kernel-packages team mailing list archive

[Serge Hallyn <1423631@xxxxxxxxxxxxxxxxxx>]

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