See CurrentDmesg.txt for lots of errors such as: [ 1688.474887] Call Trace: [ 1688.474914] [<f8bae0f3>] kvm_vcpu_ioctl+0x433/0x4d0 [kvm] [ 1688.474924] [<c108064f>] ? wake_up_state+0xf/0x20 [ 1688.474931] [<c10b9795>] ? wake_futex+0x65/0x90 [ 1688.474937] [<c10babed>] ? futex_wake+0x13d/0x160 [ 1688.474942] [<c10bbe4b>] ? do_futex+0xeb/0x660 [ 1688.474966] [<f8badcc0>] ? vcpu_put+0x30/0x30 [kvm] [ 1688.474972] [<c1186012>] do_vfs_ioctl+0x2e2/0x4d0 [ 1688.474977] [<c10b7819>] ? tick_program_event+0x29/0x30 [ 1688.474983] [<c1075eb2>] ? hrtimer_interrupt+0x142/0x2b0 [ 1688.474988] [<c10bc44c>] ? SyS_futex+0x8c/0x140 [ 1688.474993] [<c1186260>] SyS_ioctl+0x60/0x80 [ 1688.475002] [<c1646147>] syscall_call+0x7/0xb [ 1688.475009] [<c1640000>] ? __ticket_unlock_slowpath+0x13/0x31
** Also affects: qemu-kvm (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in Ubuntu. https://bugs.launchpad.net/bugs/1268906 Title: cpu soft lockup running kvm To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1268906/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs