[Issue] EFI runtime-wrapper is broken

[Ard Biesheuvel]

On Fri, 28 Oct 2022 at 11:38, Gavin Shan <gshan at redhat.com> wrote:
>
> Hi Ard,
>
> On 10/28/22 5:21 PM, Ard Biesheuvel wrote:
> > On Fri, 28 Oct 2022 at 11:10, Gavin Shan <gshan at redhat.com> wrote:
> >> I ran into the following crash with v6.1.rc2. I'm not sure if it's known
> >> issue. Last good version is v6.0.rc6/rc7. The kernel configuration is attached.
> >
> > This is probably related to the patch below. It means the firmware is
> > buggy, and does not work as it should if the firmware never calls
> > SetVirtualAddressMap() [and doing so is explicitly described as
> > OPTIONAL by the EFI specification].
> >
> > The problem here is that other EFI implementations (primarily the
> > Qualcomm ones used on Windows-on-ARM laptops) are buggy too, and don't
> > tolerate SetVirtualAddressMap().
> >
> > Can you try whether reverting the patch below helps?
> >
>
> I ran into the issue on server, equipped with Ampere CPUs. With d3549a938b73
> reverted, the crash disappeared.
>

Thanks for confirming

Can you please share the complete boot log and the DMI/SMBIOS data? Thanks.