Please update the bug with system information by doing apport-collect 1423631
** Also affects: qemu (Ubuntu) Importance: Undecided Status: New ** Also affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1423631 Title: tap interface drops many packets on highload systems Status in linux package in Ubuntu: New Status in qemu package in Ubuntu: New Status in qemu-kvm package in Ubuntu: New Bug description: I use qemu-kvm in openstak. On highload hypervisor tap interface of net-highload gues drops many TX packages. Network options of qemu-system-x86_64 "... -netdev tap,fd=30,id=hostnet0,vhost=on,vhostfd=31 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=fa:16:3e:86:67:7b,bus=pci.0,addr=0x3..." Network domin config: <interface type='bridge'> <mac address='fa:16:3e:86:67:7b'/> <source bridge='qbre4009073-0b'/> <target dev='tape4009073-0b'/> <model type='virtio'/> <alias name='net0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> tape4009073-0b Link encap:Ethernet HWaddr fe:16:3e:86:67:7b inet6 addr: fe80::fc16:3eff:fe86:677b/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1587622634 errors:0 dropped:0 overruns:0 frame:0 TX packets:1484106438 errors:0 dropped:460259 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:877878711500 (877.8 GB) TX bytes:3071846828531 (3.0 TB) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1423631/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp