Might be related, might not. This is displayed before the reboot. host doesn't support requested feature: CPUID.01H:ECX.vmx [bit 5]
I did downgrade from the testing qemu packages, maybe that changed my VMs, but that still shouldn't cause a host reboot (or kvm with no options). ** Attachment added: "Warning.png" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1747507/+attachment/5049442/+files/Warning.png -- 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/1747507 Title: starting VMs causing retpoline4 to reboot Status in linux package in Ubuntu: Confirmed Bug description: Using 4.13.0-33.36~retpoline4 kernel test kernel from ppa https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/spectre/. CPU: AMD Ryzen 7 1700 Eight-Core Processor Ubuntu: 17.10. Steps to reproduce (has occurred both times I tried it): 1. Just run kvm with no options (or virsh start <> or start VM from GUI) Machine reboots Going back to 4.13.0-32 has virsh working again. qemu-system-x86_64 command works fine unless you use the enable kvm command. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1747507/+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
