KVM will not start after upgrade to 1.6.

T

thump

New Member
Jun 14, 2010
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Haven't been able to get any KVM to start after upgrading to 1.6 and proxmox-ve-2.6.32. Tried creating a new KVM for testing:

/usr/sbin/qm start 103
warning: could not open /dev/net/tun: no virtual network emulation
start failed: command '/usr/bin/kvm -monitor unix:/var/run/qemu-server/103.mon,server,nowait -vnc unix:/var/run/qemu-server/103.vnc,password -pidfile /var/run/qemu-server/103.pid -daemonize -usbdevice tablet -name mm-tangle1 -smp sockets=1,cores=1 -nodefaults -boot menu=on,order=c -vga cirrus -tdf -k en-us -drive file=/var/lib/vz/template/iso/untangle_720_32bit.iso,if=ide,index=2,media=cdrom -drive file=/var/lib/vz/images/103/vm-103-disk-1.raw,if=virtio,index=0,boot=on -m 1024 -net tap,vlan=1,ifname=vmtab103i1,script=/var/lib/qemu-server/bridge-vlan -net nic,vlan=1,model=virtio,macaddr=BA:B5:32:D8:2E:E2' failed with exit code 1
VM 103 start failed -

# pveversion -v
pve-manager: 1.6-2 (pve-manager/1.6/5087)
running kernel: 2.6.32-3-pve
proxmox-ve-2.6.32: 1.6-12
pve-kernel-2.6.32-3-pve: 2.6.32-12
pve-kernel-2.6.24-10-pve: 2.6.24-21
qemu-server: 1.1-18
pve-firmware: 1.0-6
libpve-storage-perl: 1.0-13
vncterm: 0.9-2
vzctl: 3.0.24-1pve3
vzdump: 1.2-7
vzprocps: 2.0.11-1dso2
vzquota: 3.0.11-1
pve-qemu-kvm: 0.12.5-1
ksm-control-daemon: 1.0-4

# uname -a
Linux mm-prox0 2.6.32-3-pve #1 SMP Thu Sep 2 09:18:16 CEST 2010 x86_64 GNU/Linux

Problem appears that there is no "tun" module available with the new kernel.
 
Further info after another reboot. Appears there is no /dev/kvm.

/usr/sbin/qm start 101
open /dev/kvm: No such file or directory
Could not initialize KVM, will disable KVM support
warning: could not open /dev/net/tun: no virtual network emulation
start failed: command '/usr/bin/kvm -monitor unix:/var/run/qemu-server/101.mon,server,nowait -vnc unix:/var/run/qemu-server/101.vnc,password -pidfile /var/run/qemu-server/101.pid -daemonize -usbdevice tablet -name mm-tangle0 -smp sockets=1,cores=1 -nodefaults -boot menu=on,order=c -vga cirrus -tdf -k en-us -drive file=/var/lib/vz/template/iso/untangle_720_32bit.iso,if=ide,index=2,media=cdrom -drive file=/var/lib/vz/images/101/vm-101-disk-1.raw,if=virtio,index=0,boot=on -m 1024 -net tap,vlan=1,ifname=vmtab101i1,script=/var/lib/qemu-server/bridge-vlan -net nic,vlan=1,model=virtio,macaddr=1A:3B:5A:7F:F8:F4 -net tap,vlan=2,ifname=vmtab101i2,script=/var/lib/qemu-server/bridge-vlan -net nic,vlan=2,model=virtio,macaddr=A2:79:FE:B8:55:7A -net tap,vlan=3,ifname=vmtab101i3,script=/var/lib/qemu-server/bridge-vlan -net nic,vlan=3,model=virtio,macaddr=7A:F2:2F:1D:86:41' failed with exit code 1
VM 101 start failed -
 
Last update. This thread should be re-titled "KVM will not start after upgrade to 2.6.32-3-pve". I had upgraded both the pve and the kernel at the same time.

After a reboot back into the 2.6.24-10-pve kernel everything is working fine with pve-manager 1.6. Guess I'll have to hold off on the new kernel for a bit.
 
works here. any hint in dmesg? KVM module not loaded?

give also details about your mainboard/cpu for reference.
 
I just finished reinstalling Proxmox & after qmrestores found the same issue exists here.
Changing kernels didn't make a difference.

It might be worth noting that I re-installed from the 1.5.4627-3 iso, since at the time we were still using the previous version. The upgrade was released while I was amidst the qmrestore process, so I simply did aptitude full-upgrade before & after.

tom said:
any hint in dmesg?
Click to expand...
I didn't see anything that appeared out of the ordinary in dmesg either time I tried.

tom said:
give also details about your mainboard/cpu for reference.
Click to expand...
Hopefully the following is sufficient, lshw outputs 747 lines.

Mainboard/CPU:
Dell Poweredge 2950, 2x quad-core Intel Xeon X5470 CPU

Attempt 1 with KSM:
Code: 
bascule:~# pveversion -v
pve-manager: 1.6-2 (pve-manager/1.6/5087)
running kernel: 2.6.32-2-pve
proxmox-ve-2.6.32: 1.6-13
pve-kernel-2.6.32-3-pve: 2.6.32-13
pve-kernel-2.6.18-2-pve: 2.6.18-5
qemu-server: 1.1-18
pve-firmware: 1.0-7
libpve-storage-perl: 1.0-13
vncterm: 0.9-2
vzctl: 3.0.24-1pve4
vzdump: 1.2-7
vzprocps: 2.0.11-1dso2
vzquota: 3.0.11-1
pve-qemu-kvm: 0.12.5-1
ksm-control-daemon: 1.0-4
KVM module is loaded:
Code: 
bascule:~# lsmod
Module                  Size  Used by
tun                    12299  0
kvm_intel              37970  0
kvm                   213288  1 kvm_intel
vzethdev                7189  0
vznetdev               17967  0
simfs                   2991  0
vzrst                 108126  0
vzcpt                  95234  0
vzdquota               34774  0 [permanent]
vzmon                  16237  4 vzethdev,vznetdev,vzrst,vzcpt
vzdev                   1824  4 vzethdev,vznetdev,vzdquota,vzmon
xt_tcpudp               2319  0
xt_length               1164  0
xt_hl                   1313  0
xt_tcpmss               1401  0
xt_TCPMSS               2935  0
iptable_mangle          2881  0
iptable_filter          2322  0
xt_multiport            2267  0
xt_limit                1782  0
xt_dscp                 1805  0
ipt_REJECT              1953  0
ip_tables              14107  2 iptable_mangle,iptable_filter
x_tables               13117  10 xt_tcpudp,xt_length,xt_hl,xt_tcpmss,xt_TCPMSS,xt_multiport,xt_limit,xt_dscp,ipt_REJECT,ip_tables
ib_iser                24210  0
rdma_cm                20486  1 ib_iser
ib_cm                  26192  1 rdma_cm
iw_cm                   6275  1 rdma_cm
ib_sa                  16199  2 rdma_cm,ib_cm
ib_mad                 29825  2 ib_cm,ib_sa
ib_core                40679  6 ib_iser,rdma_cm,ib_cm,iw_cm,ib_sa,ib_mad
ib_addr                 4389  1 rdma_cm
iscsi_tcp               8017  0
libiscsi_tcp           10898  1 iscsi_tcp
libiscsi               29206  3 ib_iser,iscsi_tcp,libiscsi_tcp
scsi_transport_iscsi    24844  4 ib_iser,iscsi_tcp,libiscsi
bridge                 40246  0
stp                     1440  1 bridge
btusb                   9833  0
snd_pcm                60487  0
snd_timer              15550  1 snd_pcm
i5k_amb                 4343  0
snd                    46398  2 snd_pcm,snd_timer
soundcore               4598  1 snd
snd_page_alloc          6137  1 snd_pcm
bluetooth              41635  1 btusb
evdev                   7368  0
serio_raw               3768  0
pcspkr                  1699  0
rng_core                2990  0
rfkill                 12868  1 bluetooth
dcdbas                  5000  0
psmouse                49681  0
i5000_edac              7188  0
button                  4682  0
edac_core              29261  3 i5000_edac
processor              30111  8
shpchp                 26264  0
pci_hotplug            21219  1 shpchp
ext3                  105398  3
jbd                    36509  1 ext3
mbcache                 5050  1 ext3
dm_mirror              10827  0
dm_region_hash          6584  1 dm_mirror
dm_log                  7381  2 dm_mirror,dm_region_hash
dm_snapshot            18289  0
dm_mod                 53194  12 dm_mirror,dm_log,dm_snapshot
usbhid                 32892  0
hid                    62681  1 usbhid
sg                     18664  0
sr_mod                 12682  0
cdrom                  29415  1 sr_mod
ses                     5128  0
sd_mod                 29585  3
crc_t10dif              1276  1 sd_mod
enclosure               5407  1 ses
ata_piix               21028  0
ata_generic             2983  0
ehci_hcd               30543  0
uhci_hcd               18393  0
usbcore               121538  5 btusb,usbhid,ehci_hcd,uhci_hcd
nls_base                6377  1 usbcore
libata                132864  2 ata_piix,ata_generic
ixgbe                 105998  0
megaraid_sas           29004  2
dca                     3761  1 ixgbe
mdio                    3000  1 ixgbe
scsi_mod              121461  10 ib_iser,iscsi_tcp,libiscsi,scsi_transport_iscsi,sg,sr_mod,ses,sd_mod,libata,megaraid_sas
bnx2                   57177  0
thermal                11754  0
fan                     3362  0
thermal_sys            11942  3 processor,thermal,fan
bascule:~#
Start Failed syslog message:
Code: 
Sep  4 13:20:41 bascule qm[3638]: VM 209 start failed: command  '/usr/bin/kvm -monitor unix:/var/run/qemu-server/209.mon,server,nowait  -vnc unix:/var/run/qemu-server/209.vnc,password -pidfile  /var/run/qemu-server/209.pid -daemonize -usbdevice tablet -name Rohini  -smp sockets=1,cores=4 -nodefaults -boot menu=on,order=dc -vga cirrus  -tdf -localtime -k en-us -drive if=ide,index=2,media=cdrom -drive  file=/var/lib/vz/images/209/vm-209-disk-1.raw,if=virtio,index=0,boot=on  -drive file=/var/lib/vz/images/209/vm-209-disk-2.raw,if=virtio,index=1  -m 4096 -net  tap,vlan=1,ifname=vmtab209i1,script=/var/lib/qemu-server/bridge-vlan  -net nic,vlan=1,model=virtio,macaddr=A2:47:D6:89:D2:28' failed with exit  code 1
Sep  4 13:20:41 bascule pvedaemon[3637]: VM 209 start failed -
Attempt 2 without KSM:
Code: 
bascule:~# pveversion -v
pve-manager: 1.6-2 (pve-manager/1.6/5087)
running kernel: 2.6.24-12-pve
proxmox-ve-2.6.24: 1.5-24
pve-kernel-2.6.18-2-pve: 2.6.18-5
pve-kernel-2.6.24-12-pve: 2.6.24-24
qemu-server: 1.1-18
pve-firmware: 1.0-7
libpve-storage-perl: 1.0-13
vncterm: 0.9-2
vzctl: 3.0.24-1pve4
vzdump: 1.2-7
vzprocps: 2.0.11-1dso2
vzquota: 3.0.11-1
pve-qemu-kvm: 0.12.5-1
KVM module is loaded:
Code: 
bascule:~# lsmod
Module                  Size  Used by
kvm_intel              58568  0
kvm                   207496  1 kvm_intel
vzethdev               23552  0
vznetdev               32904  0
simfs                  14064  0
vzrst                 158248  0
vzcpt                 131256  0
tun                    23168  2 vzrst,vzcpt
vzdquota               60016  0 [permanent]
vzmon                  58008  4 vzethdev,vznetdev,vzrst,vzcpt
vzdev                  12808  4 vzethdev,vznetdev,vzdquota,vzmon
xt_tcpudp              12160  0
xt_length              10752  0
ipt_ttl                10624  0
xt_tcpmss              11008  0
xt_TCPMSS              13440  0
iptable_mangle         13824  0
iptable_filter         13568  0
xt_multiport           12160  0
xt_limit               11904  0
ipt_tos                10368  0
ipt_REJECT             13824  0
ip_tables              33384  2 iptable_mangle,iptable_filter
x_tables               34056  10 xt_tcpudp,xt_length,ipt_ttl,xt_tcpmss,xt_TCPMSS,xt_multiport,xt_limit,ipt_tos,ipt_REJECT,ip_tables
ipv6                  350592  49 vzrst,vzcpt,vzmon
ib_iser                47112  0
rdma_cm                44788  1 ib_iser
ib_cm                  45864  1 rdma_cm
iw_cm                  19848  1 rdma_cm
ib_sa                  34912  2 rdma_cm,ib_cm
ib_mad                 52008  2 ib_cm,ib_sa
ib_core                71552  6 ib_iser,rdma_cm,ib_cm,iw_cm,ib_sa,ib_mad
ib_addr                17672  1 rdma_cm
iscsi_tcp              36992  0
libiscsi               38912  2 ib_iser,iscsi_tcp
scsi_transport_iscsi    44560  4 ib_iser,iscsi_tcp,libiscsi
bridge                 75304  0
hci_usb                27036  0
serio_raw              16388  0
dcdbas                 18736  0
i5000_edac             19464  0
pcspkr                 12160  0
bluetooth              76324  1 hci_usb
psmouse                54684  0
evdev                  22912  0
shpchp                 46236  0
edac_core              61840  3 i5000_edac
pci_hotplug            43056  1 shpchp
button                 18080  0
dm_mirror              34816  0
dm_snapshot            27744  0
dm_mod                 80248  9 dm_mirror,dm_snapshot
usbhid                 43616  0
hid                    53312  1 usbhid
sg                     49560  0
sr_mod                 27812  0
cdrom                  49064  1 sr_mod
ata_piix               32004  0
pata_acpi              17152  0
sd_mod                 41088  3
ehci_hcd               50188  0
ata_generic            17156  0
uhci_hcd               38176  0
libata                189616  3 ata_piix,pata_acpi,ata_generic
megaraid_sas           45884  2
usbcore               180912  5 hci_usb,usbhid,ehci_hcd,uhci_hcd
scsi_mod              189752  9 ib_iser,iscsi_tcp,libiscsi,scsi_transport_iscsi,sg,sr_mod,sd_mod,libata,megaraid_sas
bnx2                  205068  0
thermal                26912  0
processor              49096  9 thermal
fan                    13960  0
bascule:~#
Start Failed syslog message:
Code: 
Sep  4 13:40:09 bascule qm[5797]: VM 209 start failed: command  '/usr/bin/kvm -monitor unix:/var/run/qemu-server/209.mon,server,nowait  -vnc unix:/var/run/qemu-server/209.vnc,password -pidfile  /var/run/qemu-server/209.pid -daemonize -usbdevice tablet -name Rohini  -smp sockets=1,cores=4 -nodefaults -boot menu=on,order=dc -vga cirrus  -tdf -localtime -k en-us -drive if=ide,index=2,media=cdrom -drive  file=/var/lib/vz/images/209/vm-209-disk-1.raw,if=virtio,index=0,boot=on  -drive file=/var/lib/vz/images/209/vm-209-disk-2.raw,if=virtio,index=1  -m 4096 -net  tap,vlan=1,ifname=vmtab209i1,script=/var/lib/qemu-server/bridge-vlan  -net nic,vlan=1,model=virtio,macaddr=A2:47:D6:89:D2:28' failed with exit  code 1
Sep  4 13:40:09 bascule pvedaemon[5796]: VM 209 start failed -
 
same for me first it look for modules at wrong place
FATAL: Could not load /lib/modules/2.6.32-1-pve/modules.dep: No such file or directory

i made symlink for 32-3 with 32-1 then there are some errors with module tun
 
Sep 4 21:20:22 genabaris modprobe: FATAL: Error inserting tun (/lib/modules/2.6.32-3-pve/kernel/drivers/net/tun.ko): Invalid module format
Sep 4 21:20:22 genabaris kernel: tun: disagrees about version of symbol module_layout
 
Taliesin said:
Sep 4 21:20:22 genabaris modprobe: FATAL: Error inserting tun (/lib/modules/2.6.32-3-pve/kernel/drivers/net/tun.ko): Invalid module format
Sep 4 21:20:22 genabaris kernel: tun: disagrees about version of symbol module_layout
Click to expand...

what is the output of:

# md5sum /lib/modules/2.6.32-3-pve/kernel/drivers/net/tun.ko

and

# md5sum /boot/System.map-2.6.32-3-pve
 
Last edited:
Sorry for the delayed response. I was out for the holiday and then playing catch up at work.

* Mainboard/CPU: ASUS RS100-E5/PI2 1U Barebone Server (P5BV-M/RS100-E5 mobo) / Intel Xeon X3220 Kentsfield 2.4GHz LGA 775 Quad-Core (SLACT, G0 stepping)

* dmesg doesn't produce anything exciting.

* /lib/modules/2.6.32-1-pve/modules.dep is an empty file.

* modprobe of kvm, tun, ext2 = not found

* md5sum /lib/modules/2.6.32-3-pve/kernel/drivers/net/tun.ko
b43bc85fbb9e067435bc5e26a88aa88d

* md5sum /boot/System.map-2.6.32-3-pve
I can't mount /boot because mine is ext2 and the running kernel (2.6.32-3-pve) won't load ext2 module (not found).

Please let me know if you need further info. I should be around all afternoon for testing.
 
Booted back into 2.6.24-10-pve and did an apt-get upgrade to the new replacement 2.6.32-3-pve. All now seems to be working with 2.6.32-3-pve. Thanks!
 
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