Created attachment 479710 [details] virtio-net: set size of transmitted ethernet frame to header + data length Description of problem: All ethernet frames sent by gpxe's virtio-net driver have a length of 1514, regardless of the actual size needed to encapsulate the data. This messes up at least DHCP on some networks, because the DHCP relay agent can't manipulate the "full" ethernet frame. This was causing KVM PXE failures for me since the DHCP transaction wouldn't complete. Version-Release number of selected component (if applicable): gpxe-1.0.1-1 How reproducible: always Steps to Reproduce: 1. Use virt-manager to create a VM with network driver virtio 2. Try to PXE boot the VM 3. Monitor the traffic--all frames have an ethernet length of 1514 Actual results: fail to boot via PXE Expected results: Should boot via PXE. virtio-net should set the ethernet frame length to the actual size of the data to be sent + headers. Additional info: See attached patch for the fix.
Same fix needs to be applied to F13, F14, F15, rawhide/F16, and EL5 branches. Thanks.
what's up with el6?
Same bug exists in el6. Could someone who has a RHEL subscription please open a ticket? Thanks.
EL6 bug #679188 Thanks for the patch Chuck. Applied on F13-rawhide and EL5 branches now. Gonna need some testing.
gpxe-1.0.1-3.el5 has been submitted as an update for Fedora EPEL 5. https://admin.fedoraproject.org/updates/gpxe-1.0.1-3.el5
gpxe-1.0.1-3.fc14 has been submitted as an update for Fedora 14. https://admin.fedoraproject.org/updates/gpxe-1.0.1-3.fc14
gpxe-1.0.1-3.fc13 has been submitted as an update for Fedora 13. https://admin.fedoraproject.org/updates/gpxe-1.0.1-3.fc13
gpxe-1.0.1-4.fc15 has been submitted as an update for Fedora 15. https://admin.fedoraproject.org/updates/gpxe-1.0.1-4.fc15
gpxe-1.0.1-3.fc13 has been pushed to the Fedora 13 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with su -c 'yum --enablerepo=updates-testing update gpxe'. You can provide feedback for this update here: https://admin.fedoraproject.org/updates/gpxe-1.0.1-3.fc13
gpxe-1.0.1-3.fc13 has been pushed to the Fedora 13 stable repository. If problems still persist, please make note of it in this bug report.
gpxe-1.0.1-3.fc14 has been pushed to the Fedora 14 stable repository. If problems still persist, please make note of it in this bug report.
gpxe-1.0.1-4.fc15 has been pushed to the Fedora 15 stable repository. If problems still persist, please make note of it in this bug report.