On Thu, Sep 04, 2025 at 04:29:52PM -0700, Nathan Chancellor wrote:
> Does your QEMU boot via UEFI? This configuration has
>
> # CONFIG_EFI is not set
>
> so if I try to boot QEMU via OVMF, I get:
>
> BdsDxe: failed to load Boot0002 "UEFI Non-Block Boot Device" from VenMedia(1428F772-B64A-441E-B8C3-9EBDD7F893C7): Not Found
> BdsDxe: No bootable option or device was found.
> BdsDxe: Press any key to enter the Boot Manager Menu.
>
> Turning on CONFIG_EFI and CONFIG_EFI_STUB is enough for me to boot this
> configuration.
Yeah, I'm blindly following the testing instructions because I'm being
a guinea pig for the testing folks. :-)
Looks like those instructions need massaging.
> Looks like this configuration has
>
> CONFIG_LTO_CLANG_FULL=y
>
> so that's not too surprising :) turning that off or making it
>
> CONFIG_LTO_CLANG_THIN=y
>
> should be much quicker.
Yeah, I hear there might be some more room for improvements in parallelizing
more of the LTO work but I dunno - just rumours :-P
> I ran 200 boots using our simple Buildroot initrd and QEMU wrapper
> script [1] and saw no issues, however...
Yeah, that's a nicely debugged issue - I think you should simply send a proper
patch.
Thanks!
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
