On Tue, 14 Jan 2025 at 09:31, Xu, Min M <min.m...@intel.com> wrote:
>
> On Tuesday, January 14, 2025 4:22 PM, Ard Biesheuvel wrote:
> >
> > On Tue, 14 Jan 2025 at 03:54, Xu, Min M <min.m...@intel.com> wrote:
> > >
> > > Hi, Crystal
> > >
> > > PR#5939 (https://github.com/tianocore/edk2/pull/5939) was merged yesterday
> > but it seems it broke the legacy VM bootup.
> > >
> > >
> > >
> > > Below is the crash log of the failure.
> > >
> >
> > I take it this crash occurs after loading shim?
>
> That's right. It seems in the EDK2 CI, there are only cases of "run to 
> shell". So it is not triggered in CI test.
>

This is a long standing bug in shim, that has been fixed 2 years ago
[0] but the distros keep shipping outdated versions, due to the
reluctance of MS to sign new shim builds.

The solutions are:
- disable the EFI memory attributes protocol altogether.
- ignore the distros so they are forced to clean up their mess.



[0] 
https://github.com/rhboot/shim/commit/c7b305152802c8db688605654f75e1195def9fd6


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