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["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Dragutin Cirkovic, thank you for taking the time to report this and helping to make Ubuntu better. Please execute the following command, as it will automatically gather debugging information, in a terminal:
apport-collect 1315615

** Package changed: linux-lowlatency (Ubuntu) => linux (Ubuntu)

** Changed in: linux (Ubuntu)
   Importance: Undecided => Low

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1315615

Title:
  nic driver/irq crash

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Dmesg part of the crash:

  May  2 22:40:28 fenrir1 kernel: [1496015.997789] irq 48: nobody cared (try booting with the "irqpoll" option)
  May  2 22:40:28 fenrir1 kernel: [1496015.997853] Pid: 973, comm: irq/48-eth0 Tainted: G        W    3.2.0-60-lowlatency-pae #62-Ubuntu
  May  2 22:40:28 fenrir1 kernel: [1496015.997854] Call Trace:
  May  2 22:40:28 fenrir1 kernel: [1496015.997859]  [<c15a32f5>] ? printk+0x2d/0x2f
  May  2 22:40:28 fenrir1 kernel: [1496015.997863]  [<c10c4aa9>] __report_bad_irq+0x29/0xd0
  May  2 22:40:28 fenrir1 kernel: [1496015.997865]  [<c10c4e64>] note_interrupt+0x104/0x150
  May  2 22:40:28 fenrir1 kernel: [1496015.997868]  [<c10c38b8>] ? irq_forced_thread_fn+0x38/0x50
  May  2 22:40:28 fenrir1 kernel: [1496015.997870]  [<c10c3817>] irq_thread+0x1b7/0x1e0
  May  2 22:40:28 fenrir1 kernel: [1496015.997872]  [<c10c3880>] ? irq_thread_fn+0x40/0x40
  May  2 22:40:28 fenrir1 kernel: [1496015.997874]  [<c10c3660>] ? irq_finalize_oneshot+0x20/0x20
  May  2 22:40:28 fenrir1 kernel: [1496015.997877]  [<c107c99d>] kthread+0x6d/0x80
  May  2 22:40:28 fenrir1 kernel: [1496015.997879]  [<c107c930>] ? kthread_worker_fn+0x160/0x160
  May  2 22:40:28 fenrir1 kernel: [1496015.997882]  [<c15c05be>] kernel_thread_helper+0x6/0x10
  May  2 22:40:28 fenrir1 kernel: [1496015.997883] handlers:
  May  2 22:40:28 fenrir1 kernel: [1496015.997938] [<c10c2eb0>] irq_default_primary_handler threaded [<f84cd760>] e1000_msix_other
  May  2 22:40:28 fenrir1 kernel: [1496015.998108] Disabling IRQ #48
  May  2 22:40:30 fenrir1 kernel: [1496017.778701] e1000e 0000:02:00.0: eth0: Reset adapter

  Server is a HP Proliant DL120G6 with 2 integrated gigabit nic which uses e1000e driver for "Intel Corporation 82574L Gigabit Network Connection".
  This happened in kernel 3.2.0-60-lowlatency. Before that i tried 3.2.0-33-generic-pae and similar thing happened. So i'm quite sure it exists in all kernel versions.
  I tried to manually compile e1000e driver from sourceforge but that just did work terribly (didn't crash just didn't work well).
  We use this machine as pppoe concetrator and important thing is that this crash never happened on the interface that is configured as link (have an ip) but only on interface that is setup as pppoe server (kernel mode) so it maybe related to this.
  When this happens eth0 interface is down and as you can imagine all pppoe connections are lost while eth1 works just normally.
  I am quite aware this will be very hard to reproduce and this doesn't happen
  right away - server can work for months before crashing.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-60-lowlatency-pae 3.2.0-60.62
  ProcVersionSignature: Ubuntu 3.2.0-60.62-lowlatency-pae 3.2.55
  Uname: Linux 3.2.0-60-lowlatency-pae i686
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: i386
  Date: Sat May  3 09:10:58 2014
  MarkForUpload: True
  ProcEnviron:
   LANGUAGE=en_US:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: linux-lowlatency
  UpgradeStatus: No upgrade log present (probably fresh install)

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