On Fri, 3 Sept 2021 at 00:26, Víctor Gonzalo <victor.gonzalo@xxxxxxxxxxxxxxxx> wrote: > > Hello > > I had an issue in a big server in which no linux distro I tried was > able to boot. It failed with the messages: > > EFI stub: ERROR: exit_boot() failed! > EFI stub: ERROR: efi_main() failed! > > Digging through the rabbit hole I reached the error in the call to > efi_bs_call(get_memory_map) inside efi_exit_boot_services() in > efi-stub-helper.c which returned EFI_BUFFER_TOO_SMALL, so everything > collapsed after that. > > It looks like despite what the comment suggests, the headroom was not enough. > I fixed it by increasing the value of EFI_MMAP_NR_SLACK_SLOTS to 16. > > Is this the right approach to fix the issue? > Would it be ok to change the value in the mainline? > I don't think changing that would be a problem. Patches welcome.
