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[arbuntu <1164497@xxxxxxxxxxxxxxxxxx>]

[Unexpired -- nobody has bothered to investigate it yet the problem
still exists]

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

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https://bugs.launchpad.net/bugs/1164497

Title:
  108e:abcd niu 10g ethernet driver lock-up (Transmit timed out,
  resetting) and NETDEV WATCHDOG

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  Using niu driver for this card:
  "Oracle/SUN Multithreaded 10-Gigabit Ethernet Network Controller" (PCI id = 108e:abcd)
  after a period (often less than 24 hours) the interface will hang, with errors every 5 seconds
  "niu: xxx: eth2: Transmit timed out, resetting"

  Sometimes also in syslog are messages
  WARNING: at sch_generic:255 dev_watchdog
  NETDEV WATCHDOG: eth2 (niu): transmit queue 10 timed out

  I've seen this in kernel 3.5.0-26-generic #42~precise1-Ubuntu SMP installed from 12.04 server.
  I've also seen it in kernel 3.2.0-39-generic #62-Ubuntu SMP after I installed this older version as a test.
  (I've not *yet* seen it in kernel 3.2.0-38-generic #61-Ubuntu SMP which is running on a different computer, same hardware but installed from 12.04 then upgraded rather than being installed from 12.04.2 directly. The problem computer is also less heavily loaded in general than the one which has worked fine so far.)

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