ACK I can confirm that this issue is no longer present with the Linux 3.13.0-33-generic #58~lp1349768v2v201407300928 kernel as installed from above. Rebooting into the given kernel results in dnsmasq-tftp transfers working fine, and no related dmesg errors occur.
Apologies for the delay. I was away, and had to reproduce this in a test environment first. Do tell me if you would still like a minimal reproducer to track down the issue further, and I can work on getting something like that up. AFAICT it would involve dnsmasq with enable-tftp/tftp-root and a libvirt-qemu domain with <boot dev='network'> , requesting the ubuntu- installer amd64 linux kernel over TFTP, with the ip_vs modules loaded and a trivial ipvs ruleset applied on the server. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1349768 Title: kernel 3.13.0-32 ipvs "IPv6 header not found" related to UDP socket sendto() EPERM errors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1349768/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs