Description of problem: After upgrading to the latest Fedora 33, mustang fails to boot with the error error: ../../grub-core/loader/arm64/linux.c:81:failed to load FDT None of the previous working kernels boot either. Booting with debugging the last messages: kern/efi/fdt.c:38: found registered FDT @ 0x43fd2c5000 loader/efi/fdt.c:65: allocating 26028 bytes for fdt kern/efi/mm.c:173: allocate_pages(1, 9, 0x7, 0x0000ffffffffffff) = 0x800000000000000e "error: ../../grub-core/loader/arm64/linux.c:81:failed to load FDT." From https://github.com/rhboot/grub2/blob/fedora-33/grub-core/kern/efi/mm.c#L173 Version-Release number of selected component (if applicable): grub2-2.06~rc1-2.fc33 How reproducible: Almost always.
(In reply to Paul Whalen from comment #0) [snip] > kern/efi/mm.c:173: allocate_pages(1, 9, 0x7, 0x0000ffffffffffff) = 0x800000000000000e This is the key debug message, this is: kern/efi/mm.c:173: allocate_pages(GRUB_EFI_ALLOCATE_MAX_ADDRESS, GRUB_EFI_ACPI_RECLAIM_MEMORY, 0x7, 0x0000ffffffffffff) = GRUB_EFI_NOT_FOUND according to the "Unified Extensible Firmware Interface (UEFI) Specification, Version 2.9, March 2021" in the "EFI_BOOT_SERVICES.AllocatePages()" section, this error message means: "EFI_NOT_FOUND: The requested pages could not be found." Now, I don't know if in this case is GRUB that's not choosing the correct Type, MemoryType and address for the pages allocation or is the firmware to blame here that's not able to fulfill the allocation requested by GRUB.
> kern/efi/mm.c:173: allocate_pages(GRUB_EFI_ALLOCATE_MAX_ADDRESS, > GRUB_EFI_ACPI_RECLAIM_MEMORY, 0x7, 0x0000ffffffffffff) = GRUB_EFI_NOT_FOUND > > according to the "Unified Extensible Firmware Interface (UEFI) Specification, > Version 2.9, March 2021" in the "EFI_BOOT_SERVICES.AllocatePages()" section, > this error message means: > > "EFI_NOT_FOUND: The requested pages could not be found." > > Now, I don't know if in this case is GRUB that's not choosing the correct > Type, MemoryType > and address for the pages allocation or is the firmware to blame here that's > not able to > fulfill the allocation requested by GRUB. I'm guessing the DT blob might be put into memory in the wrong location, or the wrong memory address is passed or labeled incorrectly, by the firmware, AKA likely U-Boot
I have also hit this, also on mustang, after update to the latest of f33. For me it seems to be always reproducible. I haven't been able to boot that system since the update.
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Moving to das uboot per #c2.
(In reply to Robbie Harwood from comment #7) > Moving to das uboot per #c2. Actually this isn't U-Boot as mustang doesn't use U-Boot. Although I believe it may now be fixed. Paul can you confirm?
(In reply to Peter Robinson from comment #8) > (In reply to Robbie Harwood from comment #7) > > Moving to das uboot per #c2. > > Actually this isn't U-Boot as mustang doesn't use U-Boot. Although I believe > it may now be fixed. Paul can you confirm? Yes, no longer seeing this on any of the mustangs. Closing.