* Ard Biesheuvel <ardb@xxxxxxxxxx> wrote: > On Tue, 14 Apr 2020 at 18:32, Jörg Otte <jrg.otte@xxxxxxxxx> wrote: > > > > Am Di., 14. Apr. 2020 um 12:50 Uhr schrieb Ard Biesheuvel <ardb@xxxxxxxxxx>: > > > > > > On Tue, 14 Apr 2020 at 12:40, Jörg Otte <jrg.otte@xxxxxxxxx> 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. I'll send efi/urgent to Linus within the next couple of hours, to get the fix to Linus: 105cb9544b16: ("efi/x86: Move efi stub globals from .bss to .data") Thanks, Ingo
