@dannf: while i used ppa:yarmouth-team/thunderx kernel, it still causes the server hanging. I'm using Openstack on arm64 just like what ciprian-barbu did.
R150-T60 BIOS version T12 Ubuntu 16.04.2 tested kernel: offical-4.4, thunderx-4.8 program: openstack mitaka, qemu command is same as ciprian-barbu's `launch.sh` in Comment #1 -- 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/1673564 Title: ThunderX: soft lockup on 4.8+ kernels when running qemu-efi with vhost=on Status in linux package in Ubuntu: Confirmed Status in linux source package in Xenial: Confirmed Status in linux source package in Yakkety: Confirmed Status in linux source package in Zesty: Confirmed Bug description: [Impact] VMs can cause interrupts to be disabled on the host CPU, resulting in hangs. [Test Case] See Comment #1. [Regression Risk] (TBD, once proposed patches are finalized) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1673564/+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