On Thu, Aug 15, 2019 at 02:21:26PM +0300, Ard Biesheuvel wrote: > On Thu, 15 Aug 2019 at 14:03, Mark Rutland <mark.rutl...@arm.com> wrote: > > On Thu, Aug 15, 2019 at 05:56:27AM -0400, skodde wrote: > > > Hi, > > > > > > I've enabled CONFIG_GCC_PLUGIN_STACKLEAK on 5.2.8 for an arm64 > > > macchiatobin board and I get the following error when loading the > > > kernel (using grub-efi on top of edk ii): > > > > > > EFI stub: Booting Linux Kernel... > > > EFI stub: ERROR: efi_get_random_bytes() failed > > > EFI stub: ERROR: Failed to relocate kernel > > > > > > The kernel boots fine with that option disabled, but strangely > > > presents the same error when disabling only CONFIG_RANDOMIZE_BASE. > > > > That shouldn't be possible, given the IS_ENABLED(CONFIG_RANDOMIZE_BASE) > > guard around the efi_get_random_bytes() call, so something sounds wrong. > > > > Are you certain that you're running the same kernel Image that you > > rebuilt? > > > > Ard, do you reckon it would be worth adding the UTS_RELEASE and > > UTS_VERSION to the " Booting Linux Kernel..." string? It would make > > debugging that potential issue easier. > > Use of the UTS_xxx macros already triggers an annoying number of > object rebuilds every time you change anything entirely unrelated in > your kernel sources, so I'd prefer to avoid this tbh.
Fair enough; saves me writing a patch! :) Mark.