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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

This issue appears to be an upstream bug, since you tested the latest
upstream kernel. Would it be possible for you to open an upstream bug
report[0]? That will allow the upstream Developers to examine the issue,
and may provide a quicker resolution to the bug.

Please follow the instructions on the wiki page[0]. The first step is to
email the appropriate mailing list. If no response is received, then a
bug may be opened on bugzilla.kernel.org.

Once this bug is reported upstream, please add the tag: 'kernel-bug-
reported-upstream'.

[0] https://wiki.ubuntu.com/Bugs/Upstream/kernel

** Tags removed: trust
** Tags added: trusty

** Changed in: linux (Ubuntu)
       Status: Confirmed => Triaged

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https://bugs.launchpad.net/bugs/1287157

Title:
  Bridge only working on second netcard - be2net

Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  This is reduced bug report for a bug similar to:
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1213887

  What we have done is to make a simple network and basic installation
  af 14.04 daily build from 2014-03-03.

  The error is also in  12.04 and later kernels.

  If we use the first network card a a bridge:
  /etc/network/interfaces:
  # The loopback network interface
  auto lo
  iface lo inet loopback

  # The primary network interface
  auto p5p1
  iface p5p1 inet manual

  auto vlan280
  iface vlan280 inet static
        address 10.230.80.26
        netmask 255.255.255.0
        gateway 10.230.80.1
        dns-search 10.230.80.11 10.230.80.12
        bridge_ports p5p1
        bridge_maxwait 0
        bridge_fd 0
        bridge stp_off

  
  auto p5p2
  iface p5p2 inet static
        mtu 9000
        address 10.230.92.26
        network 10.230.92.0
        netmask 255.255.255.0
        post-up ifconfig p5p2 txqueuelen 10000

  
  You begin to lose pings and the connection to 10.230.80.26 becomes very unstable. The connection to 10.230.92.26 i running without problems all the time.

  We get some messages in syslog vlan280: received packet on p5p1 with
  own address as source address

  
  If we switch the bridge to the second networkcard the bridge works:
  # The loopback network interface
  auto lo
  iface lo inet loopback

  # The primary network interface
  auto p5p2
  iface p5p2 inet manual

  auto vlan280
  iface vlan280 inet static
        address 10.230.80.26
        netmask 255.255.255.0
        gateway 10.230.80.1
        dns-search 10.230.80.11 10.230.80.12
        bridge_ports p5p2
        bridge_maxwait 0
        bridge_fd 0
        bridge stp_off

  
  auto p5p1
  iface p5p1 inet static
        mtu 9000
        address 10.230.92.26
        network 10.230.92.0
        netmask 255.255.255.0
        post-up ifconfig p5p1 txqueuelen 10000

  A normal network setup does not give any problems at all on p5p1

  lsb_release -rd:
  Description:    Ubuntu Trusty Tahr (development branch)
  Release:        14.04

  lsmod:
  Module                  Size  Used by
  drbd                  323103  0
  lru_cache              15442  1 drbd
  libcrc32c              12644  1 drbd
  bridge                110702  0
  stp                    12976  1 bridge
  llc                    14552  2 stp,bridge
  intel_rapl             18773  0
  x86_pkg_temp_thermal    14162  0
  intel_powerclamp       14705  0
  coretemp               13435  0
  kvm_intel             143060  0
  kvm                   451519  1 kvm_intel
  crct10dif_pclmul       14289  0
  crc32_pclmul           13113  0
  ghash_clmulni_intel    13259  0
  aesni_intel            55624  0
  aes_x86_64             17131  1 aesni_intel
  lrw                    13286  1 aesni_intel
  gf128mul               14951  1 lrw
  glue_helper            13990  1 aesni_intel
  ablk_helper            13597  1 aesni_intel
  cryptd                 20359  3 ghash_clmulni_intel,aesni_intel,ablk_helper
  gpio_ich               13476  0
  microcode              23656  0
  psmouse               101945  0
  serio_raw              13462  0
  joydev                 17381  0
  sb_edac                22344  0
  edac_core              62291  1 sb_edac
  ioatdma                63447  0
  lpc_ich                21080  0
  hpilo                  17381  0
  hpwdt                  14242  0
  dca                    15130  1 ioatdma
  ipmi_si                53257  0
  acpi_power_meter       18058  0
  mac_hid                13205  0
  lp                     17759  0
  parport                42348  1 lp
  hid_generic            12548  0
  tg3                   166442  0
  usbhid                 52616  0
  ptp                    18933  1 tg3
  hid                   106148  2 hid_generic,usbhid
  be2net                104514  0
  hpsa                   67363  2
  pps_core               19382  1 ptp

  
   ethtool -i p5p1
  driver: be2net
  version: 10.0.600.0u
  firmware-version: 4.6.247.5
  bus-info: 0000:24:00.0
  supports-statistics: yes
  supports-test: yes
  supports-eeprom-access: yes
  supports-register-dump: no
  supports-priv-flags: no

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