[virt-tools-list] Nested VM images fail/freeze during booting
Cole Robinson
crobinso at redhat.com
Thu Apr 2 16:00:13 UTC 2015
What distro is your physical host, L1 VM, and L2 VM running?
- Cole
On 04/02/2015 10:33 AM, Steve Amerige wrote:
> Hi all,
>
> *Problem:* Nested VM images fail/freeze during booting.
>
> *Details:*
>
> *Hardware:*
>
> * Model: Dell R620
> * CPU: 2 x 6 x 2 (ht) Intel E5-2667
> o flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
> pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
> pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl
> xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor
> ds_cpl *vmx *smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2
> x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat
> xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid
> * Memory: 192GB
> * Disk: 7.0T local filesystem
>
> *Physical Hypervisor Configuration:*
>
> * /etc/modprobe.d/kvm-nested.conf (see below)
> * /etc/libvirt/qemu/virtual-hypervisor.xml (see below)
> o Runs without any problems
> o Includes: <cpu ...><feature policy='require' name='vmx'/></cpu>
>
> *Virtual Hypervisor Configuration:*
>
> * virt-manager opens without any problems
> * The virtual guest within the virtual hypervisor VM fails to boot
> o I see the screen in which the boot choices are shown. After the
> selection is made (either by waiting for the selection timeout, or by
> explicit selection), the next screen shows a screen dump (see below)
> * /etc/libvirt/qemu/virtual-guest.xml (see below)
> o Uses virbr0
> o There is no /var/log/libvirt/qemu logfile as the boot up doesn't get
> far enough.
>
> I tried placing the virtual-guest.xml and image on the physical hypervisor and
> it does boot up without any problems.
>
> I've scoured the web and can't figure out why boot up is failing for the
> nested VM. Can anyone think of a solution or help out in any way?
>
> Thanks,
> Steve Amerige
> Principal Software Developer, Fraud and Compliance Solutions Development
> SAS Institute, 100 SAS Campus Dr, Room U3050, Cary, NC 27513-8617
>
> *Physical Hypervisor Configuration:*
>
> */etc/modprobe.d/kvm-nested.conf:*
>
> options kvm_intel nested=1
>
> */etc/libvirt/qemu/virtual-hypervisor.xml:*
>
> <domain type='kvm'>
> <name>virtual-hypervisor</name>
> <uuid>5bded4c9-e00a-4c33-8d68-f79ef9bf6daa</uuid>
> <memory unit='KiB'>16777216</memory>
> <currentMemory unit='KiB'>33554432</currentMemory>
> <vcpu placement='static'>4</vcpu>
> <os>
> <type arch='x86_64' machine='pc-i440fx-rhel7.0.0'>hvm</type>
> <boot dev='hd'/>
> </os>
> <features>
> <acpi/>
> <apic/>
> <pae/>
> </features>
> <cpu mode='custom' match='exact'>
> <model fallback='allow'>SandyBridge</model>
> <vendor>Intel</vendor>
> <feature policy='require' name='vmx'/>
> </cpu>
> <clock offset='utc'/>
> <on_poweroff>destroy</on_poweroff>
> <on_reboot>restart</on_reboot>
> <on_crash>restart</on_crash>
> <devices>
> <emulator>/usr/libexec/qemu-kvm</emulator>
> <disk type='file' device='disk'>
> <driver name='qemu' type='qcow2' cache='none'/>
> <source file='/var/lib/libvirt/images/virtual-hypervisor.qcow2'/>
> <target dev='vda' bus='virtio'/>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
> </disk>
> <disk type='block' device='cdrom'>
> <driver name='qemu' type='raw'/>
> <target dev='hdc' bus='ide'/>
> <readonly/>
> <address type='drive' controller='0' bus='1' target='0' unit='0'/>
> </disk>
> <controller type='usb' index='0'>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
> </controller>
> <controller type='pci' index='0' model='pci-root'/>
> <controller type='ide' index='0'>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
> </controller>
> <interface type='bridge'>
> <mac address='52:54:00:7a:40:a6'/>
> <source bridge='br0'/>
> <model type='virtio'/>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
> </interface>
> <serial type='pty'>
> <target port='0'/>
> </serial>
> <console type='pty'>
> <target type='serial' port='0'/>
> </console>
> <input type='tablet' bus='usb'/>
> <input type='mouse' bus='ps2'/>
> <graphics type='vnc' port='-1' autoport='yes'/>
> <sound model='ich6'>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
> </sound>
> <video>
> <model type='cirrus' vram='9216' heads='1'/>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
> </video>
> <memballoon model='virtio'>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
> </memballoon>
> </devices>
> </domain>
>
> *Virtual Guest Configuration:*
>
> <domain type='kvm'>
> <name>virtual-guest.xml</name>
> <uuid>863ffbe3-1d4e-4ca6-b86f-bb13e32fed6b</uuid>
> <memory unit='KiB'>2097152</memory>
> <currentMemory unit='KiB'>2097152</currentMemory>
> <vcpu placement='static'>1</vcpu>
> <os>
> <type arch='x86_64' machine='pc-i440fx-rhel7.0.0'>hvm</type>
> <boot dev='hd'/>
> </os>
> <features>
> <acpi/>
> <apic/>
> <pae/>
> </features>
> <clock offset='utc'/>
> <on_poweroff>destroy</on_poweroff>
> <on_reboot>restart</on_reboot>
> <on_crash>restart</on_crash>
> <devices>
> <emulator>/usr/libexec/qemu-kvm</emulator>
> <disk type='file' device='disk'>
> <driver name='qemu' type='qcow2' cache='none'/>
> <source file='/var/lib/libvirt/images/virtual-guest.xml.img'/>
> <target dev='vda' bus='virtio'/>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
> </disk>
> <disk type='block' device='cdrom'>
> <driver name='qemu' type='raw'/>
> <target dev='hdc' bus='ide'/>
> <readonly/>
> <address type='drive' controller='0' bus='1' target='0' unit='0'/>
> </disk>
> <controller type='usb' index='0'>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
> </controller>
> <controller type='pci' index='0' model='pci-root'/>
> <controller type='ide' index='0'>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
> </controller>
> <interface type='bridge'>
> <mac address='52:54:00:0f:a8:81'/>
> <source bridge='virbr0'/>
> <model type='virtio'/>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
> </interface>
> <serial type='pty'>
> <target port='0'/>
> </serial>
> <console type='pty'>
> <target type='serial' port='0'/>
> </console>
> <input type='tablet' bus='usb'/>
> <input type='mouse' bus='ps2'/>
> <graphics type='vnc' port='-1' autoport='yes'/>
> <sound model='ich6'>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
> </sound>
> <video>
> <model type='cirrus' vram='9216' heads='1'/>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
> </video>
> <memballoon model='virtio'>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
> </memballoon>
> </devices>
> </domain>
>
> *virt-manager display of Virtual Machine showing failure:
>
>
> *
>
>
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