On Thu, Feb 11, 2021 at 3:44 PM Vitaly Chikunov <vt@xxxxxxxxxxxx> wrote: > > Hi, > > We have boot test using OVMF/AAVMF EFI firmware on aarch64 in qemu. When > we try to build kernel with `CONFIG_DEBUG_INFO_BTF=y' (pahole v1.20) > previously successful EFI boot test fails with: > > EFI stub: ERROR: Failed to relocate kernel > EFI stub: ERROR: Failed to relocate kernel > > Without EFI it boots normally. On other our architectures (such as > arm32, i586, powerpc, x86_64) it boots normally too (all without EFI > boot, but x86_64 is also successfully tested with OVMF EFI boot). So this seems like an arm64-specific issue? Is it possible to get any help from someone familiar with arm64 specifics to find out what exactly causes this problem? We use `pahole -J` to "implant" .BTF into vmlinux.o, but later rely on vmlinux loader scripts to have a loadable .BTF section. The problem might happen somewhere along those steps. I don't think I can be of much help here without a bit more information (and seems like no one else on this list came up with any suggestions as well). > > This is tested on 5.4.97, but I can try 5.10.15 if needed. > > Thanks, >
