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[Angel Genchev <1152580@xxxxxxxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 1331513 ***
    https://bugs.launchpad.net/bugs/1331513

Well i have the same problem with  the tg3 driver @ Broadcom 5719 NIC and HP ProLiant DL385 G8 server. Under Ubuntu 14.04, kernel 3.13.x. I get the  transmit timed out, resetting and the long table with hex codes in DMESG. 
But it worked well with 3.8 kernels on Ubuntu 12.x
I'm going to try changing the clock source (TSC selected by the kernel).  I'll try forcing PIT or HPET.

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https://bugs.launchpad.net/bugs/1152580

Title:
  14e4:165f [Dell PowerEdge R520] BCM95720 Network disconnects and
  resets

Status in The Dell PowerEdge project:
  Confirmed
Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  The server is constantly going on and offline here are messages and hardware Details:
  [    4.394703] tg3 0000:02:00.0: eth0: Tigon3 [partno(BCM95720) rev 5720000] (PCI Express) MAC address 90:b1:1c:0d:d4:aa
  [    4.394713] tg3 0000:02:00.0: eth0: attached PHY is 5720C (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[1])
  [    4.394720] tg3 0000:02:00.0: eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[1] TSOcap[1]
  [    4.394726] tg3 0000:02:00.0: eth0: dma_rwctrl[00000001] dma_mask[64-bit]

  The dump to dmesg:
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1152580/+attachment/3939814/+files/log

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-38-generic 3.2.0-38.61
  ProcVersionSignature: Ubuntu 3.2.0-38.61-generic 3.2.37
  Uname: Linux 3.2.0-38-generic x86_64
  AlsaDevices:
   total 0
   crw-rw---T 1 root audio 116,  1 Mar  8 13:26 seq
   crw-rw---T 1 root audio 116, 33 Mar  8 13:26 timer
  AplayDevices: Error: [Errno 2] No such file or directory
  ApportVersion: 2.0.1-0ubuntu17.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: [Errno 2] No such file or directory
  Date: Fri Mar  8 14:21:45 2013
  HibernationDevice: RESUME=UUID=f9a32355-70b4-462b-a01e-2665b81b2ec0
  InstallationMedia: Ubuntu-Server 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120817.3)
  MachineType: Dell Inc. PowerEdge R520
  MarkForUpload: True
  PciMultimedia:

  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-38-generic root=UUID=0c0140bd-05eb-4e5c-9596-1cf4dee88ae4 ro
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-38-generic N/A
   linux-backports-modules-3.2.0-38-generic  N/A
   linux-firmware                            1.79.1
  RfKill: Error: [Errno 2] No such file or directory
  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/21/2012
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.3.5
  dmi.board.name: 051XDX
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 23
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr1.3.5:bd08/21/2012:svnDellInc.:pnPowerEdgeR520:pvr:rvnDellInc.:rn051XDX:rvrA00:cvnDellInc.:ct23:cvr:
  dmi.product.name: PowerEdge R520
  dmi.sys.vendor: Dell Inc.

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