Hello! It seems as a recent change has caused a regression on Itanium (ia64), rendering the platform unbootable. GRUB will crash very early with:
``` Welcome to GRUB! 7 0 0x00006B 0x000000000000001E unexpected trap 7 0 0x000066 0x000000000000001E trap taken, number in ext PE 7 0 0x00003C 0x0000000000005A00 trap taken, offset in ext PE ``` I have bisected the issue and it resulted into the following change: ``` 06edd40db76bb78457ac26156ed5f7b62381bbe8 is the first bad commit commit 06edd40db76bb78457ac26156ed5f7b62381bbe8 Author: Oliver Steffen <ostef...@redhat.com> Date: Fri May 26 13:35:43 2023 +0200 guid: Unify GUID types There are 3 implementations of a GUID in GRUB. Replace them with a common one, placed in types.h. It uses the "packed" flavor of the GUID structs, the alignment attribute is dropped, since it is not required. Signed-off-by: Oliver Steffen <ostef...@redhat.com> Reviewed-by: Daniel Kiper <daniel.ki...@oracle.com> ``` The issue is most likely related with an unaligned memory access exception resulting from may global GUID variables being changed from `grub_efi_guid_t` (which are decorated with `__attribute__ ((aligned(8)))`) to the new and unified `grub_guid_t` type (now decorated with `__attribute__ ((packed))`). Do you concur? Pedro