> > it's the first commit in the branch in fact. > > To double check, it would be nice to check that applying that commit to v4.4 > breaks the boot too: > > git checkout v4.4 > git cherry-pick 21cdb6b568 > This actually boots. i.e cherry-pick 21cdb6b568 on top of v4.4 boots well. Next I kept on adding cherry-picks from tip/x86/efi git log --oneline tip/x86/efi looked like this e2c90dd x86/efi-bgrt: Replace early_memremap() with memremap() 98f9127 Merge tag 'efi-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi into x86/efi 50a0cb5 x86/efi-bgrt: Fix kernel panic when mapping BGRT data 26d7f65 x86/efi: Preface all print statements with efi* tag 3bb9eee doc: efi-stub.txt: Fix arm64 paths 7f83773 efi/esrt: Don't preformat name ff3d0a1 Documentation/x86: Update EFI memory region description 67a9108 x86/efi: Build our own page table structures c9f2a9a x86/efi: Hoist page table switching code into efi_call_virt() b61a76f x86/efi: Map RAM into the identity page table for mixed mode edc3b91 x86/mm/pat: Ensure cpa->pfn only contains page frame numbers 21cdb6b x86/mm: Page align the '_end' symbol to avoid pfn conversion bugs So when I cherry-pick 67a9108 "x86/efi: Build our own page table structures", the built kernel stops booting. i.e until until I cherry-pick c9f2a9a, the kernel boots. I still have to verify why git bisect was failing to give the right commit. Attached the dmesg of a good kernel boot as requested by Matt. -- Thanks and Regards Srikar > ... but assuming the bisection is reliable, I'd say the evidence is pretty > conclusive already. > > Srikar, could you please send the good and bad System.map files, so that we see > what the effects of the aligning were? The two interesting sha1's to test are: > > 21cdb6b56843: first bad commit > 6ffeba960734: last good commit (parent commit of 21cdb6b56843) > > Thanks, > > Ingo > -- Thanks and Regards Srikar Dronamraju
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