------- Comment From daniel.axte...@ibm.com 2020-11-25 06:47 EDT------- Hi,
Thanks, I'll look at sources tarball, hopefully tomorrow. (I'm in AU, so no thanksgiving here!) Have you tested this on any of your local systems? I can't get it to work much on P9, even on stock hardware/qemu without any secure-boot features. Indeed, it even fails on qemu TCG (so you don't actually need a Power system at all!): qemu-system-ppc64 -M pseries -m 1G -nographic -vga none -smp 4 -cpu power9 -kernel dbg/usr/lib/debug/boot/vmlinux-5.10.0-4-generic Actually, the failure matrix is really interesting: Power8 host + KVM + grub -> boots Power9 host bare metal (kexec) -> fails Power9 host + KVM + grub -> fails Power9 host + KVM + qemu -kernel -> boots qemu TCG + power9 cpu -> fails qemu TCG + power8 cpu -> fails I'm assuming the tarball includes the debian/patches directory, in which case it should be easy to apply and git bisect. Kind regards, Daniel (IBMers: is there someone outside the security team that we should pull in? It doesn't seem at all to be a security-related issue.) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1904906 Title: 5.10 kernel fails to boot with secure boot disabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1904906/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
