Timeout adding 9th virtio network interface

[zoltan@cw]

Hey there,

I need to add ablout 15-20 Network interfaces to my vm. As this is a migration scenario, the need for Interfaces is hard to circumvent.
Adding 8 Networks is no problem but I I try to add the 9th Interface I get a timeout starting the machine.

I've had a look in

vi /usr/share/perl5/PVE/QemuServer.pm

and found $MAX_NETS to be 32 by default, so I don't understand why I can't add more than 8.

I interpreted this to be the maximum amount of networks assignable to a single vm.
Please kindly korrect me if I misunderstood this and point me to the right spot.

Thanks in advance,
Zoltan

 

[zoltan@cw]

... seams to be a problem in the webui only,

I copied the failed task and threw it in the commandline:

/usr/bin/kvm \
 -id 100 \
 -name 'Dophos-XG,debug-threads=on' \
 -no-shutdown \
 -chardev 'socket,id=qmp,path=/var/run/qemu-server/100.qmp,server=on,wait=off' \
 -mon 'chardev=qmp,mode=control' \
 -chardev 'socket,id=qmp-event,path=/var/run/qmeventd.sock,reconnect=5' \
 -mon 'chardev=qmp-event,mode=control' \
 -pidfile /var/run/qemu-server/100.pid \
 -daemonize \
 -smbios 'type=1,uuid=e8975c02-fe6d-465c-9ea1-45d222068405' \
 -smp '2,sockets=1,cores=2,maxcpus=2' \
 -nodefaults \
 -boot 'menu=on,strict=on,reboot-timeout=1000,splash=/usr/share/qemu-server/bootsplash.jpg' \
 -vnc 'unix:/var/run/qemu-server/100.vnc,password=on' \
 -cpu qemu64,+aes,enforce,+kvm_pv_eoi,+kvm_pv_unhalt,+pni,+popcnt,+sse4.1,+sse4.2,+ssse3 \
 -m 2048 \
 -object 'iothread,id=iothread-virtioscsi0' \
 -device 'pci-bridge,id=pci.1,chassis_nr=1,bus=pci.0,addr=0x1e' \
 -device 'pci-bridge,id=pci.2,chassis_nr=2,bus=pci.0,addr=0x1f' \
 -device 'pci-bridge,id=pci.3,chassis_nr=3,bus=pci.0,addr=0x5' \
 -device 'vmgenid,guid=59805b18-b59f-4fb7-8e75-7edb6ee4be78' \
 -device 'piix3-usb-uhci,id=uhci,bus=pci.0,addr=0x1.0x2' \
 -device 'usb-tablet,id=tablet,bus=uhci.0,port=1' \
 -device 'VGA,id=vga,bus=pci.0,addr=0x2' \
 -device 'virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3,free-page-reporting=on' \
 -iscsi 'initiator-name=iqn.1993-08.org.debian:01:1cecc1c92571' \
 -drive 'file=/var/lib/vz/template/iso/SW-17.5.12_MR-12-664.iso,if=none,id=drive-ide2,media=cdrom,aio=io_uring' \
 -device 'ide-cd,bus=ide.1,unit=0,drive=drive-ide2,id=ide2,bootindex=101' \
 -device 'virtio-scsi-pci,id=virtioscsi0,bus=pci.3,addr=0x1,iothread=iothread-virtioscsi0' \
 -drive 'file=/dev/pve/vm-100-disk-0,if=none,id=drive-scsi0,format=raw,cache=none,aio=io_uring,detect-zeroes=on' \
 -device 'scsi-hd,bus=virtioscsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0,id=scsi0,bootindex=100' \
 -netdev 'type=tap,id=net0,ifname=tap100i0,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
 -device 'virtio-net-pci,mac=BC:24:11:C7:7A:51,netdev=net0,bus=pci.0,addr=0x12,id=net0,rx_queue_size=1024,tx_queue_size=256,bootindex=102' \
 -netdev 'type=tap,id=net1,ifname=tap100i1,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
 -device 'virtio-net-pci,mac=BC:24:11:A9:92:4C,netdev=net1,bus=pci.0,addr=0x13,id=net1,rx_queue_size=1024,tx_queue_size=256' \
 -netdev 'type=tap,id=net2,ifname=tap100i2,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
 -device 'virtio-net-pci,mac=BC:24:11:1C:10:7A,netdev=net2,bus=pci.0,addr=0x14,id=net2,rx_queue_size=1024,tx_queue_size=256' \
 -netdev 'type=tap,id=net3,ifname=tap100i3,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
 -device 'virtio-net-pci,mac=BC:24:11:91:CB:07,netdev=net3,bus=pci.0,addr=0x15,id=net3,rx_queue_size=1024,tx_queue_size=256' \
 -netdev 'type=tap,id=net4,ifname=tap100i4,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
 -device 'virtio-net-pci,mac=BC:24:11:31:FE:09,netdev=net4,bus=pci.0,addr=0x16,id=net4,rx_queue_size=1024,tx_queue_size=256' \
 -netdev 'type=tap,id=net5,ifname=tap100i5,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
 -device 'virtio-net-pci,mac=BC:24:11:E8:CA:67,netdev=net5,bus=pci.0,addr=0x17,id=net5,rx_queue_size=1024,tx_queue_size=256' \
 -netdev 'type=tap,id=net6,ifname=tap100i6,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
 -device 'virtio-net-pci,mac=BC:24:11:16:70:8E,netdev=net6,bus=pci.1,addr=0x1,id=net6,rx_queue_size=1024,tx_queue_size=256' \
 -netdev 'type=tap,id=net7,ifname=tap100i7,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
 -device 'virtio-net-pci,mac=BC:24:11:5B:69:E5,netdev=net7,bus=pci.1,addr=0x2,id=net7,rx_queue_size=1024,tx_queue_size=256' \
 -netdev 'type=tap,id=net8,ifname=tap100i8,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
 -device 'virtio-net-pci,mac=BC:24:11:98:7D:1F,netdev=net8,bus=pci.1,addr=0x3,id=net8,rx_queue_size=1024,tx_queue_size=256' \
 -netdev 'type=tap,id=net9,ifname=tap100i9,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
 -device 'virtio-net-pci,mac=BC:24:11:38:74:15,netdev=net9,bus=pci.1,addr=0x4,id=net9,rx_queue_size=1024,tx_queue_size=256' \
 -netdev 'type=tap,id=net10,ifname=tap100i10,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
 -device 'virtio-net-pci,mac=BC:24:11:C7:6E:E2,netdev=net10,bus=pci.1,addr=0x5,id=net10,rx_queue_size=1024,tx_queue_size=256' \
 -netdev 'type=tap,id=net11,ifname=tap100i11,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
 -device 'virtio-net-pci,mac=BC:24:11:F7:62:E0,netdev=net11,bus=pci.1,addr=0x6,id=net11,rx_queue_size=1024,tx_queue_size=256' \
 -netdev 'type=tap,id=net12,ifname=tap100i12,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
 -device 'virtio-net-pci,mac=BC:24:11:49:1F:FC,netdev=net12,bus=pci.1,addr=0x7,id=net12,rx_queue_size=1024,tx_queue_size=256' \
 -netdev 'type=tap,id=net13,ifname=tap100i13,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
 -device 'virtio-net-pci,mac=BC:24:11:29:81:96,netdev=net13,bus=pci.1,addr=0x8,id=net13,rx_queue_size=1024,tx_queue_size=256' \
 -netdev 'type=tap,id=net14,ifname=tap100i14,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
 -device 'virtio-net-pci,mac=BC:24:11:CC:90:AF,netdev=net14,bus=pci.1,addr=0x9,id=net14,rx_queue_size=1024,tx_queue_size=256' \
 -netdev 'type=tap,id=net15,ifname=tap100i15,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
 -device 'virtio-net-pci,mac=BC:24:11:EE:E6:CA,netdev=net15,bus=pci.1,addr=0xa,id=net15,rx_queue_size=1024,tx_queue_size=256' \
 -netdev 'type=tap,id=net16,ifname=tap100i16,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
 -device 'virtio-net-pci,mac=BC:24:11:3C:B2:14,netdev=net16,bus=pci.1,addr=0xb,id=net16,rx_queue_size=1024,tx_queue_size=256' \
 -netdev 'type=tap,id=net17,ifname=tap100i17,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
 -device 'virtio-net-pci,mac=BC:24:11:C1:77:C3,netdev=net17,bus=pci.1,addr=0xc,id=net17,rx_queue_size=1024,tx_queue_size=256' \
 -netdev 'type=tap,id=net18,ifname=tap100i18,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
 -device 'virtio-net-pci,mac=BC:24:11:8D:35:57,netdev=net18,bus=pci.1,addr=0xd,id=net18,rx_queue_size=1024,tx_queue_size=256' \
 -netdev 'type=tap,id=net19,ifname=tap100i19,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' \
 -device 'virtio-net-pci,mac=BC:24:11:DC:E5:84,netdev=net19,bus=pci.1,addr=0xe,id=net19,rx_queue_size=1024,tx_queue_size=256'

this didn't timeout but don't know if this works because I seam to have omitted something:
[...]
-machine 'type=pc+pve0'' failed: got timeout