https://bugzilla.kernel.org/show_bug.cgi?id=76621 Bug ID: 76621 Summary: Bridged networking stopped working after yum update Product: Virtualization Version: unspecified Kernel Version: Very latest with Fedora 20 yum update 2014-05-21 Hardware: x86-64 OS: Linux Tree: Fedora Status: NEW Severity: low Priority: P1 Component: kvm Assignee: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx Reporter: hne.jwebwk@xxxxxx Regression: No Hi KVM, We just moved to KVM from VirtualBox and VmWare. We like the performance improvement but now there is a small problem with bridged networking. There is an easy workaround, just don't do "yum update". But I write this since others might get problems too. The host machine is HP Z620, dual XEON, 70GB memory, Samsung SSD 840 EVO and Radeon HD5450 We are running Fedora 20 64 bit. The guest machines are Windows XP converted from VmWare via VirtualBox to KVM. We install Fedora, KVM and add the virtual machines and it works. We did a "yum update" perhaps 3 weeks ago and were still fine. After "yum update" last week the guest machines can no longer be reached from the network. We have reinstalled and things work again and after update the problems happens again. So it is repeatable. We think something has changed beween 3 weeks and 1 week ago that break the feature. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - This is what we did in more detail. Standard Fedora from DVD Add proxy setting in /etc/yum.conf. yum install openssh-server systemctl enable sshd.service systemctl start sshd.service yum install nano yum install samba nano /etc/samba/smb.conf systemctl enable smb.service systemctl start smb.service systemctl enable nmb.service systemctl start nmb.service Turn off firewall and selinux nano /etc/selinux/config SELINUX=disabled systemctl stop firewalld.service systemctl disable firewalld.service reboot Install kvm yum install @virtualization yum install libvirt systemctl start libvirtd Add/Import virtual machines Copy virtual machine images VirtualDeveloperMachines (VDM) and VitrualTestMachines (VTM) if they are not already on disk. VDMs need two network interfraces one bridged an one NAT. VTMs need only NAT. virt-manager Create a NAT network atpcutest with a dhcp 192.168.4.101 to 132 Create new machine. Give path to the image files type Windows XP Give VDMs 2 cores and 3096MB memory Give VTMs 1 core and 1024MB memory Set configure bofore install Set start VM at boot Set Disk driver to virtio For VDMs add an extra NIC, Set one NIC to bridged em1 set other NIC to atpcutest For VTMs set NIC to atpcutest Both NICs as virtio Set Grapchic as VMVGA After booting VDMs set their static IPs (both) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Doing the above work. Also after rebooting. After doing "yum update" 2014-05-21 it does not work. -- You are receiving this mail because: You are watching the assignee of the bug. -- 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
