Comment 24 for bug 1776575

@tyhicks: i totally forgot you asked me to try testing with the HOST running an older kernel... my amd64 GUEST VMs are NOT kernel panicking :shock: :shock: :shock:

20180616 HOST uname -a:
Linux shadow 3.13.0-149-generic #199-Ubuntu SMP Thu May 17 10:12:50 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

20180616 HOST cpuinfo:
same as previous posted

20180616 HOST dmidecode:
suspect is the same but here is the latest one, https://pastebin.com/VW3x9NaP

20180616 HOST cat /var/log/libvirt/qemu/haven-vm.log:
2018-06-16 14:13:39.077+0000: shutting down
[... upgrade to qemu*.43 ...]
[... HOST reboot ...]
2018-06-16 14:17:50.050+0000: starting up
LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin QEMU_AUDIO_DRV=none /usr/bin/kvm-spice -name haven-vm -S -machine pc-i440fx-trusty,accel=kvm,usb=off -cpu Opteron_G5,+bmi1,+perfctr_nb,+perfctr_core,+topoext,+nodeid_msr,+tce,+lwp,+wdt,+skinit,+ibs,+osvw,+cr8legacy,+extapic,+cmp_legacy,+fxsr_opt,+mmxext,+osxsave,+monitor,+ht,+vme -m 768 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid 8d88f791-5b85-5293-329f-943e871c4a02 -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/haven-vm.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -boot strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/var/lib/libvirt/images/haven-vm.img,if=none,id=drive-virtio-disk0,format=raw -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive if=none,id=drive-ide0-1-0,readonly=on,format=raw -device ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev tap,fd=23,id=hostnet0,vhost=on,vhostfd=25 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:6c:88:6a,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -vnc 127.0.0.1:1 -device vmware-svga,id=video0,bus=pci.0,addr=0x2 -device intel-hda,id=sound0,bus=pci.0,addr=0x4 -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6
char device redirected to /dev/pts/7 (label charserial0)

20180616 HOST dmesg (full):
https://pastebin.com/demTJw2V

20180616 HOST update log QEMU*.42 -> QEMU*.43:
https://pastebin.com/8EfZu7Av