Hi, In the end the problem was SR-IOV enabled on the cards. I turned this off and everything worked ok. Im using HP 10G cards which are rebranded emulex. 0a:00.0 Ethernet controller: Emulex Corporation OneConnect 10Gb NIC (be3) (rev 01) Thanks, Andrew On Aug 17, 2012, at 4:34 AM, Alex Jia wrote: > Hi Andrew, > I can't confirm a root reason based on your information, perhaps you may > try to find a reason by yourself via the following docs: > > http://wiki.libvirt.org/page/PXE_boot_%28or_dhcp%29_on_guest_failed (Troubleshooting) > http://docs.fedoraproject.org/en-US/Fedora/13/html/Virtualization_Guide/sect-Virtualization-Virtualized_guest_installation_overview-Installing_guests_with_PXE.html (User Guide) > > If can't, please provide your version of kvm, libvirt, tftp, etc, and run 'virsh net-dumpxml br0' to dump your > network bridge XML configuration, and run 'cat pxelinux.cfg' to show your pxelinux configuration, thanks. > > -- > Regards, > Alex > > > ----- Original Message ----- > From: "Andrew Holway" <a.holway@xxxxxxxxxxxx> > To: kvm@xxxxxxxxxxxxxxx > Sent: Thursday, August 16, 2012 8:25:35 PM > Subject: [libvirt-users] vm pxe fail > > Hallo > > I have a kvm vm that I am attempting to boot from pxe. The dhcp works perfectly and I can see the VM in the pxe server arp. but the tftp just times out. I don't see any tftp traffic on either the physical host or on the pie server. I am using a bridged interface. I have tried using several virtual nic drivers, several different mac addresses and several different ips. on the physical host I can get the pxelinux.0 file from the pxe server via tftp and can clearly see that traffic with tcpdump. > > Ive tried using various virtual interfaces. > > I can pxe boot my physical hosts with no problems. > > I can tftp fine from the physical host and see the traffic with ethdump > > Here is the terminal output from the VM: https://dl.dropbox.com/u/98200887/Screen%20Shot%202012-08-15%20at%206.41.12%20PM.png > > Thanks, > > Andrew > > [root@node002 ~]# yum list | grep qemu > gpxe-roms-qemu.noarch 0.9.7-6.9.el6 @base > qemu-img.x86_64 2:0.12.1.2-2.295.el6_3.1 @updates > qemu-kvm.x86_64 2:0.12.1.2-2.295.el6_3.1 @updates > qemu-guest-agent.x86_64 2:0.12.1.2-2.295.el6_3.1 updates > qemu-kvm-tools.x86_64 2:0.12.1.2-2.295.el6_3.1 updates > > [root@node002 ~]# ethtool eth0 > Settings for eth0: > Supported ports: [ TP ] > Supported link modes: 10000baseT/Full > Supports auto-negotiation: No > Advertised link modes: 10000baseT/Full > Advertised pause frame use: No > Advertised auto-negotiation: No > Speed: Unknown! > Duplex: Unknown! (255) > Port: Twisted Pair > PHYAD: 0 > Transceiver: internal > Auto-negotiation: off > MDI-X: Unknown > Supports Wake-on: g > Wake-on: g > Current message level: 0x00000014 (20) > Link detected: no > > [root@node002 ~]# brctl show > bridge name bridge id STP enabled interfaces > br0 8000.009c02241ae0 no eth1 > vnet0 > virbr0 8000.525400a6d5aa yes virbr0-nic > > [root@node002 ~]# ethtool vnet0 > Settings for vnet0: > Supported ports: [ ] > Supported link modes: > Supports auto-negotiation: No > Advertised link modes: Not reported > Advertised pause frame use: No > Advertised auto-negotiation: No > Speed: 10Mb/s > Duplex: Full > Port: Twisted Pair > PHYAD: 0 > Transceiver: internal > Auto-negotiation: off > MDI-X: Unknown > Current message level: 0xffffffa1 (-95) > Link detected: yes > > <domain type='kvm'> > <name>vm004</name> > <uuid>4f03b09b-e834-bbf3-a6c2-1689f3156ef2</uuid> > <memory unit='KiB'>2097152</memory> > <currentMemory unit='KiB'>2097152</currentMemory> > <vcpu placement='static'>2</vcpu> > <os> > <type arch='x86_64' machine='rhel6.3.0'>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='raw' cache='none'/> > <source file='/cm/shared/vm/vm004.img'/> > <target dev='hda' bus='ide'/> > <address type='drive' controller='0' bus='0' target='0' unit='0'/> > </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='ide' index='0'> > <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> > </controller> > <interface type='bridge'> > <mac address='00:00:00:00:00:0d'/> > <source bridge='br0'/> > <model type='rtl8139'/> > <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='mouse' bus='ps2'/> > <graphics type='vnc' port='-1' autoport='yes'/> > <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='0x04' function='0x0'/> > </memballoon> > </devices> > </domain> > > > > _______________________________________________ > libvirt-users mailing list > libvirt-users@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/libvirt-users -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
