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** Attachment added: "lspci output"
   https://bugs.launchpad.net/ubuntu/+source/linux-meta/+bug/1333913/+attachment/4138408/+files/lspci.txt

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https://bugs.launchpad.net/bugs/1333913

Title:
  Kernel panics on br_nf_pre_routing_finish_bridge with atl1c driver

Status in “linux-meta” package in Ubuntu:
  New

Bug description:
  I'm building custom router based on Ubuntu Server. With
  bridging/routing enabled I've encountered kernel panic (several times
  in row with neither visible reason nor specific timings) in
  br_nf_pre_routing_finish_bridge with atl1c driver loaded.

  The bridge br0 consists of 1 port (eth0), which is the following
  network card:

  05:00.0 Ethernet controller: Qualcomm Atheros AR8151 v2.0 Gigabit
  Ethernet (rev c0)

  It is driven by atl1c module. The network behind this card is NAT'ed.

  Kernel panic photo and lspci output are attached to this report. With
  different network card everything works OK.

  Extra info:

  pf@asgard:~$ uname -a
  Linux asgard 3.13.0-30-generic #54-Ubuntu SMP Mon Jun 9 22:45:01 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

  pf@asgard:~$ cat /etc/lsb-release 
  DISTRIB_ID=Ubuntu
  DISTRIB_RELEASE=14.04
  DISTRIB_CODENAME=trusty
  DISTRIB_DESCRIPTION="Ubuntu 14.04 LTS"

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