kernel-packages team mailing list archive

[Shengyao Xue <1138787@xxxxxxxxxxxxxxxxxx>]

Hi Brad,

I tested the new kernel in -proposed (3.5.0-43), and the problem was
solved.

Tag changed.

** Tags removed: verification-needed-quantal
** Tags added: verification-done-quantal

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https://bugs.launchpad.net/bugs/1138787

Title:
  "Unknown unclaimed register" messages in haswell

Status in The Linux Kernel:
  Fix Released
Status in “linux” package in Ubuntu:
  Fix Released
Status in “linux” source package in Quantal:
  Fix Committed
Status in “linux” source package in Raring:
  New

Bug description:
  [Impact]
  There are a number of troubling "Unknown unclaimed register" messages that get put to dmesg with default log level on haswell machines. Some of these are erroneous, for example indicative of untidy bios.

  This bug is basically a tracker bug for
  https://bugs.freedesktop.org/58897

  first round of patches is here:

  http://lists.freedesktop.org/archives/intel-
  gfx/2013-February/thread.html#24866

  ..but instead of backporting those it makes more sense to just silence
  the error messages, since they are harmless.

  [Test case]
  just use the machine for a while, these messages appear for instance when suspending/resuming when the VT is shown for a while

  [Regression potential]
  none really, it just changes the severity of the messages so that they are not shown by default

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