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[Rafael David Tinoco <inaddy@xxxxxxxxxx>]

I'm providing a hotfixed kernel backporting the following commits:

commit 4ddfadb6625675d2e105257b029621809eb61b62
Author: David Ertman <davidx.m.ertman@xxxxxxxxx>
Date:   Tue Apr 22 05:25:53 2014 +0000

    e1000e: Workaround for dropped packets in Gig/100 speeds on 82579
    
    This is a workaround for a HW erratum on 82579 devices.
    Erratum is #23 in Intel 6 Series Chipset and Intel C200 Series Chipset
    specification Update June 2013.
    
    Problem: 82579 parts experience packet loss in Gig and 100 speeds
    when interconnect between PHY and MAC is exiting K1 power saving state.
    This was previously believed to only affect 1Gig speed, but has been observed
    at 100Mbs also.
    
    Workaround: Disable K1 for 82579 devices at Gig and 100 speeds.
    
    [Conflicts]
        - Did not include commit 1b41db3 with cosmetic changes
    
    Signed-off-by: Dave Ertman <davidx.m.ertman@xxxxxxxxx>
    Tested-by: Aaron Brown <aaron.f.brown@xxxxxxxxx>
    Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@xxxxxxxxx>

-- 
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https://bugs.launchpad.net/bugs/1425333

Title:
  Precise kernel lockup with Intel Corporation 82579LM network
  interfaces

Status in linux package in Ubuntu:
  New

Bug description:
  It was brought to my attention the following lockup (and error
  message):

  Feb  1 21:17:54 hostname kernel: [10461681.674619] NETDEV WATCHDOG:
  eth0 (e1000e): transmit queue 0 timed out

  """
  Feb  1 21:17:54 hostname kernel: [10461681.674613] WARNING: at /build/buildd/linux-3.2.0/net/sched/sch_generic.c:255 dev_watchdog+0x25a/0x270()
  Feb  1 21:17:54 hostname kernel: [10461681.674616] Hardware name: HP Z210 Workstation
  Feb  1 21:17:54 hostname kernel: [10461681.674619] NETDEV WATCHDOG: eth0 (e1000e): transmit queue 0 timed out
  Feb  1 21:17:54 hostname kernel: [10461681.674622] Modules linked in: nvidia(P) btrfs zlib_deflate libcrc32c ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs xfs reiserfs ext2 openafs(P) bnep rfcomm bluetooth autofs4 parport_pc ppdev nfsd nfs binfmt_misc lockd fscache auth_rpcgss nfs_acl sunrpc snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq joydev hp_wmi snd_timer snd_seq_device snd mei(C) psmouse soundcore sparse_keymap serio_raw mac_hid wmi snd_page_alloc lp parport dm_multipath ses enclosure hid_logitech_dj usb_storage usbhid hid e1000e [last unloaded: nvidia]
  Feb  1 21:17:54 hostname kernel: [10461681.674683] Pid: 0, comm: swapper/0 Tainted: P         C O 3.2.0-69-generic #103-Ubuntu
  Feb  1 21:17:54 hostname kernel: [10461681.674684] Call Trace:
  Feb  1 21:17:54 hostname kernel: [10461681.674685]  <IRQ>  [<ffffffff8106844f>] warn_slowpath_common+0x7f/0xc0
  Feb  1 21:17:54 hostname kernel: [10461681.674692]  [<ffffffff8104f634>] ? __enqueue_entity+0x74/0x80
  Feb  1 21:17:54 hostname kernel: [10461681.674694]  [<ffffffff81068546>] warn_slowpath_fmt+0x46/0x50
  Feb  1 21:17:54 hostname kernel: [10461681.674696]  [<ffffffff81025392>] ? x86_pmu_enable+0x1f2/0x270
  Feb  1 21:17:54 hostname kernel: [10461681.674699]  [<ffffffff815684fa>] dev_watchdog+0x25a/0x270
  Feb  1 21:17:54 hostname kernel: [10461681.674701]  [<ffffffff81113310>] ? perf_rotate_context+0x110/0x220
  Feb  1 21:17:54 hostname kernel: [10461681.674703]  [<ffffffff815682a0>] ? qdisc_reset+0x50/0x50
  Feb  1 21:17:54 hostname kernel: [10461681.674705]  [<ffffffff815682a0>] ? qdisc_reset+0x50/0x50
  Feb  1 21:17:54 hostname kernel: [10461681.674708]  [<ffffffff81077456>] call_timer_fn+0x46/0x160
  Feb  1 21:17:54 hostname kernel: [10461681.674710]  [<ffffffff815682a0>] ? qdisc_reset+0x50/0x50
  Feb  1 21:17:54 hostname kernel: [10461681.674712]  [<ffffffff81078da2>] run_timer_softirq+0x132/0x2a0
  Feb  1 21:17:54 hostname kernel: [10461681.674715]  [<ffffffff81096655>] ? ktime_get+0x65/0xe0
  Feb  1 21:17:54 hostname kernel: [10461681.674717]  [<ffffffff8106fce8>] __do_softirq+0xa8/0x210
  Feb  1 21:17:54 hostname kernel: [10461681.674719]  [<ffffffff8109d664>] ? tick_program_event+0x24/0x30
  Feb  1 21:17:54 hostname kernel: [10461681.674723]  [<ffffffff8166e4ac>] call_softirq+0x1c/0x30
  Feb  1 21:17:54 hostname kernel: [10461681.674725]  [<ffffffff81016495>] do_softirq+0x65/0xa0
  Feb  1 21:17:54 hostname kernel: [10461681.674727]  [<ffffffff810700ce>] irq_exit+0x8e/0xb0
  Feb  1 21:17:54 hostname kernel: [10461681.674729]  [<ffffffff8166ee5e>] smp_apic_timer_interrupt+0x6e/0x99
  Feb  1 21:17:54 hostname kernel: [10461681.674731]  [<ffffffff8166cd1e>] apic_timer_interrupt+0x6e/0x80
  Feb  1 21:17:54 hostname kernel: [10461681.674732]  <EOI>  [<ffffffff8101d721>] ? __switch_to_xtra+0x171/0x180
  Feb  1 21:17:54 hostname kernel: [10461681.674737]  [<ffffffff813713ad>] ? intel_idle+0xed/0x150
  Feb  1 21:17:54 hostname kernel: [10461681.674739]  [<ffffffff8137138f>] ? intel_idle+0xcf/0x150
  Feb  1 21:17:54 hostname kernel: [10461681.674742]  [<ffffffff8150e001>] cpuidle_idle_call+0xc1/0x290
  Feb  1 21:17:54 hostname kernel: [10461681.674744]  [<ffffffff8101322a>] cpu_idle+0xca/0x120
  Feb  1 21:17:54 hostname kernel: [10461681.674746]  [<ffffffff8162a4fe>] rest_init+0x72/0x74
  Feb  1 21:17:54 hostname kernel: [10461681.674750]  [<ffffffff81cfcc06>] start_kernel+0x3b5/0x3c2
  Feb  1 21:17:54 hostname kernel: [10461681.674752]  [<ffffffff81cfc388>] x86_64_start_reservations+0x132/0x136
  Feb  1 21:17:54 hostname kernel: [10461681.674754]  [<ffffffff81cfc140>] ? early_idt_handlers+0x140/0x140
  Feb  1 21:17:54 hostname kernel: [10461681.674756]  [<ffffffff81cfc459>] x86_64_start_kernel+0xcd/0xdc
  Feb  1 21:17:54 hostname kernel: [10461681.674757] ---[ end trace a84a3dbc98d19bff ]---
  Feb  1 21:17:54 hostname kernel: [10461681.674762] e1000e 0000:00:19.0: eth0: Reset adapter
  Feb  1 21:17:58 hostname kernel: [10461685.529232] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
  """

  This happens with the e1000e module on HP z210 systems.

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