  |  |  |  |  |  |  |   |  |  |
> > > |  ] range=[0x0000000000000000-0x0000000000000000] (invalid)
> > > efi: mem48: [Reserved           |   |  |  |  |  |  |  |  |   |  |  |
> > > |  ] range=[0x0000000000000000-0x0000000000000000] (invalid)
> > > efi: mem49: [Reserved           |   |  |  |  |  |  |  |  |   |  |  |
> > > |  ] range=[0x0000000000000000-0x0000000000000000] (invalid)
> > > efi: mem50: [Reserved           |   |  |  |  |  |  |  |  |   |  |  |
> > > |  ] range=[0x0000000000000000-0x0000000000000000] (invalid)
> > > efi: mem51: [Reserved           |   |  |  |  |  |  |  |  |   |  |  |
> > > |  ] range=[0x0000000000000000-0x0000000000000000] (invalid)
> > > efi: Removing 5 invalid memory map entries.
> > >
> >
> > Thanks for the report.
> >
> > Can you try booting with efi=no_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=efi/urgent
>
> Should I give that branch a try anyway?
>

Your test proves that BSS is not being cleared correctly, so I have
the answer I was looking for. However, I would appreciate it if you
could test that branch, just to double check.

Thanks,
Ard.