With earlycon on, I am able to get more output. This looks like a smoking gun:
[ 0.460249] CPU features: CPU1: Detected conflict for capability 11 (Virtualization Host Extensions), System: 0, CPU: 1 git blame for this error message points at: e988af0188e30 arm64: capabilities: Unify the verification ** Attachment added: "earlycon-console.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1852723/+attachment/5306302/+files/earlycon-console.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1852723 Title: [Regression] Bionic kernel 4.15.0-71.80 can not boot on ThunderX2 Status in linux package in Ubuntu: Invalid Status in linux source package in Bionic: Confirmed Bug description: Tested on bionic GA 4.15.0-70-generic 4.15.0-71-generic and also HWE 5.0.0-37-generic 5.3.0-23-generic Only 4.15.0-71-generic can not boot on Cavium ThunderX2 On console nothing after EFI messages. Loading Linux 4.15.0-71-generic ... Loading initial ramdisk ... EFI stub: Booting Linux Kernel... EFI stub: EFI_RNG_PROTOCOL unavailable, no randomness supplied EFI stub: Using DTB from configuration table EFI stub: Exiting boot services and installing virtual address map... To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1852723/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
